文章摘要
Formulation Optimization of NR/TBIR Tread Compound for High Performance Truck and Bus Radial Tire
Received:July 10, 2019  Revised:July 10, 2019
DOI：10.12136/j.issn.1000-890X.2020.09.0696
Key Words: NR；TBIR；truck and bus radial tire；tread compound；high performance；formulation optimization；rolling resistance
Author NameAffiliationE-mail
WANG Hao* Shandong Huaju Polymer Materials Co.,Ltd huajutech1@chambroad. com 
LI Lange Shandong Huaju Polymer Materials Co., Ltd  
WANG Riguo Shandong Huaju Polymer Materials Co.,Ltd  
GE Huaitao Shandong Huaju Polymer Materials Co.,Ltd  
LI Taichen Shandong Huaju Polymer Materials Co.,Ltd  
REN Xuebin Shandong Huaju Polymer Materials Co.,Ltd  
LUAN Bo Shandong Huaju Polymer Materials Co.,Ltd  
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Abstract:
      The formulation optimization of natural rubber（NR）/trans-1，4-poly（butadiene-co-isoprene）rubber（TBIR）（blend ratio 90/10） tread compound for high performance truck and bus radial tire was studied.The results showed that，compared with carbon black reinforced NR/TBIR vulcanizates，the hardness，modulus，tensile strength，tear strength and abrasion resistance of carbon black/silica（blend ratio 40/15）reinforced NR/TBIR vulcanizates decreased little，the wet-skid resistance kept unchanged，the rolling resistance and heat built-up decreased 20% and 17% respectively.On the basis of this formulation，the optimized formulation was obtained by increasing the addition level of accelerator and sulfur by 10%.Compared with carbon black reinforced NR tread compound，the optimized formulation tread compound showed excellent mechanical and dynamic properties，i.e.under the condition of almost unchanging tensile strength and wet-skid resistance，rolling resistance and heat built-up decreasd by 26% and 20% respectively，and abrasion resistance improvd by 5%.This optimized formulation was suitable for the tread compound of high performance truck and bus radial tire with low rolling resistance.
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