Preparation and Control of PC/PLA Composite Microsphere via Phase Separation

Li-qing QIU; Hang-zhong LIU; Jun-shao LIU

doi:10.14028/j.cnki.1003-3726.2021.07.008

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Preparation and Control of PC/PLA Composite Microsphere via Phase Separation

更新时间：2022-08-30

- Preparation and Control of PC/PLA Composite Microsphere via Phase Separation
- Polymer Bulletin Vol. 34, Issue 7, Pages: 65-70(2021)
- 作者机构：
  
  武夷学院生态与资源工程学院,福建省竹材工程技术研究中心,福建省生态产业绿色技术重点实验室,武夷山 354300
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2021.07.008
  CLC：
- Published：20 July 2021，
  
  Received：16 April 2020，
  
  Revised：22 January 2021，
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Li-qing QIU, Hang-zhong LIU, Jun-shao LIU. Preparation and Control of PC/PLA Composite Microsphere via Phase Separation. [J]. Polymer Bulletin 34(7):65-70(2021)
DOI：

Li-qing QIU, Hang-zhong LIU, Jun-shao LIU. Preparation and Control of PC/PLA Composite Microsphere via Phase Separation. [J]. Polymer Bulletin 34(7):65-70(2021) DOI： 10.14028/j.cnki.1003-3726.2021.07.008.

摘要

聚碳酸酯(PC)、聚乳酸(PLA)及三氯甲烷(CHCl

)混合作为油相

聚乙烯醇(PVA)溶液作为水相

通过相分离法制备PC/PLA复合微球。研究CHCl

浓度、水油比、PVA质量分数及PC/PLA质量配比对形成的PC/PLA复合微球形貌、结构的影响。实验结果表明:最佳的相分离实验条件为CHCl

浓度为2g/mL、水油比为4∶1、PVA质量分数为1%及PC/PLA质量配比为1/1时通过SEM 观察到粒径分布均匀、规则、光滑的复合微球。在适宜的条件下

PC和PLA分子链间作用力相当

扩散能力强

协同一致地结晶

促进成核-结晶而制备PC/PLA复合微球。

Abstract

The mixture of Polycarbonate (PC)

polylactic acid (PLA) and trichloromethane (CHCl

) were accounted for the oil phase and polyvinyl alcohol (PVA) solution was acted as the aqueous phase

which were prepared by phase separation for PC/ PLA composite microspheres. The factors of CHCl

concentration

water-oil ratio

PVA mass fraction and PC/PLA ratio on the morphology and structure were investigated. The results showed that the composite microspheres with small particle size

uniform distribution and surface are formed when the concentration of CHCl

was 2g/mL

water/oil mass ratio was 4∶1

PVA mass fraction was 1% and PC/PLA mass ratio are 1/1. Under the appropriate conditions

PC and PLA intermolecular chains have the same intermolecular force and strong diffusion ability

and the PC/PLA composite microspheres are prepared by synergistic and consistent crystallization

which promotes nucleation-crystallization.

关键词

聚碳酸酯聚乳酸复合微球相分离

Keywords

PolycarbonatePoly(lactic acid)Composite microspherePhase separation

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Related Author

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Related Institution

College of Materials Science and Engineering, Beijing University of Chemical Technology

Department of Material Science and Engineering, Luoyang Institute of Science and Technology

School of Chemical and Material Engineering, Jiangnan University

Shanghai Key Laboratory of Advanced Polymeric Material, School of Materials Science and Engineering, East China University of Science and Technology

Key Laboratory of Optoelectronic Chemical Materials and Devices (Ministry of Education), School of Optoelec-tronic Materials & Technology, Jianghan University

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