Preparation of (PSt/OMMT)/PBA Core-shell Composite

Xiu-li WANG; Li-si XIE; Huan-guang LI; Si-le HE; Ling LIU

doi:10.14028/j.cnki.1003-3726.2016.08.009

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Preparation of (PSt/OMMT)/PBA Core-shell Composite

更新时间：2022-09-12

- Preparation of (PSt/OMMT)/PBA Core-shell Composite
- Polymer Bulletin Vol. 29, Issue 8, Pages: 81-88(2016)
- 作者机构：
  
  肇庆学院化学化工学院，肇庆 526061
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2016.08.009
  CLC：
- Published：20 August 2016，
  
  Received：02 October 2015，
  
  Revised：14 April 2016，
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Xiu-li WANG, Li-si XIE, Huan-guang LI, Si-le HE, Ling LIU. Preparation of (PSt/OMMT)/PBA Core-shell Composite. [J]. Polymer Bulletin 29(8):81-88(2016)
DOI：

Xiu-li WANG, Li-si XIE, Huan-guang LI, Si-le HE, Ling LIU. Preparation of (PSt/OMMT)/PBA Core-shell Composite. [J]. Polymer Bulletin 29(8):81-88(2016) DOI： 10.14028/j.cnki.1003-3726.2016.08.009.

摘要

采用半连续种子乳液聚合方法，制备了以聚苯乙烯（PSt)/有机蒙脱土（OMMT)为核，聚丙烯酸正丁酯(PBA)为壳的核壳纳米复合材料(CSN)。借助傅里叶变换红外光谱(FTIR)、扫描电子显微镜(SEM)和透射电子显微镜(TEM)考察了 CSN的粒子结构及形貌，显示CSN呈球形，核壳结构明显。通过种子用量、核壳质量配比、引发剂用量及单体总量对乳液性能的研究，结果表明，当种子用量为20%，核壳质量配比2：1，引发剂用量0. 6 % (wt)，单体总量45 % ( wt)时，乳液的固含量、转化率较高，耐水性、化学稳定性及机械稳定性较好。热重分析（TGA)表明CSN复合材料热稳定性有所提高。

Abstract

A core-shell structured nanocomposite (CSN) with polystyrene (PSt )/organophilic montmorillonite (OMMT) as core and poly (butyl acrylate) (PBA) as shell were prepared through seed emulsion polymerization. The structure and morphology of CSN particle were examined through infrared spectrometry (FTIR)

scanning electron microscopy (SEM) and transmission electron microscopy(TEM). CSN was spherical

with an evident core-shell structure. Through studying of seed dosage

core-shell quality ratio

amount of initiator and total monomers on the properties of emulsion

results showed that when seed dosage

core-shell quality ratio

amount of initiator and total monomers were 20% (wt)

2:1

0. 6% (wt) and 45% (wt) respectively

the solid content and conversion rate of emulsion were higher

and water resistance

chemical stability and mechanical stability were better. Thermogravimetric analysis (TGA) showed that thermal stability of CSN was improved.

关键词

苯乙烯有机蒙脱土种子乳液丙烯酸正丁酯核壳复合材料

Keywords

StyreneOrganic montmorilloniteSeed emulsionn-Butyl acrylateCore-shell composite

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