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- Title
Preparation and performance of oleylamine modified silica‐reinforced natural rubber composites.
- Authors
Mei, Junfei; Geng, Haoran; Yu, Han; Shi, Jia; Zhao, Yanfang; Yu, Rentong; Liao, Jianhe; Chen, Yongping
- Abstract
Oleylamine (OA) modified silica (SiO2‐g‐OA) was prepared using γ‐(2,3‐epoxypropoxy) propytrimethoxysilane (KH560) and OA, silica/natural rubber (NR) and SiO2‐g‐OA/NR composites were prepared by mechanical blending in an internal mixer, and SiO2‐g‐OA was characterized by Fourier transform infrared spectroscopy, thermal gravimetric analyzer, and contact angle analyzer. The mechanical properties, abrasion resistance, curing characteristics, Payne effect, and morphology of silica/NR and SiO2‐g‐OA /NR composites were investigated using universal testing machine, Akron abrasion tester, rubber processing analyzer, and scanning electron microscope, respectively. The results showed that SiO2‐g‐OA became more hydrophobic and had better compatibility with NR. Moreover, SiO2‐g‐OA/NR had weaker Payne effect, better vulcanization performance, and more excellent mechanical properties. As the content of filler was more than 30 phr, SiO2‐g‐OA/NR had lower rolling resistance and higher wet skid resistance. Compared with silica modified by other coupling agents, SiO2‐g‐OA had the best reinforcement effect on NR.
- Subjects
AKRON (Ohio); STYRENE-butadiene rubber; RUBBER; FOURIER transform infrared spectroscopy; SKID resistance; SCANNING electron microscopes; ROLLING friction
- Publication
Journal of Applied Polymer Science, 2021, Vol 138, Issue 9, p1
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.49907