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Aqueous epoxy modified silicon resin coating and preparation method thereof

A water-based epoxy and resin coating technology, applied in coating and other directions, to achieve the effect of reducing energy consumption, easy control of reaction, and large utilization rate of equipment volume

Active Publication Date: 2018-04-06
浙江微松冷链科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only that, most of the conventional silicone resin modification methods use chlorosilane monomers as raw materials, which have many shortcomings

Method used

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  • Aqueous epoxy modified silicon resin coating and preparation method thereof
  • Aqueous epoxy modified silicon resin coating and preparation method thereof
  • Aqueous epoxy modified silicon resin coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 100g of dimethyldimethoxysilane, 400g of methyltrimethoxysilane and 100g of silane coupling agent KH-560 into a container with a stirring device in turn, start stirring, and add 100g in turn at a speed of 300r / min Distilled water and 10g acetic acid, after the reaction system is exothermic, add 150g methanol and 50g diacetone alcohol, stir and mix evenly and let it stand for 12h, then weigh 100g of the prepared base resin, and weigh 5 parts of butyl titanate and mix Evenly, the epoxy-modified silicone resin coating is prepared, and the coating is smeared on the surface of the copper sheet with a thickness of 50 μm, and the curing is completed by heating at 150 ° C for 5 to 8 minutes, and the hardness of the obtained coating is 9H.

Embodiment 2

[0023] Add 300g of methyltrimethoxysilane, 200g of dimethyldimethoxysilane and 150g of silane coupling agent KH-560 into a container with a stirring device in turn, start stirring, and add 150g of Distilled water and 12g acetic acid, after the reaction system is exothermic, add 180g methanol and 60g diacetone alcohol, stir and mix evenly and let it stand for 12h, then weigh 100g of the prepared base resin, and weigh 6 parts of butyl titanate and mix Evenly, the epoxy-modified silicone resin coating is prepared, and the coating is smeared on the surface of PVC with a thickness of 150 μm, and it can be cured after being placed at room temperature for 6-8 hours, and the hardness of the obtained coating is ≥6H.

[0024] The coatings obtained in Examples 1 and 2 were tested for performance, and the results are shown in Table 1.

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Abstract

The invention discloses an aqueous epoxy modified silicon resin coating which consists of a basic resin and a cross-linking agent in a mass ratio of 100:(4-6), wherein the basic resin comprises the following components in parts by weight: 100-400 parts of a D monomer, 100-400 parts of a T monomer, 50-150 parts of a silane coupling agent, 100-200 parts of distilled water, 8-12 parts of a catalyst and 150-250 parts of a solvent. The temperature resistance of the aqueous epoxy modified silicon resin coating disclosed by the invention is not greatly degraded, the coating is a binary state cured product, can be cured within 6-8 hours even at room temperature, can be completely cured within 5-8 minutes at 100-120 DEG C and has the characteristics of being rapidly cured at high temperatures, andcompared with a common silicon resin product, the coating has the advantages that the construction efficiency is greatly improved, and the energy consumption is reduced.

Description

technical field [0001] The invention belongs to the field of silicone resin material preparation, and in particular relates to a water-based epoxy-modified silicone resin coating and a preparation method thereof. Background technique [0002] Silicone resin is a thermosetting polysiloxane polymer with a highly cross-linked structure. It has the dual characteristics of organic resin and inorganic material. It has unique physical and chemical properties, good electrical insulation properties, temperature resistance and waterproof However, pure silicone resin is deficient in mechanical properties, adhesiveness, and solvent resistance, and its compatibility with other organic polymers is poor. Its properties need to be improved during application. [0003] Usually, there are physical blending method and chemical copolymerization method for the modification of silicone resin. The physical blending method has the problem of poor compatibility between silicone resin and other orga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/06C09D7/63C08G77/14
CPCC08G77/14C08K5/10C09D183/06
Inventor 严云张松涛何令华尹怀刚杨旭
Owner 浙江微松冷链科技有限公司
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