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Tensile strength of wood polylactic acid composite: A meta-analysis

文献类型： 外文期刊

作者： Lv, Lei 1 ; Guo, Zhenhua 2 ; Wang, Hongdi 1 ;

作者机构： 1.Heilongjiang Acad Forestry, Wood Sci Res Inst, 134 Haping Rd, Harbin 150080, Peoples R China

2.Heilongjiang Acad Agr Sci, Anim Husb Res Inst, Key Lab Combining Farming & Anim Husb, Minist Agr & Rural Affairs, 368 Xuefu Rd, Harbin 150086, Peoples R China

关键词： Meta-analysis; Polylactic acid; Tensile strength; Wood; Wood plastic composite

期刊名称：JOURNAL OF CERAMIC PROCESSING RESEARCH （ 影响因子：0.69； 五年影响因子：0.55 ）

ISSN： 1229-9162

年卷期： 2020 年 21 卷 5 期

页码：

收录情况： SCI

摘要： It is worth mentioning that polylactic acid (PLA) is extracted from plants and it can be considered a renewable resource. The sustainable development of resources can be achieved by turning PLA and wood production into wood plastic composite (WPC). In this study, the mechanical properties of WPC were compared in a meta-analysis that focused on WPC made with PLA because the tensile strength (TS) of WPC compared with PLA was unclear. We assessed changes in the mechanical properties of PLA and wood used to make WPC by identifying 1919 peer-reviewed manuscripts, of which 15 articles were included in this analysis. We found that adding 10%-50% wood flour reduced the TS, breaking elongation, and impact strength of WPC. This did not affect the bending modulus. More work is required to solve the compatibility issues between wood fiber and plastics as well as to better understand the degradability of PLA-WPC. Additionally, the cost reduction for WPC synthesis must be addressed.

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