| 聚乳酸木质基材料的制造工艺 |
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| 引用本文： | 袁媛,郭明辉,王勇,周新. 聚乳酸木质基材料的制造工艺[J]. 东北林业大学学报, 2010, 38(9) |
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| 作者姓名： | 袁媛 郭明辉 王勇 周新 |
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| 作者单位： | 1. 生物质材料与技术教育部重点实验室(东北林业大学),哈尔滨,150040
2. 江阴市杲信化纤有限公司 |
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| 基金项目： | 黑龙江省重点科技攻关项目，哈尔滨市重点科技攻关项目，中央高校基本科研业务费专项资金项目 |
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| 摘 要： | 以天然木纤维为基本相、聚乳酸为黏接相设计层结构铺装,通过热压制得聚乳酸木质基材料。利用正交实验对主要工艺参数和成板性能的关系进行研究,分析了各因素对成板性能的影响规律,确定出最优的工艺参数。试验结果表明:经硅烷处理的木纤维与未处理木纤维制得的试板性能相比,其物理力学性能得到明显提高。随着硅烷用量(3%～7%)和PLA添加量(10%～30%)的增加,试板的耐水性增大;当热压时间从8min延长到12min,试板的弹性模量增大;当热压温度从170℃升高到180℃,试板的物理力学性能增加。确定的最优工艺参数为:PLA添加量20%,硅烷用量3%,热压温度190℃,热压时间10min。在此工艺参数条件下制得聚乳酸木质基材料,其静曲强度和弹性模量均达到室外型板物理力学性能指标,但试板的耐水性偏低。
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| 关 键 词： | 聚乳酸 木质基材料 硅烷处理 |
Manufacturing Process of Polylactic Acid/Wood-based Composite |
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| Yuan Yuan,Guo Minghu,Wang Yong,Zhou Xin. Manufacturing Process of Polylactic Acid/Wood-based Composite[J]. Journal of Northeast Forestry University, 2010, 38(9) |
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| Authors: | Yuan Yuan Guo Minghu Wang Yong Zhou Xin |
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| Affiliation: | Yuan Yuan,Guo Minghu,Wang Yong(Key Laboratory of Bio-based Material Science , Technology (Northeast Forestry University),Ministry of Education,Harbin 150040,P.R.China),Zhou Xin(Gaoxin Chemical Fiber Company Limited of Jiangyin City) |
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| Abstract: | The layer stacking technique was applied to the manufacture of Polylactic Acid (PLA) /wood-based composite by hot pressing and using natural wood fiber as basic raw material and PLA as adhesive.The relationships between the main process parameters and the performances of the board were studied by the orthogonal experiments,and the various factors influencing the performances were analysed and the optimal parameters were determined.Result showed that,comparing the test-boards of silane-treated wood fiber wit... |
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| Keywords: | Polylactic acid Wood-based composites Silane treatment |
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