Preparation of surface functionalized nano SiO<sub>2</sub> and its application in solution polymerized styrene butadiene rubber-polybutadiene rubber

TIAN Qingfeng; TANG Yuan; LIU Yalan; ZHANG Chunhua; DING Tao; LI Xiaohong; ZHANG Zhijun

doi:10.13801/j.cnki.fhclxb.20191113.002

Volume 37 Issue 7

Aug. 2020

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TIAN Qingfeng, TANG Yuan, LIU Yalan, et al. Preparation of surface functionalized nano SiO2 and its application in solution polymerized styrene butadiene rubber-polybutadiene rubber[J]. Acta Materiae Compositae Sinica, 2020, 37(7): 1703-1712. doi: 10.13801/j.cnki.fhclxb.20191113.002

Citation:

TIAN Qingfeng, TANG Yuan, LIU Yalan, et al. Preparation of surface functionalized nano SiO₂ and its application in solution polymerized styrene butadiene rubber-polybutadiene rubber[J]. Acta Materiae Compositae Sinica, 2020, 37(7): 1703-1712. doi: 10.13801/j.cnki.fhclxb.20191113.002

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Preparation of surface functionalized nano SiO₂ and its application in solution polymerized styrene butadiene rubber-polybutadiene rubber

doi: 10.13801/j.cnki.fhclxb.20191113.002

TIAN Qingfeng^{1, 3},
TANG Yuan²,
LIU Yalan¹,
ZHANG Chunhua¹,
DING Tao²,
LI Xiaohong^{1, 3
,
,},
ZHANG Zhijun^{1, 3
,
,}

1.
National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan Uni-versity, Kaifeng 475004, China
2.
Flame Retardan and Functional Materials Engineering Laboratory of Henan Province, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
3.
Engineering Research Center for Nanomaterials Co. Ltd. Henan University, Jiyuan 459000, China

Received Date: 2019-07-20
Accepted Date: 2019-10-12

Available Online: 2019-11-13

Publish Date: 2020-07-15

Abstract

Abstract

A series of nano SiO₂ grafted with organosilane (HB-2200), nano SiO₂ grafted with amino (HB-2205N), nano SiO₂ grafted with double bond (HB-2205D) and nano SiO₂ grafted with amino-double bond (HB-2205ND) groups were prepared through liquid phase in-situ surface modification method. The structure and properties of nano SiO₂/solution polymerized styrene butadiene rubber-polybutadiene rubber (SSBR-BR) composites were characterized by TEM, SEM and rheometer. The results show that compared with the unmodified nano SiO₂, the compatibility between surface functionalized nano SiO₂ and rubber matrix is improved, Payne effect is reduced, the interaction between nano SiO₂ is weakened, and the dispersion of nano SiO₂ in SSBR-BR is improved. Compared with nano SiO₂/SSBR-BR composite, the mixing torque of HB-2200/SSBR-BR composite is reduced by 35.7%, the mixing energy consumption is saved by 15%, the interfacial bond between the filler and the rubber is strengthened due to the increase in the content of bound rubber, and its tensile strength is increased by 60%. The dynamic mechanical and abrasion performance analyses show that the reactive double bond group grafted on the surface of SiO₂ could improve the wet slip resistance of HB-2205D/SSBR-BR composite by 40% and reduce the rolling resistance by 43%. Nano SiO₂ surface grafted with reactive double bond could reduce its rolling resistance and improve its resistance to wet slip, without sacrificing the wear resistance of HB-2205D/SSBR-BR composite. It provides the basic raw materials for the preparation of high-performance tires.
- in-situ modification,
- SiO₂,
- interfacial interaction,
- rubber,
- Payne effect
Long Abstrsct
Innovation Points

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References(24)

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