Water-based semi-permanent type organic fluorine mold release agent

Abstract

The invention relates to a water-based semi-permanent type organic fluorine mold release agent. The water-based semi-permanent type organic fluorine mold release agent is characterized by being prepared from, by weight, 3 parts of perfluornonenoxy sodium benzene sulfonate, 4 parts of 2, 2, 3, 3, 4,4,5,5-octafluoro-1,6-hexanediol, 28 parts of water-based fluororesin emulsion, 6 parts of calcium stearate, 4 parts of glyceryl tripalmitate, 3 parts of polyethylene glycol (with the number-average molecular weight being 6000) and 54 parts of deionized water. Compared with an organic silicon mold release agent, the mold release agent is higher in mold release efficiency, lower in surface tension and wide in application prospect.

Description

technical field [0001] The invention belongs to the technical field of release agents, in particular to a water-based semi-permanent organic fluorine release agent. Background technique [0002] The release agent is a functional substance between the mold and the finished product, which can prevent rubber, plastic and other elastomers and other materials from adhering to the surface of the mold, and is a type of processing aid that assists demoulding. Dosage. [0003] At present, oil-based products are mostly used in the market. A large amount of solvents will volatilize during use, which will cause certain harm to the environment and humans. Water-based products are close to zero VOC emissions, which can greatly reduce the damage to the environment and humans. On the other hand, oil-based products Because the product contains a large amount of solvent, there are great safety hazards in the process of production, transportation and storage. Therefore, safe and environmental...

AI Technical Summary

Problems solved by technology

[0003] At present, oil-based products are mostly used in the market. A large amount of solvents will volatilize during use, which will cause certain harm to the environment and humans. Water-based products are close to zero VOC emissions, which can greatly reduce the damage to the environment and humans. On the other hand, oil-based products Because the product contains a large amount of solvents, there are great safety hazards in the process of production, transportation and storage. Therefore, safe and environmentally friendly water-based release agents will become mainstream products in the future

[0004] Most of the water-based release agents currently developed in the market are conventional release agents. The coating formed by the release agent on the mold has poor wear resistance and poor adhesion to the mold. It can only be used once for one coating. As described in the patent No. CN200910048867.3, a water-based release agent is prepared by mixing emulsified wax liquid, methyl silicone oil emulsion, modified silicone oil emulsion, etc. in a certain proportion, and adding corresponding additives. The components combined by reaction can only be coated once and used once. It is a sacrificial release agent. In the patent number CN201610961071.7, long-chain alkyl siloxane emulsion, dimethyl siloxane emulsion and polyethylene wax emulsion are used. The prepared water-based release agent also belongs to this type of sacrificial release agent, so it is an urgent problem to develop a semi-permanent release agent that can be used multiple times in one coating.