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Organic silicon modified epoxy floor paint and preparation method and application thereof

A silicone epoxy and epoxy flooring technology, applied in the direction of epoxy resin coatings, coatings, etc., can solve the problems of not being able to effectively improve the stain resistance of coatings for a long time, unfavorable promotion and application of floor coatings, and high raw material prices. Achieve the effects of improving impact resistance, reducing production costs, and improving compatibility

Active Publication Date: 2014-07-30
GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this patent application mainly uses small-molecule organic silicon hybrids, which cannot effectively improve the stain resistance of the coating for a long time, and has little impact on the impact resistance of epoxy floor coatings, and its raw material prices are relatively high, which is not conducive to Popularization and Application of Floor Coatings
And utilize cheap, the polymethylsiloxane organosilicon compound modified floor coating of macromolecule that the flexibility of molecular segment is larger has not been reported so far.

Method used

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  • Organic silicon modified epoxy floor paint and preparation method and application thereof
  • Organic silicon modified epoxy floor paint and preparation method and application thereof
  • Organic silicon modified epoxy floor paint and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056](1) Preparation of silicone epoxy compound: 5g of γ-(2,3-glycidoxy)propyltrimethoxysilane, 100g of polydimethylsiloxane (n=1500), 0.03g of water , 50 g of toluene, catalyzed by 0.01 g of triethylamine, hydrolysis and condensation reaction at 50 ° C for 8 hours, rotary evaporation to remove toluene, to obtain organosilicon epoxy compound. In the FT-IR of the product, 910cm -1 The absorption peak of epoxy group appears on the left and right, 3400cm -1 The absorption peaks of the left and right polysiloxane terminal hydroxyl groups disappeared, indicating the formation of silicone epoxy compounds.

[0057] (2) Preparation of silicone modified epoxy floor coating: 100g of bisphenol A epoxy resin (epoxy value: 0.51mol / 100g), 20g of silicone epoxy compound prepared in step (1), 15g of epoxy Propane butyl ether, 50g montmorillonite, 2g dispersant BYK-P104, 25g polyamine 4,4-diaminodiphenylmethane, 1g leveling agent EFKA3777, 0.5g defoamer BYK066, 2g carbon black, 10g butyl A...

Embodiment 2

[0059] (1) Preparation of silicone epoxy compound: 30g of 2-(3,4-epoxycyclohexyl)ethyltriethoxysilane, 100g of polydimethylsilane (n=500), 5g of water, Under the catalyst of 0.2 g of tin dilaurate dibutylate, the hydrolysis condensation reaction is carried out at 130 DEG C for 2 hours to obtain the organosilicon epoxy compound for epoxy floor coating. In the FT-IR of the product, 910cm -1 The absorption peak of epoxy group appears on the left and right, 3400cm -1 The absorption peaks of the left and right polysiloxane terminal hydroxyl groups disappeared, indicating the formation of silicone epoxy compounds.

[0060] (2) Preparation of silicone modified epoxy floor coating: 50g bisphenol F epoxy resin (epoxy value: 0.51mol / 100g), 50g bisphenol A epoxy resin (epoxy value: 0.54mol / 100g) 100g), 30g silicone epoxy compound prepared above, 8g lauryl fatty alcohol glycidyl ether, 100g silicon dioxide, 5g dispersant BYK-P105, 30g polyetheramine (D230), 1g imidazole, 3g leveling Ag...

Embodiment 3

[0062] (1) Preparation of silicone epoxy compound: 10g of γ-(2,3-glycidoxy)propyltrimethoxysilane, 100g of polydimethylsilane (n=50), 2.5g of water, 50g of tetrahydrofuran , under the catalysis of 0.3g catalyst zinc chloride, hydrolysis and condensation reaction at 100 ° C for 3 hours, rotary evaporation to remove tetrahydrofuran, in the FT-IR of the product, 910cm -1 The absorption peak of epoxy group appears on the left and right, 3400cm -1 The absorption peaks of the left and right polysiloxane terminal hydroxyl groups disappeared, indicating the formation of silicone epoxy compounds.

[0063] (2) Preparation of silicone-modified epoxy floor coating: 100g novolac epoxy resin (epoxy value: 0.51mol / 100g), 0.1g silicone epoxy compound prepared above, 5g propylene oxide benzyl ether , 40g talcum powder, 40g kaolin, 0.5g dispersant BYK-P104, 50g polyaminoamide (G640), 0.5g 2-ethyl-4-methylimidazole, 2g leveling agent EFKA3777, 0.5g defoamer BYK066, 4g of chrome yellow and 30g ...

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Abstract

The invention discloses an organic silicon modified epoxy floor paint and a preparation method and application thereof. The organic silicon modified epoxy floor paint comprises the following components in parts by weight: 100 parts of epoxy resin, 0.1-50 parts of an organic silicon epoxy compound, 0-15 parts of an epoxy thinner, 10-200 parts of a filler, 0.01-10 parts of a dispersant, 5-50 parts of a curing agent, 0-1.5 parts of an accelerator, 0.1-5 parts of a flatting agent, 0.05-5 parts of a defoaming agent, 0.5-10 parts of a colorant and 0-80 parts of an organic solvent A. As the hydrolysable groups of the silane coupling agent react with polydimethylsiloxane macromolecules to prepare the organic silicon epoxy compound, thus during the curing process of the epoxy floor paint, long-chain polysiloxane is introduced in the crosslinked network of epoxy resin; and as the flexible chain of polysiloxane is long and polysiloxane is riveted in the crosslinked network of epoxy resin, the compatibility of polysiloxane and epoxy resin is increased and the function of increasing the shock resistance and long-term stain resistance of the floor paint are increased.

Description

technical field [0001] The invention relates to an epoxy floor paint, in particular to an organic silicon modified epoxy floor paint and its preparation method and application. Background technique [0002] Epoxy floor coating is a high-strength, wear-resistant, and beautiful floor coating. It has the advantages of seamless, solid texture, good chemical resistance, anti-corrosion, waterproof, dust-proof, convenient maintenance, and low maintenance costs. . At present, it is widely used in industrial plants, corridors, basements, sports fields, homes and other environments, but epoxy floor coatings are brittle, not resistant to impact, easy to scratch, not resistant to oil stains, etc., which greatly limit the epoxy floor coating. Promotion and application of floor coatings. It is a problem to be solved urgently to modify the epoxy floor coating to improve the toughness, impact resistance and oil resistance of the epoxy floor coating. [0003] Using organosilicon to modify...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/02C09D163/04C09D183/04C09D7/12
Inventor 刘伟区邱俊强王政芳叶冠平罗广建陈海生
Owner GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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