粘度法研究氯化聚丙烯和涂料树脂间的相容性

doi:10.11944/j.issn.1000-0518.2017.11.160516

摘要/Abstract

摘要：

用稀溶液粘度法研究了氯化聚丙烯与石油树脂、丙烯酸树脂和醇酸树脂间的相容性,并用α判据对相容性结果进行判别。结果显示,石油树脂/氯化聚丙烯的共混体系是相容的;丙烯酸树脂/氯化聚丙烯的共混体系是不相容的。而醇酸树脂与氯化聚丙烯的相容性情况复杂,由二者的组成决定。当m(醇酸树脂):m(氯化聚丙烯)<1:1时,体系是相容的;当m(醇酸树脂):m(氯化聚丙烯)>1:1时,体系是不相容的。通过共溶剂法和涂膜宏观特性对上述体系的相容性进行测定,所得结果与α判据的结果相符合,印证了稀溶液粘度法研究溶液中高分子间的相互作用来预测涂料树脂的相容性具有一定可行性。

关键词: 氯化聚丙烯, 涂料树脂, 共混, 相容性, 粘度法

Abstract:

The viscosities of the dilute solutions containing chlorinated polypropylene(CPP) and the coating resins, such as petroleum resin(PTR), acrylic resin(ALR) and alkyd resin(SAR), with different compositions were measured. The miscibilities of PTR/CPP blends, ALR/CPP blends and SAR/CPP blends were discriminated by the miscibility criterion α which was calculated from the experimental data by dilute solution viscosity. The results show that PTR/CPP blends are miscible and ALR/CPP blends are immiscible, while the miscibilities of SAR/CPP blends are determined by their compositions. SAR/CPP blends are compatible when the mass ratios of SAR to CPP are less than 1:1, while the blends are incompatible when the mass ratios are greater than 1:1, which are consistent with the results of the stability of the mixtures, the clarity and the related glossiness of the films. Therefore, the dilute solution viscosity can be used in the determination of coating polyblend miscibility by determining polymer-polymer interactions in solution.

Key words: chlorinated polypropylene, coating resin, blend, miscibility, viscometry

范忠雷, 刘大壮. 粘度法研究氯化聚丙烯和涂料树脂间的相容性[J]. 应用化学, 2017, 34(11): 1273-1278.

FAN Zhonglei, LIU Dazhuang. Study on the Miscibility of Chlorinated Polypropylene with Coating Resins by Viscometry[J]. Chinese Journal of Applied Chemistry, 2017, 34(11): 1273-1278.

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