PMMA has good compatibility with PVC due to specific interaction of a hydrogen bonding type between carbonyl groups (C=O) of PMMA and hydrogen from (CHCl) groups of PVC (Belhaneche-Bensemra et al., 2002; Ramesh et al., 2002). Zhou et al... PMMA has good compatibility with PVC due to specific
interaction of a hydrogen bonding type between carbonyl
groups (C=O) of PMMA and hydrogen from (CHCl) groups
of PVC (Belhaneche-Bensemra et al., 2002; Ramesh et al.,
2002). Zhou et al. (2001) studied the relationship between
the coating thickness of PMMA on the surface of talc and
mechanical properties of PMMA-g-talc/PVC composites,
and found that there existed a critical thickness. Xie (2001)
found that the PMMA coating on talc improved the dispersion
of talc in the PVC matrix and enhanced the interfacial
adhesion between talc and PVC. There appears to be a
critical coating thickness of PMMA on the talc surface for
optimum toughening. Quan et al. (2002) reported improved
toughness and intension of the PVC composites filled with
CaCO3/ACR core-shell complex particles prepared by
in-situ emulsion polymerization of acrylic ester.
In the present work, PMMA coated on the surface of
CaCO3 nanoparticles by in-situ emulsion polymerization
was characterized by FT-IR and 1H-NMR. The effects of
PMMA thickness and particle fraction on the mechanical
properties of PMMA-coated CaCO3 /PVC nanocomposites
were also investigated.
由于PMMA(聚甲基丙烯酸甲酯)的羰基与PVC(聚氯乙烯)中CHCl基团上的H可以形成氢键这种特殊的交互作用,因此,聚甲基丙烯酸甲酯与聚氯乙烯有很好的兼容性(Belhaneche-Bensemra等人,2002;Ramesh等人,2002)。周等人(2001)研究了在云母表面上PMMA的涂膜厚度与PMMA-g-talc/PVC这种复合材料的机械性能之间的关系,并且发现存在一个临界厚度。谢(2001)发现在云母上的PMMA膜,可以提升在PVC基质中云母的分散性,并且提高了云母与PVC之间的界面吸附。在云母表面,似乎存在一个临界PMMA膜厚度,使得材料有Z佳的增韧效果。Quan等人(2002)记录了用丙烯酸酯原位乳液聚合作用制备的CaCO3/ACR核壳复合颗粒填充而改良了韧性和强度的PVC复合材料。Z近研究工作中,把由原位乳液聚合作用得到的CaCO3纳米颗粒表面的PMMA膜用傅里叶变换红外光谱和核磁共振仪图谱进行了表征。同时,也研究了PMMA厚度和颗粒多少对PMMA-膜 CaCO3 /PVC纳米复合材料机械性能的影响。
"talc"我翻译为“云母”,不知对吗?