Polyurethane resin for tire and preparation method thereof

A technology of polyurethane resin and resin, applied in the field of polyurethane resin for tires and its preparation, can solve the problem of high production cost

Active Publication Date: 2021-06-08
ZHEJIANG HUAFON NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For polyurethane tire manufacturers, it is necessary to be equipped with raw materials of different types and specifications to meet the production of tires with different performance requirements, and each time the raw materials are replaced, the proofing machine and the material tank need to be cleaned, and the production cost is high.

Method used

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  • Polyurethane resin for tire and preparation method thereof
  • Polyurethane resin for tire and preparation method thereof
  • Polyurethane resin for tire and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The polyoxyethylene-oxypropylene trihydric alcohol of 221.7kg (number-average molecular weight is 6000), the styrene graft copolymerized polyoxyethylene-oxypropylene trihydric alcohol of 55.4kg (number-average molecular weight is 6000), 1.39kg ethylene glycol, The ethylene glycol solution of the triethylenediamine of 0.22kg, the solution that 0.89kg of 70wt% bis (dimethylaminoethyl) ether and 30wt% dipropylene glycol is made into, 2.77kg water and 0.28kg organosilicon homogeneous foam After the agent was reacted at 50°C for 2.5h, the temperature was lowered to 40°C and mixed for 1.5h to obtain the polyurethane resin component A.

[0056] With the diphenylmethane diisocyanate of 45.4kg, the carbodiimide modified diphenylmethane diisocyanate of 15.1kg, the polyethylene adipate butylene glycol ester diol of 0.76kg (the number average molecular weight is 1000) React with 0.0015kg of phosphoric acid at 65°C for 3 hours to obtain component B1 of polyurethane resin.

[0057] ...

Embodiment 2

[0060] The polyoxyethylene-oxypropylene trihydric alcohol of 221.7kg (number-average molecular weight is 6000), the styrene graft copolymerized polyoxyethylene-oxypropylene trihydric alcohol of 55.4kg (number-average molecular weight is 6000), 1.39kg ethylene glycol, The ethylene glycol solution of the triethylenediamine of 0.22kg, the solution that 0.89kg of 70wt% bis (dimethylaminoethyl) ether and 30wt% dipropylene glycol is made into, 2.77kg water and 0.28kg organosilicon homogeneous foam After the agent was reacted at 50°C for 2.5h, the temperature was lowered to 40°C and mixed for 1.5h to obtain the polyurethane resin component A.

[0061] With the diphenylmethane diisocyanate of 7.46kg, the carbodiimide modified diphenylmethane diisocyanate of 2.48kg, the polyethylene adipate butylene glycol ester diol of 0.12kg (the number average molecular weight is 1000) React with 0.00032kg of phosphoric acid at 65°C for 3 hours to obtain component B1 of polyurethane resin.

[0062] R...

Embodiment 3

[0065] The polyoxyethylene-oxypropylene trihydric alcohol of 101.0kg (number-average molecular weight is 10000), the acrylonitrile graft copolymerized polyoxyethylene-oxypropylene trihydric alcohol of 101.0kg (number-average molecular weight is 10000), 2.02kg ethylene glycol, The ethylene glycol solution of the triethylenediamine of 1.01kg, the solution that the bis(dimethylaminoethyl) ether of 1.01kg 70wt% and 30wt% dipropylene glycol is made into, 3.03kg water and 4.04kg organosilicon bubble evenly After the agent was reacted at 60°C for 1.5h, the temperature was lowered to 45°C and mixed for 1.0h to obtain the polyurethane resin component A.

[0066] With the diphenylmethane diisocyanate of 48.3g, the carbodiimide modified diphenylmethane diisocyanate of 12.1kg, the polyethylene adipate butanediol ester diol of 12.1kg (the number average molecular weight is 2000) React with 0.002kg of phosphoric acid at 75°C for 2 hours to obtain component B1 of polyurethane resin.

[0067...

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Abstract

The invention discloses a polyurethane for tires and a preparation method thereof. The resin comprises a resin A component, a resin B1 component and a resin B2 component, and the resin A component includes polypolyol A, a crosslinking agent, a catalyst, a foaming agent and foam stabilizer; resin B1 includes 100 parts of isocyanate B1, 10-40 parts of polypolyol B1, 0.002-0.010 parts of side reaction inhibitor, resin B2 includes 100 parts of isocyanate B2, 50-100 parts of polypolyol B2, Reaction inhibitor 0.002~0.010 parts, isocyanate B1 is diphenylmethane diisocyanate, carbodiimide modified diphenylmethane diisocyanate, toluene diisocyanate or naphthalene diisocyanate, polypolyol B1 is polyadipate-based polymer Ester polyol, isocyanate B2 is diphenylmethane diisocyanate, carbodiimide modified diphenylmethane diisocyanate, toluene diisocyanate or naphthalene diisocyanate, polypolyol B2 is polyadipate polyester polyol or Polyterephthalic acid-based polyester polyol. The invention can prepare polyurethane tires with different hardness.

Description

technical field [0001] The invention relates to a polyurethane resin for tires and a preparation method thereof. Background technique [0002] The full name of polyurethane is polyurethane, which is a general term for macromolecular compounds containing repeated urethane groups on the main chain. It is a polymer compound obtained by the interaction of binary or polyvalent organic isocyanates and polyol compounds. [0003] The resin used to produce polyurethane tires is generally a two-component raw material - polyol mixture and prepolymer (referred to as AB material / AB component or black and white material). [0004] Polyurethane tires with different performance requirements require different types of AB materials to be used together. For polyurethane tire manufacturers, it is necessary to be equipped with various types of raw materials of different specifications to meet the production of tires with different performance requirements, and each time the raw materials are re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/76C08G18/79C08G18/66C08G18/65C08G18/48C08G18/42C08G18/63C08G18/32C08J9/08
CPCC08G18/3206C08G18/4018C08G18/4072C08G18/4238C08G18/4837C08G18/632C08G18/6511C08G18/6674C08G18/721C08G18/7671C08G18/797C08J9/08C08J2203/02C08J2375/08C08G2110/0083
Inventor 赵叶宝林剑薛晓金吴章兴章芬成蔡武
Owner ZHEJIANG HUAFON NEW MATERIALS CO LTD
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