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Impact-resistant interpenetrating network anticorrosive paint

An interpenetrating network, anti-corrosion coating technology, applied in anti-corrosion coatings, fire-retardant coatings, polyamide coatings, etc., can solve the problems of water resistance, easy yellowing, poor gloss and color retention, etc.

Inactive Publication Date: 2020-10-23
ANHUI XINDALU SPECIAL PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be widely used in anti-corrosion engineering. At present, most interpenetrating network coatings on the market use polyurethane and epoxy resin components to form interpenetrating networks. This similar coating is a thread-through network formed by interpenetrating plastic networks and rubber networks. However, Polyurethane has poor gloss and color retention, is prone to yellowing, and is difficult to repair after the paint film is damaged. The isocyanate and diformaldehyde contained in it are irritating to the human body; isocyanate is very active and sensitive to moisture, moisture and alcohols, and high moisture in the paint will Seriously affect its performance, not water-resistant, prone to defects such as bubbles, pinholes or discoloration on the paint film, poor weather resistance of epoxy components, easy chalking in outdoor coating, and poor fullness of the paint film. Those skilled in the art urgently need to develop a Preparation method of impact-resistant interpenetrating network anti-corrosion coating to meet existing use needs and market demands

Method used

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  • Impact-resistant interpenetrating network anticorrosive paint
  • Impact-resistant interpenetrating network anticorrosive paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The coating includes an independently packaged paint base and an independently packaged curing agent slurry, and the coating is generated by mixing and stirring the two before use, wherein the mixing ratio of the independently packaged paint base and the independently packaged curing agent slurry is : Use after mixing according to the weight ratio of the paint base and the curing agent slurry of 10:0.9. The preparation method of the millbase comprises the following steps: (1) Preparation of modified benzoxazine: 12.7 parts of cardanol, 33 parts of formaldehyde aqueous solution with a mass fraction of 24%, 13.4 parts of 2,6-diisopropylaniline, 0.5 parts of lignin and 37 parts of toluene were placed in a reaction kettle with a condenser and a thermometer, and the electromagnetic stirring was carried out at room temperature for 15 minutes to fully mix, and the reaction was stirred at 80°C for 4 hours, and the product was dispersed in hexadioxide. Wash with ~6% ammonia solu...

Embodiment 2

[0024]The paint includes an independently packaged paint base and an independently packaged curing agent slurry, and the paint is generated by mixing and stirring the two before use, wherein the paint base is used as a paint material alone, according to the paint base 1. The weight ratio of the curing agent slurry is 10:0.8. Spray the curing agent slurry evenly on the surface of the paint.

[0025] The preparation method of the millbase comprises the following steps: (1) Preparation of modified benzoxazine: 10.4 parts of cardanol, 25-33 parts of formaldehyde aqueous solution with a mass fraction of 22%, 12.5 parts of 2,6-diisopropyl Aniline, 0.4 parts of lignin, and 33 parts of toluene are placed in a reaction kettle with a condenser and a thermometer, and electromagnetically stirred at room temperature for 10 minutes to make them fully mixed, stirred and reacted at 75°C for 2 to 4 hours, and the product is dispersed in hexadioxide , washed with 4% ammonia solution, then washe...

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Abstract

The invention discloses an impact-resistant interpenetrating network anticorrosive paint. The invention belongs to the technical field of anticorrosive paint. According to the invention, hydroxymethylpolyamide and benzoxazine resin are blended; then, dispersion is realized through liquid polyamide, and the impact-resistant interpenetrating network anticorrosive paint is prepared after a curing agent treatment reaction. The impact-resistant interpenetrating network anticorrosive paint has the advantages of excellent adhesion, toughness, compactness, strong penetration resistance, excellent resistance to corrosion of various chemicals, excellent water resistance and salt water resistance, high modulus, high strength, good heat resistance, low water absorption, flame retardance and the like,does not release small molecules in the curing process, has low shrinkage, low water absorption, low dielectric property and the like, and has good processing and using performances.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, in particular to an impact-resistant interpenetrating network anticorrosion coating. Background technique [0002] Interpenetrating network anti-corrosion coating is a new type of anti-corrosion series coating, and it is also an interpenetrating network polymer that can produce the same effect formed by the interpenetrating network of rubber network and plastic network, also known as "polymer alloy". It has good performance, stable technology, and good comprehensive performance. This product has excellent corrosion resistance and physical and mechanical properties to sulfuric acid, hydrochloric acid, phosphoric acid, salt water, caustic alkali, gasoline, etc. , Anticorrosion of buildings, metal and cement surfaces. It can be widely used in anti-corrosion engineering. At present, most interpenetrating network coatings on the market use polyurethane and epoxy resin components to form in...

Claims

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Application Information

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IPC IPC(8): C09D161/34C09D177/00C09D177/06C09D5/08C09D7/61C09D7/63C09D7/65C09D5/18
CPCC08L2201/02C08L2205/02C08L2205/025C08L2205/035C08L2205/04C09D5/08C09D5/18C09D161/34C09D7/61C09D7/63C09D7/65C08L61/34C08L77/00C08L77/06C08L79/02C08K13/02C08K5/13C08K5/378C08K3/04C08K3/34
Inventor 王保军拾振洪李海洋金传亮回留柱王家振
Owner ANHUI XINDALU SPECIAL PAINT CO LTD
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