3results about How to "High viscoelasticity" patented technology

This invention discloses a surfactant composition, its preparation method, and its applications. The surfactant composition comprises a nonionic surfactant, an amphoteric surfactant, and optionally an anionic nonionic surfactant; wherein the nonionic surfactant is selected from at least one nonionic compound containing a hydrophobic hydrocarbon chain and two or more hydroxyl groups. The surfactant composition of this invention forms a bicontinuous phase structure through self-assembly, which is interconnected in all directions, thereby providing excellent mass transport properties and achieving rapid wetting. The use of a mixture of a polyhydroxy nonionic surfactant and an amphoteric surfactant enhances hydrogen bonding with water and the anions in the amphoteric surfactant, while the hydrophobic hydrocarbon chain enhances van der Waals forces, increasing the viscoelasticity of the coating under wetting conditions and thus enhancing its resistance to prolonged water misting.

This application belongs to the field of lithium battery technology, and particularly relates to a lithium battery ceramic separator adhesive, its preparation method, and a lithium battery. The lithium battery ceramic coated separator adhesive includes a core layer and a shell layer. The shell layer is a copolymer of alkyl acrylate and acrylate polyacrylate with a mass ratio of 1:1 to 3. The glass transition temperature is about -10℃ to -30℃. It is in a glassy state at room temperature and has good viscoelasticity. It can effectively bond the positive and negative electrode sheets and the battery ceramic separator at room temperature after conventional pressing. The positive and negative electrode sheets and the battery ceramic separator are difficult to peel off or move. This solves the technical problem in the prior art that the bonding effect of lithium battery ceramic separator adhesive at room temperature is poor and the electrode sheets and separator are prone to displacement.

This invention provides a high-hygroscopic, water-free composite gel-type calcium and magnesium salt tablet and its preparation method, which is made from the following raw materials in parts by weight: 45-70 parts calcium and magnesium salt, 15-25 parts gum arabic, 3-15 parts mica powder, 2-12 parts polyethylene oxide, 0.5-2 parts sodium nitrite, and 2-30 parts gelatin. This tablet exhibits high hygroscopicity and excellent physical properties.