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A technology of release agent and film, applied in the direction of coating, can solve the problems affecting the use effect, the influence of processing technology, the deposition of effective components, etc., and achieve the effect of good wetting and isolation, preventing dust and glue, and good isolation effect.
Inactive Publication Date: 2018-12-07
QINGDAO FIHONOR CHEM SCI & TECH
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Problems solved by technology
Commercially available film release agents mainly have the following problems: one is that the release agent is easily precipitated after dissolution, causing the effective components to deposit at the bottom of the liquid, and the proper isolation effect cannot be achieved; Agglomeration will affect the subsequent processing technology; the third is that most of the release agents are added with low molecular weight surfactants, which will generate a lot of foam during the stirring process, which will greatly interfere with the release agent painting process, causing the release agent to smear Uneven, affect the use effect
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Embodiment 1
[0021] A film release agent, in terms of mass percentage, comprising the following components: 10-30 parts of fatty acid salt, 5-10 parts of inorganic thickener, 1-5 parts of organic thickener, and 50-75 parts of inorganic filler , wherein the fatty acid salt is one or both of fatty acid calcium, fatty acid zinc, fatty acid magnesium, fatty acid potassium, and fatty acid sodium; the inorganic thickener is organic bentonite, fumed silica, diatomaceous earth, silicon One or both of lithium magnesium acid; the organic thickener is sodium carboxymethyl cellulose, hydroxymethyl cellulose, guar gum, chitosan, polyacrylamide, sodium polyacrylate, polyethylene One, two or more of alcohol; the inorganic filler is one, two or more of talcum powder, double fly powder, pottery clay, kaolin, mica powder, and white bag soil.
Embodiment 2
[0023] A kind of preparation of film release agent:
[0024] 30 parts of fatty acid zinc, 5 parts of organic bentonite, 1.5 parts of sodium carboxymethylcellulose, 1 part of polyvinyl alcohol, and 62.5 parts of inorganic fillers are weighed according to the material ratio, added to a powder mixer, stirred evenly, and weighed for packaging.
Embodiment 3
[0026] A kind of preparation of film release agent:
[0027] 25 parts of fatty acid magnesium, 8 parts of organic bentonite, 1.5 parts of guar gum, and 45.5 parts of inorganic filler are weighed according to the material ratio, added to a powder mixer, stirred evenly, weighed and packaged.
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Abstract
The invention discloses a rubber film separant and belongs to the technical field of rubber processing. The rubber film separant comprises the following ingredients (by weight): 10-30 parts of fatty acid salt, 5-10 parts of an inorganic thickening agent, 1-5 parts of an organic thickening agent, and 50-70 parts of an inorganic filler. by combining the organic and inorganic thickening agents and through reasonable compatibility of the ingredients, the rubber film separant can prevent adhesion of unvulcanized and mixed rubber films during storage, has good wetting isolation property for rubber films with different softness and viscosity, can be greatly dissolved in rubber when vulcanized and will not influence fluidity and other properties, will not generate lots of bubbles when dispersed inwater and will not influence coating of the separant on the surface of rubber films.
Description
technical field [0001] The invention relates to the technical field of rubber processing, in particular to a film release agent. Background technique [0002] In the process of rubber mastication, mixing, calendering and extrusion, due to the self-adhesive nature of the rubber compound, the films will stick to each other and cause difficulties in processing and transportation. Apply a layer of release agent to prevent unvulcanized and mixed rubber sheets from sticking to each other. Commercially available film release agents mainly have the following problems: one is that the release agent is easily precipitated after dissolution, causing the effective components to deposit at the bottom of the liquid, and the proper isolation effect cannot be achieved; Agglomeration will affect the subsequent processing technology; the third is that most of the release agents are added with low molecular weight surfactants, which will generate a lot of foam during the stirring process, whi...
Claims
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Application Information
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