The remarkably improved filler dispersion and performance of SSBR/BR by core–shell structure SiO2@LDH nanocomposites

• DOI: 10.1007/s42452-019-0324-8
• Publication Date: 2019-03-15T19:44:55Z
• Authors: Hong Zhu; Xidai Huang; Zhongying Wang; Linghan Kong; Minglin Chen; Fanghui Wang
• Keywords: Filler (materials); Styrene-butadiene; Dispersity

Core–shell structure of SiO2@MgAl-layered double hydroxide (SiO2@LDH) as a novel filler was prepared and incorporated into solution-polymerized styrene butadiene rubber/butadiene rubber (SSBR/BR) matrix to prepare SiO2@LDH–SSBR/BR composites. The results revealed the advanced structure of SiO2@LDH in the application of elastomer and the strongly interaction between SiO2 and LDH. The investigation of the fracture surface scanning and the study of ‘Payne effect’ to the SSBR/BR compounds indicated a good dispersity of filler in the rubber matrix. In addition, the SiO2@LDH–SSBR/BR composites showed an increased modulus (300% strain) and a decreased modulus (100% strain) compared with commercialized Zeosil 1165MP highly-dispersed SiO2 nanoparticles. The synergistic enhancement of SiO2 and LDH in rubber matrix was discussed. The remarkable comprehensive properties enhancement of all the SiO2@LDH–SSBR/BR was obviously observed in the dynamic mechanical analysis compared with the SiO2–SSBR/BR samples. The results in this study strongly illustrate that SiO2@LDH nanocomposites could be a good candidate as a kind of reinforcement filler for the green tires.