69results about How to "Reasonable materials" patented technology

The invention discloses a composite multi-functional two-component aqueous wood white top coat, which comprises a component A, a component B and water according to a mass part ratio of 100:20-25:10-20, wherein the component A is prepared from the following raw materials by mass: an aqueous hydroxy acrylic acid resin, a compound modified self-cross-linking acrylic acid polymer, an aqueous titanium white slurry, an aqueous matting agent, a defoamer, a wetting agent, a thickening agent, a dispersant, a leveling agent, an anti-mildew bactericidal agent, and the balance of water, and the component B is prepared from the following raw materials by mass: hydrophilic aliphatic polyisocyanate and propylene glycol methyl ether acetic acid ester. The composite multi-functional two-component aqueous wood white top coat of the present invention has advantages of good antibacterial effect, good aldehyde removing effect, good stain resistance, environmental protection, good hardness, high fullness, and moderate cost.

The invention relates to a manufacturing method of a herbicide, the technical proposal of which is to oxidize PMIDA to get mixed glyphosate solution, separate 20-80 percent of mother liquor after keeping stationary with reaction pressure controlled between 0.04MPa and 0.095MPa and reaction temperature controlled between 60 DEG C and 95 DEG C, take partial water from heat reaction to add the agent taking 5-30 percent weight of the mixed glyphosate solution and padding taking 2-15 percent weight of the mixed glyphosate solution into the mixed glyphosate solution; after even stirring, spraying and granulation are to get granules of the glyphosate. The invention is characterized by scientific process, reasonable materials use, simple operation, low production costs and high product yields.

The invention relates to a dry mixing building mortar, which is characterized by comprising, by mass, 70.2-80% of limestone machine-made sand, 9-20% of cement, 1-11% of fly ash, and 0.1-0.8% of an admixture, wherein the admixture comprises a thickening agent and a modifier, the modifier is a mixture of starch ether, polysiloxane and polycarboxylic acid, the thickening agent is vinyl acetate homopolymerization rubber, and a weight ratio of the omopolymerization rubber to the starch ether to the polysiloxane to the polycarboxylic acid is 100:1.6:14.5:4.8.

The invention discloses meat sauce as well as a preparation method and application, and belongs to the technical field of food. Components of the meat sauce comprise large minced meat, fermented soyabeans, vegetable oil, soybean paste or broad bean sauce, oyster sauce, dark soy sauce, yellow wine, white vinegar, crystal sugar, white sesame seeds, peanut seeds, a spicy material (1), a spicy material (2), a spicy material (3), green onions, garlic, gingers and thin soup. The meat sauce disclosed by the invention is reasonable in nutrient arrangement, and the phenomenon of malnutrition caused byeating excessive meat sauce is avoided; due to reasonable selection of used materials and consumption of the soya beans and the spicy materials (1), (2) and (3), the meat sauce is warm in nature, haseffects of dispersing wind and relieving exterior syndrome, clearing heat and relieving fidgetiness, dissolving thrombosis, detoxicating, regulating the meridians, soothing the liver and regulating Qi, warming the stomach and dispelling cold, invigorating the stomach and promoting the digestion, eliminating delays and resolving phlegm, and moistening dryness of intestines to stop diarrhea, and isa protective agent for bronchitis or other respiratory tract disorders; the protective agent is natural and has an aromatic flavor, can increase a sense of appetite and has a natural and anti-corrosion effect; and moreover, symptoms such as excessive internal heat and hypogeusia caused by eating the meat sauce are avoided, so that an effect of food therapeutic health with dinner is achieved.

The invention relates to a non-contact energy-gathered igniter. The non-contact energy-gathered igniter comprises a cumulative charge warhead, an explosion transmission assembly and a magnetic electric detonator which are sequentially connected. The cumulative charge warhead comprises a warhead shell, a rubber sleeve, an end cover, an energy-gathered charge shell, explosive and a cartridge shape cover. The cartridge shape cover is arranged inside the energy-gathered charge shell. An airtight clearance is reserved between the cartridge shape cover and the energy-gathered charge shell. The clearance is filled with the explosive. The energy-gathered charge shell is arranged inside the warhead shell. The rubber sleeve is located between the energy-gathered charge shell and the warhead shell. The end cover is installed at the opening of the warhead shell. The non-contact energy-gathered igniter has the beneficial effects that all types of dangerous unexploded ordnances on the earth surface can be destructed through high-speed, high-energy and high-temperature metal jet without making direct contact with the dangerous ordnances. The unexploded ordnances which is small in burial depth and visual in bullet hole can be not excavated, and therefore manual excavation danger is reduced, destruction efficiency of the dangerous ordnances can be improved, and the applied prospect is wide.

The invention relates to an anti-cracking-shedding and strong-adhesion dry mixing plastering mortar, which is characterized by comprising by mass: 36-45% of limestone machine-made sand, 35-45% of yellow sand, 9.2-18.2% of cement, 1-10% of fly ash, and the balance of an admixture, wherein the admixture comprises a modifier and a thickening agent, the modifier is a mixture of starch ether, polysiloxane and polycarboxylic acid, the thickening agent is styrene and butadiene copolymerization rubber powder, and a weight ratio of the styrene and butadiene copolymerization rubber powder to the starch ether to the polysiloxane to the polycarboxylic acid is 100:1.6:14.5:4.8.

The present invention provides a food. The food comprises the following raw materials in percentages by weight: 10%-90% of wheat flour, 3%-25% of a traditional Chinese medicinal composition, 0.01%-15% of a swelling agent, 1%-35% of a sweetening agent, 1%-35% of oil, 0.1%-5% of edible salt and 0.001%-10% of essences. The traditional Chinese medicinal composition is characterized by comprising the following raw materials in parts by weight: 1-15 parts of ginsengs, 3-25 parts of poria cocos, 5-50 parts of Chinese yams, 2-25 parts of lotus seeds, 3-50 parts of coix seeds and 3-25 parts of semen lablab album. The food has functions of preventing and treating chronic gastritis, peptic ulcers, chronic diarrhea, functional dyspepsia, ulcerative colitis, spleen and stomach weakness syndromes, abdominal distension or abdominal pains, and inappetence, and benefits qi, strengthens spleen and nourishes stomach.

The invention discloses waterborne wood floor paint for roller painting of containers. The waterborne wood floor paint comprises a first component, a second component and water in a mass ratio of 100:5-10:10-20. The first component is prepared from a composite modified self-crosslinking acrylic polymer, a composite modified wear-proof polymer, an anti-foaming agent, a dispersing agent, a waterborne flatting agent, a thickening agent, a leveling agent, smoothening and anti-adhesion additives, an anti-mildew bactericide and the balance water. The second component is prepared from a composite modified cross-linking agent and water. The waterborne wood floor paint for roller painting of the containers is great in effect, environmental friendly, especially suitable for roller painting, excellent in anti-foaming performance and abrasion resistance, high in hardness, excellent in anti-cracking performance under cold and hot conditions, anti-adhesion performance at a high temperature and water resistance, quick in drying, moderate in cost, easy in construction and high in efficiency.

The invention discloses high-strength whitening glaze slurry for ceramic and a preparation method of the high-strength whitening glaze slurry. The glaze slurry is prepared from raw materials and water through mixing and ball milling; the raw materials comprise, in parts by weight, 16-22 parts of potash feldspar, 15-19 parts of calcite, 16-20 parts of quartz, 10-14 parts of frit, 1-5 parts of sodium carbonate, 10-14 parts of calcium carbonate, 0.5-2.5 parts of dolomite, 4-6 parts of a whitening agent and 0.5-2.5 parts of a reinforcing agent, wherein the whitening agent is prepared from 50-70 parts of kaoline, 50-70 parts of titanium dioxide, 1-2 parts of calcium stearate and 2-4 parts of gamma-chloropropyltrimethoxysilane; the reinforcing agent is prepared from, in parts by weight, 10-14 parts of hydroxyapatite, 10-20 parts of calcined talc and 0.2-0.4 parts of an aluminum zirconium coupling agent. The high-strength whitening glaze slurry for the ceramic adopts reasonable materials, a preparation method is simple, the production cost is low, the performance is good, and the high-strength whitening glaze slurry is worth popularization and application.

The invention discloses a force-increasing test apparatus for tensile strength of a pull rod. The force-increasing test apparatus comprises a pedestal and a front plate, a middle plate and a rear plate which are disposed on the pedestal successively in parallel, wherein the front plate is fixedly provided with a limited block; a thrust seat is disposed between the rear plate and the middle plate; a connecting rod mechanism is disposed among the middle plate, the rear plate and the thrust seat; the rear plate is provided with a rotation regulating mechanism and a horizontal driving mechanism used for driving the thrust seat; and a to-be-tested pull rod is provided with a stress sensing device. The force-increasing test apparatus is advantageous in that tensile strength of the whole pull rod can be directly tested by the apparatus; the pulling force loaded on the pull rod when the pull rod is broken can be calculated accurately through the stress sensing device during the test; and the apparatus is simple in operations.

The invention provides a high-gloss water-based amino baking paint and a preparation method thereof. The amino baking paint comprises the following raw materials: water-based hydroxyacrylic acid modified saturated polyester resin, low methyl etherification melamine resin curing agent, dimethylethanolamine, diethylene glycol monobutyl ether, compound pigment, wetting agent, dispersing agent, LF-1207 flash-rust inhibitor, BYK-141 defoaming agent, BYK-300 leveling agent and deionized water. The preparation method comprises the following steps: a) selecting the raw materials of the amino baking paint; b) grinding and dispersing to prepare slurry; and c) mixing and stirring to prepare the finished product. The invention discloses a high-gloss water-based amino baking paint and a preparation method thereof. The amino baking paint has the advantages of reasonable raw materials, simple preparation process, high paint film gloss and favorable surface effect. Meanwhile, the amino baking paint has excellent mechanical property, thus having a very high application value.

The invention discloses a high-temperature resistance rectangular electrical connector which comprises an electrostatic dustproof cover, a contact element, a rubber pad, a base, a housing, a pouring sealant and a wire. The housing is a rectangular shell with a pouring sealant ring groove; a pressure welding barrel of the contact element is pressure-welded with one end of the wire to form a contact element assembly; the contact element assembly is arranged in a base injection mould; after the base is subjected to injection molding, a base assembly is formed; the base assembly is arranged inside from the tail end of the housing; the pouring sealant is poured into a cavity formed by the pouring sealant ring groove of the housing and the base assembly; the rubber pad is arranged inside from the top end of the housing; the electrostatic dustproof cover is arranged at the top end of the housing. Aiming at the practical functions of key parts of the electrical connector, the high-temperature resistance rectangular electrical connector selects different materials, adopts different processes and has the advantages of being reasonable in material selection, simple in structure, good in high-temperature resistance, safe in working and high in reliability by reasonable structural optimal combination.

The invention discloses a plant-based water-based artistic paint, which comprises a component A, a component B and water, the component A is mainly composed of an odorless plant-based formaldehyde-removal emulsion, siloxane modified nano silica sol, water-based special modified PU resin, elastic acrylic micro powder, modified ultrafine glass powder, ultrafine sand flour, sepiolite, a functional assistant, other assistants and water; and the component B mainly comprises water-based color paste, pearlescent pigment and water. According to the plant-based water-based artistic paint, the plant-based emulsion is used as a main film forming substance; the siloxane modified nano silica sol and the water-based special modified PU resin are introduced for compound modification; the high-weather-resistance suede colorful effect coating can be formed on a wall surface base material and a woodware base material, has the characteristics of being odorless, environment-friendly, low-carbon, energy-saving, super-smooth velvet in texture, capable of covering tiny cracks, high in hardness, scratch-resistant, scrawling-resistant, stain-resistant, formaldehyde-removing, mould-resistant and the like, does not contain organic waste gas such as formaldehyde, and is healthy and environment-friendly. The invention also discloses a preparation method of the plant-based water-based artistic paint.

The invention relates to an injection-type platelet lysate-loaded temperature-sensitive hydrogel-high-dispersion nanoparticle system. The system comprises temperature-sensitive hydrogel, and a platelet lysate-loaded heparin / epsilon-polylysine nanoparticle embedded into the temperature-sensitive hydrogel. A double slow-release microsphere hydrogel system is designed for the first time to load platelet lysate, and the system is applied to cartilage tissue engineering. The effects of single injection, long-acting slow release and continuous curative effects are achieved. A material is designed according to the characteristics of the platelet lysate itself for the first time, the situation that the platelet lysate with heterogeneous particle distribution can affect the physical characteristicsof the hydrogel is found for the first time, and the situation can be well improved through microsphere construction, so that the constructed material is more reasonable.

The invention discloses a grid type membrane module with a glass fiber braided tube, which consists of a coated or cured glass fiber braided tube, water collecting pipes at two ends, a water collecting pipe in the middle, a membrane pipe hoop and a water collecting vertical pipe. The grid type membrane module is characterized in that: the coated or cured glass fiber braided tube is braided by using a glass fiber yarn material, a surface curing material is silica gel, and a surface coating material is a polymer organic material; and the coated or cured glass fiber braided tube is correspondingly fixed on a small water collecting terminal of the water collecting pipe through the membrane pipe hoop or binding, and can be mounted and replaced by using a single filament. The grid type membrane module with the glass fiber braided tube is manufactured by connecting one or more membrane fragments; membrane module sludge cannot be silt up between the membrane modules and between membrane yarns; and the grid type membrane module has the advantages of large membrane flux, corrosion-resistant material, reasonable structure, high mechanical strength, easy mounting, simple replacement, and low manufacturing cost and running cost.

This invention relates to a combined window that can be sliding. The sliding sash is consisted up by nine sections. 1) Section material is a. outline border group frame section material, b. sliding frame group frame section material, c. the sash group frame section material, d. screen window group frame section material, e. up bright window group frame section material. 2) The second section is face type hinge group frame, wheel, hitch angle and hinge group frame. 3) The third section is outline border group frame. 4) The fourth section is lock group. 5) The fifth section is sliding frame group frame. 6) The sixth section is horizontal open window sash group frame. 7) The seventh section is screen window group frame. 8) The eighth section is up bright window group frame. 9) The ninth section is clear wiper. The advantage is that many sliding on original down sliding is eliminated to make down window frame be plane and wipping is easy. It can be installed as an integer, and the installation is easy and simple, and transport is convenient. Consumer can exchange the glass, heat insulating ability is certainly raised. Window sash is opened inside the house, so it is safe and reliable, noise is little, daylighting and sealing effect is good, cost is low, and installation and using is convenient.

The present invention provides an electric connecting method for plugs, sockets, mobile sockets, cable couplers, appliance couplers and the like of indoor and outdoor and the device thereof. The electric connecting device comprises a rotary rebound wedge type connecting head of a metal contact A with a guide positioning concave groove and a wedge face C and a rotary rebound wedge type connecting base of a metal contact B with a guide positioning convex platform and a wedge face D, and completes the electric connecting through the mutual wedge of the wedge face C of the metal contact A and the wedge face D of the metal contact B. The present invention has wide application range, guaranteed safety and can prevent accident electric shock (the conductor can not contact the conductive elements even if putting into the hole with opened hole. The connector has no exposure of electrical objects after connecting or during connecting, thereby effectively improving safety coefficient and preventing occurrence of accident electric shock.), thereby greatly reducing arc rising and preventing explosion transmission. The present invention has the advantages of easy acquisition of material, simple art, large amount of copper saving, low cost, standardization, reasonable structure, simple operation and reliable connection performance. The connecting device has self locking function in connection with the power source in particular and can not loosen off due to shock, attack and external force (at the time the connecting device are wedged with each other so as to form a clipping state with good performance of conduction, anti-shock, anti-attack and anti-falling and can be pulled out only through correct operation by hand) and has good electric connection effect.

The invention relates to the technical field of transformation of large horizontal tubular kilns, in particular to a large horizontal tubular kiln. The large horizontal tubular kiln comprises a steelshell and a heat insulation layer which is constructed by high-strength light-weight insulation bricks. A vault structure formed by the heat insulation layer is attached to the inner wall of the steelshell, a wear layer made of corundum-mullite wear-proof and refractory plastic adheres to the heat insulation layer. Anchoring parts made of heat-resistant stainless steel is welded to the inner surface of the steel shell. One end of each anchoring part is welded to the inner wall of the shell, and the other end of each anchoring part penetrates through the heat insulation layer to stretch into the wear layer. The anchoring parts are used for fixing the heat insulation layer and the wear layer to the inner wall of the steel shell. According to the large horizontal tubular kiln, the anchoringparts are directly welded to the inner surface of the steel shell and penetrate through the heat insulation layer to directly stretch into the wear layer, and a wear-proof lining is firmly fixed to the steel shell, so that the heat insulation layer is further reinforced; and a complete composite structure with good heat insulation performance, wear resistance, alkali corrosion resistance and anti-seismic performance is formed, so that the overall using effect of the large horizontal tubular kiln is improved, and the service life of the large horizontal tubular kiln is prolonged.

The invention provides a cell corner joint combination for furniture. The cell corner joint combination comprises a large edge and a stool. Oblique edges are respectively arranged at two ends of the large edge and two ends of the stool by means of cutting, long joints are respectively arranged at stiles at two ends of the large edge by means of chiseling, a small joint is additionally reserved at each edge margin position, each long joint is longer than each small joint, and joint holes are respectively formed in symmetrical positions of the small joints and the stool. The long joints and the small joints of the cell corner joint combination are simultaneously inlaid in the joint holes when assembled, accordingly, the large edge and the stool can be spliced with each other, and straight slots are formed in borders of the large edge and the stool. The cell corner joint combination has the advantages that the cell corner joint combination is high in tolerance, reasonable in material consumption and structure and appropriate in proportion and dimension and is neat and attractive; stress is jointly borne by right angles and oblique angles, accordingly, wood frames are difficult to deform, and the firmness degree of the furniture can be improved.

The invention belongs to the technical field of panty liner, in particular to a graphene panty liner, which comprises a panty liner body, wherein the panty liner body comprises a bottom layer, an absorption layer, an anti-reverse osmosis layer, a flow guiding layer, an absorption core and a graphene uterine warming layer; wherein the absorption layer is arranged on the front side of the bottom layer; the anti-reverse osmosis layer is arranged on the front side of the absorption layer; by adoption of the invention, a first hot melt adhesive layer and a second hot melt adhesive layer are connected with the panty liner body through a velcro, so that the panty liner body can be folded and bonded after use; by means of the velcro, the first hot melt adhesive layer and a second hot melt adhesivelayer, the purpose of folding and bonding of the panty liner body after use is achieved, which greatly saves the space saving and looks more elegant at the same time, , by means of setting the material of absorbing core as grain fiber, the double advantages of dry and soft are achieved, which abandons the shortcomings of traditional single mesh and cotton surface, greatly increases the using comfort and ensures women's health, and the panty liner has characteristics of reasonable structure, healthy material and strong practicability.

The invention relates to a method for designing a support on a rear-axle bogie used for a coach chassis assembling line. The support comprises a supporting plate, connectors, reinforcing ribs and a bottom plate, and is characterized by further comprising a foldable leaf spring supporting plate and two return trough plates with bent elongated holes, the foldable leaf spring supporting plate is disposed on the top of the supporting plate, the two return trough plates are welded on one side of the foldable leaf spring supporting plate symmetrically and arranged on the same side with the two first reinforcing ribs welded on the supporting plate. Connecting bolts penetrate through the two bent elongated holes and can vertically slide therein, the two return trough plates are hinged with the first reinforcing ribs through the connecting bolts, and the bending angle of each bent elongated hole ranges from 115 degrees to 125 degrees. The support designed by the method is high in universality, simple in structure and convenient in use.

The invention discloses a lightweight partition wall board containing lignin. The partition wall board disclosed by the invention is reasonable in material use, and can be used for reducing the dead weight of a construction in a building and saving steel and cement when being used as an interior wall; and because the lightweight partition wall board contains raw materials including lignin and the like, the strength of the partition wall board can be increased, and the seismic grade of the building can be improved.

The invention provides a seedling raising substrate for a bitter gourd. The seedling raising substrate is composed of the following materials in parts by weight: 45 to 55 parts of waste mushroom-sticks, 60 to 80 parts of sandy soil, 40 to 60 parts of vermiculite, 30 to 50 parts of perlite and 10 to 12 parts of an acrylamide-acrylate cross-linked copolymer. According to a scheme of the invention, the seedling raising substrate has the following advantages: combination is reasonable; the materials are environmentally friendly; addition of the waste mushroom-sticks realizes reutilization of domestic wastes, so wastes are turned into treasures; meanwhile, abundant nutrient elements can be provided for the growth of bitter gourd seedlings; the germination rate of the bitter gourd is improved by25%; the sandy soil can increase air permeability of the substrate, and can change looseness and water absorptivity of soil; the perlite can prevent the soil from hardening, and facilitates the growth of a plant; and addition of the acrylamide-acrylate cross-linked copolymer can maintain the water absorption rate and speed of the substrate in two years, so moisture of the substrate is guaranteed.

The invention discloses a frame type rubber diaphragm press filter. A plurality of groups of press filtering units which are connected in sequence are arranged between a compression plate and a thrust plate on a rack, and are rubber filtering frames and frame type rubber diaphragm filtering plates which are connected; charge holes in the middle parts of the filtering plates are provided with support cloth clamping devices; the frame type rubber diaphragm filtering plates are provided with rubber core plates; rubber cells are compounded on the left and right surfaces of the rubber core plates; seal empty cavities are formed between groove bottom plates of the left and right rubber grooves and the corresponding plate surfaces of the rubber core plates; gas inlets and outlets of the seal empty cavities are formed in the lateral edges of the frame type diaphragm filtering plates; bulges are uniformly distributed on the bottom parts of the grooves of the frame type diaphragm filtering plates; the support cloth clamping devices are provided with tooth meshed type rapid connecting rings the left and right ends of which are connected with support pipes by screws; the distance between openings of the left and right support pipes is equal to the thickness of each press filter unit; opening grooves are uniformly distributed in the support pipe openings. The volume of the filter chamber is large; the seal property among the plurality of groups of press filtering units is good; in press filtering, the filtering plates or the frame type filter plates are difficult to deform; the squeeze dehydration performance is good.

Cassia twig, poria cocos, medicated leaven, folium sennae, rhizoma alismatis, hawthorn, lotus leaf, dried ginger, semen pharbitidis, phaseolus calcaratus, rheum officinale, semen brassicae, rhizoma atractylodis, pericarpium citri reticulatae, eupatorium fortunei and mangnolia officinalis are used, the compatibility is scientific, the used materials are reasonable, and the effects of eliminating dampness and losing weight are achieved through synergistic interaction. The traditional Chinese medicine composition has the effects of promoting qi circulation to relieve pain, promoting blood circulation to remove blood stasis, removing stasis to relieve swelling, clearing away heat and toxic materials, dispersing blood stasis to stop bleeding, dispelling wind to dredge collaterals, tonifying middle-Jiao and reducing blood pressure to achieve the effects of relieving swelling and pain and dispersing wind-heat. The traditional Chinese medicine composition has the effects of tonifying Yin and Yang, nourishing Yin and suppressing Yang, treating both symptoms and root causes, and clearing damp and losing weight.

The invention discloses a solar water heater collector pipe with high strength and high heat efficiency. The solar water heater collector pipe with high strength and high heat efficiency comprises a vacuum pipe and a collector pipe. The vacuum pipe comprises a polymethyl methacrylate pipeline; a flexible transparent protective film uniformly covers the outer side of the polymethyl methacrylate pipeline; the collector pipe comprises a metal heat conducting pipeline; support rods are fixedly connected between the metal heat conducting pipeline and the polymethyl methacrylate pipeline; a heat absorbing coating coats the outer side of the metal heat conducting pipeline; a tempered glass protective layer is arranged on the outer side of the heat absorbing coating; heat conducting shunting pipe pieces are arranged on the inner wall of the metal heat conducting pipeline; the vacuum pipe is arranged on a collector pipe installation base. The solar water heater collector pipe with high strength and high heat efficiency provided by the invention is simple in structure, selected materials are reasonable, and not only can the collector pipe be prevented from being damaged, but also the heat efficiency of the collector pipe can be improved.

The invention discloses synergic regulator for cultivation of sound cotton seedlings by nutrition pots and application of the synergic regulator. The synergic regulator comprises, by weight percent, 62.5% of 1, 1-dimethyl piperidine chloride, 25% of 1-methylcyclopropene and 12.5% of abscisic acid. The regulator is prepared into synergic regulator solution which is applied in the one-leaf and one-core period of cotton seedlings, the synergic regulator solution is sprayed to a seedling bed for cotton nutrition pots, concentration of the DPC in the synergic regulator solution is 100ppm, concentration of the abscisic acid in the synergic regulator solution is 20ppm, and concentration of the 1-methylcyclopropene in the synergic regulator solution is 40ppm. 1.6g of the synergic regulator solution is sprayed per mu of seedling bed. Obtaining of materials for the synergic regulator is scientific, preparation ratio is reasonable, and the novel cotton seedling growth regulator is capable of quickening leaf emergence for the cotton seedlings, promoting growth and development of cotton, shortening seedling raising time, inhibiting overgrowth of stem and leaf and promoting root amount and activity to form sound seedlings.

The invention provides a composite reinforced PET material. The composite reinforced PET material is prepared from the following raw materials by weight percent: 60 to 65 percent of PET resin slices, 1.2 to 1.8 percent of inorganic particles, 10 to 14 percent of composite flame retardant and 22 to 26 percent of glass fibers. The PET material is reasonable in raw material consumption, simple in preparation process and excellent in mechanical performance, heat performance, flame retardant performance and machining performance, the application value in the production of the PET sheet material is high, and the market prospect is wide.

The invention discloses a 3D printing method of concrete special-shaped beams without web reinforcement. A concrete special-shaped beam member without the web reinforcement comprises a rectangular flange layer, a curved web layer, a bent reinforcing mesh layer and an external concrete cover in sequence from top to bottom. The 3D printing method is characterized by comprising the following steps ofprinting the rectangular flange layer and the curved web layer in sequence by adopting a 3D concrete printing technique, then manually arranging the reinforcing mesh layer, and finally, printing theconcrete cover by adopting the 3D concrete printing technique. According to the method, through modeling optimization, concrete is arranged according to the stress condition of the beam, so that the using amount of concrete materials is reduced, and reinforcing steel bars are laid in the printing direction in a printing process, so that the inconvenience in construction due to post installation ofhorizontal bars is avoided, additionally, the problem of bonding of the reinforcing steel bars and the concrete during post installation is solved, and the construction is simplified.

The invention relates to a flexible energy dissipation vehicle-collision-preventing structure of a tunnel portal and a mounting method of the flexible energy dissipation vehicle-collision-preventing structure. The flexible energy dissipation vehicle-collision-preventing structure comprises a collision-preventing body energy dissipation assembly and a roller guiding assembly which are assembled front and back. The collision-preventing body energy dissipation assembly internally comprises a vertical stand column and collision-preventing bodies around the stand column. The roller guiding assemblycomprises a vertical rotating shaft and a roller outside the rotating shaft. According to the flexible energy dissipation vehicle-collision-preventing structure of the tunnel portal and the mountingmethod of the flexible energy dissipation vehicle-collision-preventing structure, a vehicle is guided into a tunnel through guiding and intercepting ways to avoid collision of the vehicle and the holewall, and the effects that great energy is dissipated, and impact force is reduced are achieved; when side face impact of the vehicle occurs, collision-preventing facilities of the tunnel portal reduce energy exchanging through guiding and energy dissipation to reduce the impact force and guide the vehicle into the tunnel; and when front face impact occurs, guiding and energy dissipation can be achieved to reduce the impact force, so that damage is reduced, and a safety guarantee is provided for the tunnel portal.