Effects of Accelerated Weathering on the Bulk Interfacial Strength between Wood and Thermoplastics

加速耐候試驗對木材與塑膠界面膠合剪力之影響

黃清吟(Chin-Yin Hwang)

《台灣林業科學》 21卷1期 (2006/03) Pp. 101-108

https://doi.org/10.7075/TJFS.200603.0101

摘要

本研究旨在探討加速耐候試驗對木材與塑膠模式試片界面膠合剪力之影響。以樺木(B)及橡膠木(R)二樹種與高密度聚乙烯(HDPE)、低密度聚乙烯(LDPE)、聚丙烯(PP)、聚苯乙烯(PS)及耐衝擊聚苯乙烯(HIPS)等五種塑膠製成木材與塑膠之模式試片後，經浸水2(2h)及24(24h)小時與吸脫濕循環2(2 wk)及4(4 wk)週等四種加速劣化處理，試驗結果發現HDPE、PP、PS及HIPS對吸脫濕反覆循環較為敏感，而浸水及吸脫濕循環對LDPE與木材界面膠合剪力影響不大。

關鍵字

木材塑膠複合材料 ； 界面膠合剪力 ； 單纖維引拔法 ； 加速耐候

並列摘要

Model composites of birch (B) and rubberwood (R) dowels and 5 types of thermoplastics, namely low-density polyethylene (LDPE), high-density polyethylene (HDPE), polypropylene (PP), polystyrene (PS), and high-impact polystyrene (HIPS), were used to evaluate the effect of weathering conditions on the bulk interfacial shear strength (ISS) of wood-plastic composites using a modified single-fiber pull-out test. Results showed that HDPE, PP. PS, and HIPS were more sensitive to the cyclic humidity tests, while LDPE was less influenced by either the water immersion or cyclic-humidity changes.

並列關鍵字

wood-plastic composites ； interfacial shear strength ； single-fiber pull-out test ； accelerated weathering