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An anti-adhesive coating, polytetrafluoroethylene technology, applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of low adhesion and hardness of metal substrates, and achieve high hardness, Good corrosion resistance, strong adhesion effect
Inactive Publication Date: 2017-09-22
深圳市睿华涂布科技有限公司
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Problems solved by technology
However, the adhesion to metal substrates is often not high, and the hardness often does not meet the requirements.
Method used
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Embodiment 1
[0032] In parts by mass: 50 parts of epoxy resin, 5 parts of polytetrafluoroethylene, 27.5 parts of polyamide, 3 parts of molybdenum disulfide, 5 parts of sodium lauryl sulfate, 28 parts of acetone, 28 parts of xylene and 28 parts parts n-butanol. The mass ratio of the polytetrafluoroethylene to the epoxy resin is 1:10.
[0033] Prepare the anti-stick coating as follows:
[0034] (a) Add polytetrafluoroethylene powder and molybdenum disulfide chelated to the mixing tank, stir evenly, and the stirring speed is 100rpm / min to obtain the mixture;
[0035] (b) Add the mixed solution of xylene and n-butanol into the mixing tank, then add the mixture of step (a) into the mixing tank while stirring, the stirring speed is 300-400rpm / min;
[0036] (c) Sodium lauryl sulfate is added in the mixing tank, continue to stir, stirring speed 300-400rpm / min, stir evenly;
[0037] (d) epoxy resin is dissolved in solvent acetone, obtains solution;
[0038] (e) adding the solution in step (d) a...
Embodiment 2
[0041] In terms of parts by mass: take 50 parts of epoxy resin, 8 parts of polytetrafluoroethylene, 25 parts of polyamide, 5 parts of molybdenum disulfide, 5 parts of sodium lauryl sulfate, 30 parts of acetone, 30 parts of xylene and 30 parts parts n-butanol.
[0042] The release coating was prepared according to the steps in Example 1.
[0043] The anti-adhesive coating prepared in this embodiment has excellent hardness and adhesion.
Embodiment 3
[0045] In terms of parts by mass: take 50 parts of epoxy resin, 5 parts of polytetrafluoroethylene, 30 parts of polyamide, 3 parts of molybdenum disulfide, 4 parts of sodium lauryl sulfate, 30 parts of acetone, 30 parts of xylene and 30 parts parts n-butanol. The mass ratio of polytetrafluoroethylene and epoxy resin is 1:10
[0046] The release coating was prepared according to the steps in Example 1.
[0047] The anti-adhesive coating prepared in this embodiment has excellent anti-adhesive and adhesion.
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Abstract
The invention discloses an anti-adhesion coating, and belongs to the field of anti-adhesion coatings. The anti-adhesion coating comprises following components including, by mass, 45-55 parts of epoxy resin, 4-15 parts of Teflon, 20-30 parts of a curing agent, 2-10 parts of a lubricating agent, 3-5 parts of a surface active agent and 80-95 parts of an organic solvent. The mass ratio of the Teflon to the epoxy resin is 1:10, the Teflon is 800-mesh powder, the curing agent is polyamide, the lubricating agent is molybdenum disulfide, and the granularity of the molybdenum disulfide is 800 meshes. Compared with the prior art, the anti-adhesion coating has the beneficial effects that due to the fact that the anti-adhesion coating contains the Teflon, the surface tension of the teflon is very low, the surface tension of the coating prepared through the Teflon is very low as well, the anti-adhesion performance is good, and the anti-adhesion coating can be repeatedly used many times; the epoxy resin has excellent adhesion force for metal, meanwhile, extremely good corrosion resisting performance and high mechanical strength are achieved, the anti-adhesion coating has high adhesion force for a metal base material, and meanwhile high hardness is achieved.
Description
technical field [0001] The invention relates to the field of anti-adhesive coatings. Background technique [0002] Anti-adhesive coatings are used to coat various films to make a release film with a detachable surface, which does not have stickiness or has slight stickiness after contacting with specific materials under limited conditions. In order to increase the release force of the release film, the film is usually subjected to plasma treatment, fluorine coating or silicon release agent is coated on the surface of the film material. The fluorine-containing organic polymer material is a polymer material with excellent comprehensive properties, which itself has excellent anti-adhesive properties. The release film made of it can provide extremely light and stable release force, and has excellent Chemical resistance, heat resistance, electrical insulation and non-stick properties. Various anti-adhesive coatings made of fluorine-containing organic polymer materials have been...
Claims
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Application Information
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