摘要： 将纳米 CaCO3先分散在醋酸乙烯（VAc）中，再进行 VAc溶液聚合，以原位聚合的方法制得纳米 CaCO3/PVAc复合材料。主要研究了纳米 CaCO3在 VAc中的最佳分散条件和 VAc溶液聚合的最佳条件参数，对不同纳米CaCO3含量的复合材料进行红外、透射电镜表征和断裂强度、断裂伸长率等性能的测试。结果显示：CaCO3与 PVAc存在化学键的结合，CaCO3在 PVAc中呈纳米级分散，当纳米 CaCO3质量分数为 0.2%~0.3%时，该复合材料力学性能最佳。
关键词:
溶液聚合,
原位聚合,
纳米 CaCO3,
表征,
性能
Abstract:
The nano-CaCO3, was dispersed into vinyl acelate(VAc), then the VAE solution was polymerized and the nano -CaCO3 /PVAc composite material was obtained eventualy. The optimum dispersionand optimum conditions of nano-CaCO3 in VAc and optimum conditions for the polymerization of VAc were studied. The FT-IR and TEM were used to characterized the structure of nano-CaCO3/PVAc composite material. The break strength and rupture elongation of composite material were tested. The result show that there exist chemical bends between CaCO3 and PVAc. The CaCO3 particles were dispersed in PVAc in nano scale. The Nano-CaCO3 /PVAC composite material shows best performance when the mass fraction of nano-CaCO3 in PVAc is 0.2%~0.3%
Key words:
solution polymerization,
in-situ polymerization,
nano- CaCO3,
characterization,
properties
张 勇, 吴之传, 许茂东. 原位聚合法制备纳米CaCO3/PCAc 复合材料[J]. 涂料工业, 2009, 39(8): 12-14.
Zhang Yong, Wu Zhichuan, Xu Maodong. Synthesis of Nano-CaCO3/PCAc Composites by In-Situ Polymerization[J]. Paint & Coatings Industry, 2009, 39(8): 12-14.