Role of moisture on press formed products made of Wood Plastic Composites
Role of moisture on press formed products made of Wood Plastic Composites
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水分对木塑复合材料压制成型产品的作用
DOI：
10.1016/j.promfg.2018.10.076
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
T. Kärki
中科院分区：
文献类型：
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作者：
Sami Matthews;A. Toghyani;S. Ovaska;M. Hyvärinen;P. Tanninen;Ville Leminen;Antti Pesonen;H. Eskelinen;J. Varis;T. Kärki
压制成型为利用再生原料制成的木塑复合材料提供了一种可行且可持续的后生产方法。水分的影响在木塑材料制备和前处理过程中得到了验证。然而，对材料后处理效果的检查受到限制。本文研究了挤压成型的WPC（50%木材/50%HDPE）材料板材和压制成型产品在水下浸泡30天的影响。在此调查之前，在浸没之前对一些片材进行再加热。浸没结果表明，与非再加热片材和压制成型产品相比，再加热材料片材的体积膨胀和重量增加存在显著差异。与再加热材料片材相比，产品和未再加热片材的吸收性显著降低，并且它们的尺寸稳定性更好。
Press forming offers a feasible and sustainable post-production method to utilize wood plastic composite(WPC) materials made of recycled raw materials. The effect of moisture has been validated in the research of WPC material fabrication and pre-processing. However, inspection of the effect in post-processing of the material has been limited. This article investigated the effects of 30 days submersion of extruded WPC (50% wood/50% HDPE) material sheets and press-formed products under water. Before this investigation, a number of the sheets were reheated before submersion. The submersion results indicated significant differences in volumetric swelling and weight gain of reheated material sheets in comparison to non-reheated sheets and press formed products. The products and non-reheated sheets were significantly less absorptive and their dimensional stability was better compared to reheated material sheets.