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題名 | 利用時間--溫度疊加原理預測竹材聚乳酸複合材料之潛變行為=Time-Temperature Superposition Principle for the Predicting Creep Behavior of Bamboo-Polylactic Acid Composites |
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作者姓名(中文) | 吳東霖; 吳志鴻; | 書刊名 | 林產工業 |
卷期 | 34:2 2015.06[民104.06] |
頁次 | 頁51-57 |
分類號 | 436.51 |
關鍵詞 | 竹材塑膠複合材料; 潛變行為; 時間--溫度疊加原理; 平均破壞載重; 使用年限; Bamboo-plastic composite; Creep behavior; Time-temperature superposition principle; Average breaking load; Lifetime; |
語文 | 中文(Chinese) |
中文摘要 | 本研究利用桂竹(Phyllostachys makinoi)加工廢料及聚乳酸(Polylactic acid,PLA)製備竹材塑膠複合材料(Bamboo-plastic composite,BPC)。同時,利用長期潛變試驗與動態機械分析儀等,探討竹粒片添加量對複合材料潛變行為之影響。試驗結果顯示,當竹粒片添加量低於40 wt%時,活化能隨竹粒片添加量增加而增加。而當竹粒片添加量達60 wt%時,則活化能呈輕微減少現象。此外,潛變柔量亦隨竹粒片添加量增加而增加。另外,透過時間–溫度疊加原理(Time-temperature superposition principle,TTSP)之短期加速潛變試驗模式,可有效預測BPC 長時間潛變行為及使用年限。其中,PLA 添加40 wt%竹粒片所製備之複合材料,能有效降低材料的潛變現象。於試材10%平均破壞載重(Average breaking load,ABL)下,其使用年限較純PLA 延長約3.5 倍的時間。 |
英文摘要 | In this study, makino bamboo (Phyllostachys makinoi) residue and polylactic acid (PLA) were used as raw materials to manufacture bamboo-plastic composite (BPC). Effects of bamboo particle content on creep behavior of BPC were evaluated by long-term creep test and dynamic mechanical analyzer (DMA). These results showed that the activation energy of BPC increased with increasing bamboo particle (BP) loading up to 40 wt%; after that the activation energy of the composite slightly decreased at 60 wt% BP loading. Moreover, the compliance of BPC also increased with increasing BP loading. In addition, the time-temperature superposition principle (TTSP), a short-term accelerated creep test, can be simulated or predicted long-term creep behavior and lifetime of BPC. Accordingly, the BPC with 40 wt% BP could effectively reduce the creep defect, and its lifetime could be extended to 3.5 times as compared to the neat PLA under 10% average breaking load (ABL). |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。