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High strength modified polyester resin coating

A technology for modifying polyester and resin coatings, applied in polyester coatings, anti-corrosion coatings, fire-resistant coatings, etc., can solve the problems of limiting the application of high-performance coatings, large shrinkage, and low toughness, so as to reduce volume shrinkage and improve Reinforcing performance and improving overall performance

Inactive Publication Date: 2015-09-16
GUANGDE MEITUSHI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyester resin has the disadvantages of large shrinkage, low toughness, and low strength, which limit its application in high-performance coatings.

Method used

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  • High strength modified polyester resin coating
  • High strength modified polyester resin coating
  • High strength modified polyester resin coating

Examples

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Effect test

Embodiment 1

[0024] A kind of high-strength modified polyester resin paint that the present invention proposes, its raw material comprises the following components by weight:

[0025]

Embodiment 2

[0027] A kind of high-strength modified polyester resin paint that the present invention proposes, its raw material comprises the following components by weight:

[0028]

[0029]

[0030] Wherein, the nano-titanium dioxide-modified polyester resin is prepared according to the following process: adding nano-titanium dioxide and vinyltriethoxysilane to ethanol, heating to 45°C, stirring for 3 hours, cooling, filtering, drying, and crushing to obtain the modified Nano-titanium dioxide; mix maleic anhydride, isophthalic acid, hexanediol and modified nano-titanium dioxide evenly, raise the temperature to 140°C, react for 2.5h, raise the temperature to 175°C, react for 3h, and then in a vacuum of 0.1MPa React under reduced pressure for 1 hour, add paraffin and dicyclopentadiene after cooling down to 160°C, add styrene and 2,4-toluene diisocyanate after cooling down to 110°C, stir for 100 minutes to obtain nano titanium dioxide modified polyester resin.

Embodiment 3

[0032] A kind of high-strength modified polyester resin paint that the present invention proposes, its raw material comprises the following components by weight:

[0033]

[0034] Wherein, the nano-titanium dioxide-modified polyester resin is prepared according to the following process: add 45 parts of nano-titanium dioxide and 0.8 part of vinyltriethoxysilane to 80 parts of ethanol in parts by weight, heat to 53 ° C and stir for 2.6 hours, After cooling down, filter, dry, and pulverize to obtain modified nano-titanium dioxide; mix 2.3 parts of maleic anhydride, 3.8 parts of isophthalic acid, 10 parts of hexanediol and 0.35 parts of modified nano-titanium dioxide in molar parts, and heat up to 150°C , react for 2.3 hours, heat up to 186°C, react for 2.5h, then react under reduced pressure for 2h under the condition of vacuum degree of 0.25MPa, add 0.15 parts of paraffin and 0.8 parts of dicyclopentadiene after cooling down to 158°C, and cool down to 126°C Then add 0.7 parts o...

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Abstract

The invention discloses a high strength modified polyester resin coating. The coating comprises, by weight, 50-80 parts of nanometer titanium dioxide modified polyester resin, 3-10 parts of carboxyl-terminated polybutadiene, 3-10 parts of hydroxyl-terminated polybutadiene rubber, 3-10 parts of isoprene-styrene block copolymer, 5-10 parts of amino resin, 2-15 parts of silicon carbide, 3-10 parts of polyacrylonitrile fiber, 2-8 parts of montmorillonite, 0.1-1 part of zinc isoocatanoate, 0.1-0.5 parts of sodium p-toluenesulfonate, 12-25 parts of a solvent, 0.2-1 part of 5-chloro-2-methyl-4-isothiazolin-3-one, 2-5 parts of a silane coupling agent KH560, 0.5-1.5 parts of triphenyl phosphate and 1-5 parts of an assistant. The high strength modified polyester resin coating has the advantages of high strength, good toughness, small shrinkage rate during curing, and excellent contamination resistance.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a high-strength modified polyester resin coating. Background technique [0002] Polyester resin has the characteristics of good metal adhesion, high hardness, excellent chemical corrosion resistance, and good processing performance. It can be cured and formed at room temperature and normal pressure. It has been widely used in transportation, electrical, construction, daily necessities and other fields. , It is also widely used in the coating industry. However, polyester resin has the disadvantages of high shrinkage, low toughness and low strength, which limit its application in high-performance coatings. In order to improve the performance of the coating and meet the needs of specific occasions, it needs to be modified. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a high-strength modi...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D153/02C09D161/20C09D133/20C09D113/00C09D115/00C09D5/14C09D5/18C09D5/08C09D7/12
Inventor 郑端飞
Owner GUANGDE MEITUSHI CHEM
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