Rosin acid modification of bamboo powder and thermoplasticity of its products based on hydrothermal pretreatment

编号 020037304

推送时间 20221212

研究领域 林产化工 

年份 2022 

类型 期刊 

语种 英语

标题 Rosin acid modification of bamboo powder and thermoplasticity of its products based on hydrothermal pretreatment

来源期刊 Advanced Composites and Hybrid Materials

期 第373期

发表时间 20210501

关键词 Bamboo;  Rosin acid;  Hydrothermal pretreatment;  Thermoplasticity;  Modification; 

摘要 Natural chemicals obtained from the renewable resources were widely used in the modification of plant fibers. In this report, in order to develop thermoplasticity of materials, the bamboo powder (BP) after hydrothermal pretreatment (BP-LHW) was efficiently modified with natural rosin acid (BP-LHW-RA) by esterification reaction under heterogeneous condition. The results indicate that the modified BP-LHW-RA presents a strong peak at 1743 cm(-1) in the FT-IR spectra, which attributed to the -C = O vibration of the ester group formed by the reaction between rosin acid and the BP-LHW, confirming that BPLHW was successfully grafted with rosin acid. The C1/C3 ratio of BP-LHW-RA increased 1.35 times as compared with BP-LHW in XPS analysis. Meanwhile, the crystallization index of BP-LHW-RA decreased by 4.62%, and its surface became smooth and full. Moreover, the glass transition temperature of BP-LHW-RA was 200 degrees C. The work presents a green and feasible route to prepare bio-based materials with desired thermoplasticity by grafting natural rosin onto biomass substrate.

服务人员 尚玮姣

服务院士 宋湛谦

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