Self-repairing rubber

A self-healing and rubber technology, applied in the field of rubber, can solve the problems of low self-healing efficiency, poor anti-puncture effect, and potential safety hazards, and achieve the effects of improving self-healing efficiency, strong anti-puncture ability, and reducing production costs

Active Publication Date: 2020-11-03
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the risk of being punctured by nails or other sharp objects in the existing tire rubber, which will cause great safety hazards after being punctured, the existing

Method used

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  • Self-repairing rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Process this self-healing rubber according to the following components: 95 parts of chlorinated butyl rubber, 140 parts of 1400 molecular weight polyisobutylene, 4 parts of calcium oxide, 3 parts of stearic acid, 3 parts of anti-aging agent (445), 0.15 parts of sulfur, Accelerator DZ 0.1 part, accelerator TT 0.06 part.

[0049] A mixing process of chlorinated butyl rubber and polyisobutylene was adopted, using a two-roll mill, the temperature was set at 50°C, the speed coefficient of the front roll was 12, and the speed coefficient of the rear roll was 10. The bromobutyl rubber was Two-roll mill processing for 1min, adding one-third of low molecular weight polyisobutylene for processing for 10min, adding calcium oxide and stearic acid for processing for 1min, adding one-third of low molecular weight polyisobutylene for processing for 10min, adding sulfur accelerator Process DZ and sulfur accelerator TT for 1 minute, add anti-aging agent (445) for 1 minute, add the last ...

Embodiment 2

[0053] Process this self-healing rubber according to the following components: 90 parts of bromobutyl rubber, 145 parts of 1400 molecular weight polyisobutylene, 5 parts of calcium oxide, 3 parts of stearic acid, 3 parts of anti-aging agent (445), 0.15 parts of sulfur, Accelerator DZ 0.1 part, accelerator TT 0.06 part.

[0054] A mixing process of chlorinated butyl rubber and polyisobutylene was adopted, using a two-roll mill, the temperature was set at 50°C, the speed coefficient of the front roll was 12, and the speed coefficient of the rear roll was 10. The bromobutyl rubber was Two-roll mill processing for 1min, adding one-third of low molecular weight polyisobutylene for processing for 10min, adding calcium oxide and stearic acid for processing for 1min, adding one-third of low molecular weight polyisobutylene for processing for 10min, adding sulfur accelerator Process DZ and sulfur accelerator TT for 1 minute, add anti-aging agent (445) for 1 minute, add the last third o...

Embodiment 3

[0058] Process this self-healing rubber according to the following components: 90 parts of bromobutyl rubber, 145 parts of 2400 molecular weight polyisobutylene, 5 parts of zinc oxide, 3 parts of stearic acid, 3 parts of anti-aging agent (445), 0.15 parts of sulfur, Accelerator PZ 0.1 part, accelerator TT 0.033 part.

[0059] A mixing process of bromobutyl rubber and polyisobutylene was adopted, a two-roll mill was used, the temperature was set at 45°C, the speed coefficient of the front roll was 12, and the speed coefficient of the rear roll was 10. The bromobutyl rubber was Two-roll mill processing for 1min, adding one-third of low molecular weight polyisobutylene for processing for 8min, adding zinc oxide and stearic acid for processing for 1min, adding one-third of low molecular weight polyisobutylene for processing for 8min, adding sulfur accelerator Process PZ and sulfur accelerator TT for 1 minute, add anti-aging agent (445) for 1 minute, add the last third of polyisobu...

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Abstract

The invention belongs to the field of rubber, and particularly relates to self-repairing rubber. The self-repairing rubber comprises the following components in parts by weight: 60-120 parts of butylrubber, 140-160 parts of polyisobutene, 5-15 parts of an additive, 0.1-0.5 part of sulfur and 0.1-0.2 part of a sulfur accelerator. According to the method, the self-repairing efficiency of the rubbercan be effectively improved, and the damaged part can be repaired within a plurality of seconds; the puncture-proof capacity is high, and under the condition that the puncture depth is far larger than the material thickness by 200%, the rubber can still be prevented from being punctured; in addition, the preparation method is simple and efficient and low in energy consumption.

Description

technical field [0001] The invention belongs to the field of rubber, in particular to a self-repairing rubber. Background technique [0002] Under the action of external mechanical force, the integrity of material structure and performance will be damaged to varying degrees. At this time, self-healing polymer materials can use a certain principle to make up for the defects of cracks, and complete healing without the assistance of external forces. The self-healing material can be used in the anti-leakage technical field of tires. [0003] When the tire is in use, there is a risk of being punctured by nails or other sharp objects. The punctured objects may fall off during the high-speed driving of the vehicle, causing the tire to leak continuously. At this time, in order to ensure safety, it is necessary to timely repair the tire. Make repairs to avoid accidents. [0004] Chinese patent CN104962041 discloses a self-repairing polymer memory material and its use method. Its co...

Claims

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Application Information

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IPC IPC(8): C08L23/20C08L23/28C08K13/02C08K3/22C08K5/09C08K3/06
CPCC08L23/22C08L2205/02C08L2201/08C08K2003/2206C08K2003/2296C08L23/283C08K13/02C08K3/22C08K5/09C08K3/06
Inventor 陈玉龙赵卓啸
Owner ZHEJIANG UNIV OF TECH
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