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

编号 020029904

推送时间 20210712

研究领域 林产化工 

年份 2021 

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299期

发表时间 20210505

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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