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Environment-friendly low-temperature curing pure polyester powder paint and preparation method thereof

A polyester powder, environmentally friendly technology, used in polyester coatings, powder coatings, coatings, etc., can solve the problems of TGIC system use limitation, high TGIC curing temperature, affecting male fertility, etc., and achieve good application and industrial development. Prospects, outstanding product performance, the effect of excellent physical and mechanical properties

Inactive Publication Date: 2011-03-16
CHINA NAT ELECTRIC APP RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, studies in recent years have found that TGIC monomer has strong toxicity to animal cells, can cause genetic damage to animals, affect male fertility and cause cell variation and is hereditary, so its use has been limited in recent years. On the other hand, TGIC Higher curing temperature is required, so more energy is consumed when coating and curing. As people pay more and more attention to environmental protection, energy saving and other issues, the use of TGIC system is more and more restricted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The components and weight ratios of environmentally friendly low-temperature curing pure polyester powder coatings are:

[0034] 200 parts of carboxyl polyester resin with acid value of 29~35mgKOH / g

[0035] HAA curing agent 10.0 parts

[0036] 80 parts of titanium dioxide

[0037] 80 parts of barium sulfate

[0038] Acrylic leveling agent 502 2.4 parts

[0039] Benzoin 1.2 parts

[0040] Permeable agent 703 1.5 parts

[0041] Power increase agent EDI 1.2 parts

[0042] Carbon black MA-100 3.0 parts

[0043] Preparation:

[0044] (a) Weigh the carboxyl polyester resin, HAA curing agent, titanium dioxide, barium sulfate, acrylic leveling agent 502, benzoin, breather 703, electrifying agent EDI and carbon black MA-100, and place them in the mixture. Material tank, fully mixed and crushed for 5 minutes;

[0045] (b) The crushed material is extruded into the twin or single screw extruder; the heating temperature of the extruder is controlled at 90℃;

[0046] (c) The extruded material is pul...

Embodiment 2

[0048] The components and weight ratios of environmentally friendly low-temperature curing pure polyester powder coatings are:

[0049] 200 parts of carboxyl polyester resin with acid value of 29~35mgKOH / g

[0050] HAA curing agent 5.0 parts

[0051] 80 parts of titanium dioxide

[0052] 80 parts of barium sulfate

[0053] Acrylic leveling agent 502 2.4 parts

[0054] Benzoin 1.2 parts

[0055] Permeable agent 703 1.5 parts

[0056] Matting agent Ma-2333 20 parts

[0057] Power increase agent EDI 1.2 parts

[0058] Carbon black MA-100 3.0 parts

[0059] Preparation:

[0060] (a) Weigh carboxyl polyester resin, HAA curing agent, titanium dioxide, barium sulfate, acrylic leveling agent 502, benzoin, breather 703, matting agent Ma-2333, electrifying agent EDI and carbon black MA -100, placed in the mixing tank, fully mixed and crushed for 5 minutes;

[0061] (b) The crushed materials enter the twin or single screw extruder for extrusion; the heating temperature of the extruder is controlled at 90...

Embodiment 3

[0064] The components and weight ratio of environmentally friendly low-temperature curing pure polyester powder coating are:

[0065] 200 parts of carboxyl polyester resin with acid value of 29~35mgKOH / g

[0066] HAA curing agent 5.0 parts

[0067] 80 parts of titanium dioxide

[0068] 80 parts of barium sulfate

[0069] Sand texture agent 825 3.0 parts

[0070] Benzoin 1.2 parts

[0071] Power increase agent EDI 1.2 parts

[0072] Carbon black MA-100 3.0 parts

[0073] Preparation:

[0074] (a) Weigh the carboxyl polyester resin, HAA curing agent, titanium dioxide, barium sulfate, sand texture agent 825, benzoin, electrifying agent EDI and carbon black MA-100 in proportion, and place them in the mixing tank, fully mix and crush them 10 minutes;

[0075] (b) The crushed material is extruded into the twin or single screw extruder; the heating temperature of the extruder is controlled at 100℃;

[0076] (c) The extruded material is pulverized into a powder with a particle size (equivalent partic...

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Abstract

The invention discloses an environment-friendly low-temperature curing pure polyester powder paint, comprising the following components in parts by weight: 100-200 parts of hydroxyl polyester resin, 1-20 parts of HAA curing agent, 0-30 parts of auxiliaries, 0-16 parts of inorganic filler and 0-30 parts of pigment. The invention also discloses a preparation method of the powder paint. The environment-friendly low-temperature curing pure polyester powder paint provided by the invention has simple formula, low toxicity, environment protection and low curing temperature, and contains no TGIC in the raw material components by adopting the novel carboxyl-terminated polyester resin to be combined with beta-hydroxyalkylamides, and the cured coating has the characteristics of excellent physical and mechanical properties, chemical resistance, outdoor weather fastness and the like; in addition, the powder paint provided by the invention can be used in outdoor appliances and is a real energy-saving environment-friendly paint product.

Description

Technical field [0001] The invention relates to a powder coating, in particular to an environmentally-friendly low-temperature curing pure polyester powder coating applied to the field of outdoor home appliances, and the invention also relates to a preparation method of the powder coating. Background technique [0002] Powder coating is a recognized 4E type coating product with high production efficiency, excellent film performance, eco-friendly and economical. [0003] For coatings used in the fields of air-conditioning compressors, garden furniture, highway guardrails, outdoor power distribution cabinets, etc., the cured coating needs to be resistant to ultraviolet light aging in addition to decoration and corrosion resistance. , Pure polyester powder coatings are widely used in outdoor coating fields because they have the above advantages at the same time. [0004] Pure polyester powder coatings are divided into polyester / TGIC (triglycidyl isocyanuric acid value) type and polyest...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D5/03C09D7/12
Inventor 胡百九高庆福罗绵生甘灯河王锦宏张捷周和荣
Owner CHINA NAT ELECTRIC APP RES INST
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