微孔发泡聚乳酸/木纤维复合材料的泡孔结构

李少军; 黄汉雄; 许琳琼

doi:10.3969/j.issn.0438-1157.2013.11.051

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微孔发泡聚乳酸/木纤维复合材料的泡孔结构

材料化学工程与纳米技术 | 更新时间：2025-12-10

- 微孔发泡聚乳酸/木纤维复合材料的泡孔结构
- Cellular structure of microcellular poly(lactic acid)/wood fiber composite foams
- 化工学报 2013年第11期页码：4262-4268
- 作者机构：
  
  华南理工大学塑料橡胶装备及智能化研究中心,广东,广州,510640
- 作者简介：
  
  李少军(1987-),男,硕士研究生.
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.11.051
  中图分类号： Q321.5
- 网络首发：2013-11-05，
  
  纸质出版：2013-11-05
- 稿件说明：
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李少军, 黄汉雄, 许琳琼. 微孔发泡聚乳酸/木纤维复合材料的泡孔结构[J]. 化工学报, 2013,(11):4262-4268.

LI Shaojun, HUANG Hanxiong, XU Linqiong. Cellular structure of microcellular poly(lactic acid)/wood fiber composite foams[J]. CIESC Journal, 2013, (11): 4262-4268.
李少军, 黄汉雄, 许琳琼. 微孔发泡聚乳酸/木纤维复合材料的泡孔结构[J]. 化工学报, 2013,(11):4262-4268. DOI： 10.3969/j.issn.0438-1157.2013.11.051.

LI Shaojun, HUANG Hanxiong, XU Linqiong. Cellular structure of microcellular poly(lactic acid)/wood fiber composite foams[J]. CIESC Journal, 2013, (11): 4262-4268. DOI： 10.3969/j.issn.0438-1157.2013.11.051.

摘要

Abstract

By using supercritical carbon dioxide as physical foaming agent

microcellular poly(lactic acid)/wood fiber(PLA/WF)composite foams were prepared in a batch process via depressurization.The cellular structures of the foamed PLA/WF composites were observed by means of scanning electron microscope.The effect of WF content on cellular structure was investigated by analyzing the microstructure and rheological properties of the PLA/WF composites.The addition of WF induced higher storage modulus and complex viscosity of the PLA/WF composites in the low frequency range

resulting in much more uniform cellular structure.Cell density increased and cell size decreased gradually with the increase of WF content.The uniformity of cellular shape and structure was high for the foamed composite sample with 10%(mass) WF

whereas the uniformity decreased for those with 20% and 30% WF.

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