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Special powder paint for outdoor metal guardrail

A powder coating and guardrail technology, applied in powder coatings, anti-corrosion coatings, coatings, etc., can solve the problems of coating powder and peeling, the coating is easy to scratch the human body, and the appearance of the guardrail is affected, and the corrosion rate is slow and excellent. Adhesion, avoid chalking and peeling effect

Inactive Publication Date: 2017-05-31
ANHUI ZHENXIN PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of use, it is found that the coating formed on the guardrail is prone to powdering and peeling, which not only affects the appearance of the guardrail, but also the cracked coating is easy to scratch the human body, posing a safety hazard

Method used

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  • Special powder paint for outdoor metal guardrail

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Add 3 parts of bismaleimide resin and 3 parts of hydrogenated rosin pentaerythritol ester to 20 parts of thermosetting acrylic resin, and heat up to 130-135 ° C at a heating rate of 5 ° C / min and mix for 20 minutes, then add 1 1 part of sepiolite fiber, 0.5 part of N-methylolacrylamide and 0.5 part of dilauryl thiodipropionate, continue to mix at 130-135 ° C for 10 minutes, and then naturally cool to room temperature to obtain material I;

[0024] (2) Add 2 parts of C5 hydrogenated petroleum resin and 1 part of waste tire rubber powder to 10 parts of aromatic hydrocarbon modified terpene resin, and heat up to 100-105 °C at a heating rate of 5 °C / min and mix for 15 minutes, then add 0.5 parts of polydimethyldiallyl ammonium chloride and 0.3 parts of tris (2-chloroethyl) phosphate, continue to heat up to 125-130 ° C at a heating rate of 5 ° C / min and mix for 15 min, then naturally cool to At room temperature, the material II is obtained;

[0025] (3) Add material...

Embodiment 2

[0029] (1) Add 3 parts of bismaleimide resin and 2 parts of hydrogenated rosin pentaerythritol ester to 20 parts of thermosetting acrylic resin, and heat up to 130-135 °C at a heating rate of 5 °C / min and mix for 20 minutes, then add 1 1 part of sepiolite fiber, 1 part of N-methylolacrylamide and 0.5 part of dilauryl thiodipropionate, continue to mix at 130-135 ° C for 10 minutes, and then naturally cool to room temperature to obtain material I;

[0030] (2) Add 2 parts of C5 hydrogenated petroleum resin and 2 parts of waste tire rubber powder to 10 parts of aromatic hydrocarbon modified terpene resin, and heat up to 100-105 °C at a heating rate of 5 °C / min and mix for 15 minutes, then add 1 part of polydimethyldiallyl ammonium chloride and 0.3 part of tris (2-chloroethyl) phosphate, continue to heat up to 125-130 ° C at a heating rate of 5 ° C / min and mix for 15 min, then naturally cool to At room temperature, the material II is obtained;

[0031] (3) Add material II, 2 pa...

Embodiment 3

[0035] The powder coatings prepared in Example 1 and Example 2 were sprayed on the metal guardrail by electrostatic spraying technology, and the service performance test of the formed coating was carried out. The test results are shown in Table 1.

[0036] The performance of the powder coating prepared by the embodiment of the present invention in table 1

[0037]

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PUM

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Abstract

The invention discloses special powder paint for an outdoor metal guardrail and relates to the technical field of processing of metal paint. The special powder paint is prepared from the following raw materials in parts by weight: 15 to 20 parts of thermosetting acrylic resin, 10 to 15 parts of aromatic hydrocarbon modified terpene resin, 3 to 6 parts of bismaleimide resin, 2 to 4 parts of C5 hydrogenation petroleum resin, 2 to 4 parts of pentaerythritol ester of hydrogenated rosin, 1 to 2 parts of waste tire rubber powder, 1 to 2 parts of asbestos powder, 1 to 2 parts of sepiolite fiber, 0.5 to 1 part of poly-dimethyl-diallyl-ammonium chloride, 0.5 to 1 part of N-methylol acrylamide, 0.5 to 1 part of aluminum chlorohydrate, 0.3 to 0.5 part of tri(2-chloroethyl) phosphate, 0.3 to 0.5 part of dilauryl thiodipropionate, 0.1 to 0.3 part of tribasic lead sulfate and 0.1 to 0.3 part of triphenyl phosphite. A coating formed by the powder paint has excellent adhesion property, wearing resistance and weather resistance and can be firmly attached on the surface of the metal guardrail; a rusting speed is slow and powdering and falling phenomena of the coating are avoided.

Description

[0001] Technical field: [0002] The invention relates to the technical field of metal paint processing, in particular to a special powder paint for outdoor metal guardrails. [0003] Background technique: [0004] Metal guardrails are widely used in life, mainly for safety protection. Because the outdoor metal guardrail is exposed to the atmospheric environment for a long time, the corrosion rate is relatively fast. In order to slow down the erosion rate of the metal guardrail by the atmospheric environment, paint is usually sprayed on the guardrail, and the formed coating is used to protect the guardrail and prolong the service life of the guardrail. However, in the process of use, it was found that the coating formed on the guardrail is prone to powdering and peeling, which not only affects the appearance of the guardrail, but also the cracked coating is easy to scratch the human body, posing a safety hazard. [0005] Invention content: [0006] The technical problem to b...

Claims

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Application Information

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IPC IPC(8): C09D4/02C09D4/06C09D5/03C09D5/08C09D7/12
Inventor 吴彬彬
Owner ANHUI ZHENXIN PAINT
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