Synthesis and Characterization of trans-1,4-Poly(butadiene-co-isoprene) Rubbers (TBIR) with Different Fraction and Chain Sequence Distribution and Its Influence on the Properties of Natural Rubber/TBIR/Carbon Black Composites

被引:30
作者
Li, Weitian [1 ]
Peng, Wei [1 ]
Ren, Shuting [1 ]
He, Aihua [1 ]
机构
[1] Qingdao Univ Sci & Technol, Shandong Prov Key Lab Olefin Catalysis & Polymeri, Key Lab Rubber Plast, Minist Educ,Sch Polymer Sci & Engn, Qingdao 266042, Shandong, Peoples R China
基金
中国国家自然科学基金;
关键词
TRANS-1,4-BUTADIENE/ISOPRENE COPOLYMERS DETERMINATION; MULTIBLOCK COPOLYMER; THERMAL-BEHAVIOR; PHASE; TEMPERATURE; ISOPRENE; FILLER; SILICA; NANOCOMPOSITES; TRANS-1;
D O I
10.1021/acs.iecr.9b01447
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Higher performance tire tread stocks with lower rolling resistance, higher abrasion, and fatigue resistance are urgent needs considering environmental protection, resource saving, and personal safety. In this paper, high trans-1,4poly(butadiene-co-isoprene) copolymer rubbers (TBIR) consist of three main fractions containing trans-1,4-polyisoprene (TPI) blocks and/or trans-1,4-polybutadiene (TPB) blocks with varied sequence length and butadiene content, which have varied crystalline and degradation behavior. Blending 10 phr TBIR with natural rubber (NR) in a truck tire tread stock, the vulcanizated NR/TBIR/carbon black (CB) composites present improved modulus at 300% and abrasion resistance, higher fatigue resistance, lower rolling resistance, and heat buildup. The contribution of the TBIR fraction distribution on the properties of the improved fatigue resistance for NR/TBIR/CB composites are discussed. NR/TBIR-1/CB vulcanizate with satisfied comprehensive properties and acceptable tear strength reveals that the fraction and chain sequence distribution of TBIR do have an obvious influence on the final performance of the composites.
引用
收藏
页码:10609 / 10617
页数:9
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