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Preparation method of heat-resistant tire rubber material

A technology for rubber materials and tires, applied in the field of preparation of heat-resistant tire rubber materials, can solve problems such as shortened service life and thermal damage to rubber tires, and achieve the effects of low endogenous heat, reduced endogenous heat, and improved service life

Inactive Publication Date: 2019-07-12
CHANGZHOU DAAO NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a method for preparing a heat-resistant tire rubber material in view of the problems that the existing rubber tires will be thermally damaged and the service life will be greatly shortened

Method used

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  • Preparation method of heat-resistant tire rubber material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Dehydrate polyethylene adipate propylene glycol ester diol and 1,4-butanediol at a temperature of 110°C and a vacuum of 0.10kPa for 1 hour to obtain dehydrated product A and dehydrated product B; according to the mass ratio of 1 : 1 Mix 1,5-naphthalene diisocyanate and dehydrate A, stir at a temperature of 110°C and a stirring speed of 500r / min for 20min to obtain a mixture A, cool the mixture A to a temperature of 80°C, and continue stirring React for 1 hour to obtain mixture B; stir mixture B and dehydrated product B evenly according to the mass ratio of 10:1 to obtain mixture C; pour mixture C on a mold with a temperature of 110°C and place it in a vacuum vulcanizer. Vulcanize at 110°C for 2 hours to obtain sulfide, place the sulfide in an oven at 100°C for 6 hours, and cool to room temperature to obtain elastic material; weigh 20 parts of waste rubber in parts by weight powder, 1 part of elastic material, 1 part of acrylamide, 0.2 part of ammonium persulfate, 0.1 pa...

Embodiment 2

[0033] Dehydrate polyethylene adipate propylene glycol ester diol and 1,4-butanediol at a temperature of 115°C and a vacuum of 0.12kPa for 1 hour to obtain dehydrated product A and dehydrated product B; according to the mass ratio of 1 : 1 Mix 1,5-naphthalene diisocyanate and dehydrate A, stir at a temperature of 115°C and a stirring speed of 550r / min for 25min to obtain a mixture A, cool the mixture A to a temperature of 85°C, and continue stirring React for 1 hour to obtain mixture B; stir mixture B and dehydrated substance B evenly according to the mass ratio of 10:1 to obtain mixture C; pour mixture C on a mold with a temperature of 115°C and place it in a vacuum vulcanizer, Vulcanize at 115°C for 3 hours to obtain the sulfide, place the sulfide in an oven at 105°C for 7 hours, and cool to room temperature to obtain the elastic material; weigh 25 parts of waste rubber in parts by weight powder, 3 parts of elastic material, 3 parts of acrylamide, 0.3 part of ammonium persul...

Embodiment 3

[0035] Dehydrate polyethylene adipate propylene glycol ester diol and 1,4-butanediol at a temperature of 120°C and a vacuum of 0.13kPa for 2 hours to obtain dehydrated product A and dehydrated product B; according to the mass ratio of 1 : 1 Mix 1,5-naphthalene diisocyanate and dehydrate A, stir at a temperature of 120°C and a stirring speed of 600r / min for 30min to obtain a mixture A, and when the mixture A is cooled to a temperature of 90°C, continue to stir React for 2 hours to obtain mixture B; stir mixture B and dehydrated substance B evenly according to the mass ratio of 10:1 to obtain mixture C; pour mixture C on a mold with a temperature of 120°C and place it in a vacuum vulcanizer, Vulcanize at 120°C for 4 hours to obtain the sulfide, place the sulfide in an oven at 110°C for 8 hours, and cool to room temperature to obtain the elastic material; weigh 30 parts of waste rubber in parts by weight powder, 5 parts of elastic material, 5 parts of acrylamide, 0.5 part of ammo...

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Abstract

The invention relates to a preparation method of a heat-resistant tire rubber material, and belongs to the technical field of rubber materials. Waste rubber powder, a polyurethane elastic material andacrylamide are subjected to graft modification, and intercalated between nano clay layers, carbon black is used as reinforcing filler, and the heat-resistant tire rubber material is prepared in combination with additives such as an antiager and a vulcanizing agent; a polyurethane elastic material is prepared from 1,5-naphthalene diisocyanate as a hard segment, polyester polyol as a soft segment and small molecular polyol as a chain extender. The prepared polyurethane elastic material has good dynamic fatigue performance and wear resistance, so that the modified waste rubber powder has good heat resistance, impact resistance and mechanical properties. Therefore, the prepared tire rubber material has low endogenous heat, good heat resistance, high hardness and good rebound resilience and wear resistance, and in the operation process, the heat loss is reduced, so that the service life is greatly prolonged. The prepared tire rubber material has good impact resistance and mechanical properties.

Description

technical field [0001] The invention relates to a preparation method of a heat-resistant tire rubber material, which belongs to the technical field of rubber materials. Background technique [0002] Green tires are prepared by changing the formula and tire pattern, using white carbon black as the main filler, which has good fuel saving performance, excellent wet skid resistance, and significantly reduced noise pollution and pollution emissions. [0003] Green fuel-efficient tires require excellent dynamic performance, which needs to be achieved from the molecular chain structure of the rubber matrix and the promotion of good dispersion of fillers in the rubber matrix. Compared with emulsion polystyrene butadiene rubber, solution polystyrene butadiene rubber has excellent wear resistance, hysteresis loss, and dynamic heat generation. By using silica modified with silane coupling agent as filler reinforcement, rubber composite materials can be made obtain good dynamic perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F279/00C08F283/00C08K3/34C08K3/04C08K3/06C08K13/02
CPCC08F279/00C08F283/006C08K3/04C08K3/06C08K3/346C08K13/02
Inventor 黄宇成
Owner CHANGZHOU DAAO NEW MATERIAL TECH CO LTD
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