高等学校化学学报

高等学校化学学报 ›› 2019, Vol. 40 ›› Issue (8): 1733.doi: 10.7503/cjcu20190113

• 高分子化学 • 上一篇    下一篇

反式丁戊橡胶改性航空轮胎侧胶的结构与性能

张跃发1, 邵华锋1, 王日国2, 贺爱华1   

  1. 1. 山东省烯烃催化与聚合重点实验室, 橡塑材料与工程教育部重点实验室, 青岛科技大学高分子科学与工程学院, 青岛 266042;
    2. 山东华聚高分子材料有限公司, 滨州 256500
  • 收稿日期:2019-02-22 修回日期:2019-06-16 出版日期:2019-08-10 发布日期:2019-08-02
  • 通讯作者: 邵华锋男,博士,副教授,主要从事有机高分子材料合成及应用研究.E-mail:hfshao_sjtu@163.com;贺爱华,女,博士,教授,博士生导师,主要从事可控定向聚合制备橡塑新材料的基础与应用研究.E-mail:aihuahe@iccas.ac.cn,ahhe@qust.edu.cn E-mail:hfshao_sjtu@163.com;aihuahe@iccas.ac.cn,ahhe@qust.edu.cn
  • 基金资助:
    国家"九七三"计划项目（批准号：2015CB654700，2015CB654706）、山东省重大基础研究项目（批准号：ZR2017ZA0304）和泰山学者工程资助.

Structure and Properties of Sidewall Compounds for Aircraft Tyre Modified by TBIR

ZHANG Yuefa1, SHAO Huafeng1, WANG Riguo2, HE Aihua1   

  1. 1. Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization, Key Laboratory of Rubber-plastics(Ministry of Education), School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;
    2. Shandong Huaju Polymer Material Co., Ltd., Binzhou 256500, China
  • Received:2019-02-22 Revised:2019-06-16 Online:2019-08-10 Published:2019-08-02
  • Supported by:
    Supported by the National Basic Research Program of China(Nos.2015CB654700, 2015CB654706), the Significant Basic Research Program of Shandong Province, China(No.ZR2017ZA0304) and the Taishan Scholar Program, China.

RichHTML

PDF (PC)

摘要： 采用反式-1，4-丁二烯-异戊二烯共聚橡胶（简称反式丁戊橡胶，TBIR）改性航空轮胎侧胶[天然橡胶（NR）/顺丁橡胶（BR）（质量比80/20）]，研究了NR/BR/TBIR混炼胶的结晶行为、力学性能、硫化特性及硫化胶的物理机械性能、动态力学性能和填料分散性.结果表明，相比NR/BR并用胶，结晶性TBIR的并用赋予NR/BR/TBIR混炼胶较高的格林强度和杨氏模量.NR/BR/TBIR混炼胶工艺正硫化时间延长，交联密度提高.TBIR用量范围内，NR/BR/TBIR硫化胶300%定伸应力提高7%，耐屈挠疲劳性能提高35%~50%，滚动阻力降低.m（NR）/m（BR）/m（TBIR）为80/10/10硫化胶具有更好的综合力学性能及耐热氧老化性能.随着硫化时间的延长，NR/BR/TBIR（80/10/10）硫化胶较NR/BR（80/20）硫化胶100%定伸应力提高18%以上，NR/BR体系的耐屈挠疲劳性降低近60%，而NR/BR/TBIR（80/10/10）体系仍能保持原来的50%；反映滚动阻力的60℃损耗因子降低8%~14%，反映抗湿滑性的0℃损耗因子保持不变.填料分散度得到改善，填料聚集体尺寸降低.NR/BR/TBIR（80/10/10）硫化胶具有更好的耐长时间硫化的特性.

关键词: 反式丁二烯-异戊二烯共聚橡胶, 耐疲劳性能, 生热性能, 航空轮胎侧胶

Abstract: Trans-1,4-poly(butadiene-co-isoprene) copolymer rubber(TBIR) was used to modify nature rubber(NR)/butadiene rubber(BR) blends for sidewall compounds in aircraft tyre, and the crystalline behavior, mechanical properties and vulcanization characteristics of the NR/BR/TBIR compounds, physical and mechanical properties, dynamic mechanical properties and filler dispersion of the NR/BR/TBIR vulcanizates were studied in details. The results indicate that the incorporation of crystalline TBIR endows the NR/BR/TBIR compounds higher green strength and Young's modulus. Blending TBIR with NR/BR, the optimum curing time(tc90) and the crosslinking density of the compounds increased. The NR/BR/TBIR[m(NR)/m(BR)/m(TBIR)=80/10/10, 80/0/20] vulcanizates with TBIR incorporation showed 7% higher of 300% modulus, 35%-50% higher of flexural fatigue resistance and reduced rolling resistance compared with NR/BR vulcanizate. NR/BR/TBIR(80/10/10) vulcanizate presented better comprehensive properties with improved thermo-oxidative ageing resistance. With the extension of curing time, modulus at 100% of NR/BR/TBIR(80/10/10) vulcanizate was above 18% higher than NR/BR(80/20) vulcanizate. Flexural fatigue resistance of NR/BR vulcanizate was reduced by 60%, while only 50% of NR/BR/TBIR(80/10/10) vulcanizate. The NR/BR/TBIR vulcanizate showed reduced rolling resistance(8%-14% lower) and unchanged wet skid resistance. The filler dispersion improved with reduced filler aggregate size. NR/BR/TBIR(80/10/10) vulcanizate had good resistance to the longer curing time.

Key words: Trans-1,4-poly(butadiene-co-isoprene) copolymer rubber, Flex fatigue property, Heat built-up, Sidewall rubber in aircraft tyre

中图分类号: 

TrendMD: