Wear-resistant and aging-resistant polyurethane resin and preparation method thereof

A polyurethane resin and anti-aging technology, applied in the field of polyurethane and its production equipment, can solve the problems of poor wear resistance, reduced service life, and poor aging resistance of polyurethane resin, so as to reduce labor intensity, improve production efficiency, and ensure quality. Effect

Active Publication Date: 2020-12-22
JIAXING HEXIN CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But existing nitrogen filling device has the following problems: 1, when using, it is inconvenient to fix it, so that when using, because of shaking, normal use is affected; 2, when using, there is no When the amount of nitrogen in the nitrogen bottle is insufficient, the device needs to be stopped for replacement before it can continue to be used
However, the existing high-viscosity pumps have the following problems: 1. The existing high-viscosity pumps are too complicated to be disassembled as a whole, which is not convenient for transportation and quick maintenance, and reduces the overall use efficiency; 2. The existing high-viscosity pumps High-viscosity pumps have low overall corrosion resistance, wear resistance and high temperature resistance, so they are prone to damage and reduce the overall service life
[0011] 1. The wear r

Method used

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  • Wear-resistant and aging-resistant polyurethane resin and preparation method thereof
  • Wear-resistant and aging-resistant polyurethane resin and preparation method thereof
  • Wear-resistant and aging-resistant polyurethane resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] A wear-resistant and aging-resistant polyurethane resin, made of the following raw materials in parts by weight: 1,6-hexanediol polyadipate diol: 10-15 parts, polycarbonate diol: 12-18 parts , 1,6-hexanediol: 3-5 parts, trimethylolpropane: 2-4 parts, hexamethylene diisocyanate: 8-10 parts, antioxidant: 0.35-0.55 parts, organic bismuth catalyst: 0.15 to 0.25 parts, isophorone diamine: 0.5 to 0.8 parts, KH-560: 0.15 to 0.25 parts, solvent: 45 to 75 parts; the hexamethylene diisocyanate is DesmodurN 3300A from Bayer Germany and Germany The mixture of Bayer's Desmodur BL3175A has a mass ratio of 1:1.8-2.1; the solvent is a mixture of dimethylformamide and acetone, and the mass ratio of the two is 1:2-4.

[0107] The present invention also provides a method for preparing the wear-resistant and aging-resistant polyurethane resin, which uses a reaction system for polyurethane production to carry out continuous production and preparation, including the following steps:

[0108...

Embodiment 2

[0116] A wear-resistant and aging-resistant polyurethane resin, made of the following raw materials in parts by weight: 1,6-hexanediol polyadipate diol: 10 parts, polycarbonate diol: 12 parts, 1,6 - Hexylene glycol: 3 parts, trimethylolpropane: 2 parts, hexamethylene diisocyanate: 8 parts, antioxidant: 0.35 parts, organic bismuth catalyst: 0.15 parts, isophorone diamine: 0.5 parts , KH-560: 0.15 parts, solvent: 45 parts; the hexamethylene diisocyanate is a mixture of DesmodurN 3300A of Bayer Germany and Desmodur BL3175A of Bayer Germany, and the mass ratio of the two is 1:1.8; The solvent is a mixture of dimethylformamide and acetone, and the mass ratio of the two is 1:2.

[0117] In this embodiment, the preparation method of the wear-resistant and aging-resistant polyurethane resin adopts a reaction system for polyurethane production for continuous production and preparation, including the following steps:

[0118] 1) each raw material of the wear-resistant and aging-resista...

Embodiment 3

[0166] The difference from Example 2 is that a wear-resistant and aging-resistant polyurethane resin is made of the following raw materials in parts by weight: poly-1,6-hexanediol adipate diol: 15 parts, polycarbonate binary Alcohol: 18 parts, 1,6-hexanediol: 5 parts, trimethylolpropane: 4 parts, hexamethylene diisocyanate: 10 parts, antioxidant: 0.55 parts, organic bismuth catalyst: 0.25 parts, iso Phornediamine: 0.8 parts, KH-560: 0.25 parts, solvent: 75 parts; the hexamethylene diisocyanate is a mixture of Desmodur N3300A of Bayer Germany and Desmodur BL3175A of Bayer Germany, the mass ratio of the two 1:2.1; the solvent is a mixture of dimethylformamide and acetone, and the mass ratio of the two is 1:4.

[0167] In this embodiment, the preparation method of the wear-resistant and aging-resistant polyurethane resin adopts a reaction system for polyurethane production for continuous production and preparation, including the following steps:

[0168] 1) each raw material of ...

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PUM

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Abstract

The invention discloses a wear-resistant and aging-resistant polyurethane resin, wherein the polyurethane resin is prepared from the following raw materials in parts by weight: 10 to 15 parts of polyadipic acid 1,6-hexanediol ester glycol, 12 to 18 parts of polycarbonate diol, 3 to 5 parts of 1,6-hexanediol, 2 to 4 parts of trimethylolpropane, 8 to 10 parts of hexamethylene diisocyanate, 0.35 to 0.55 part of an antioxidant, 0.15 to 0.25 part of an organic bismuth catalyst, 0.5 to 0.8 part of isophorone diamine, 0.15 to 0.25 part of KH-560, and 45 to 75 parts of a solvent. The wear-resistant and aging-resistant polyurethane resin disclosed by the invention has the advantages of good wear resistance, high anti-aging yellowing grade, good anti-aging performance, good hydrolysis resistance andthe like. The wear-resistant and aging-resistant polyurethane resin can be directly coated on a textile fabric or a non-woven fabric to form a film, and the film has the advantages of good wear resistance, high anti-aging yellowing grade, good anti-aging performance, good wear resistance and the like; the textile fabric or non-woven fabric finished product coated with the coating also has good wear resistance, high anti-aging yellowing grade, good anti-aging performance, good hydrolysis resistance and the like.

Description

technical field [0001] The invention relates to the technical field of polyurethane and its production equipment, in particular to a wear-resistant and aging-resistant polyurethane resin and a preparation method thereof. Background technique [0002] The full name of polyurethane is polyurethane, a polymer compound. Polyurethane has two types: polyester type and polyether type. They can be made into polyurethane plastics (mainly foam plastics), polyurethane fibers (called spandex in China ), polyurethane rubber and elastomers. [0003] The main raw materials of polyurethane include diphenylmethane diisocyanate (MDI), toluene diisocyanate (TDI), and polypropylene glycol (PPG), all of which have become international commodities. The production technology and equipment of these raw materials are very complicated. [0004] Polyurethane resin is generally formed by the reaction of polyisocyanate and polyol containing active hydrogen atoms and groups. The reaction between the tw...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/42C08G18/44C08G18/32C08G18/12C08G18/08C08K5/5435
CPCC08G18/6651C08G18/4238C08G18/44C08G18/3206C08G18/12C08G18/08C08K5/5435C08G18/3234
Inventor 纪尚超石磊陈晓春陈海龙赵磊王伟晏雪生
Owner JIAXING HEXIN CHEM IND
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