Wood particle size influence on water resistance and mechanical properties of thermally modified wood-poiypropylene composites

被引：10

作者：

Kuka, Edgars ^{[1
,2
]}

Cirule, Dace ^{[1
]}

Kajaks, Janis ^{[2
]}

Andersone, Ingeborga ^{[1
]}

Andersons, Bruno ^{[1
]}

机构：

[1] Latvian State Inst Wood Chem, Lab Wood Biodegradat & Protect, 27 Dzerbenes Str, LV-1006 Riga, Latvia

[2] Riga Tech Univ, Fac Mat Sci & Appl Chem, Riga, Latvia

来源：

INTERNATIONAL WOOD PRODUCTS JOURNAL | 2018年 / 9卷 / 02期

关键词：

Wood plastic composites; thermally modified wood; wood particle size; mechanical properties; water resistance;

D O I：

10.1080/20426445.2018.1493069

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

The processing of wood produces large amounts and different types of wood residues. Currently, a part of these residues is used in the production of wood plastic composites (WPC). It is known that wood particle characteristics (size, length/diameter ratio, shape, etc.) significantly influence properties of WPC; however, for thermally modified wood, the information about these effects is limited. Therefore, the main objective of this research was to investigate how different size fractions of thermally modified wood particles influence mechanical and water resistance properties of WPC. The results showed that the particle size had a significantly smaller influence on the mechanical properties for WPC with thermally modified wood particles compared to WPC with unmodified wood particles. Additionally, the wood particle size had no effect on water absorption dynamics and ultimate water uptake in case of thermally modified wood particles. Finally, wood particle size did not affect changes in mechanical properties for re-dried WPC after 200 days of immersion in water.

引用

页码：90 / 95

页数：6

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