文章摘要
Effect of Modified Kaolin Nanotubes on Properties of NR/CR/CIIR Blends
Received:December 26, 2019  Revised:December 26, 2019
DOI：10.12136/j.issn.1000-890X.2021.06.0421
Key Words: kaolin nanotubes；NR；CR；CIIR；blend；vulcanization characteristics；physical property；Payne effect
Author NameAffiliationE-mail
CUI Jiwen Qingdao University of Science and Technology 2720306820@qq.com 
LIU Pan Qingdao University of Science and Technology  
LIU Ying Qingdao University of Science and Technology  
LI Xiaoxiao Qingdao University of Science and Technology  
ZHU Fengshuai Qingdao University of Science and Technology  
HAN Jingjie* Qingdao University of Science and Technology hjj0812@163.com 
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Abstract:
      The modified kaolin nanotubes were prepared by using isopropyl trioleic acid acyloxy titanate（coupling agent HY-105），and natural rubber（NR）/chloroprene rubber（CR）/chlorinated butadiene rubber（CIIR） blends were reinforced by the modified kaolin nanotubes.The effect of the modified kaolin nanotubes on the properties of the blends was studied.The results showed that，compared with the blends reinforced with unmodified kaolin nanotubes，the storage modulus（G′） of the blends reinforced with modified kaolin nanotubes increased，the ΔG′ decreased，the Payne effect was weakened，the dispersion of filler was improved，and the F max－F L and physical properties of the blends were significantly improved.With the increase of the amount of modified kaolin nanotubes，the t 10 and t 90 of the blends were extended，the processing safety was improved，the F L，F max and F max－F L increased，while the tensile strength，elongation at break and tear strength increased first and then decreased.When the amount of the modified kaolin nanotubes was 10 phr，the physical properties of the blends were the best.
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