Enhancing mechanical performance and wet‐skid resistance of emulsion styrene butadiene rubber/natural rubber latex composites via in‐situ hybridization of silanized graphene oxide and silica

2022 ◽  
pp. 52083
Author(s):  
Qiao Li ◽  
Guangyi Lin ◽  
Shouzhen Chen ◽  
Lin Zhang ◽  
Yingjie Song ◽  
...  
Materials ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1025
Author(s):  
Songhan Wan ◽  
Xiaobin Lu ◽  
Hongguo Zhao ◽  
Songbo Chen ◽  
Shuwei Cai ◽  
...  

Graphene oxide (GO) was modified by p-phenylenediamine (PPD), aiming at improving the wet-skid resistance and reduce the rolling loss of solution polymerized styrene-butadiene rubber (SSBR). PPD with amino groups enabled GO to obtain anti-aging function. The structure of modified GO (PPD-GO) was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and Raman spectroscopy. Mechanical tests showed that the mechanical properties of SSBR before and after aging were improved by adding PPD-GO. The results of thermogravimetric-differential scanning calorimeter synchronization analysis (TGA-DSC) indicated that SSBR/PPD-GO obtained good thermo-oxidative stability. The dynamic mechanical analysis (DMA) of SSBR composites showed that the mechanical loss factor (tanδ) peak moved to high temperature with the content of PPD-GO. The tanδ values of SSBR composites showed that it had a good effect on improving the wet-skid resistance and reducing the rolling loss of SSBR by adjusting the content of PPD-GO. In particular, with the addition of 4 phr GO, SSBR was effectively improved in mechanical properties, aging resistance, wet-skid resistance and low rolling loss.


2003 ◽  
Vol 76 (7) ◽  
pp. 234-239 ◽  
Author(s):  
Kiyoshi SUNADA ◽  
Hiroki TAKESHITA ◽  
Masamitsu MIYA ◽  
Tsukasa NAKAMURA ◽  
Katsuhiko TAKENAKA ◽  
...  

2020 ◽  
Vol 10 (13) ◽  
pp. 4478 ◽  
Author(s):  
Ruoming Huang ◽  
Qiwei Pan ◽  
Zhaohui Chen ◽  
Kunhao Feng

As commercial rubber in tires, silica-filled solution-polymerized styrene-butadiene rubber/butadiene rubber (SSBR/BR) compounds exhibited preferable wet skid resistance (WSR) properties, which could be further enhanced by the incorporation of some oligomeric resins. However, the untreated dicyclopentadiene (DCPD) resin shows a slight improvement in wet friction even if the good compatibility between DCPD and SBR owing to their common cyclic structures. For this problem to be addressed, we aimed to enhance its resin-silica interaction by reaction with maleic anhydride (MAH). In detail, the effect of MAH content on WSR, curing characteristics, physical-mechanical properties of the silica-filled SSBR/BR composites was investigated. When the MAH content is 4 wt% in the modified DCPD resin, the maximum enhancement of about 15% in tan δ values at 0 °C, as well as that of 17% in British pendulum skidding tester (BPST) index is obtained, indicating a desirable improvement in WSR. In addition of these two commonly used methods, water contact angles of the vulcanizates increase gradually with increasing MAH content, further confirming the remarkable performance of modified DCPD resin in WSR.


2016 ◽  
Vol 89 (2) ◽  
pp. 262-271 ◽  
Author(s):  
Qingguo Wang ◽  
Jingrui Liu ◽  
Quande Cui ◽  
Xiao Xiao

ABSTRACT How to improve the wet skid resistance of rubber composites for tire tread while decreasing the rolling resistance is very important for both rubber researchers and industry. The irradiation-vulcanized elastomer particles, ultrafine fully-vulcanized powder nitrile butadiene rubber (UFPNBR), having the diameter of about 80 nm, were studied on modifying the dynamic mechanical properties of styrene butadiene rubber/natural rubber (SBR/NR) composites for tire tread. It is notable that the UFPNBR particles can improve the tanδ values of SBR/NR composites in a temperature range from −10 to 20 °C and decrease the tanδ values in the temperature range from 50 to 70 °C simultaneously, which indicates that the UFPNBR particles not only can improve the wet skid resistance but also can reduce the rolling resistance of the SBR/NR composites. On the other hand, the UFPNBR-modified SBR/NR composites also have good dynamic properties for safety operation of tires at high temperature and good tensile strength, tear strength, and fatigue properties in the range of 8 phr UFPNBR loadings.


2005 ◽  
Vol 72 (5) ◽  
pp. 613-618 ◽  
Author(s):  
C.V. Chaudhari ◽  
Y.K. Bhardwaj ◽  
N.D. Patil ◽  
K.A. Dubey ◽  
Virendra Kumar ◽  
...  

Polymers ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1820 ◽  
Author(s):  
Haijun Ji ◽  
Hui Yang ◽  
Liwei Li ◽  
Xinxin Zhou ◽  
Lan Yin ◽  
...  

Ester-functionalized styrene-butadiene rubber (dibutyl itaconate-styrene-butadiene rubber) (D-ESBR) was synthesized by low-temperature emulsion polymerization using dibutyl itaconate (DBI) as a modified monomer containing ester groups. Nonpetroleum-based silica with hydroxy groups was used as a filler to enhance the D-ESBR, which can provide excellent mechanical properties, low rolling resistance, and high wet skid resistance. During the preparation of the silica/D-ESBR nanocomposites, a hydrogen-bonding interface was formed between the hydroxy groups on the surface of silica and the ester groups in the D-ESBR macromolecules. As the content of ester groups in the D-ESBR increases, the dispersion of silica in the nanocomposites is gradually improved, which was verified by rubber process analyzer (RPA) and scanning electron microscopy (SEM). Overall mechanical properties of the silica/D-ESBR modified with 5 wt % DBI were improved and became superior to that of the non-modified nanocomposite. Compared with the non-modified silica/D-ESBR, the DBI modified silica/D-ESBR exhibited a lower tan δ value at 60 °C and comparable tan δ value at 0 °C, indicating that the DBI modified silica/D-ESBR had lower rolling resistance without sacrificing wet skid resistance.


RSC Advances ◽  
2016 ◽  
Vol 6 (40) ◽  
pp. 33643-33655 ◽  
Author(s):  
V. Sankar Raman ◽  
A. Das ◽  
K. W. Stöckelhuber ◽  
S. B. Eshwaran ◽  
J. Chanda ◽  
...  

The silica particles generated from alkoxide route are grown onto the styrene butadiene polymer chains and offer a direct rubber to filler interaction. As a result, superior mechanical performance of the elastomeric composites can be realised.


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