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Low-temperature antistatic powder coating for automobile fuel pipe and preparation method thereof

A technology for powder coatings and refueling pipes, applied in powder coatings, conductive coatings, polyester coatings, etc., can solve the problems of high curing temperature, difficult curing and molding, low safety factor, etc., to enhance reactivity, reduce curing temperature, and improve The effect of formability

Active Publication Date: 2019-10-11
ANHUI SUNROAD ENVIRONMENT PROTECTIVE NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the anti-stone chip coating has a high VOC content, which cannot meet the environmental protection requirements; the main resin component of the powder coating includes polyester resin; the curing temperature of polyester in the prior art is relatively high, usually 180°C, and it is not easy to cure and shape; in addition, the coating Larger resistance, higher than 1×10 10 Ohm, when refueling, static sparks will be generated between the refueling pipe and the refueling gun, resulting in a low safety factor

Method used

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  • Low-temperature antistatic powder coating for automobile fuel pipe and preparation method thereof

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Embodiment 1

[0032] This embodiment discloses a low-temperature antistatic powder coating for automobile fuel pipes, which is made of the following raw materials in parts by mass: 35 parts of two-component polyester, 3 parts of curing agent, 0.2 parts of catalyst, and 5 parts of conductive metal powder , 0.3 parts of defoamer, 15 parts of barium sulfate, 5 parts of ceramic clay, and 1 part of leveling agent.

[0033] Wherein, the two-component polyester comprises 15 parts of polyester A and 20 parts of polyester B. Polyester A is a saturated polyester with an acid value of 45 mgKOH / g, and its viscosity is 2500 (mPa.s / 200 degrees); Polyester B is a saturated polyester resin modified by acrylic acid monomers, with an acid value of 30 mgKOH / g and a viscosity of 2500 (mPa.s / 200 degrees). At 3000mPa.s / 200°C. The curing agent uses TGIC and DHBP with a mass ratio of 1:1; the catalyst component includes 2-methylimidazole; the conductive metal powder uses aluminum powder with a particle size of 30...

Embodiment 2

[0039] This embodiment discloses a low-temperature antistatic powder coating for automobile fuel pipes, which is made of the following raw materials in parts by mass: 50 parts of two-component polyester, 5 parts of curing agent, 0.3 parts of catalyst, and 10 parts of conductive metal powder , 0.4 parts of defoamer, 17 parts of barium sulfate, 10 parts of ceramic clay, 1.5 parts of leveling agent, 0.5 parts of antioxidant, 0.2 parts of loosening agent.

[0040] Among them, the two-component polyester includes 20 parts of polyester A, 30 parts of polyester B; the acid value of polyester A is 50 mgKOH / g saturated polyester, the viscosity is 3000 (mPa.s / 200 ℃); polyester B It is a saturated polyester resin modified by acrylic monomer, its acid value is 35mgKOH / g, viscosity is 4500(mPa.s / 200℃). The composition of the curing agent includes 1,3,5-triglycidyl-S-triazinetrione and DHBP with a mass ratio of 1:2; the composition of the catalyst includes 2-phenylimidazoline; the conductiv...

Embodiment 3

[0046] This embodiment discloses a low-temperature antistatic powder coating for automobile fuel pipes, which is made of the following raw materials in parts by mass: 75 parts of two-component polyester, 7 parts of curing agent, 0.5 parts of catalyst, and 15 parts of conductive metal powder , 0.5 parts of defoamer, 20 parts of barium sulfate, 15 parts of ceramic clay, 2 parts of leveling agent, 1 part of antioxidant, 0.5 parts of loosening agent.

[0047] Among them, the two-component polyester includes 35 parts of polyester A and 40 parts of polyester B; the acid value of polyester A is a saturated polyester of 55mgKOH / g, and the viscosity is 4500 (mPa.s / 200°C); polyester B It is a saturated polyester resin modified by acrylic acid monomer, its acid value is 37mgKOH / g, viscosity is 6000(mPa.s / 200℃). The composition of the curing agent includes triglycidyl isocyanurate with a mass ratio of 2:1, epoxy equivalent 110 (g / eq), DHBP; the composition of the catalyst includes 2-pheny...

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Abstract

The invention discloses a low temperature antistatic powder coating for automobile oil filling pipes. The powder coating is prepared from the following raw materials by mass: 35-75 parts of bicomponent polyester, 3-7 parts of a curing agent, 0.2-0.5 part of a catalyst, 5-15 parts of conductive metal powder, 0.3-0.5 part of a defoaming agent, 15-20 parts of barium sulfate, 5-15 parts of ceramic clay, and 1-2 parts of a leveling agent, wherein the bicomponent polyester comprises 15-35 parts of polyester A, and 20-40 parts of polyester B; the polyester B is acrylic monomer modified saturated polyester resin, and has an acid value of 30-37mgKOH / g and viscosity of 3000-6000mPa.s / 200DEG C. The invention also discloses a method for preparation of the low temperature antistatic powder coating for automobile oil filling pipes. The low temperature antistatic powder coating provided by the invention has the technical effects of low curing temperature, green and environment protection and low resistance, and avoids generation of electrostatic spark between oil filling pipes and oil guns.

Description

technical field [0001] The invention relates to the technical field of chemical coatings, in particular to a low-temperature antistatic powder coating used for fuel oil pipes of automobiles and a preparation method thereof. Background technique [0002] Existing auto parts, such as the inner surface of the fuel pipe, are mostly coated with a paint layer for protection. The traditional coatings for automotive fuel pipes mainly include anti-stone impact coatings and powder coatings. Among them, the anti-stone chip coating has a high VOC content, which cannot meet the environmental protection requirements; the main resin component of the powder coating includes polyester resin; the curing temperature of polyester in the prior art is relatively high, usually 180°C, and it is not easy to cure and shape; in addition, the coating Larger resistance, higher than 1×10 10 Ohm, when refueling, static sparks will be generated between the refueling pipe and the refueling gun, resulting ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/06C09D167/00C09D5/24C09D5/03C09D7/61C08G63/91
Inventor 黄俊峰叶名昇徐玮峰王明张军辉郑江薛晨
Owner ANHUI SUNROAD ENVIRONMENT PROTECTIVE NEW MATERIALS