4results about How to "Reduce air permeability" patented technology

The present application relates to volatile gas treatment technical field, disclose a kind of organic liquid volatilization inhibitor and the method for inhibiting organic liquid volatilization.The organic liquid volatilization inhibitor contains hollow microsphere, surfactant, stabilizer, dispersant, coupling agent and solvent, for inhibiting organic liquid volatilization;Wherein, the density of the organic liquid volatilization inhibitor < the density of the organic liquid.The density of the organic liquid volatilization inhibitor provided by the present application is less than volatile liquid, with certain fluidity and stability, can realize the automatic covering and complete sealing to volatile organic liquid surface, effectively prevent organic liquid volatilization during storage, loading and transportation.

The utility model discloses a kind of barrier composite materials for food, including PET film layer and transparent PE film layer;The PET film layer with the transparent PE film layer between adhesive film layer composite connection is connected.The barrier composite material for food provided by the utility model is formed by PET film layer and transparent PE film layer composite, its permeability has been effectively reduced relative to single PE material layer, after packaging food, it can improve the shelf life effect of food, and then extend the shelf life of food.

The application provides a coating slurry, a diaphragm, a preparation method of the diaphragm and a battery. The diaphragm comprises a base material and a coating layer arranged on at least one surface of the base material, wherein the coating layer comprises non-fluorine polymer microspheres and a non-fluorine binder; the mass ratio of the non-fluorine polymer microspheres to the non-fluorine binder is (1-18):1; the melting point of the non-fluorine polymer microspheres is denoted as T, the glass transition temperature of the non-fluorine binder is denoted as Tg, and the T and the Tg satisfy the following relationship: 30≤|T+Tg|≤190. In the application, the diaphragm can be cold-pressed with positive and negative electrode sheets at low temperature, the adhesion between the diaphragm and the positive and negative electrode sheets is high, the diaphragm has excellent interface bonding performance, and the diaphragm has good air permeability, thermal stability and anti-liquid wrinkle performance.

This invention discloses a composite fabric, characterized in that the composite fabric comprises a top layer, a middle layer, and a bottom layer sequentially laminated from top to bottom. The middle layer is a waterproof and breathable membrane. The top layer and the middle layer are bonded together by a first adhesive layer, and the middle layer and the bottom layer are bonded together by a second adhesive layer. Both the first and second adhesive layers are hot melt adhesive dot arrays, and the adhesive dots of the first and second adhesive layers at least partially overlap. Using this technical solution helps to improve the softness of the fabric while ensuring a certain level of breathability.