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34results about How to "Good antivirus performance" patented technology

Duck feed with pine needle powder and dry tenebrio molitor powder additive

The invention relates to a duck feed with a pine needle powder and dry tenebrio molitor powder additive. The duck feed is prepared by mixing the pine needle powder and dry tenebrio molitor powder additive and a duck feed in proportion, wherein 8-18 parts of pine needle powder and dry tenebrio molitor powder additive are added into 100 parts of duck feed. The pine needle powder and dry tenebrio molitor powder additive is prepared from the following raw materials in parts by weight: 40-48 parts of pine needle powder, 14-23 parts of dry tenebrio molitor powder, 15-22 parts of yeast powder, 13-19 parts of feed-grade calcium hydrogen phosphate and 2-4 parts of dry garlic powder. The pine needle powder and dry tenebrio molitor powder additive is prepared through the following steps of: weighting all the raw materials of the pine needle powder and dry tenebrio molitor powder additive in proportion, feeding the raw materials into a stirrer, and stirring and mixing fully. The pine needle powder is prepared from the masson pine leaves picked in the twelfth month of the lunar year by cleaning, removing impurities, drying and grinding. The duck feed provided by the invention contains enough proteins, amino acids and trace elements needed by a rabbit, is high in rate of return and low in preparation cost and can be fed to the duck to promote the growth and development of the duck and increase the laying rate. In addition, the duck feed can be fed to the duck so as to improve the disease preventing and resisting capacity of the duck.
Owner:蒋桃林

Multilayer composite adhesive tape preventing chemicals from penetrating and preparation method thereof

The invention discloses a multilayer composite adhesive tape preventing chemicals from penetrating and a preparation method thereof. The multilayer composite adhesive tape is prepared by coating aramid fiber base cloth with multiple rubber, concretely, one surface of the base cloth is coated with a fluorubber layer, and the other surface of the base cloth and the surface of the fluorubber layer are both coated with a chloroprene rubber layer. The preparation technology of the multilayer composite adhesive tape comprises preparing base cloth, coating one surface of the base cloth with the fluorubber layer, performing semi-sulfuration, coating the two surfaces of the coated base cloth with the chloroprene rubber layer, performing complete sulfuration, and obtaining the finished product adhesive tape. The multilayer composite adhesive tape employs aramid fiber fabric resistant to both acids and alkalis, possesses strong physical mechanical performances and is better than a nylon material. The multilayer composite adhesive tape has relatively strong acid and alkali resistance and chemical toxic agent resistance, and has the protection time up to 4 h. The multilayer composite adhesive tape has relatively good flame retardation performance, and can work at a high temperature. The multilayer composite adhesive tape employs chloroprene rubber and fluorubber as coating materials, is low in cost and superior in antitoxin performance.
Owner:SHANXI XINHUA CHEM

Virus-killing waterproof breathable film and preparation method thereof

The invention relates to a virus-killing waterproof breathable film and a preparation method thereof. The virus-killing waterproof breathable film comprises the following components in parts by weight: 70-85 parts of a polytetrafluoroethylene master batch, 2-9 parts of a nano filler, 4-7 parts of a plasticizer, 15-22 parts of modifier, 0.5-1.5 parts of a heat stabilizer, 10-12 parts of a coalescing agent, 1-2 parts of a pore-forming agent and 5-14 parts of nano silver-copper alloy particles. The particle size of the nano-silver copper alloy particles ranges from 15 nm to 50 nm, and copper metal atoms on the outer surfaces of the nano-silver copper alloy particles form copper oxide. According to the waterproof breathable film, specific nano-silver copper alloy powder particles are added into a tetrafluoroethylene base material to serve as a sterilizing and virus killing agent; compared with the existing natural antibacterial agent, organic antibacterial agent and inorganic antibacterialagent, the antibacterial effect is better; and according to the invention, super bacteria and viruses can be resisted and killed, and the killing effect on escherichia coli and staphylococcus aureusrepresenting conventional strains, methicillin-resistant staphylococcus aureus representing super bacteria and currently known coronaviruses reaches 90% or above.
Owner:SHENZHEN JIAN NANOCOMPOSITES CO LTD

Flame-retardant, antitoxic and anti-chemical fabric and manufacturing method thereof

The invention discloses a flame-retardant, antitoxic and anti-chemical fabric and a manufacturing method thereof. The fabric sequentially comprises an outer layer, a middle layer and an inner layer from the outside to the inside, and the layers are sequentially connected; the outer layer adopts a flame-retardant polyolefin film; the inner layer adopts any one of an ePTFE film, a flame-retardant TPU film, a flame-retardant TPEE film, a flame-retardant PVC film, a flame-retardant polyolefin film, a flame-retardant PU coating, a flame-retardant PVC coating, a PVDC coating and a PVDF coating; andthe middle layer is composed of a flame-retardant fiber fabric and a polyhaloolefin film. The fabric has the advantages of excellent hazardous chemical substance penetration resistance, good anti-toxicity, good flame retardancy and light weight. The overall thickness of the fabric is 1.0-2.5 mm, the gram weight is less than 550 g / m<2>, the fabric can resist mustard gas penetration for 72 h or more, can resist chemical substance penetration for 8 h or more, and has an afterflame time of 10 s or less, a smoldering time of 10 s or less and a damaged length of 100 mm or less. The method is simple,and is easy to implement.
Owner:北京邦维高科新材料科技股份有限公司

High-temperature-resisting structural adhesive film capable of being stored for long time at room temperature and preparation method thereof

ActiveCN105694756AIncrease interfacial bonding and bond strengthResin Toughened Microcrack Growth AbilityNon-macromolecular adhesive additivesFilm/foil adhesivesChemistryHot press
The invention provides a high-temperature-resisting structural adhesive film capable of being stored for a long time at the room temperature and a preparation method thereof and relates to a structural adhesive film and a method for preparing the adhesive film. The structural adhesive film and the method for preparing the adhesive film aim to solve the problems that an existing structural adhesive film is short in room temperature storage life, and combusted smoke is high in toxin. The adhesive film is composed of polybenzoxazine resin, a toughening agent, modifier, a heat conduction material, a coupling agent, inorganic filler and a carrier. The preparation method includes the steps that firstly, process modifier and toughening modifier are subjected to prepolymerization in a reaction kettle, then the polybenzoxazine resin is added and stirred to be uniform, and modified polybenzoxazine resin is obtained; then, the modified polybenzoxazine resin is subjected to vacuum kneading with the silane coupling agent, the heat conduction material and the inorganic filler through a kneading machine, and an adhesive material is obtained; finally, the adhesive material is subjected to hot pressing with the carrier on an adhesive film calender to be made into the film, and the high-temperature-resisting structural adhesive film can be obtained. The high-temperature-resisting structural adhesive film has the advantages of being flame retardant, low in smoke, low in toxin, capable of achieving complete curing at the temperature of 185 DEG C, high in adhesion strength and good in high temperature resistance; the adhesive film is stored for 180 days at the room temperature, and process performance and adhesion performance maintain unchanged.
Owner:INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI

Degradable antiviral material, and preparation method and application of degradable antiviral material in masks

The invention discloses a degradable antiviral material, and a preparation method and application of the degradable antiviral material to masks, wherein the preparation method comprises the followingsteps: S1, stirring and dissolving a polyol surfactant, absorbable macromolecules and a benign solvent in proportion to obtain a solution A; S2, adding nano titanium dioxide into the solution A, and stirring to obtain turbid liquid; S3, heating the turbid liquid to remove the solvent, and carrying out heat preservation reaction for a certain time to obtain a degradable composite material; S4, grinding the degradable composite material and a bacteriostatic agent into ultrafine powder; S5, adding the ultrafine powder into the solvent to form a composite colloidal solution; and S6, pouring the composite colloidal solution into a mold, and carrying out shaping treatment. According to the invention, the degradable high polymer material is used as a matrix, and the self-degradability of the degradable high polymer material and the autocatalytic degradation performance of the nano titanium dioxide are utilized, so that the problem of secondary pollution caused by degradation difficulty of a conventional protective mask material is avoided, and a feasible raw material is provided for preparing the preventive mask for preventing various coronaviruses.
Owner:CHENGDU MEDART MEDICAL SCI CO LTD

A kind of anti-chemical penetration multi-layer composite adhesive tape and preparation method thereof

The invention discloses a multilayer composite adhesive tape preventing chemicals from penetrating and a preparation method thereof. The multilayer composite adhesive tape is prepared by coating aramid fiber base cloth with multiple rubber, concretely, one surface of the base cloth is coated with a fluorubber layer, and the other surface of the base cloth and the surface of the fluorubber layer are both coated with a chloroprene rubber layer. The preparation technology of the multilayer composite adhesive tape comprises preparing base cloth, coating one surface of the base cloth with the fluorubber layer, performing semi-sulfuration, coating the two surfaces of the coated base cloth with the chloroprene rubber layer, performing complete sulfuration, and obtaining the finished product adhesive tape. The multilayer composite adhesive tape employs aramid fiber fabric resistant to both acids and alkalis, possesses strong physical mechanical performances and is better than a nylon material. The multilayer composite adhesive tape has relatively strong acid and alkali resistance and chemical toxic agent resistance, and has the protection time up to 4 h. The multilayer composite adhesive tape has relatively good flame retardation performance, and can work at a high temperature. The multilayer composite adhesive tape employs chloroprene rubber and fluorubber as coating materials, is low in cost and superior in antitoxin performance.
Owner:SHANXI XINHUA CHEM

Corpus antiseptic and its preparation method

The invention discloses a corpse conserving agent and a preparation method thereof. The corpse conserving agent comprises the following raw materials with the following volume content: 150 to 400 parts of formaldehyde, 60 to 200 parts of benzoic acid-ethyl alcohol solution, 20 to 100 parts of sodium acetate solution, 10 to 120 parts of acetone, 3 to 80 parts of glacial acetic acid and 0.5 to 1.5 parts of perfume. The benzoic acid-ethyl alcohol solution is formed by benzoic acid dissolved in 95 percent ethyl alcohol, and the sodium acetate solution is formed by sodium acetate dissolved in distilled water. The preparation method comprises the following steps: (1) taking the benzoic acid to dissolve in the 95 percent ethyl alcohol so as to form the benzoic acid-ethyl alcohol solution and then shaking evenly; (2) taking the sodium acetate solution to dissolve in the distilled water so as to form the sodium acetate solution and then mixing uniformly; and (3) mixing and shaking the formaldehyde, the acetone, the benzoic acid-ethyl alcohol solution, the sodium acetate solution and the glacial acetic acid, and finally dropping the perfume. By using the corpse conserving agent of the invention, only individual positions of the corpse are required to be injected, without corpse immersion, therefore, the purposes of short-term corpse corrosion protection and preservation can be achieved,the toxic action of formaldehyde can be reduced, and the corpse conserving agent has the advantages of mold prevention, security and corrosion protection, stable performance and no pollution to the surrounding environment.
Owner:陈庆明

A high temperature resistant structural adhesive film that can be stored for a long time at room temperature and preparation method thereof

The invention provides a high-temperature-resisting structural adhesive film capable of being stored for a long time at the room temperature and a preparation method thereof and relates to a structural adhesive film and a method for preparing the adhesive film. The structural adhesive film and the method for preparing the adhesive film aim to solve the problems that an existing structural adhesive film is short in room temperature storage life, and combusted smoke is high in toxin. The adhesive film is composed of polybenzoxazine resin, a toughening agent, modifier, a heat conduction material, a coupling agent, inorganic filler and a carrier. The preparation method includes the steps that firstly, process modifier and toughening modifier are subjected to prepolymerization in a reaction kettle, then the polybenzoxazine resin is added and stirred to be uniform, and modified polybenzoxazine resin is obtained; then, the modified polybenzoxazine resin is subjected to vacuum kneading with the silane coupling agent, the heat conduction material and the inorganic filler through a kneading machine, and an adhesive material is obtained; finally, the adhesive material is subjected to hot pressing with the carrier on an adhesive film calender to be made into the film, and the high-temperature-resisting structural adhesive film can be obtained. The high-temperature-resisting structural adhesive film has the advantages of being flame retardant, low in smoke, low in toxin, capable of achieving complete curing at the temperature of 185 DEG C, high in adhesion strength and good in high temperature resistance; the adhesive film is stored for 180 days at the room temperature, and process performance and adhesion performance maintain unchanged.
Owner:INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI

Brominated butyl/chlorinated butyl rubber composition and preparation method thereof

The invention relates to a brominated butyl / chlorinated butyl rubber composition for gas masks. The composition comprises the following components in parts by weight: 100 parts of rubber matrix, 50-60 parts of carbon black N220, 5 parts of zinc oxide, 0.1-0.5 part of sulfur, 1 part of stearic acid, 1-4 parts of plasticizer (paraffin oil: DOP (dioctyl phthalate): DBP (dibutyl phthalate) is 2: 1: 1), 2 parts of promoter, 1 part of anti-aging agent and 0.5 part of anti-scorching agent, wherein the rubber matrix is composed of brominated butyl rubber and chlorinated butyl rubber. As for vulcanized rubber prepared by using the brominated butyl / chlorinated butyl rubber composition, the tensile strength is 18.50MPa, the elongation at fracture is 539%, the 300% stretching strength is 9.30MPa, the tearing strength is 39.45kN.m<-1>, the Shore hardness is 54, the tension set is 10%, and the brittleness temperature is -50 DEG C; and after the vulcanized rubber is aged in hot air (70 DEG C * 72h), the tensile strength is 17.91MPa, the elongation at fracture is 569%, the aging coefficient achieves 100%, the sustainable time of resisting mustard gas of the vulcanized rubber is greater than 3600min, and the comprehensive performances of the vulcanized rubber can completely meet the performance requirements of cover body materials of the gas masks.
Owner:NANJING UNIV OF SCI & TECH
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