Organosilicon modified polyester coiled material finish paint and preparation method thereof

A modified polyester and silicone technology, applied in polyester coatings, coatings, etc., can solve the problems of modified polyester such as flexibility and adhesion decline, and achieve high fullness, good workability, and good economic benefits Effect

Active Publication Date: 2015-05-06
ZHEJIANG TIANNU GROUP PAINT MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large amount of silicone resin is used in the above method, resul

Method used

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  • Organosilicon modified polyester coiled material finish paint and preparation method thereof
  • Organosilicon modified polyester coiled material finish paint and preparation method thereof
  • Organosilicon modified polyester coiled material finish paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of organosilicon modified polyester coil topcoat described in the present embodiment, it is made of containing weight ratio 500g organosilicon modified polyester resin, 90g amino resin, 30g phthalocyanine blue, 80g titanium dioxide, 1g organic yellow, 90g Precipitated barium sulfate, 90g precipitated barium sulfate, 4g polydimethylsiloxane, copolymer of low molecular weight unsaturated polycarboxylic acid polymer and polysiloxane, 3g 2-hydroxy-4-n-octyloxybenzophenone , 5g dodecylbenzenesulfonic acid, 3g polyether modified polydimethylsiloxane or polyester modified polydimethylsiloxane, 3g isocyanate modified acrylate or polyether polyester modified silicone and 100g xylene; among them, silicone modified polyester resin is composed of 10g isophthalic acid, 8g adipic acid, 6g1,4-cyclohexanedicarboxylic acid, 8g neopentyl glycol, 7g ethyl butyl propylene glycol, 7g of 2,2,4-trimethyl-1,3-pentanediol, 0.08g of tin catalyst, 20g of organosilicon intermediate, 2.5g of...

Embodiment 2

[0027] A kind of organosilicon-modified polyester coil topcoat described in this embodiment, it is made of organosilicon-modified polyester resin, 90g amino resin, 30g phthalocyanine blue, 80g titanium dioxide, 1g organic yellow, 90g precipitated barium sulfate, 4g polydimethylsiloxane, copolymer of low molecular weight unsaturated polycarboxylic acid polymer and polysiloxane, 3g2-hydroxyl-4-n-octyloxybenzophenone, 5g dodeca Alkylbenzenesulfonic acid, 3g polyether-modified polydimethylsiloxane or polyester-modified polydimethylsiloxane, 3g isocyanate-modified acrylate or polyether-modified polyester silicone and 100g butyl ether Composition; Among them, the silicone modified polyester resin is composed of 12g monoacid, 10g isophthalic acid, 18g terephthalic acid, 4.5g adipic acid, 20.5g methyl propylene glycol, 2.1g trimethylol methyl propane, 2g Refluxing xylene, 2.5g of trimellitic anhydride, 30g of No. 100 aromatic hydrocarbon solvent and 6g of butanol.

[0028] A kind of ...

Embodiment 3

[0034] A kind of organosilicon-modified polyester coil topcoat described in this embodiment, it is made of organosilicon-modified polyester resin, 120g amino resin, 50g titanium dioxide, 6g carbon black, 1g organic yellow, 90g by weight ratio 500g Precipitated barium sulfate, 4g polydimethylsiloxane, copolymer of low molecular weight unsaturated polycarboxylic acid polymer and polysiloxane, 3g 2-hydroxy-4-n-octyloxybenzophenone, 5g dinonyl Naphthalenesulfonic acid, 3g polyether modified polydimethylsiloxane or polyester modified polydimethylsiloxane, 3g isocyanate modified acrylate or polyether polyester modified silicone and 100g aromatic hydrocarbon; , Silicone modified polyester resin is composed of 10g isophthalic acid, 8g adipic acid, 6g1,4-cyclohexanedicarboxylic acid, 8g neopentyl glycol, 7g ethyl butyl propanediol, 7g2,2,4-tri Methyl-1,3-pentanediol, 0.08g tin catalyst, 20g organosilicon intermediate, 2.5g refluxing xylene, 2.5g trimellitic anhydride, 25g No. 100 aroma...

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Abstract

The invention discloses coiled material coating and a preparation method thereof and particularly relates to organosilicon modified polyester coiled material finish paint and a preparation method thereof. The purpose of the invention is to provide organosilicon modified polyester coiled material finish paint and a preparation method thereof, wherein the organosilicon modified polyester coiled material finish paint product has the advantages of high drying speed, good storage stability, no layering, excellent application property and relatively low VOC and capability of reducing the environmental pollution, is lowered in manufacturing cost and can satisfy the industrial standard on product performance. The organosilicon modified polyester coiled material finish paint contains 40-60% of organosilicon modified polyester resin, 8-15% of amino resin, 10-20% of pigments, 10-20% of precipitated barium sulfate, 0.3-0.8% of a dispersion agent, 0.3-0.8% of a UV absorber, 0.4-1.0% of a blocked acid catalyst, 0.3-0.8% of a flatting agent, 0.3-0.8% of a defoaming agent and 5-15% of a solvent.

Description

technical field [0001] The invention relates to a coil coating and a preparation method thereof, in particular to an organosilicon-modified polyester coil topcoat and a preparation method thereof. Background technique [0002] Coil coatings have been produced and developed in China for decades. With the rapid development of my country's economic construction, the demand for coil coatings is increasing, and the requirements for its performance are also increasing. At present, polyester resin coating is the largest variety of coil coating. The composition of polyester resin has high variability, and it has excellent deformability under good surface hardness, especially in the case of polymer linear copolyester, it has strong metal adhesion, and the formed paint film It has good physical and mechanical properties such as bright, plump, high hardness and good chemical corrosion resistance. However, polyester resin has poor heat resistance, low yellowing resistance, and poor w...

Claims

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Application Information

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IPC IPC(8): C09D167/02C09D161/32C09D7/12C08G63/695
CPCC08G63/6956C08L2205/02C08L2205/035C09D7/61C09D7/63C09D7/65C09D167/02C08L61/32C08L83/04C08L83/12C08L83/10C08K13/02C08K2003/2241C08K2003/3045C08K5/07C08K5/42
Inventor 董群锋姚飞朱敬林李佳顺
Owner ZHEJIANG TIANNU GROUP PAINT MFG
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