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首页> 外文期刊>Journal of Thermoplastic Composite Materials >Determination of biological performance, dimensional stability, mechanical and thermal properties of wood-plastic composites produced from recycled chromated copper arsenate-treated wood
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Determination of biological performance, dimensional stability, mechanical and thermal properties of wood-plastic composites produced from recycled chromated copper arsenate-treated wood

机译：测定由铬酸砷酸铬处理过的木材制成的木塑复合材料的生物性能，尺寸稳定性，机械和热性能

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摘要

The aim of this study was to investigate the dimensional stability, mechanical and biological performance and thermal degradation of wood-plastic composites made from high-density polyethylene and recycled wood treated with chromated copper arsenate (CCA), a commonly used wood preservative chemical. Virgin pine wood samples were also prepared with and without a coupling agent and used as the control group. Samples of CCA-treated Scots pine (Pinus sylvestris L.) with varying wood content were produced by adding different ratios of the coupling agent. The recycled CCA-treated wood-filled composites exhibited better flexural and tensile strength properties and dimensional stability than the control group, whilst their impact strength was less. Biological test values showed improved durability against termites and fungus with the recycled CCA-treated wood-filled composites. In addition, the leaching of heavy metals was significantly diminished when the coupling agent was utilized at a level of 5% (w/w), thus presenting a much lower impact on the environment.
机译：这项研究的目的是研究由高密度聚乙烯制成的木塑复合材料的尺寸稳定性，力学性能和生物降解性以及热降解性能，该复合材料是用铬酸砷酸铜（CCA）（一种常用的木材防腐剂）处理的再生木材。还制备了有或没有偶联剂的原始松木样品，并用作对照组。通过添加不同比例的偶联剂，可以生产经CCA处理的具有不同木材含量的苏格兰松树（Pinus sylvestris L.）样品。再生的CCA处理的木材填充复合材料比对照组具有更好的弯曲和拉伸强度性能以及尺寸稳定性，而冲击强度却更低。生物学测试值表明，经CCA处理的木材填充复合材料可以有效抵抗白蚁和真菌。另外，当偶联剂的用量为5％（w / w）时，重金属的浸出显着减少，因此对环境的影响小得多。

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