Insulating film for battery packaging and manufacturing method of insulating film

Abstract

The invention discloses an insulating film for battery packaging. The insulating film is composed of the following raw materials including, by weight, 0.1-0.2 part of lithium naphthenate, 10-14 parts of mica powder, 100-120 parts of polyvinyl chloride, 1-2 parts of dodecyl dimethyl betaine, 0.4-1 part of glyceryl stearate, 0.6-1 part of erucyl amide, 0.5-1 part of dialkyl hydroquine, 5-7 parts of vinylidene chloride resin, 2-3 parts of sodium tripolyphosphate, 1-2 parts of calcium lactobionate, 2-3 parts of rosinated alcohol, 0.1-0.3 part of stannous mono-sulphate, 4-5 parts of phthalic anhydride, 0.1-0.3 part of a cross-linking agent taic, 1-2 parts of phenolic resin, 0.7-1 part of polyvinylidene fluoride resin, 0.5-1.3 parts of isocyanate, 1.3-1.7 parts of melamine and 1-2 parts of dimethylacetamide. The insulating film is good in antistatic property, good in heat-resisting and water-resisting property and excellent in overall performance.

Description

technical field [0001] The invention belongs to the field of films, and in particular relates to an insulating film for battery packaging and a preparation method thereof. Background technique [0002] Polyvinyl chloride film is made of polyvinyl chloride resin and other modifiers through calendering or blow molding. Generally, the thickness is 0.08~0.2 mm, and those larger than 0.25 mm are called PVC sheets. Plasticizer, stabilizer, lubricant and other functional processing aids are added to PVC resin, and then rolled into film. Polyvinyl chloride film can be roughly divided into two categories, one is plasticized PVC film, also known as soft PVC film, and the other is unplasticized PVC film, also known as rigid PVC film. Among them, hard PVC accounts for about 2 / 3 of the market, and soft PVC accounts for 1 / 3. Soft PVC is generally used for floors, ceilings and leather surfaces, but because soft PVC contains softeners, it is easy to become brittle and difficult to store,...

AI Technical Summary

Problems solved by technology

It is also widely used in daily life, such as shoes, toys, raincoats, tablecloths, umbrellas, agricultural films, battery protection films, etc. However, traditional PVC films have poor storage stability, poor insulation, heat resistance and antistatic properties, so it is necessary to provide A battery protective film with superior insulation, heat resistance and antistatic properties