The rubber release agent consists of the following raw materials in parts by mass: 25-50 parts of terephthalate metal salt, 1-5 parts of stearic acid, 20-45 parts of silicone oil, and 10-25 parts of emulsifier.

The terephthalic acid metal salt is preferably calcium terephthalate, magnesium terephthalate, zinc terephthalate, potassium terephthalate, sodium terephthalate, terephthalate One or more of barium formate, aluminum terephthalate, iron terephthalate.

The silicone oil is preferably methyl silicone oil, ethyl silicone oil, phenyl silicone oil, methyl hydrogen silicone oil, methyl phenyl silicone oil, methyl chlorophenyl silicone oil, methyl ethoxy silicone oil, methyl silicone oil, One or more of ethyl trifluoropropyl silicone oil, methyl vinyl silicone oil, methyl hydroxyl silicone oil, ethyl hydrogenated silicone oil, and hydroxyl hydrogenated silicone oil.

The emulsifier is preferably sorbitol fatty acid ester, polyethylene glycol stearate, polyethylene glycol laurate, polyethylene glycol oleate, polyoxyethylene sorbitan One or more types of fatty acid esters and alkylphenol polyoxyethylene ethers.

Firstly, the powder is activated, that is, the surface of the metal terephthalate powder is changed from hydrophilic to lipophilic after being treated with the activator stearic acid.

The specific method is to add the metal terephthalic acid salt and stearic acid *** at the same time into the stirring tank (2000 rpm), stir for 5-LOmin, and activate for 15-20min. Then add silicone oil and emulsifier, stir for 15-30 minutes, until it becomes a uniform and stable emulsion, take it out, put it into a plastic bucket and seal it for storage.