Properties of wood plastic composite with different photo-stabilizer and/or zinc borate
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摘要: 通过对比含有20 gkg-1硼酸锌(ZnB),以及紫外光稳定剂/硼酸锌复配添加剂的木塑复合材料的耐老化性能,探讨复配紫外光稳定剂对材料耐候的影响。紫外光稳定剂包括受阻胺光稳定剂(hindered amine light stabilizer, HALS)和紫外吸收剂(ultraviolet light absorber, UVA)。木塑复合材料的耐老化性能通过材料表面颜色,表面润湿性以及弯曲强度来表征。结果表明:紫外光对材料性能的破坏集中于前500 h。光稳定剂可以有效地阻止紫外光对木塑复合材料的破坏,材料的力学性能会随着光稳定剂的加入量的提高而提高;相较于硼酸锌,受阻胺光稳定剂/硼酸锌复配紫外光稳定剂,紫外吸收剂(2%UVA)/硼酸锌复配紫外光稳定剂可以更加有效地阻止紫外光对木塑复合材料的破坏。图1表4参10Abstract: The research compared the material durability of wood plastic composites (WPCs) consisting 20 g kg-1 zinc borate (ZnB) and ultraviolet light absorber (UVA) and ZnB synthesis to examine the impacts of ultraviolet light stabilizer on the material durability. Ultraviolet light stabilizers include ultraviolet light stabilizer (HALS) and ultraviolet light absorber (UVA). Durability of WPCs can be tested by their surface color, wettability and bending strength. The results are as follows: Ultraviolet light was most destructive to the properties of materials for the first 500 hours UV exposure; the light stabilizers were effective in preventing the damage of UV light to WPCs; the mechanical properties of the materials would improve with the increased amount of photo-stabilizer. 2% UVA/ zinc borate (ZnB) and ultraviolet light stabilizer is more effective than hindered amine light stabilizers (HALS)/ultraviolet light absorber (UVA) and ZnB synthesis to endure the destruction of ultraviolet light to WPCs. [Ch, 1 fig. 4 tab. 10 ref.]
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https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2015.06.014
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