Preparation and characterization of nanofibrillated cellulose(NFC)from bagasse and the thermal and mechanical properties of NFC/PVA nanocomposite

摘要：

　　Bagasse is an abundant raw material of non-wood fiber.In the present work,nanofibrillated cellulose(NFC)extracted from bagasse by the pretreatment of TEMPO-Mediated oxidation and continuous homogenizing were used to reinforce polyvinyl alcohol(PVA),and their influence on the thermal properties,crystallinity,and strength properties of the resulting nanocomposite films were studied.It is confirmed that due to the uniform dispersion of strong hydrogen bonds of carboxyl and hydroxyl groups between NFC and PVA can be achieved,leading to a synergistic reinforcement effect on thermal and mechanical properties of the nanocomposite films.FT-IR and XRD showed that the chemical structure of the nanocomposite film and cellulose crystalline form has not changed.Compared with the neat PVA,the NFC/PVA nanocomposite film with 6wt%NFC has an increase of about 240%in tensile strength,158%in elastic modulus,and the glass transition temperature(Tg)has been significantly improved.

关键词： bagasse nanocomposite film nanofibrillated cellulose polyvinyl alcohol tensile strength thermal stability

作者: Liao Jianming Li Jun Mo lihuan Luan Pengcheng Hu shufeng Xu Jun

作者单位: State Kay Laboratory of Pulp and Paper Engineering,South China University of Technology Guangzhou,510640,China

会议类型: 国际会议

会议名称: 第五届制浆造纸新技术国际研讨会(ISETPP)暨第三届国际造纸与环境学术大会(IPEC)

会议地点: 广州

会议语种:英文

页码: 1-7

在线出版日期: 2016-11-07（万方平台首次上网日期，不代表论文的发表时间）