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Multifunctional 100% solid content amino silicone crosslinked epoxy coating

A multi-functional, amino-silicon technology, applied in epoxy resin coatings, anti-corrosion coatings, coatings, etc., can solve the problems of paint film stress drop, incomplete silane curing, and environmental pollution by alcohol by-products

Inactive Publication Date: 2015-12-23
天津米一科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past 10 years, the high weather resistance of polysiloxane resin system has provided a film-forming basis for exterior decorative coatings, but the traditional polysiloxane depends on the humidity of the air when it is cured and hydrolyzed, and depends on the temperature when it is polycondensed. Full curing depends on Depending on the conditions of use, silane will be incompletely cured, resulting in a decrease in the stress of the paint film, leading to catalysis of the paint film, and the intermediate with siloxane groups will release toxic alcohol by-products to pollute the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1. Preparation of a 100% solid-containing amino silicon cross-linked epoxy multifunctional coating.

[0012] The coating includes composite pulp and curing agent, and its raw material formula is as follows: composite pulp includes 17% of amino silicone resin, 15% of epoxy resin, 30% of R960 titanium dioxide, 36% of mica powder, and 0.5% of BYKA530 defoamer %, BYK220 dispersant 1% and Tego 1484 leveling agent 0.5%. Wherein the mica powder has a particle size of 15 microns, and its alumina content is at least 30%.

[0013] The preparation of the composite slurry is as follows: put the amino silicone resin into the mixing tank, add epoxy resin at a speed of 300-500 rpm, stir for 10 minutes, add the above-mentioned dispersant, defoamer, titanium dioxide and mica powder, and mix at 800 Disperse for 30 minutes at a speed of -1200 rpm, sand mill until the fineness is 50 microns, transfer to a filter, and obtain the obtained product after filtering. The curing agen...

Embodiment 2

[0014] Embodiment 2, preparing a kind of 100% solid-containing amino silicon cross-linked epoxy multifunctional coating.

[0015] The coating includes composite pulp and curing agent, and its raw material formula is as follows in terms of weight percentage: the composite pulp includes 20% of amino silicone resin, 13% of epoxy resin, 35% of R818 rutile titanium dioxide, 26% of gray mica powder, Tego 901W defoamer 0.6%, BYK220 dispersant 0.8% and Tego 440 leveling agent 0.6%. Wherein, the particle size of the mica powder is 15 microns, and the content of aluminum oxide is 30%. The preparation of this composite pulp is with embodiment 1. The curing agent adopts 100% amine-based curing agent with an amine value of 300 mgKOH / g. The 100% solid amino-containing silicon cross-linked epoxy multifunctional coating of the present invention is obtained by mixing according to the weight ratio of the composite pulp and the curing agent at 5:1 before use.

Embodiment 3

[0016] Embodiment 3, preparing a kind of 100% solid-containing amino silicon cross-linked epoxy multifunctional coating.

[0017] The coating includes composite pulp and curing agent. The composite pulp components and weight percentages are: 10% amino silicone resin, 30% epoxy resin, 30% R818 titanium dioxide, 23% gray mica powder, 100% solid oily 1% defoamer, 100% solid oily dispersant 1%; 100% solid oily leveling agent 1%; wherein, the particle size of mica powder is 10 microns, and its alumina content is 40%. The preparation of the composite pulp, the concrete substance of the curing agent and the proportioning ratio of the composite pulp are all the same as in Example 1.

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Abstract

The invention discloses a multifunctional 100% solid content amino silicone crosslinked epoxy coating. The coating is prepared from composite slurry and a curing agent. The composite slurry is prepared from, by weight, 10-30% of amino silicon resin, 10-30% of epoxy resin, 20-35% of titanium dioxide, 0.1-1% of 100% solid content oily defoaming agent, 0.1-1% of 100% solid content oily dispersing agent, 0.1-1% of 100% solid content oily leveling agent and the balance mica powder. The curing agent is an amino curing agent with the amine value of 300 mg KOH / g. The weight ratio of the composite slurry to the curing agent is 5:1. The coating has the decorating function like a common decorative coating and further has the special functions of super salt mist resistance, chemical resistance, temperature resistance and insulativity; besides, the coating can be applied on metal, concrete, wood, plastic and other base materials and applied to corrosion prevention, waterproofing, temperature resistance and other fields.

Description

technical field [0001] The invention relates to an environment-friendly multifunctional coating with functions of temperature resistance, weather resistance, abrasion resistance, insulation and anti-corrosion, which can be applied in the fields of industrial anti-corrosion, construction, home decoration, electronics and the like. Background technique [0002] Coatings protect substrates from the environment. Before the 1990s, they were usually based on organic resins (e.g., epoxy or polyurethane). Interest in polysiloxane resin systems has increased significantly in the last 10 years, and the projected annual growth Rate (US) will reach 12%. In the past 10 years, the high weather resistance of polysiloxane resin system has provided a film-forming basis for exterior decorative coatings, but the traditional polysiloxane depends on the humidity of the air when it is cured and hydrolyzed, and depends on the temperature when it is polycondensed. Full curing depends on Depending ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D183/08C09D5/08C09D5/25C09D7/12
Inventor 李友柱
Owner 天津米一科技有限公司
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