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High weather resistant powder coating and production process thereof

A powder coating, high weather-resistant technology, used in powder coatings, coatings, etc., can solve the problems of powder coatings incompetence, achieve excellent compatibility, reduce friction coefficient, and improve smoothness.

Inactive Publication Date: 2019-10-25
厦门国丽静电粉末有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in some occasions that require higher weather resistance, such as ships, solar power stations and charging equipment, aerospace equipment and other extreme requirements, powder coatings are currently not competent

Method used

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  • High weather resistant powder coating and production process thereof
  • High weather resistant powder coating and production process thereof
  • High weather resistant powder coating and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: A high weather resistance powder coating, the components and their corresponding parts by weight are shown in Table 1. Among them, the fluorocarbon resin is the fluorocarbon resin sf-750h purchased from Beijing Huatong Rich; the titanium dioxide is the titanium dioxide R-699 purchased from Billions Group; the leveling agent is the leveling agent produced by Ningbo Nanhai Chemical Co., Ltd. The curing agent is triglycidyl isocyanurate (TGIC) purchased from Changzhou Niutang Chemical Factory Co., Ltd.; the surface treatment agent is wax powder 0602f purchased from Nanjing Tianshi New Material Technology Co., Ltd.; the brightening agent is BLC701B was purchased from Ningbo Nanhai Chemical Co., Ltd.; benzoin was benzoin 119-53-9 purchased from Shanghai Yuanye Biotechnology Co., Ltd.; the inorganic filler was precipitated barium sulfate BS80 purchased from Shanghai Yutong Chemical Technology Co., Ltd.

[0036] Silicone modified polyester resin is prepared through ...

Embodiment 2-5

[0043] Example 2-5: A high weather resistance powder coating, the difference from Example 1 is that each component and its corresponding parts by weight are shown in Table 1.

[0044] Each component and parts by weight thereof in table 1 embodiment 1-5

[0045]

[0046]

Embodiment 6

[0047] Embodiment 6: A high-weather-resistant powder coating, which is different from Embodiment 1 in that the curing agent used is an imidazoline curing agent.

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Abstract

The invention discloses a high weather resistant powder coating and a production process thereof, and belongs to the technical field of powder coating production. The high weather resistant powder coating is prepared from the following components in parts by weight: 360-400 parts of organic silicon modified polyester resin, 200-250 parts of fluorocarbon resin, 10-20 parts of a curing agent, 140-150 parts of titanium dioxide, 5-10 parts of a surface treatment agent, 200-220 parts of inorganic filler, 10-15 parts of a leveling agent, 10-15 parts of an optical brightener, and 10-15 parts of benzoin. The preparation method of the organic silicon modified polyester resin comprises the steps of putting a chloro unsaturated polyester resin raw material into a four port flask, heating to 100-120DEG C to conduct a condensation reaction, when the acid value drops to 6-6.5, vacuumizing to remove water and other micromolecules in a system, then reducing a reaction system to 35-38DEG C, adding an organosilicon prepolymer and tetrabutyl titanate, warming up to 75-80DEG C to conduct a condensation reaction, and changing the reaction system from turbidity to complete transparency to make the organic silicon modified polyester resin. The production process has the advantages of improving weather resistance performance of the powder coating and making the powder coating suitable for high weatherresistance occasions.

Description

technical field [0001] The invention belongs to the technical field of powder coatings, more specifically, it relates to a high-weather-resistant powder coating and its production process. Background technique [0002] In the past ten years, with the increasing development of the national economy and the continuous improvement of people's living standards, the requirements for the decoration, weather resistance, chemical resistance, water resistance and stain resistance of coatings are getting higher and higher. [0003] At present, the weather resistance of conventional powder coatings on the market is stipulated in the national standard GB5237.4 of the domestic aluminum profile. with great difficulty. Such as a high weather resistance polyester powder coating disclosed in the Chinese invention patent with the publication number CN104119785A, its composition and weight ratio are: polyester resin 55-65%, titanium dioxide 15-22%, barium sulfate 12% -16%, curing agent 3-6%, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/10C09D127/12C09D5/03C09D7/61C09D7/47C09D7/62C08G77/46C08G77/445
CPCC08G77/445C08G77/46C08K2003/2241C08K2003/265C08K2003/3045C09D5/033C09D183/10C08L27/12C08L83/12C08K3/22C08K9/04C08K3/26C08K3/30
Inventor 陈其望
Owner 厦门国丽静电粉末有限公司
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