33results about How to "Effective crosslinking" patented technology

The invention discloses a composite insulation material for a cable and a preparation method thereof. The composite insulation material for a cable comprises the following materials by weight part: 30-60 parts of EPDM rubber, 70-40 parts of styrene-butadiene rubber, 1-4 parts of cross linker, 1-6 parts of cross linker addition agent, 4-16 parts of vulcanizing active agent, 1-4 parts of aging inhibitor, 10-40 parts of plasticizer, 1-3 parts of coupling agent and 100-200 parts of reinforcement filling material. The preparation method comprises the following steps: weighing the materials according to the weight parts; mixing; tabletting; cooling; and collecting. The composite insulation material is used for cable low-voltage insulation, has a temperature resistant level capable of reaching 90 DEG C, can resist heat, ozone and weathers and has high tensile strength, good electrical insulating property and mechanical property and cost being far lower than the cost of ethylene propylene rubber, and the preparation method is simple, applicable and easy to operate.

Microbe culture solution which contains a large number of viable bacteria is formed by fermenting microorganisms of which the main floras are acetic bacteria and yeasts; the microbe culture solution is mixed with a small amount of ethanol, acetic acid, sugar source, inorganic salt and the like; the mixture is added into a rubber latex; and latex particles are further solidified through the acetic acid and bacterial cellulose which are generated from nutrient substances in the rubber latex by the microorganisms, such as the acetic bacteria, yeasts and the like in the microbe culture solution. At the same time, the microorganisms decompose a large number of nutrient substances, such as a nitrogen source and the like, in the latex in a growing process, then the total solid content in solidified waste liquid is further reduced and pollution emission is reduced; and serum left in the solidified latex can serve as a culture medium of microorganism solidification liquid or a beneficial microbial ecological agent, and then the rubber latex is comprehensively used. The method has simple operation; by the method, the cost and the pollution are reduced and the rubber yield is improved; and the product produced by the method has better physical and chemical property than the product produced by acidic solidification.

The invention discloses an agriculture straw regeneration fire-proof heat preservation plate material. The agriculture straw regeneration fire-proof heatpreservation plate material comprises raw materials, by weight, 60-80 parts of agriculture straw, 10-15 parts of binder, 3-6 parts of metal oxide, 3-7 parts of water-proof agent, 3-5 parts of fire retardant, 15-20 parts of modified kaolin, 12-18 parts of white cement and 20-26 parts water. The agriculture straw regeneration fire-proof heat preservation plate material has the excellent properties of rapid prototyping, heat insulation and heat preservation, inflaming retarding, mould proof, deliquescence resistance, high strength and the like, the plate material is divided into a pressed inner core and an outer surface coating layer, the problems of being prone to breaking billet, sticking plate and demoulding are solved, continuous production is achieved, and the production efficiency is improved greatly; and meanwhile, the source of the main raw materials of the agriculture straw regeneration fire-proof heat insulation plate material is wide, the cost is low, the technology is simple and clear, and the high practical value and the good application prospect are achieved.

The invention discloses an environment-friendly sound-insulating interior building material. The environment-friendly sound-insulating interior building material comprises the following raw materials in parts by weight: 5-7 parts of polyvinyl acetate, 6-10 parts of polyvinyl alcohol, 4-8 parts of silica sol, 7-9 parts of a water-soluble polyurethane solution, 4-6 parts of nanometer carbon black, 15-17 parts of sound-insulating fiber, 10-16 parts of broken glass powder, 8-14 parts of glass microbeads, 5-9 parts of enhanced oxide, 7-9 parts of calcium carbonate powder, 8-12 parts of a compound flame-retardant additive, 25-35 parts of a mineral filler and 2-6 parts of a sterilizing additive. The environment-friendly sound-insulating interior building material has relatively good worm-proof, sterilizing, sound-absorbing and sound-insulating performance, and has relatively strong advantages in aspects of the uniformity, the breathability, the tensile strength, the elastic recovery rate and the heat-insulating function; meanwhile, the environment-friendly sound-insulating interior building material uses safe and reliable components as raw materials, is free of environment pollution, relatively low in cost and concise in process, and has a relatively high practical value and a good application prospect.

The invention relates to the technical field of biotechnology, and specifically relates to a p16 immunohistochemical detection kit. The p16 immunohistochemical detection kit comprises a primary antibody, namely, a freeze-dried powder p16 antibody, a colorless reagent, namely, 10-15ml of an endogenous peroxidase blocking agent, a reagent A, namely, an immunohistochemical confining liquid, a reagentB, namely, a biotin labeled secondary antibody working solution, a reagent C, namely, a horseradish peroxidase labeled streptavidin working solution, 1-2ml of a brown color developing solution D, 20-25ml of a white color developing solution E, 0.1M of a PBS buffer solution, a sodium citrate antigen retrieval solution and a diamino-benzidine DAB staining solution. The immunohistochemical detectionreagent produced by using a streptavidin-biotin signal amplification technology has the advantages of high sensitivity, strong specificity, accurate qualitative positioning, clear background, low-power scene staining, direct dropwise addition, convenient operation and short incubation time, and is suitable for frozen sections, paraffin sections and fixed cell smears; and the kit can be used for detecting specific antigens in cells and tissues.

The invention provides a coating liquid. The coating liquid comprises polydopamine nanoparticles. Compared with the prior art, the coating liquid contains the polydopamine nanoparticles with rich -OH and -NH groups, the polydopamine nanoparticles can serve as crosslinking points to achieve effective crosslinking and curing of a coating, and the stability of the coating is improved; besides, introduction of the nanoparticles contributes to construction of a coating surface with a micro-nanostructure, the water-resistant and waterproof performance of the coating can be further improved, the coarseness of the coating surface is improved, and the surface adhesive force of following coatings on the coating surface is further increased.

The invention discloses a waste straw composite board which is prepared from the following raw materials in parts by weight: 20-30 parts of epoxy glue, 8-12 parts of a modifying agent, 80-100 parts of waste straws, 10-15 parts of a tackifier, 6-8 parts of gypsum, 6-12 parts of shell powder, 2-4 parts of nano zinc oxide, 1-3 parts of nano titanium dioxide, 3-7 parts of a waterproof agent, 7-9 parts of a flame retardant, 8-14 parts of attapulgite and 25-35 parts of water. The waste straw composite board has the characteristics of being high in strength, good in moisture resistance, good in dimension stability, resistant to corrosion, retardant to flame, and attractive, the problems of easy blank dispersion, board sticking and difficult de-molding are avoided, the agricultural straws are greatly used to reduce cost and save resources, continuous production is realized, production efficiency is greatly improved, a process is simple, and the waste straw composite board has a relatively high practical value and good application prospect.

The invention discloses an environment-friendly material waterproof fire-retardant panel. The environment-friendly material waterproof fire-retardant panel is prepared from the following raw materials in parts by weight: 10 to 20 parts of white latex, 5 to 7 parts of silica sol, 4 to 6 parts of waterproof agent, 10 to 12 parts of fire retardant, 8 to 12 parts of reinforced modifier, 70 to 90 parts of straw, 10 to 15 parts of adhesion agent, 3 to 5 parts of tripolyphosphate, 7 to 9 parts of kaoline, 6 to 8 parts of gypsum, 5 to 7 parts of activated carbon, 6 to 12 parts of shell powder, 2 to 4 parts of nano-zinc oxide, 1 to 3 parts of nano-titanium dioxide, 8 to 14 parts of bentonite and 25 to 35 parts of water. As a large number of agricultural wastes are adopted in the environment-friendly material waterproof fire-retardant panel disclosed by the invention, resources are saved, cost is reduced, materials are poisonless and harmless, environment-friendly and healthy, furthermore, the panel is good in flame retardant property, high in strength, good in moisture resistance, good in size stability and corrosion-resistant, a preparation process is simple, and the environment-friendly material waterproof fire-retardant panel has a relatively high practical value and a good application prospect.

The invention discloses a preparation method of skyhigh nitrile crosslinking type powdery butadiene-acrylonitrile rubber. The preparation method comprises the following steps that firstly butadiene and acrylonitrile serve as monomers to synthesize butadiene-acrylonitrile latex through emulsion polymerization; then the butadiene-acrylonitrile latex is agglomerated into powder and subjected to centrifugal dehydration and drying, and the skyhigh nitrile crosslinking type powdery butadiene-acrylonitrile rubber is obtained. At the synthesis stage of the butadiene-acrylonitrile latex, the butadiene-acrylonitrile latex is prepared from 40-50 parts of acrylonitrile and 20-30 parts of butadiene; one of ammonium persulfate, potassium persulfate or diisopropylbenzene hydroperoxide is added into sodium formaldehyde sulfoxylate, ferrous sulfate, EDTA (ethylenediaminetetraacetic acid) tetrasodium and EDTA ferrisodium at the weight ratio of 1 to 0.5 to 0.25 to 0.1 to 0.1 to form a compound which serves as an initiator. The invention further discloses skyhigh nitrile crosslinking type powdery butadiene-acrylonitrile rubber prepared by adopting the method. The preparation method has the advantagesthat the polymerization reaction technology with high and mediate temperature combining is adopted; polymerization conversion rate is high, and no acrylonitrile and butadiene recycling devices are needed; the monomers react completely, and the cost is low; product quality stability is effectively improved, and oil resistance is better; the crosslinking of molecular chains is effectively completed,and the abrasion resistance and the heat resistance of the product are better.

The invention discloses a preparation method of a functionalized silk fabric. The method comprises the following steps: preparing an alginate fiber spinning solution; preparing rectorite as a raw material to prepare a rectorite refined solution; adding the rectorite refined solution to the alginate fiber spinning solution; stirring; spinning to obtain rectorite modified alginate fibers; mixing with silk fibers to obtain warp yarns; preparing weft yarns through silk fibers and silk coated alginate fibers; then preparing the silk fabric; transferring the silk fabric into a mixed solution of a carbon nanotube, ethyl alcohol and a silane coupling agent; soaking; and sequentially drying and roasting to obtain the functionalized silk fabric. The method is simple to operate, and low in preparation cost; the prepared silk fabric is soft and comfortable, and high in antibacterial performance and mechanical performance.

The invention discloses an efficient impervious leakage-blocking waterproof material. The material is prepared from the following raw materials in parts by weight: 40-50 parts of an elastic acrylic emulsion, 0.5-1.5 parts of a chemical root resistant, 15-25 parts of calcined kaolin powder, 6-12 parts of calcined vermiculite powder, 1-3 parts of a hydroxide solution, 1-4 parts of an nano additive, 2-5 parts of a thickening agent, 8-14 parts of reinforced fibers and 18-24 parts of water. The waterproof material disclosed by the invention has excellent cold resistance, heat resistance, aging resistance and water tolerance, is not deformed to flow at a high temperature, is not fractured at a low temperature and can resist high-frequency repeated impact of rainstorm, and slight deformation can be automatically restored; and meanwhile, the raw material components are safe, reliable and have no environmental pollution, the raw materials are easily available and relatively low in cost, a process is simple and clear, and the waterproof material has relatively high practical values and good application prospects.

The invention discloses 70-DEG C protective-layer soft polyvinyl chloride plastic. The plastic is prepared from, by weight, 45-50 parts of polyvinyl chloride, 22-25 parts of polystyrene, 15-18 parts of butadiene-acrylonitrile rubber, 6-9 parts of acrylic rubber, 3.2-3.6 parts of toluene diisocynate, 2.2-2.5 parts of stearic acid, 14-17 parts of super-dispersive graphene-reinforced filler, 1.4-1.7 parts of accelerant CZ, 2-2.3 parts of accelerant TMTD, 1.3-1.6 parts of coumarone, 0.8-1.2 parts of antioxidant TNP and 1.2-1.5 parts of antioxidant DLTP.

The invention discloses folic acid modified gold nanoparticle, a preparation method thereof, and applications of the folic acid modified gold nanoparticle in preparation of radiosensitization therapymedicines. The preparation method comprises following steps: 1, the surfaces of nanoparticles are modified with an ultraviolet light sensitive cross-linking agent and folic acid; 2, ultraviolet lighttriggered gold nanoparticle crosslinking is carried out; and 3, ultraviolet light triggered nanoparticle application and radiosensitization are carried out. According to the preparation method, the crosslinking agent of a relatively small size is adopted, and nanoparticle precipitation is avoided; modification of tumor targeting functional molecules is carried out, so that the enrichment amount ofnanometer materials at tumor parts is increased effectively; ultraviolet light irradiation is adopted to realize controllable crosslinking of nanoparticle, and prolonging the detention time of nanometer materials at tumor parts greatly. The light triggered gold nanoparticle crosslinked product obtained using the preparation method is capable of enhancing tumor CT imaging and tumor radiosensitization therapy effect greatly, is suitable to be developed into an anti-tumor medicine based on radiosensitization therapy, and possesses high scientific research and economical value.

The present invention discloses an environmental protection flame-retardant decoration sound-absorbing material, which comprises the following raw materials by weight: 30-40 parts of an adhesive, 15-25 parts of sound absorbing fiber, 10-20 parts of broken glass powder, 8-14 parts of fly ash, 5-10 parts of a metal oxide, 7-9 parts of modified calcium carbonate powder, 8-12 parts of a flame retardant additive, 25-35 parts of mineral filler, and 2-6 parts of a bactericidal additive. The environmental protection flame-retardant decoration sound-absorbing material of the invention has functions of good sound absorption, good sound insulation, excellent uniformity, excellent gas permeability, excellent tensile strength, excellent resilience rate, excellent thermal insulation and excellent sterilization function, is the widely promoted decoration sound-absorbing material, can be used as the sound-absorbing barrier in high-speed highway, railway, airport, rooms and urban overhead roads, can further be used as public building sound-absorbing decoration materials, and further has advantages of safe and reliable raw material components, no environment pollution, low cost, simple process, high practical value and good application prospects.

The invention relates to an inorganic pollution resistance antibacterial reverse osmosis membrane and a preparation method thereof. According to the invention, by the curing of a hydroxy polymer and the cross-linking of nano sterilization particles, a cross-linked dense mesh coating is formed on the surface of a basic reverse osmosis membrane comprising a non-woven fabric layer, a polymer supporting layer and a polyamide functional layer through high temperature treatment; and meanwhile, due to the reaction of hydroxyl groups and membrane surface groups, the strength of an anti-pollution layer is greatly reinforced, the inorganic resistance capacity of the reverse osmosis membrane is improved and the service life of the reverse osmosis membrane is effectively prolonged. The sterilization particles are uniformly distributed on the membrane surface and are cross-linked in the coating, so that not only is the antibacterial activity improved, but also the antibacterial timeliness is prolonged. The preparation method of the reverse osmosis membrane, which is disclosed by the invention, is simple and convenient, is easy to operate, has no specific requirement on equipment and has the characteristic of high salt rejection.

The invention discloses a flame-retardant and mildew-proof heat preservation material for refrigeration equipment, which comprises the following raw materials in parts by weight: 14-18 parts of alkali-free glass fiber, 10-14 parts of hollow glass micropowder, 120-160 parts of polytetrahydrofuran glycol, polytetrahydrofuran glycol 120-160 parts, 30-40 parts of ester polyol, 3-5 parts of foaming agent, 15-25 parts of flame retardant additive, 2-4 parts of foam stabilizer, 1-3 parts of catalyst, 4-6 parts of anti-mold and fungicide, mineral filling 13‑17 parts, 5‑7 parts of coupling agent. The thermal insulation material of the present invention has low thermal conductivity, excellent thermal insulation performance, good mechanical strength, excellent uniformity, air permeability, elastic recovery rate, and in addition, the material has strong flame retardancy and bactericidal and anti-mildew effects At the same time, the raw material components of the present invention are safe and reliable, have no pollution to the environment, have low cost, and are simple in process, and have high practical value and good application prospects when used as insulation materials for refrigeration equipment.

The invention relates to an improved installation process for a cold shrink intermediate joint of a 10kV three-core cable. The process comprises the following steps: (1) peeling a cable outer sheath, a steel belt, an inner protection layer and filler among cable cores according to sizes; (2) peeling a copper shield and an outer semi-conducting layer of the cable according to sizes; (3) cleaning a main insulator of the cable; (4) crimping copper connecting rods, putting the copper connecting rods into the cold shrink joint and a copper shield net cover in a sleeving way respectively, crimping a copper connecting tube and leads at the two ends with a pair of hydraulic tongs, and winding a copper conductor with a semi-conducting adhesive tape till the copper conductor is flush with the main insulator; (5) brushing a polyethylene special dedicated adhesive; (6) painting two-component RTV (Room Temperature Vulcanized Silicone Rubber); (7) installing the cold shrink joint; (8) installing the copper shield net cover in a sleeving way and overlapping a flat copper woven belt; and (9) performing water-proof protection and mechanical protection. A process of painting the polyethylene special dedicated adhesive and the RTV is adopted instead of a conventional silicone grease painting process, thereby effectively smoothening a cross-linked polyethylene insulating surface layer, enhancing the insulating performances of accessories, saving raw materials and consumable items, and increasing the working efficiency.

The invention discloses a preparation method of a lignin-based carbon material rich in meso-pores or meso-pores and macro-pores. The preparation method of the lignin-based carbon material rich in meso-pores, which takes lignin as a carbon-forming raw material, calcium chloride as a meso-porous template and silicon spheres as a macro-porous template, comprises the following process steps: (1) dissolving lignin in water to prepare a lignin solution, then adding calcium chloride or calcium chloride and silicon spheres to form a mixed slurry of lignin and calcium chloride, and drying the mixed slurry to form a solid blank; (2) calcining the solid blank in a nitrogen atmosphere to obtain a carbon material containing calcium chloride or a carbon material containing calcium chloride and silicon spheres; and (3) performing cleaning to remove calcium chloride in order to obtain the lignin-based carbon material rich in meso-pores or remove the calcium chloride and silicon spheres to obtain the lignin-based carbon material rich in meso-pores and macro-pores.

The invention relates to a meal replacement powder, and belongs to the technical field of food. Nutrients in the meal replacement powder are prepared with various fruits and vegetables as the raw materials, the requirement of a human body for nutrients is met, and meanwhile the intake of high-energy food is avoided; then, by adding coarse cereals, necessary vegetable proteins and sugars are supplemented for the human body through the coarse cereals; chitin is sulfonated through chlorosulfonic acid, combined with oxidized cellulose and then mixed with 2-acetoxyisobutyryl chloride, N,N-diethyl acrylamide and the like to form a chitin-oxidized cellulose modified polymer; by modifying the polymer, the temperature variation is improved, and the antibacterial effect and anti-corrosion property are improved; by brewing the powder with hot water, the raw materials in the meal replacement powder are rapidly wrapped by the modified polymer, the nutrients in the meal replacement powder are released through the decomposition of the polymer after the meal replacement powder is eaten, the nutrients are prevented from being rapidly released, and the meal replacement effect is improved.

The invention relates to a conducting agent. Particularly, the structural formula of the conducting agent contains a substituent represented by a formula I (shown in the specification). The invention further relates to a preparation method of the conducting agent and a lithium ion battery containing the conducting agent. According to the preferred technical scheme of the invention, the molecules of the conducting agent are of a three-arm star-shaped structure and form a conjugate big pi system, and electrons can be effectively transmitted in the conjugate system. The conducting agent and a carbon-phase conducting material are matched to be applied to a lithium ion battery, isolated active material particles and carbon-phase conducting material particles can be effectively crosslinked by virtue of a star-structured molecular chain to form a space conducting network, so that the rate capability of the battery is improved.

The invention discloses a preparation method of a very high nitrile cross-linked powdered nitrile rubber, which comprises the following steps: first, using butadiene and acrylonitrile as monomers to synthesize nitrile latex through emulsion polymerization, and then making the nitrile latex Agglomerated into powder, centrifugal dehydration and drying to obtain extremely high nitrile cross-linked powdered nitrile rubber. A very high nitrile crosslinked powdered nitrile rubber prepared by this method is also disclosed. The invention has the advantages of: adopting a polymerization reaction process combining medium and high temperature; high polymerization conversion rate, no acrylonitrile and butadiene recovery device; complete monomer reaction, low cost; effectively improving product quality stability and oil resistance Better; effectively complete the cross-linking of molecular chains, and the product has better wear resistance and heat resistance.

The invention discloses a potato beverage which is prepared from at least 90 percent of potato juice serving as a main material, 5-9 percent of apple juice, 0.4-0.6 percent of cicada peel, 0.8-1.5 percent of barbary wolfberry and a proper amount of white sugar. Not only can the healthcare effect of the potato beverage be improved, but also the prepared potato beverage is clear and has good taste. Through mixing potato slurry, apple juice, cicada peel filtration fluid and barbary wolfberry and putting the mixture in a sealed container, and arranging two ultrasonic stirrers with different frequencies in the sealed container, mixing and cross-linking can be effectively performed among molecules of various substances under the effect of ultrasonics, so that the mixed solution has no impurities, the taste of the potato beverage is enhanced, and the potato beverage has good effects of dispelling wind and heat, promoting eruption and relieving sore throat; the potato beverage is regulated to have alkalescence, neutralization regulation is performed on acidity of human bodies by use of alkalescence chemical property, so that the acidic human body can keep a state quite beneficial to health.

Microbe culture solution which contains a large number of viable bacteria is formed by fermenting microorganisms of which the main floras are acetic bacteria and yeasts; the microbe culture solution is mixed with a small amount of ethanol, acetic acid, sugar source, inorganic salt and the like; the mixture is added into a rubber latex; and latex particles are further solidified through the acetic acid and bacterial cellulose which are generated from nutrient substances in the rubber latex by the microorganisms, such as the acetic bacteria, yeasts and the like in the microbe culture solution. At the same time, the microorganisms decompose a large number of nutrient substances, such as a nitrogen source and the like, in the latex in a growing process, then the total solid content in solidified waste liquid is further reduced and pollution emission is reduced; and serum left in the solidified latex can serve as a culture medium of microorganism solidification liquid or a beneficial microbial ecological agent, and then the rubber latex is comprehensively used. The method has simple operation; by the method, the cost and the pollution are reduced and the rubber yield is improved; and the product produced by the method has better physical and chemical property than the product produced by acidic solidification.

The invention discloses an antistatic fabric preparation method, which comprises: preparing a chitosan solution, preparing a chitosan cross-linked modified polyacrylate emulsion, preparing fibers by using a solution spinning method, carrying out cluster induction on the fibers, and twisting to prepare yarns; preparing master batch by using a polyamide resin, carbon nano-tubes, calcium carbonate and sodium chloride as raw materials, mixing the master batch and a polyamide resin, carrying out melt spinning, treating the prepared fibers by using an acid, drying, plying with fibroin fibers, and twisting to prepare yarns; weaving by using the prepared yarns as raw materials to prepare a fabric; and treating the fabric by using a modification liquid to prepare the antistatic fabric, wherein themodification liquid comprises modified hornblende schist powder, a polyamide resin, water, a dispersing agent, a thickener and a leveling agent. According to the present invention, the operation of the method is simple, and the prepared fabric has advantages of excellent mechanical property, good antistatic property and good gas permeation.

Disclosed is a graphene material for asphalt modification as well as a preparation method and application. The graphene material for the asphalt modification comprises partially oxidized graphene powder and a surface grafting modifier. The partially oxidized graphene powder is connected to an inorganic affinity group in the surface grafting modifier by means of an oxygen-containing functional group on the partially oxidized graphene powder. The oxygen content in the partially oxidized graphene powder is 0.05%-15%. Also disclosed is the application of the graphene material for the asphalt modification or the preparation method of the graphene material in matrix asphalt and modified asphalt.

The invention relates to a conducting agent. Particularly, the structural formula of the conducting agent contains a substituent represented by a formula I (shown in the specification). The invention further relates to a preparation method of the conducting agent and a lithium ion battery containing the conducting agent. According to the preferred technical scheme of the invention, the molecules of the conducting agent are of a three-arm star-shaped structure and form a conjugate big pi system, and electrons can be effectively transmitted in the conjugate system. The conducting agent and a carbon-phase conducting material are matched to be applied to a lithium ion battery, isolated active material particles and carbon-phase conducting material particles can be effectively crosslinked by virtue of a star-structured molecular chain to form a space conducting network, so that the rate capability of the battery is improved.