NDLI: Reinforcing biofiller “Lignin” for high performance green natural rubber nanocomposites

Content Provider	Royal Society of Chemistry (RSC)
Author	Yokohama, Hiroyuki Phinyocheep, Pranee Ikeda, Yuko Kitano, Ritsuko Kato, Atsushi Phakkeeree, Treethip Junkong, Preeyanuch
Copyright Year	2017
Abstract	High performance eco-friendly natural rubber biocomposites filled with 5, 10, 20, and 40 parts per one hundred rubber by weight (phr) of lignin were prepared from sodium lignosulfonate and natural rubber (NR) latex using the soft processing method. The formation of network-like lignin structures was detected around the rubber phases even when the amount of lignin was increased to 40 phr. The Payne effect clearly suggested the presence of filler–filler interaction of lignin in the biocomposites. The distinguishably superior reinforcement effects of lignin at different levels of content were clearly apparent in the biocomposites. Specifically, the tensile stresses of the biocomposites significantly increased with an increase in the lignin content. Under dynamic conditions, the biocomposites showed larger storage moduli and lower dissipative loss with low glass transition temperatures with increasing amount of lignin. The generation of crystallites by strain-induced crystallization (SIC) was evaluated by using quick time-resolved wide-angle X-ray diffraction/tensile measurements, and a stepwise SIC phenomenon was observed for the lignin-filled NR soft biocomposites. This is a first report on the organic filler filled NR nanocomposite. The lignin content did not significantly affect the generation of crystallites of the NR biocomposites. This characteristic could strongly influence the development of rubber science and technology. Sodium lignosulfonate will be applicable as a good reinforcing biofiller for the preparation of green NR nanocomposites.
Starting Page	5222
Ending Page	5231
Page Count	10
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	7
Issue Number	9
Journal	RSC Advances
DOI	10.1039/c6ra26359c
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Glass transition X-ray crystallography Lignin Lignosulfonates Sodium San Isidro Club Natural rubber Nanocomposite
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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