Composite material for polyurethane inflation-free inner tube and preparation method thereof

A non-inflatable inner tube, polyurethane technology, applied in the field of polyurethane application, can solve the problems affecting tire support, unfavorable installation, etc., achieve the effect of preventing tire blowout, simple and efficient production process, excellent elasticity and cushioning performance

Inactive Publication Date: 2018-01-09
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Install the polyurethane inner tube into the rubber tire. The hardness of the polyurethane inner tube should be appropriate. If it is too hard, it is not conducive to installation, and if it is too soft, it will affect the support of the tire.

Method used

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  • Composite material for polyurethane inflation-free inner tube and preparation method thereof
  • Composite material for polyurethane inflation-free inner tube and preparation method thereof
  • Composite material for polyurethane inflation-free inner tube and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A component:

[0046] Weigh 100 parts of polytetrahydrofuran ether polyols (PTMG2000, BASF product) with an average functionality of 2 and a number average molecular weight of 2000, 8 parts of 1,4-butanediol, 0.2 parts of water, 0.6 parts of AK-7703, 0.9 parts Put ethylene glycol solution of triethylenediamine with a solid content of 33%, 0.03 part of dibutyltin dilaurate, and 0.35 part of CHINOX35 in a mixer, stir well, remove air bubbles in a vacuum, cool to 30-40°C and discharge, seal save.

[0047] B component:

[0048] With 60 parts of average functionality=2, polytetrahydrofuran polyol (PTMG2000, BASF product) of number average molecular weight=2000 and 55 parts of average functionality=3, the polyether polyol of number average molecular weight=6000 (KE-810, can Leah Polyether Co., Ltd.), and 30ppm of phosphoric acid were dehydrated under vacuum (-0.09MPa) at 110°C for 2 hours to ensure that the moisture content was less than 0.05%, then cooled to 50°C, added 85...

Embodiment 2

[0051] A component:

[0052] Take 90 parts of polyether polyols (10LD83E, Shandong Bluestar Dongda Chemical Co., Ltd.) with an average functionality of 3 and a number average molecular weight of 6000, 10 parts of POP40 (Shandong Bluestar Dongda Polyurethane Co., Ltd.) 14 parts, 1,4-butanediol, 0.35 parts of water, 0.6 parts of LK-221, 1 part of ethylene glycol solution of triethylenediamine with a solid content of 33%, 0.03 parts of dibutyltin dilaurate, 0.2 parts of CHINOX35 in a mixer , stir evenly, remove air bubbles in a vacuum, cool down to 30-40°C and discharge, and store in a sealed container.

[0053] B component:

[0054] 100 parts of polytetrahydrofuran ether polyol (PTMG2000, BASF product) with average functionality = 2, number average molecular weight = 2000 and 40ppm of phosphoric acid were dehydrated at 110°C for 2 hours under vacuum (-0.09MPa) to ensure that the moisture content was less than 0.05% , then lower the temperature to 50°C, add 120 parts of pure MDI,...

Embodiment 3

[0057] A component:

[0058] Take 80 parts of polytetrahydrofuran ether polyols (PTMG2000, South Korea Hyosung Chemical Co., Ltd.) with an average functionality of 2 and a number average molecular weight of 2000 respectively, and weigh 20 parts of polytetrahydrofuran ether polyols with an average functionality of 3 and a number average molecular weight of 6. Ether polyol (3600, Shandong Bluestar Dongda Chemical Co., Ltd.) 14 parts, 1,4-butanediol, 2 parts of ethylene glycol, 0.4 part of water, 0.6 part of LK-221, 0.6 part of three The ethylene glycol solution of ethylenediamine, 0.04 parts of dibutyltin dilaurate, and 0.3 parts of CHINOX35 are placed in a mixer, stirred evenly, vacuumed to remove air bubbles, cooled to 30-40°C and discharged, sealed for storage.

[0059] B component:

[0060] With 50 parts of average functionalities=2, polytetrahydrofuran ether polyol (PTMG2000, BASF product) of number-average molecular weight=2000 and 50 parts of average functionalities are ...

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Abstract

The invention relates to a composite material for a polyurethane inflation-free inner tube and a preparation method thereof, and belongs to the technical field of application of polyurethane. The composite material for the polyurethane inflation-free inner tube, provided by the invention, is prepared from a component A and a component B, wherein the weight percent ratio of the component A to the component B is 100 to (80 to 100); the component A is prepared from polyether polyol A, polymer polyol, a chain extender, a cross-linking agent, a foaming agent, a catalyst A, a catalyst B, a foam stabilizer and an antioxidant; the component B is prepared from modified isocyanate and a reaction inhibitor. The composite material for the polyurethane inflation-free inner tube, provided by the invention, is applied to bicycles, a flat tire problem is solved, and the service life is prolonged; the produced product has the advantages of good elasticity, good performance, good fatigue-resisting performance and the like. Meanwhile, the invention provides the preparation method which has the advantages of simplicity and feasibility, energy saving and consumption reduction.

Description

technical field [0001] The invention relates to a composite material for a polyurethane air-free inner tube and a preparation method thereof, belonging to the technical field of polyurethane applications. Background technique [0002] With the improvement of people's awareness of environmental protection, the idea of ​​advocating green travel has become more and more popular, and bicycles have been recognized by everyone as a convenient and efficient means of transportation. Especially shared bicycles are recognized by the public because of their speed, convenience and environmental protection. However, bicycles are generally placed outdoors under the sun, wind and rain, so the problem of tire blowout is a fatal blow to bicycles, and the inner tubes of non-inflatable tires came into being. [0003] Patent CN102785535 A relates to the manufacture of a non-inflatable inner tube, which is made of metal materials with high strength and good toughness or other composite material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/66C08G18/65C08G18/48C08G18/63C08G18/42C08G18/12C08G18/10
Inventor 代金辉孙清峰王翠甘经虎李海朝吴淑廷
Owner SHANDONG INOV POLYURETHANE
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