Method for judging tire under-sulfur damage or thermal degradation damage
The invention belongs to the field of tire production and detection, and relates to a tire under-sulfur damage or thermal degradation damage determination method, which comprises: obtaining a rubber material sample, freezing, crushing and grinding to prepare a uniform sample; extracting one part of...
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| creator | MA GUOHUA REN FUYUN ZENG HAIHUAN YANG WENZHEN SU CHUANG SHEN TENG HOU XIAOQIAN ZHANG XIAOJUN |
| description | The invention belongs to the field of tire production and detection, and relates to a tire under-sulfur damage or thermal degradation damage determination method, which comprises: obtaining a rubber material sample, freezing, crushing and grinding to prepare a uniform sample; extracting one part of the sample by using an extracting solution, testing the sulfur content of the unextracted sample to obtain the total sulfur content, and testing the sulfur content of the extracted sample to obtain the combined sulfur content; judging according to a test result and a formula that the combined sulfur ratio = each combined sulfur content/(the combined sulfur content of normal vulcanization-new rubber) * 100%, and when the combined sulfur ratio of the returned tire rubber is greater than or equal to 95%, determining that the returned tire rubber is normal vulcanization-thermal degradation rubber; when the combined sulfur ratio of the returned tire rubber is less than 95%, the tire rubber is under-sulfur-thermal degrad |
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extracting one part of the sample by using an extracting solution, testing the sulfur content of the unextracted sample to obtain the total sulfur content, and testing the sulfur content of the extracted sample to obtain the combined sulfur content; judging according to a test result and a formula that the combined sulfur ratio = each combined sulfur content/(the combined sulfur content of normal vulcanization-new rubber) * 100%, and when the combined sulfur ratio of the returned tire rubber is greater than or equal to 95%, determining that the returned tire rubber is normal vulcanization-thermal degradation rubber; when the combined sulfur ratio of the returned tire rubber is less than 95%, the tire rubber is under-sulfur-thermal degrad</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | Method for judging tire under-sulfur damage or thermal degradation damage |
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