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

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.

The invention discloses a poison-proof knitted fabric and a production method thereof. The production method of anti-virus knitted fabric includes the step of weaving carbon-doped yarn and covered silk into a knitted grey fabric; wherein, the carbon-doped yarn and covered silk are woven in a quantity ratio of 1-2:1; organizational structure It is a plain stitch structure, a changed plain stitch structure or a rib structure; the covered yarn is a wrap made by using spandex filament as the core yarn and covering the spandex filament with other chemical fiber filaments except spandex. Core yarn; the carbon-doped yarn is a single yarn prepared from acrylic vinyl chloride fiber and optional other fibers. The invention can form the anti-virus knitted fabric with better anti-virus performance, better air-permeability and higher value of bursting strength by forming the carbon-doped yarn with lower strength.

The invention relates to a thermal insulation and soundproof glass microfiber cotton for aviation and a preparation method thereof. The glass microfiber cotton includes ultrafine glass fiber cotton, a modified single-component water-based resin, a coupling agent and a water-based color paste. The fine glass fiber cotton is composed of glass microfibers with three kinds of rapping degrees SR°49±1, SR°34±1 and SR°24±1, and the modified single-component water-based resin includes Class A and Class B, wherein, Class A is modified water-based phenolic resin, and Class B is modified water-based polyurethane resin. The mixed solution B obtained by uniformly mixing Class B modified one-component water-based resin and coupling agent, and Class A modified one-component water-based resin The mixed solution A evenly mixed with the water-based color paste, the mixed solution B and the mixed solution A are coated on the surface of the glass microfiber in two steps and formed into a glass microfiber cotton, which has good softness, strong hydrophobicity, and mechanical properties. High-strength, heat-insulating and sound-insulating glass microfiber wool for aviation use.

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.

The invention discloses a degradable antiviral material and its preparation method and its application on a mask, comprising the following steps: S1, stirring and dissolving polyol surfactant, absorbable polymer and benign solvent in proportion to obtain A solution ; S2, adding nano-titanium dioxide to the A solution, and obtaining a suspension after stirring; S3, heating the suspension to remove the solvent, and after a certain period of heat preservation reaction, a degradable composite material is obtained; S4, combining the degradable composite material with the inhibitor The bacterial agent is ground into ultrafine powder; S5, adding the ultrafine powder into a solvent to form a composite colloid solution; S6, pouring the composite colloid solution into a mold, and forming it to obtain it. The invention uses the degradable polymer material as the matrix, utilizes its own degradability and the self-catalytic degradation performance of nano-titanium dioxide, and avoids the problem of secondary pollution caused by the refractory degradation of conventional protective mask materials.

The invention discloses a flame-retardant anti-virus anti-chemical fabric and a manufacturing method thereof. The fabric includes an outer layer, a middle layer and an inner layer from the outside to the inside, and the layers are connected in sequence; the outer layer is made of flame-retardant polyolefin film; the inner layer is made of ePTFE film, flame-retardant TPU film, flame-retardant Any one of TPEE film, flame retardant PVC film, flame retardant polyolefin film, flame retardant PU coating, flame retardant PVC coating, PVDC coating or PVDF coating; the middle layer is made of flame retardant fiber fabric and polyester Composed of halogenated olefin film; the fabric has excellent anti-hazardous chemical permeability, good anti-toxicity and flame retardancy, and is light and thin. The overall thickness of the fabric is 1.0‑2.5mm, and the weight is less than 550g / m 2 , Anti-mustard gas penetration time ≥ 72h, anti-chemical penetration time ≥ 8h, after-burning ≤ 10s, smoldering ≤ 10s, damage length ≤ 100mm. The process of the method is simple and easy.

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.