| WPC LVL共挤出复合材料的抗弯性能 |
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| 引用本文： | 王海刚,傅海涛,王清文,顿梦媛,刘天,陈朝苒.WPC LVL共挤出复合材料的抗弯性能[J].建筑材料学报,2018,21(4):695-700. |
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| 作者姓名： | 王海刚 傅海涛 王清文 顿梦媛 刘天 陈朝苒 |
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| 作者单位： | 东北林业大学生物质材料科学与技术教育部重点实验室;华南农业大学材料与能源学院 |
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| 基金项目： | 中央高校基本科研业务费专项资金项目（2572017PZ01）；国家自然科学基金资助项目（31500482） |
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| 摘 要： | 通过共挤出技术制备具有核壳结构的共挤出复合材料(CTC).其壳层为木粉/高密度聚乙烯(HDPE)基木塑复合材料(WPC),核层为杨木单板层积材(LVL).通过三点弯曲试验获得CTC和LVL试件的弯曲性能及破坏模式,并进一步研究水煮-冷冻-干燥环境对两者弯曲性能的影响.结果表明:CTC试件相对于LVL试件,其弯曲强度、弹性模量和抗弯刚度分别下降6.6%,12.7%和16.0%;但由于壳层WPC阻止了核层破坏时裂纹的产生和发展,使CTC试件的失效时间延长了44.1%;水煮-冷冻-干燥处理后,CTC试件的弯曲性能下降幅度明显小于LVL试件,这证明壳层WPC对核层LVL起到了很好的保护作用,WPC和LVL通过共挤出技术可达到很好的组合效应.
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| 关 键 词： | 共挤出复合材料 核壳结构 弯曲性能 破坏模式 壳层保护 |
| 收稿时间： | 2017/8/20 0:00:00 |
| 修稿时间： | 2017/11/6 0:00:00 |
Flexural Performance of Composite Manufactured by Wood Plastic Composites Co extruded with Laminated Veneer Lumber |
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| WANG Haigang,FU Haitao,WANG Qingwen,DUN Mengyuan,LIU Tian and CHEN Zhaoran.Flexural Performance of Composite Manufactured by Wood Plastic Composites Co extruded with Laminated Veneer Lumber[J].Journal of Building Materials,2018,21(4):695-700. |
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| Authors: | WANG Haigang FU Haitao WANG Qingwen DUN Mengyuan LIU Tian and CHEN Zhaoran |
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| Affiliation: | Key Laboratory of Biomass Materials Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China,Key Laboratory of Biomass Materials Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China,College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China,Key Laboratory of Biomass Materials Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China,Key Laboratory of Biomass Materials Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China and Key Laboratory of Biomass Materials Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China |
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