Cellular structure of microcellular poly(lactic acid)/wood fiber composite foams

LI Shaojun; HUANG Hanxiong; XU Linqiong

doi:10.3969/j.issn.0438-1157.2013.11.051

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Cellular structure of microcellular poly(lactic acid)/wood fiber composite foams

更新时间：2025-12-10

- Cellular structure of microcellular poly(lactic acid)/wood fiber composite foams
- CIESC Journal Issue 11, Pages: 4262-4268(2013)
- 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：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.11.051
  CLC： Q321.5
- Online First：05 November 2013，
  
  Published：05 November 2013
- 稿件说明：
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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：

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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