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A special modified cashew nut shell oil resin anticorrosion finish paint for steel structure and preparation method thereof

A cashew nut shell oil resin, modified technology, applied in the field of paint, can solve the problems of strong solvent resistance, long recoating time, poor weather resistance, etc., achieve the effect of controlling gloss, good gloss, and improving anti-corrosion performance

Active Publication Date: 2018-05-04
ANHUI XINDALU SPECIAL PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to the type of base material, steel structure paints include alkyd paint, amino paint, epoxy paint, polyurethane paint, acrylic paint, etc. The topcoat is a one-component alkyd resin topcoat with good overall performance, but it takes a long time to recoat, is not resistant to strong solvents, and the paint film is soft and easy to yellow, resulting in cracks and skin bursts; acrylic polyurethane The top coat is a two-component acrylic polyurethane coating with relatively poor weather resistance and high price and limited use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A special modified cashew nut shell oil resin anti-corrosion finish paint for steel structure, which is composed of the following components in parts by weight: 45 parts of maleic anhydride modified cashew nut shell oil resin, 0.8 part of dispersant, 0.4 part of organic bentonite, gas phase dioxide 0.4 parts of silicon, 12 parts of rutile titanium dioxide, 0.15 parts of carbon black, 0.07 parts of phthalocyanine blue BGS, 9 parts of 800 mesh feldspar powder, 23 parts of 1500 mesh heavy calcium, 1.2 parts of composite drier, 10 parts of xylene.

[0017] The synthesis process of the maleic anhydride-modified cashew nut shell oil resin is as follows: under the protection of nitrogen, the cashew nut shell oil resin is added to the reaction kettle, then DMF and THF are added, NaH is slowly added, stirred, and maleic anhydride is added to react for 1 hour , adjust the pH value of the system until substances are precipitated, extract and wash with water.

[0018] The preparati...

Embodiment 2

[0022] A special modified cashew nut shell oil resin anti-corrosion finish paint for steel structure, which is composed of the following components in parts by weight: 42 parts of maleic anhydride modified cashew nut shell oil resin, 1.0 part of dispersant, 0.3 part of organic bentonite, gas phase dioxide 0.5 parts of silicon, 10 parts of rutile titanium dioxide, 0.2 parts of carbon black, 0.06 parts of phthalocyanine blue BGS, 10 parts of 800 mesh feldspar powder, 20 parts of 1500 mesh heavy calcium, 1.5 parts of composite drier, 8 parts of xylene.

[0023] The synthesis process of the maleic anhydride-modified cashew nut shell oil resin is as follows: under the protection of nitrogen, the cashew nut shell oil resin is added to the reaction kettle, then DMF and THF are added, NaH is slowly added, stirred, and maleic anhydride is added to react for 1 hour , adjust the pH value of the system until substances are precipitated, extract and wash with water.

[0024] The preparatio...

Embodiment 3

[0026] A special modified cashew nut shell oil resin anti-corrosion finish paint for steel structure, which is composed of the following components in parts by weight: 46 parts of maleic anhydride modified cashew nut shell oil resin, 0.5 part of dispersant, 0.5 part of organic bentonite, gas phase dioxide 0.3 parts of silicon, 15 parts of rutile titanium dioxide, 0.1 part of carbon black, 0.1 part of phthalocyanine blue BGS, 8 parts of 800 mesh feldspar powder, 25 parts of 1500 mesh heavy calcium, 1.0 part of composite drier, 10 parts of xylene.

[0027] The synthesis process of the maleic anhydride-modified cashew nut shell oil resin is as follows: under the protection of nitrogen, the cashew nut shell oil resin is added to the reaction kettle, then DMF and THF are added, NaH is slowly added, stirred, and maleic anhydride is added to react for 1 hour , adjust the pH value of the system until substances are precipitated, extract and wash with water.

[0028] The preparation me...

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Abstract

The invention discloses an anticorrosive modified cashew nutshell oil resin finish paint for a steel structure and a preparation method thereof. The anticorrosive finish paint comprises the following components in parts by weight: 42-46 parts of modified cashew nutshell oil resin, 0.5-1.0 part of a dispersing agent, 0.3-0.5 part of organic bentonite, 0.3-0.5 part of fumed silica, 10-15 parts of rutile titanium white, 0.1-0.2 part of carbon black, 0.06-0.1 part of phthalocyanine blue BGS, 8-10 parts of feldspar powder, 20-25 parts of heavy calcium carbonate, 1.0-1.5 parts of a combination drier and 8-10 parts of xylene. The finish paint provided by the invention has good adhesive force, excellent corrosion resistance, heat resistance and good glossiness; besides, peeling and cracking after long-time coating are avoided, a long-acting protective effect on the steel structure is achieved, loss caused by corrosion to the steel structure is reduced, and an extensive popularization and application value is further achieved.

Description

technical field [0001] The invention relates to the field of paints, in particular to a special modified cashew nut shell oil resin anti-corrosion finish paint for steel structures and a preparation method thereof. Background technique [0002] The steel structure engineering technology is mainly made of steel, which is composed of steel beams, steel columns, steel trusses and other components made of section steel and steel plates; the structure connected by welds, bolts or rivets between components or parts is the main structure. One of the types of architectural structures. The steel structure is exposed to the outdoors for a long time and is easily corroded. Therefore, it needs to be coated with paint to protect the steel structure and prolong the service life of the steel structure. [0003] According to the type of base material, steel structure paints include alkyd paint, amino paint, epoxy paint, polyurethane paint, acrylic paint, etc. The topcoat is a one-componen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D161/14C09D5/08C09D7/61C09D7/62
CPCC08K3/04C08K3/22C08K3/26C08K3/34C08K3/346C08K3/36C08K9/04C08K13/06C08K2003/2241C08K2003/265C09D5/08C09D5/18C09D7/61C09D7/62C09D161/14
Inventor 王保军
Owner ANHUI XINDALU SPECIAL PAINT CO LTD