Enhanced mechanical properties of styrene–butadiene rubber with low content of bacterial cellulose nanowhiskers. Issue 5 (23rd November 2016)

• Record Type: Journal Article
• Authors: Yin, Biao; Li, Geng; Wang, Dongni; Wang, Liping; Wang, Jingyi; Jia, Hongbing; Ding, Lifeng; Sun, Dongping
• Is Part Of: Advances in polymer technology. Volume 37:Issue 5(2018)
• Page Start: 1323
• Page End: 1334
• Publication Date: 2016-11-23
• Subjects: bacterial cellulose whisker -- mechanical properties -- styrene–butadiene rubber; Plastics -- Periodicals; Polymers -- Periodicals; 668.9
• DOI: 10.1002/adv.21791
• Languages: English
• ISSNs: 0730-6679

Abstract

Abstract: Styrene–butadiene rubber (SBR) nano‐composites were prepared through mixing SBR latex with bacterial cellulose whiskers (BCWs). BCWs were extracted from the residual bacterial cellulose (BC) that was treated with acid hydrolysis. A rod‐like nanofiber structure of BCWs was observed by transmission electron microscopy and atomic force microscopy. BCWs maintained the crystal structure in BCWs/SBR nano‐composites as confirmed by X‐ray diffraction patterns. The dispersion of BCWs in SBR matrix was further detected with field emission scan electron microscope. BCWs acted as a multifunctional physical cross‐linker in the SBR matrix, the combination of BCW reinforcement and increased effective cross‐linking density of the rubber network with incorporating BCWs would cause a more effective transfer of stresses from matrix to filler. Compared with neat SBR, the tensile strength and tear strength of SBR/BCW nano‐composite with 2.5 phr (parts per hundred rubber) BCWs were increased by 319% and 182%, respectively.