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Environment-friendly polyurethane foaming mixed material for tyre and preparation method thereof

A polyurethane and environmentally friendly technology, applied in the field of polyurethane, can solve the problems of thin skin and poor performance, and achieve the effect of bright surface, good skinning and cost reduction

Active Publication Date: 2015-12-16
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with normal physical foaming agent (141b), water-foamed products also have obvious disadvantages: thin skin and poor performance

Method used

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  • Environment-friendly polyurethane foaming mixed material for tyre and preparation method thereof
  • Environment-friendly polyurethane foaming mixed material for tyre and preparation method thereof
  • Environment-friendly polyurethane foaming mixed material for tyre and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Component A: Weigh 90Kg of EP-330NG and POP36 / 2810Kg and put them into the reactor for stirring, then add 7Kg of 1,4-butanediol, 13Kg of ethylene glycol, 1.0kg of glycerin, A-331.5Kg, AK-77030.2Kg , DC-1930.2Kg, water 0.5Kg. Stir at 30°C for 1 hour, mix thoroughly and evenly, store in a sealed container, and set aside.

[0037] Component B: Weigh 10Kg of PE-2420 and place it in a kettle, stir and heat up to 100°C, dehydrate and degas under vacuum for 2 hours. Then cool down to 40°C, start stirring and add 30Kg of 4,4'-diphenylmethane diisocyanate, 3Kg of carbodiimide modified MDI, slowly raise the temperature to 85°C, and keep the temperature for 1.5 hours. Stir for 20 minutes, take a sample for inspection, flush N after passing the test 2 Unload, spare.

[0038] When in use, maintain the temperature of materials A and B at 35-40°C, pour components A and B into a dynamic tire mold with a mass ratio of 100:94, mold temperature is 50-55°C, and open the mold in 3 minute...

Embodiment 2

[0040] Component A: Weigh EP360090Kg and POP36 / 2810Kg respectively and put them into the reactor for stirring, then add propylene glycol 14Kg, ethylene glycol 6Kg, diethanolamine 0.5kg, A-10.5kg, A-33:0.8Kg, CS-120.05kg , AK-77030.2Kg, DC60700.2Kg, water 0.6Kg. Stir at 30°C for 2 hours, mix thoroughly and evenly, store in a sealed container, and set aside.

[0041] Component B: Weigh CMA-24415Kg and place it in a kettle, stir and heat up to 90°C, dehydrate and degas under vacuum for 3 hours. Then cool down to 40°C, start stirring and add 30Kg of 4,4'-diphenylmethane diisocyanate, 10Kg of carbodiimide modified MDI, slowly raise the temperature to 85°C, and keep the temperature for 1.5 hours. Stir for 20 minutes, take a sample for inspection, flush N after passing the test 2 Unload, spare.

[0042] When in use, maintain the temperature of materials A and B at 35-40°C, pour components A and B into a dynamic tire mold with a mass ratio of 100:92, mold temperature is 50-55°C, an...

Embodiment 3

[0044] Component A: Weigh EP-330NG80Kg and POP93 / 2820Kg respectively and put them into the reactor for stirring, then add 1,4-butanediol 7Kg, ethylene glycol 6Kg, triethanolamine 1.5kg, A-331.5Kg, AK-77030.3 Kg, DC60700.3Kg, water 0.5Kg. Stir at 30°C for 1 hour, mix thoroughly and evenly, store in a sealed container, and set aside.

[0045] Component B: Weigh 10Kg of PE-2420 and place it in a kettle, stir and heat up to 95°C, dehydrate and degas under vacuum for 2.5 hours. Then cool down to 40°C, start stirring and add 30Kg of 4,4'-diphenylmethane diisocyanate, 10Kg of carbodiimide-modified MDI, slowly raise the temperature to 82°C, and keep warm for 1.5 hours. Stir for 20 minutes, take a sample for inspection, flush N after passing the test2 Unload, spare.

[0046] When in use, maintain the temperature of materials A and B at 35-40°C, pour components A and B into a dynamic tire mold with a mass ratio of 100:93, mold temperature 50-55°C, and open the mold in 3 minutes , aft...

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Abstract

The invention specifically relates to an environment-friendly polyurethane foaming mixed material for a tyre and a preparation method thereof, belonging to the technical field of polyurethane. The mixed material is prepared by mixing a component A and a component B according to a mass ratio of 100: 85-105. The component A is prepared from polyether polyol, polymer polyol, a chain extender, a cross-linking agent, a bubble stabilizing agent, a foaming agent and a catalyst; and the component B is a polyester polyol modified isocyanate component and is prepared from polyester polyol, isocyanate and a storage stabilizing agent. Compared with the prior art, the invention has the following advantages: the foaming agent is water, so environmental protection is realized, cost for a physical foaming agent is saved, and preparation cost is greatly reduced. The environment-friendly polyurethane foamed tyre prepared in the invention has good skinning performance and a shiny surface while meeting the requirement of hardness. The mixed material can be used for production of normally foamed tyres and is an ideal substitute material for tyre production. The invention also provides a preparation method for the mixed material. The preparation method is reasonable in process.

Description

technical field [0001] The invention belongs to the technical field of polyurethane, and in particular relates to an environment-friendly polyurethane foam tire compound and a preparation method thereof. Background technique [0002] Polyurethane foam tires are more and more accepted by everyone because of their good wear resistance, excellent acid and alkali resistance and needle stick resistance. At present, it is widely used in cargo carts, baby carriages, slow electric vehicles and other fields. [0003] Patent CN102250313A reports a self-skinning microcellular elastomer composition for polyurethane foam tires. The polyurethane foam tires prepared by this invention have excellent mechanical properties, good resilience, excellent hydrolysis resistance and mold resistance sex. However, the foaming agent it uses is a physical foaming agent—HCFC-141b, which contains chlorine atoms, which has a destructive effect on the ozone layer. Developed countries have banned the use ...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/48C08G18/63C08G18/42C08G18/32C08J9/08
CPCC08G18/3203C08G18/3271C08G18/42C08G18/4825C08G18/4829C08G18/632C08G18/6677C08G18/6688C08J9/08C08J2203/02C08J2375/06C08J2375/08C08G2110/0033C08G2110/0066C08G2110/0083
Inventor 孙清峰甘经虎王翠王会栾森
Owner SHANDONG INOV POLYURETHANE
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