53results about How to "High powder content" patented technology

The invention refers to a kind of in situ modified waste rubber powder compound material and the manufacturing method. The method puts the waste rubber powder pulverized by normal machine without surface preprocessing into each kind of rubber or thermal plasticity plastics by normal rubber plastic process and device, through specific conjugate ternary interpenetration polymer network and the interface conjugate interpenetration technique, the rubber powder and the rubber or the plastic are modified in situ and combined tightly, thus forms the sulfide rubber or thermal plasticity elastic material. The process is simple, the cost is low, and the product has a good performance, it can be applied to produce each kind of sulfide product or thermal plasticity elastic product.

The invention discloses water-in-oil titanium dioxide dispersion slurry. The water-in-oil titanium dioxide dispersion slurry is mainly prepared from, by mass, (a) 5-40% of titanium dioxide, (b) 5-30% of an oil phase composed of one or more oil-based components, (c) 0.5-5% of a mixed emulsifying agent composed of one or more emulsifiers, (d) 0.1-5% of a reverse emulsifier mixture composed of one or more reverse emulsifiers and (e) the balance water, wherein an HLB (hydrophile lipophile balance) value of the mixed emulsifying agent is 3-6. The water-in-oil titanium dioxide dispersion slurry has advantages of high powder content, high covering power, high stability and convenience in use.

The invention relates to a preparation method of hyperpure nitride powder. The preparation method comprises the following steps of fully mixing metal powder, a diluent and an additive in a pot mill to obtain an original mixture, screening the original mixture to obtain a reaction material, uniformly putting the reaction material into a graphite boat, closing a reactor with the graphite boat, carrying out vacuum-pumping, filling high-purity nitrogen into the reactor, and supplying power to nichrome wires to ignite a primer in the reactor, wherein the reaction material is ignited by heat produced by the primer and then produces the hyperpure nitride powder. In the reactor having high nitrogen pressure, through radiation ignition, a part of the reaction material is ignited, and through heat produced by a self-maintenance exothermic reaction of the powder and nitrogen, the reaction material fully reacts. The preparation method does not need an external heat source and has short reaction time. The hyperpure nitride powder obtained by the preparation method has high content and stable quality.

The invention discloses a baby diaper liquid talcum powder and a preparation method thereof. The method comprises the following steps: heating water to be boiling, keeping for 30min for sterilizing, then cooling to 40DEG C below, adding xanthan gum, hydroxyethyl acrylate/Sodium acryloyldimethyltaurate copolymer, stirring and homogenizing to be even; then adding sulfonated shale oil, tamanu oil, chitooligosaccharide, honey, SymDiol 68T and zinc oxide, stirring and homogenizing to be even; and finally adding cassava starch, and polymethylsilsesquioxane modified cassava starch, stirring until the liquid is fine and even, discharging to obtain the baby diaper liquid talcum powder. The liquid talcum powder is incapable of flying in use, the low protein content and unique vegetable activity are combined without the need of addition of essence and preservatives, the allergy concern can be reduced, no irritation to the skin exists, babies feel dry and comfortable after use, and the skin smoothness retention time is long.

The invention discloses novel NFC magnetic sheet slurry and a preparation method thereof. The novel NFC magnetic sheet slurry is composed of ferrite powder and aqueous system, and the aqueous system includes water, surface treating agent, adhesive and anti-foaming agent; the novel NFC magnetic sheet slurry is prepared through steps that (1) putting the surface treating agent, ferrite powder and water in a ball milling tank, and performing primary ball milling; (2) after the primary ball milling, adding anti-foaming agent and adhesive, and performing secondary ball milling; (3) taking out slurry after the secondary ball milling, and performing vacuum defoamation to obtain the NFC magnetic sheet slurry. The novel NFC magnetic sheet slurry and the preparation method thereof have beneficial effects that the environmental requirement is satisfied, and the preparation cost can be lowered; the content of the ferrite powder in the slurry system can be effectively improved, and accordingly the water content is lowered, the water volatilization efficiency can be improved, the magnetic powder content of the ferrite raw piece can be improved, and the magnetic performance of the magnetic piece is improved; the sedimentation problem of the ferrite powder in water base slurry can be effectively solved, and the product sintering yield is improved after using the water base slurry.

The invention relates to an anti-mud additive suitable for machine-made sand concrete and a compounding method thereof. The anti-mud additive comprises the following components in parts by weight: 30-50 parts of a lignosulfonate water reducing agent, 20-35 parts of a viscosity reduction type polycarboxylic acid water reducing agent, 0.2-0.25 part of a defoaming agent and 20-45 parts of water. Thecompounding method specifically comprises the following steps: mixing and compounding the mud-resistant admixture and the machine-made sand concrete, wherein the performance of the machine-made sand concrete can be changed by changing the adding sequence of the lignosulfonate water reducing agent. Compared with the prior art, the anti-mud additive can be used for improving the mud resistance of the machine-made sand concrete, and the cohesiveness and compressive strength of the machine-made sand concrete can be remarkably improved.

The invention discloses a black fungus modifying method and application, belonging to the technical field of food processing. The method comprises the steps of removing impurities in black fungus; carrying out primary cleaning, then soaking the black fungus subjected to primary cleaning by a soluble starch water solution; drying after spin drying, and taking out the dried black fungus and putting the black fungus into a pressure container; sealing the container, heating, pressurizing, and rapidly releasing the pressure to achieve the normal pressure, thus obtaining the modified black fungus. The black fungus processed by the modifying technology has relatively small and uniform pulverization fineness, the brittleness of the fibers of the modified black fungus is increased, so that the black fungus is easily broken to be easily pulverized. The nutrients are easily digested to be absorbed, the nutrients of the modified black fungus are retained, and the dissolution rate is relatively high. The crude fat of the modified black fungus is increased by 0.4%; and the crude fibers of the modified black fungus are reduced by 2.15%.

The invention discloses a carbon-based lithium adsorbent particle for liquid lithium resource extraction. No adhesive needs to be added in the forming process of the adsorbent particles, and carbon has a fixing effect on adsorbent powder; the size is stable, and swelling is avoided in long-term use in strong acid, strong alkali and water; strong acid resistance and strong alkali resistance are achieved, and lithium adsorption under the alkaline condition and desorption operation under the acidic condition can be met; the carbon-based particles have pore structures and can exchange with a solution in the adsorption and desorption process, so that the efficiency is improved. Another purpose of the invention is to provide a preparation method of carbon-based adsorbent particles extracted from liquid lithium resources, and the preparation method comprises the following steps: carrying out extrusion granulation on water-absorbent resin, preparing high-strength water-absorbent particles by using a secondary cross-linking process, and carbonizing the high-strength water-absorbent particles to prepare carbon-based adsorbent particles; the invention also aims to provide a preparation device of the carbon-based adsorbent particles for extracting the liquid lithium resource. The preparation device has the advantages that one set of equipment can be used for producing various products, continuous production can be realized, and the like.

The invention discloses a flexible temperature-resistant printing magnetic membrane material. The flexible temperature-resistant printing magnetic membrane material is composed of a printing PVC membrane layer, a PET membrane layer and a magnetic layer which are tightly connected in sequence, and is characterized in that the PET membrane is transparent, and the thickness of the PET membrane layeris 0.005-0.08 mm. The flexible temperature-resistant printing magnetic membrane material has the advantages that compared with a product of the same structure, the PET membrane becomes thinner, Latexprinting of the flexible printing magnetic membrane material can be still guaranteed, meanwhile, printing quality is improved, the flexibility of the product is guaranteed, a thickness space is provided for the magnetic layer, and accordingly the magnetic property of the product can be better exerted; the flexible temperature-resistant printing magnetic membrane material is high in generality, further suitable for curing of a weak solvent, a solvent and UV, and suitable for digital printing, air brush, offset print and others.

The invention discloses a preparation method of a drug-loaded wound dressing. The method mainly comprises the following steps: adding polyurethane hydrogel particles, thermoplastic polyurethane particles and a solvent into a reactor, heating and stirring to fully dissolve the polyurethane hydrogel particles and the thermoplastic polyurethane particles in the solvent, and cooling to obtain a polyurethane solution; adding Yunnan Baiyao powder, stirring evenly to obtain a solid-liquid mixture, and defoaming under reduced pressure; uniformly applying the solid-liquid mixture to release paper, andimmersing the release paper in deionized water; after the solid-liquid mixture is completely cured for formation of a film, placing the film in a dry box at 50 DEG C; after cooling, removing the release paper to obtain a Yunnan Baiyao-immobilizing film; soaking the Yunnan Baiyao-immobilizing film in Callicarpa macrophylla Vahl extract for 3 hours, and freeze-drying under vacuum to obtain a double-drug-loading film; according to the actual application requirements, cutting the double-drug-loading film into an appropriate size, and pasting the cut double-drug-loading film onto medical non-wovengauze to obtain the product. The raw materials of the drug-loaded wound dressing are easy to obtain, the equipment is simple, and the product can stop bleeding, disperse blood stasis, relieve swellingand relieve pain, and has the effect of antisepsis and anti-inflammation.

The invention discloses a large-scale high-yield preparation method of trichoderma harzianum. The preparation method comprises the following steps: S1, performing inoculation, namely carrying out high-temperature sterilization treatment on a solid fermentation culture medium at 125 DEG C, then performing cooling, and inoculating trichoderma harzianum strains at the same time; S2, performing fermentation, namely carrying out culture fermentation on the inoculated solid fermentation culture medium by using a solid fermentation tank to obtain a solid fermentation product; and S3, performing preparation, namely drying and separating the solid fermentation product in the step S2 to obtain trichoderma harzianum spore powder and a fermentation product. According to the preparation method, large-leaf bran, extruded pomace and the wood chips are adopted in the solid fermentation culture medium, the large-leaf bran is high in wheat middling content, comprehensive in nutrition and good in permeability, the wood chips can provide fibers, is mainly used for stimulating cellulase production and has good permeability, and the extruded pomace can provide an acid environment and is good in permeability, therefore, the spore yield and the effective viable count of the trichoderma harzianum can be improved.

The invention discloses a method for improving replacement soil to increase the yield of potatoes in a newly-added cultivated land of a loess hilly region. The method comprises the steps of 1, selecting a target area of a field of the cultivated land newly added through gully treatment and land reclamation in the loess hilly region as an improvement land plot, and determining the area S of the selected improvement land plot; 2, obtaining a preset amount of late pleistocene Q3 malan loess as the replacement soil according to the area of the selected improvement land plot; 3, crushing the determined replacement soil in the step 2 into soil with the particle size smaller than 3 cm, evenly laying the improvement land plot with the soil, and fully conducting mixing; 4, applying manure and/or compound fertilizer as base fertilizer, and using a rotary tiller for ploughing; 5, planting the potatoes on the improved land plot after ploughing. The method has the advantages that the materials areconvenient to obtain, the cost is low, the soil texture can be quickly improved, the water and air permeability and porosity are enhanced, the soil tilth is improved, the quality of the potatoes is improved, and the yield of the potatoes is increased.