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Organic silicon modification polyester resin

A technology for modifying polyester and silicone, which is applied in polyester coatings, coatings, etc., and can solve problems such as poor color and transparency, inability to achieve water resistance and heat resistance, and unstable performance.

Inactive Publication Date: 2013-06-05
常熟市辛庄镇前进五金厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, people use silicone to modify polyester resin, so that the advantages of the two polymers are complemented, thereby improving the performance of the resin and expanding its application range, but there are still performance instability, poor color and transparency , Water resistance and heat resistance can not meet people's expectations.

Method used

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  • Organic silicon modification polyester resin
  • Organic silicon modification polyester resin
  • Organic silicon modification polyester resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Parts by weight:

[0025] 35 parts of phthalic anhydride;

[0026] 5 parts of azelaic acid;

[0027] 10 parts of trimethylolpropane;

[0028] 26 parts of polyethylene glycol;

[0029] 3 parts of N-(β-amino)-γ-aminopropyltriethoxysilane;

[0030] 12 parts of low molar mass hydroxyl silicone oil;

[0031] 26 parts of xylene;

[0032] 0.02 part of toluene solution of titanium tetrachloride;

[0033] 3 parts fumaric acid;

[0034] 5 parts of vinyl acetate.

[0035] Wherein: the toluene solution of described titanium tetrachloride is: the volume ratio of titanium tetrachloride and toluene is 1: 1; The structural formula of the hydroxyl silicone oil of described low molar mass is:

[0036]

[0037] In the formula, n=4, 6 or 8

Embodiment 2

[0039] Parts by weight:

[0040] 26 parts of maleic anhydride;

[0041] 8 parts of adipic acid;

[0042] 8 parts of trimethylolpropane;

[0043] 30 parts of diethylene glycol;

[0044] 4 parts of N-(β-amino)-γ-aminopropyltriethoxysilane;

[0045] 10 parts of hydroxy silicone oil with low molar mass;

[0046] 28 parts of xylene;

[0047] 0.02 part of toluene solution of titanium tetrachloride;

[0048] 2 parts fumaric acid;

[0049] 3 parts of vinyl acetate.

[0050] All the other are the same as the description to embodiment 1.

Embodiment 3

[0052] Parts by weight:

[0053] 4 parts of terephthalic acid;

[0054] 5 parts of trimethylolpropane;

[0055] 5 parts of neopentyl glycol;

[0056] 4 parts of N-(β-amino)-γ-aminopropyltriethoxysilane;

[0057] 15 parts of low molar mass hydroxyl silicone oil;

[0058] 30 parts of xylene;

[0059] 5 parts of N-(β-amino)-γ-aminopropyltriethoxysilane;

[0060] 0.03 part of toluene solution of titanium tetrachloride.

[0061] All the other are the same as the description to embodiment 1.

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PUM

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Abstract

The invention relates to an organic silicon modification polyester resin and belongs to the technical field of chemical painting. The organic silicon modification polyester resin is composed of raw materials in the ratio of weight parts: binary acid or anhydride or ester of the anhydride 25 parts to 45 parts, polyhydric alcohol 30 parts to 40 parts, organic silicon intermediate 10 parts to 20 parts, a silane coupling agent 3.0 parts to 5.0 parts, catalyst 0.02 part to 0.03 part, plasticizer 0 part to 8.0 parts and solvent 26 parts to 30 parts. The organic silicon modification polyester resin has ideal transparent effect, a light permeable rate of water resisting property after poaching is up to 86% to 90% and a light permeable rate of heat resisting property after baking at 350 DEG C for 3h / 6h is respectively up to 85% to 88% / 83% to 88%.

Description

technical field [0001] The invention belongs to the technical field of chemical coatings, and in particular relates to an organosilicon-modified polyester resin. Background technique [0002] Polyester resin is the main raw material for the manufacture of coatings, films, polyester fibers and engineering plastics, and is usually prepared by esterification and polycondensation of dibasic alcohols and dibasic acids. The characteristics of this type of polymer are: it has the advantages of brightness, fullness, high hardness, good physical and mechanical properties, and good chemical corrosion resistance, but it has defects such as poor water resistance and high temperature resistance. [0003] In recent years, people use silicone to modify polyester resin, so that the advantages of the two polymers are complemented, thereby improving the performance of the resin and expanding its scope of use, but there are still performance instability, poor color and transparency , Water re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/695C08K5/092C08K5/101C08L67/00C08L67/02C09D167/00C09D167/02
Inventor 黄多能
Owner 常熟市辛庄镇前进五金厂