文章摘要
Properties of Modified Kaolin/Carbon Black Reinforced Compound
Received:January 10, 2022  Revised:January 10, 2022
DOI:10.12136/j.issn.1000-890X.2023.06.0410
Key Words: kaolin;coupling agent;modification;carbon black;reinforcement;rolling resistance
Author NameAffiliationE-mail
Yang Mengjie 1.Guangdong University of Petroleum Technology;2.Maoming Huanxing New Materials Co, Ltd. shibosut@163.com 
Yu Benyi Maoming Huanxing New Materials Co, Ltd.  
CHEN Renshun Guangdong University of Petroleum Technology  
LI Zhenchang Maoming Huanxing New Materials Co, Ltd.  
SHI Bo* Guangdong University of Petroleum Technology shibosut@163.com 
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Abstract:
      In this work,the modification of kaolin by couple agents and the influence of the modified kaolin on the properties of carbon black filled compound were investigated from three aspects: type of coupling agent,amount of coupling agent,and modification method. The results showed that the modified kaolin with silane coupling agent KH550 was suitable for compound reinforcement. The coupling agent reacted with the surface hydroxyl group of the kaolin to form alkyl compounds,and the modified kaolin could provide good reinforcing effect for the compound. Compared with dry modification method,wet ball milling modification could refine the kaolin powders effectively. The addition of the modified kaolin reduced the effect of carbon black on the heat build-up of the compound. Moreover,the tensile strength and elongation at break of the compound were enhanced,and the rolling resistance was reduced.
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