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Antifriction polyurethane coating and preparing method thereof

A technology of polyurethane coating and weight ratio, applied in the field of coatings, can solve the problems of reducing the protection effect of the substrate, lack of friction-reducing polyurethane, and damage.

Active Publication Date: 2017-08-22
河南蓝翎环科防水材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The substrate often encounters serious friction during the process of handling and towing. However, the surface lubricity of traditional polyurethane coatings is poor, and it is easy to fall off and break when encountering friction, which reduces the protection effect on the substrate.
[0005] However, there are almost no friction-reducing polyurethanes reported in the current literature, so it is very necessary to study this kind of materials.

Method used

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  • Antifriction polyurethane coating and preparing method thereof
  • Antifriction polyurethane coating and preparing method thereof
  • Antifriction polyurethane coating and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A friction-reducing polyurethane coating composed of material A and curing agent in a weight ratio of 3:1.

[0026] The material A is composed of the following parts by weight:

[0027] Coconut diethanolamide 2, oleic acid 13, trimethylolpropane 10, polyamide wax powder 3, polycarbonate diol 120, tin butyl mercaptan 1, zinc ricinoleate 2, inorganic lubricating filler 20, Diacetone alcohol 10, hexamethyl cyclotrisiloxane 1, stabilizer 2, 2,2'-dibenzamidodiphenyl disulfide 4, isophorone diisocyanate 105, 2-methoxychloroethyl Alkane 0.5, Dichloroglyoxime 0.3.

[0028] The inorganic lubricating filler is a mixture of silicon micropowder and molybdenum disulfide with a weight ratio of 30:1.

[0029] The stabilizer is zinc stearate.

[0030] The preparation method of material A includes the following steps:

[0031] (1) Take the inorganic lubricating filler, add it to 14 times its weight in absolute ethanol, stir evenly, add trimethylolpropane, 2-methoxychloroethane 0.5, dichloroglyox...

Embodiment 2

[0040] An anti-friction polyurethane coating composed of material A and curing agent in a weight ratio of 2:1.

[0041] The material A is composed of the following parts by weight:

[0042] Coconut diethanolamide 1, oleic acid 10, trimethylolpropane 8, polyamide wax powder 2, polycarbonate diol 110, tin butyl mercaptan 0.3, zinc ricinoleate 1, inorganic lubricating filler 16, Diacetone alcohol 8, hexamethylcyclotrisiloxane 0.4, stabilizer 0.8, 2,2'-dibenzamidodiphenyl disulfide 3, isophorone diisocyanate 100, 2-methoxychloroethyl Alkane 0.5, Dichloroglyoxime 0.3.

[0043] The inorganic lubricating filler is a mixed composition of silicon micropowder and molybdenum disulfide with a weight ratio of 20:0.7.

[0044] The stabilizer is barium stearate.

[0045] The preparation method of material A includes the following steps:

[0046] (1) Take the inorganic lubricating filler, add it to 10 times its weight in absolute ethanol, stir evenly, add trimethylolpropane, 2-methoxychloroethane 0.5,...

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Abstract

The invention discloses an antifriction polyurethane coating and a preparing method thereof. The coating is prepared from a material A and a curing agent, wherein the weight ratio of the material A to the curing agent is (2-3):1. According to the antifriction polyurethane coating and the preparing method thereof, through an esterification reaction of oleic acid and trimethylolpropane, ester with good lubricating property is obtained; meanwhile inorganic lubricating stuffing is subjected to organification sufficiently, the dispersity between the inorganic lubricating stuffing and a polymer is modified, an effective synergistic lubrication effect is formed by the inorganic lubricating stuffing and the obtained lubricating ester, and the antifriction property of finished product coating is improved.

Description

Technical field [0001] The invention belongs to the field of coatings, and specifically relates to a friction-reducing polyurethane coating and a preparation method thereof. Background technique [0002] Polyurethane is a new organic polymer material, known as the "fifth largest plastic", because of its excellent performance, it is widely used in many areas of the national economy. Product application fields involve light industry, chemical industry, electronics, textiles, medical treatment, construction, building materials, automobiles, national defense, aerospace, aviation, etc. It is a widely used polymer material, mainly polyurethane foam, polyurethane elastomer, polyurethane waterproof material, Polyurethane coatings, polyurethane adhesives and polyurethane biomedical materials, etc. Polyurethane has good physical and mechanical properties, a wide range of hardness, high strength, wear resistance, oil resistance, chemical corrosion resistance, tear resistance, ozone resistan...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D177/00C09D7/12C08G18/80C08G18/44
CPCC08G18/44C08G18/8061C08K2003/3009C09D7/65C09D175/14C08L77/00C08K13/06C08K9/04C08K3/36C08K3/30C08K5/58
Inventor 段小宁张丽丽李平
Owner 河南蓝翎环科防水材料有限公司
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