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Thermosetting corrosion-resistant and wear-resistant coating material as well as preparation method and use method thereof

A wear-resistant coating and corrosion-resistant technology, applied in anti-corrosion coatings, coatings, unspecified rubber coatings, etc., can solve problems such as poor corrosion resistance, achieve excellent hydrochloric acid resistance, improve corrosion resistance and coating The effect of strong bond strength and pressure resistance

Active Publication Date: 2020-12-29
北京博研中能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention aims to solve the technical problem of poor corrosion resistance, especially acid resistance and strength of metal coatings in the prior art, and provides a thermosetting corrosion-resistant and wear-resistant coating material and its preparation and use methods. The ratio of resin and specific filler and coupling agent is used to improve the performance of the coating

Method used

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  • Thermosetting corrosion-resistant and wear-resistant coating material as well as preparation method and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A thermosetting corrosion-resistant and wear-resistant coating material is prepared from the following raw materials in parts by weight:

[0048] Modified polytetrafluoroethylene powder 40g, modified phenolic resin 31g, nano-core-shell rubber fiber 5g, modified nano-silica (coupling agent addition is 4.5%) 10g, fly ash 4g, kaolin 2g, defoaming Agent 1g, carbon fiber 5g; mix the above powders.

[0049] The specific preparation process of the coating is as follows:

[0050] S1, the silicic acid treatment solution is made of H 2 SiO 4 and SiF 4 Mix according to the ratio of 4:1, add the silicic acid treatment solution and polytetrafluoroethylene into the container at the same time, and perform ultrasonic treatment; finally obtain the silicic acid modified polytetrafluoroethylene.

[0051] S2. Put the polyurethane and the phenolic resin into the reaction kettle for heating, add acetone, and then stir for 20 minutes, so that the terminal isocyanate group in the polyureth...

Embodiment 2

[0061] Modified polytetrafluoroethylene powder 40g, modified phenolic resin 31g, nano-core-shell rubber fiber 5g, modified nano-silica (coupling agent addition is 6%) 10g, fly ash 4g, kaolin 2g, defoaming Agent 1g, carbon fiber 5g; mix the above powders.

[0062] The specific preparation process of the coating is as follows:

[0063] S1, the silicic acid treatment solution is made of H 2 SiO 4 and SiF 4 Mix according to the ratio of 4:1, add the silicic acid treatment solution and polytetrafluoroethylene into the container at the same time, and perform ultrasonic treatment; finally obtain the silicic acid modified polytetrafluoroethylene.

[0064] S2. Put the polyurethane and the phenolic resin into the reaction kettle for heating, add acetone, and then stir for 20 minutes, so that the terminal isocyanate group in the polyurethane prepolymer reacts with the methylol group in the phenolic formaldehyde to obtain a polyurethane-modified phenolic resin.

[0065] S3. Add ethano...

Embodiment 3

[0074] Modified polytetrafluoroethylene powder 50g, modified phenolic resin 31g, nano-core-shell rubber fiber 8g, modified nano-silica (coupling agent addition is 6%) 15g, fly ash 2g, kaolin 3g, defoaming Agent 1g, carbon fiber 5g; mix the above powders.

[0075] The specific preparation process of the coating is as follows:

[0076] S1, the silicic acid treatment solution is made of H 2 SiO 4 and SiF 4 Mix according to the ratio of 4:1, add the silicic acid treatment solution and polytetrafluoroethylene into the container at the same time, and perform ultrasonic treatment; finally obtain the silicic acid modified polytetrafluoroethylene.

[0077] S2. Put the polyurethane and the phenolic resin into the reaction kettle for heating, add acetone, and then stir for 20 minutes, so that the terminal isocyanate group in the polyurethane prepolymer reacts with the methylol group in the phenolic formaldehyde to obtain a polyurethane-modified phenolic resin.

[0078] S3. Add ethano...

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Abstract

The invention discloses a thermosetting corrosion-resistant and wear-resistant coating material as well as preparation and use methods thereof, and belongs to the field of corrosion protection. The coating material comprises polytetrafluoroethylene, phenolic resin, a filler and a coupling agent, the filler comprises silicon dioxide, and the coupling agent is a fluorine-containing coupling agent and / or an epoxypropoxy-containing coupling agent; and the coupling agent is attached to the periphery of the filler, and the coupling agent distributed on the periphery of the filler accounts for 35-80%of the total amount of the coupling agent. The coating material is prepared through coating raw material pretreatment, coating material preparation, coating material coating and drying. The coating material provided by the invention has excellent high-temperature resistance, acid resistance, alkali resistance and wear resistance, can effectively resist chloride ion erosion, and effectively protects the service safety of a matrix material.

Description

technical field [0001] The invention belongs to the field of corrosion and protection, and more specifically, relates to a thermosetting corrosion-resistant and wear-resistant coating material and its preparation and use methods. Background technique [0002] The polymer matrix plays a vital role in composite materials. The polymer matrix can be used as the skeleton of the coating, and the polymer matrix can effectively bond the substrate, so that the coating material and the matrix can achieve excellent bonding. In addition, due to the high elasticity of the polymer material, it can absorb part of the impact energy and slow down the damage to the matrix caused by external impact. Polymer materials have excellent corrosion resistance, especially in conductive media, because of their insulation, the coating is not affected by electrochemical corrosion. [0003] Traditional organic coatings have low heat resistance and poor acid resistance, making them difficult to apply in e...

Claims

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Application Information

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IPC IPC(8): C09D127/18C09D161/14C09D121/00C09D5/08C09D7/62C09D7/61B05D7/16B05D3/02B05D1/02
CPCC09D127/18C09D5/08C09D7/61C09D7/70C09D7/62B05D7/16B05D1/02B05D3/0236B05D3/0272C08L2205/03C08L2207/53C08L2205/16C08K2201/011C08K2201/003C08K2201/014B05D2202/25C08L61/14C08L21/00C08K13/06C08K3/34C08K7/06C08K9/06C08K3/36C08K7/26C08K3/346
Inventor 杨斌
Owner 北京博研中能科技有限公司
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