Preparation of Calcium Carbonate@Methyl Methacrylate Nanoparticles by Seeded-Dispersion Polymerization for High Performance Polyvinyl Chloride Nanocomposites

详细信息    查看全文

• 作者：Wenqiong Ye ; Ling Zhang ; Guowei Feng ; Jing Ye ; Chunzhong Li
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2015
• 出版时间：August 5, 2015
• 年：2015
• 卷：54
• 期：30
• 页码：7459-7464
• 全文大小：434K
• ISSN：1520-5045

文摘

Calcium carbonate@methyl methacrylate-polyvinyl chloride (CaCO₃@PMMA鈥揚VC) nanocomposites with outstanding mechanical performance have been successfully prepared. Precise control over the CaCO₃ surface modification via a green, facile, and reproducible seed dispersion polymerization, not only efficiently avoids agglomeration of the incorporated nanofillers, but also ensures enhanced interfacial adhesion between components, endowing the resultant composite with high performance. Specifically, the maximum tensile strength of PVC composites was achieved when the addition of CaCO₃@PMMA NPs is 4 wt %, and the grafting content is 25%. Compared to pure PVC (P-PVC), the composite shows robust mechanical properties with a 116.7% increase in modulus and a 57.0% improvement in hardness.