|本期目录/Table of Contents|

[1]刘治澳,赵庆镇,马春临,等.减振制品用天然橡胶在存储过程中结构与性能的演变[J].合成橡胶工业,2024,2:153-159.
 LIU Zhi-ao,ZHAO Qing-zhen,MA Chun-lin,et al.Evolution of structure and properties of natural rubber for vibration damping products during storage[J].China synthetic rubber industy,2024,2:153-159.
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减振制品用天然橡胶在存储过程中结构与性能的演变(PDF)

《合成橡胶工业》[ISSN:1000-1255/CN:62-1036/TQ]

期数:
2024年2期
页码:
153-159
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Evolution of structure and properties of natural rubber for vibration damping products during storage
文章编号:
1000-1255(2024)02-0153-07
作者:
刘治澳赵庆镇马春临李培军?鄢
青岛科技大学 高分子科学与工程学院/橡塑材料与工程教育部重点实验室,山东 青岛 266042
Author(s):
LIU Zhi-ao ZHAO Qing-zhen MA Chun-lin LI Pei-jun
School of Polymer Science and Engineering/Key Laboratory of Rubber-Plastics of Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China
关键词:
天然橡胶空气弹簧热氧老化交联密度硬度动态力学性能动静刚度比
Keywords:
natural rubber air spring thermal- oxidative aging crosslinking density hardness dynamic mechanical property ratio of dynamic stiffness and static stiffness
分类号:
TQ 336.4
DOI:
DOI:10.19908/j.cnki.ISSN1000-1255.2024.02.0153
文献标识码:
B
摘要:
采用长期储存和加速老化相结合的方法对减振制品用天然橡胶(NR)在存储过程中结构与性能的演变进行研究。结果表明,随着老化温度的升高和老化时间的延长,NR硫化胶的硬度、100%定伸应力、300%定伸应力、储能模量和损耗模量均逐渐增大且总体变化趋势与交联密度的变化趋势相近,拉伸强度和扯断伸长率的变化率均呈现整体下降趋势,而损耗因子则迅速降低并趋于稳定,动静刚度比呈现先降低后缓慢上升的趋势;热空气老化对NR硫化胶减振性能的影响较小。
Abstract:
The evolution of structure and properties of natural rubber (NR) for vibration damping products during storage was studied by long-term storage method and accelerated aging method. The results showed that the hardness, modulus at 100%, modulus at 300%, storage modulus and loss modulus of NR vulcanizates increased gradually with increase of aging temperature and aging time, and the overall change trend was similar to that of crosslinking density. The change rates of tensile strength and elongation at break decreased while the loss factor decreased rapidly and tended to be stable. The ratio of dynamic stiffness and static stiffness decreased first and then increased slowly. Hot air aging had little effect on the vibration reduction performance of NR vulcanizates.

参考文献/References

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备注/Memo

备注/Memo:
国家重点研究计划项目(2108 YFC 1902600)。
更新日期/Last Update: 1900-01-01