| 冻融循环处理对木塑复合材弯曲性能的影响 |
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| 引用本文： | 王伟,贺磊,董丽君,孙慧宇,徐波.冻融循环处理对木塑复合材弯曲性能的影响[J].江西林业科技,2013(6):40-42. |
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| 作者姓名： | 王伟 贺磊 董丽君 孙慧宇 徐波 |
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| 作者单位： | [1]徐州出入境检验检疫局胶合板实验室,江苏徐州221006 [2]江西省林业科学院,江西南昌330013 [3]临沂出入境检验检疫局,山东临沂276000 |
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| 基金项目： | 江苏出入境检验检疫局科技项目（2012KJ27）. |
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| 摘 要： | 对两种不同密度的聚丙烯基木塑复合材进行冻融循环处理,研究处理后试件的弯曲性能的变化.研究结果表明：在-29℃～25℃冻融条件下,两种本塑复合材的弯曲性能变化不明显;在-29℃～52℃,-40℃～52℃,-40℃～80 ℃的冻融条件下,两种木塑复合材的弯曲性能随着循环次数增加呈下降趋势;冻融循环处理后,低密度木塑复合材弯曲性能的衰减率要高于高密度的木塑复合材.
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| 关 键 词： | 冻融循环 木塑复合材 弯曲性能 |
Effect of Freeze-thaw Circle Environment on the Bending Resistance of Wood-plastic Composites |
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| WANG Wei,HE Lei,DONG Lijun,SUN Huiyu,XU Bo.Effect of Freeze-thaw Circle Environment on the Bending Resistance of Wood-plastic Composites[J].Jiangxi Forestry Science and Technology,2013(6):40-42. |
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| Authors: | WANG Wei HE Lei DONG Lijun SUN Huiyu XU Bo |
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| Institution: | 1. Plywood Testing Lab. of Xuzhou Entry-Exit Inspeetion and Quarantine Bureau, Xuzhou Jiangsu 221006, China; 2. Jiangxi Aeademy of Forestry, Nanehang Jiangxi 330013, China; 3. Linyi Entry-Exit Inspeetion and Quarantine Bureau, Linyi Shandong 276000, China) |
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| Abstract: | The bending properties of two polypropylene based wood plastic composite materials with different density under freezing thawing cycle treatment were tested. The results showed that under the condition of -29 ℃-25 ℃, changes in flexural properties of two kinds of wood plastic composite materials were not obvious. Under the condition of -29 ℃-52 ℃, -40℃-52℃, -40℃-80 ℃, the composites flexural properties decreased with growth of freeze-thaw cycles. Under freezing thawing cycle treatment, the flexural properties were decreased; descent rate of low density material was higher than the material with high density. |
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| Keywords: | freeze-thaw circle wood-plastic composites bending resistance |
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