| 顺丁橡胶硫化胶的高温拉伸性能研究 |
| Study on Tensile Properties of BR Vulcanizates at High Temperature |
| 投稿时间：2019-06-20 修订日期：2019-06-20 |
| DOI：10.12136/j.issn.1000-890X.2020.03.0181 |
| 中文关键词: 顺丁橡胶 炭黑 硫化体系 高温拉伸性能 |
| 英文关键词: BR carbon black vulcanization system tensile property at high temperature |
| 基金项目:山东省自然科学基金资助项目（ZR2016XJ001） |
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| 中文摘要: |
| 研究炭黑用量和硫化体系[普通硫化（CV）体系、半有效硫化（SEV）体系、有效硫化（EV）体系和过氧化物（DCP）硫化体系]对顺丁橡胶（BR）硫化胶高温拉伸性能的影响。结果表明：不同炭黑用量的BR硫化胶的50%和100%定伸应力均随着温度的升高而逐渐增大，拉伸强度和拉断伸长率均随着温度的升高而逐渐减小，拉伸强度保持率随着炭黑用量的增大而增大；各种硫化体系的BR硫化胶的50%和100%定伸应力均随着温度的升高而逐渐增大，拉伸强度和拉断伸长率均随着温度的升高而逐渐减小；过氧化物硫化体系的BR硫化胶的拉伸强度较小，但高温下的拉伸强度保持率较大。 |
| 英文摘要: |
| The effects of carbon black content and vulcanization system[conventional vulcanization （CV）system，semi-effective vulcanization（SEV）system，effective vulcanization（EV）system and peroxide （dicumyl peroxide）vulcanization system] on the high temperature tensile properties of butadiene rubber （BR） vulcanizates were investigated. The results showed that，with the increase of the temperature，the modulus at 50% and 100% elongation of BR vulcanizates with different carbon black content increased，the tensile strength and elongation at break decreased，and the tensile strength retention rating was enlarged with the increase of carbon black content. With the increase of the temperature，the modulus at 50% and 100% elongation of BR vulcanizates with all kinds of vulcanization system increased，and the tensile strength and elongation at break decreased. The tensile strength of BR vulcanizates with peroxide vulcanization system was lower compared with that of the BR vulcanizates with any other vulcanization system in this study，but the retention rate of tensile strength was larger at high temperature. |
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