AN APPROACH TO PREPARATION OF POLYMER NANO CaCO3 COMPOSITES

LIU Zhengying; YU Runze; YANG Mingbo; FENG Jianmin; YANG Wei; YIN Bo

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AN APPROACH TO PREPARATION OF POLYMER NANO CaCO3 COMPOSITES

Research Article | 更新时间：2021-03-19

- AN APPROACH TO PREPARATION OF POLYMER NANO CaCO3 COMPOSITES
- Acta Polymerica Sinica Issue 1, Pages: 53-58(2007)
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- Published：20 January 2007，
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LIU Zhengying, YU Runze, YANG Mingbo, FENG Jianmin, YANG Wei, YIN Bo. AN APPROACH TO PREPARATION OF POLYMER NANO CaCO3 COMPOSITES. [J]. Acta Polymerica Sinica (1):53-58(2007)
DOI：

LIU Zhengying, YU Runze, YANG Mingbo, FENG Jianmin, YANG Wei, YIN Bo. AN APPROACH TO PREPARATION OF POLYMER NANO CaCO3 COMPOSITES. [J]. Acta Polymerica Sinica (1):53-58(2007) DOI：

摘要

提出了一种制备聚合物/碳酸钙复合材料的技术.即先将纳米碳酸钙粒子在温和条件下分散到水溶液中

再在较弱的外场作用下混合分散到聚合物熔体中

使用此方法制备的4种典型聚合物(聚乙烯、聚丙烯、聚碳酸酯和聚脂)的纳米复合材料

通过扫描电镜观察纳米粒子以纳米尺寸均匀分布于树脂基体中.聚碳酸酯复合材料的相对分子质量变化不大

而且复合材料的某些力学性能有所提高

证明此种方法可用于极性与非极性聚合物制备纳米复合材料.

Abstract

An approach

mild mixing

has been demonstrated for the preparation of polymer/CaCO3 nanoparticle composite in twin-screw extruder.In this method

the pre-dispersed nanoparticle suspensions were blended with melting polymers

PC and PBT

in a weak shearing field using an extruder

followed by removing the water from vent.The four typical polymeric nanocomposites were prepared by mild mixing.The dispersion quality of nano-CaCO3 in the matrix of polymer was characterized by scanning electron microscopy (SEM)

and the nano-CaCO3 was found to be dispersed in polymer matrix at the nanoscale.The molecular weights of PC and its nanocmposite showed that degradation did not occurr in the process.The mechanical properties of composites had increased slightly with the content of 1.5 wt％ nano-CaCO3. It proved that the approach was suitable for the preparation with polar and non- polar polymers.

关键词

碳酸钙纳米粒子柔和共混极性非极性聚合物纳米复合材料

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Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology

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