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STUDY ON THE STRUCTURE AND PROPERTIES OF POLY(3-HYDROXYBUTYRATE-CO-4-HYDROXYBUTYRATE)/RUBBER WOOD FIBER COMPOSITES MODIFIED WITH TITANATE COUPLING AGENT

文献类型： 外文期刊

作者： Li, Dongna 1 ; Li, Jianing 1 ; Ma, Xiaojun 2 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Rubber Res Inst, Minist Agr,State Key Lab Breeding Base Cultivat &, Key Lab Biol & Genet Resource Utilizat Rubber Tre, Danzhou 571700, Peoples R China

2.Tianjin Univ Sci & Technol, Coll Light Ind Sci & Engn, Tianjin 300222, Peoples R China

关键词： Wood flour; P34HB; titanate; structure; mechanical properties

期刊名称：WOOD RESEARCH （ 影响因子：1.139； 五年影响因子：1.184 ）

ISSN： 1336-4561

年卷期： 2021 年 66 卷 1 期

页码：

收录情况： SCI

摘要： In this study, the biodegradable composites were prepared from rubber wood fibers (Ilevea brasiliensis) and biopolymer poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (P34HB) via hot pressing process, using the titanate as the coupling agent. The morphological, chemical structure, mechanical properties and water absorption (WA) of the composites were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), mechanical properties and WA analysis. Results showed that a new absorption peak of Ti-O-C was formed due to the addition of titanate, indicating that it was successfully grafted on the surface of wood fibers. In addition, the mechanical properties of the composites first increased and then decreased with the increasing of the titanate content. The obvious improvement of WA of composites was attributed to the inclusion of P34HB by titanate modified wood fiber. Moreover, it was also found that the optimal condition of the titanate coupling agent content was 1 wt%.

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