脂肪族/芳香族二羧酸酯单体配伍对环保型水溶性聚酯粘合性能影响的研究

Influence of monomer compatibility of aliphatic/aromatic dicarboxylic ester on the adhesion of environment friendly water-soluble copolyester

通过将不同摩尔配比的丙二酸乙二醇酯嵌入到芳香族水溶性聚酯的分子主链中,制备出一系列具有不同分子结构的环保型脂肪族-芳香族水溶性共聚酯(WSACP)。然后,以WSACP溶液在聚酯纤维上的接触角、WSACP膜的拉伸力学性能以及WSACP对聚酯纤维的粘合强度为主要量化指标,研究了脂肪族单体丙二酸二甲酯(DMM)与芳香族单体对苯二甲酸二甲酯(DMT)的单体配伍对WSACP与聚酯纤维粘合性能的影响。结果表明:当DMM∶DMT=3∶7(摩尔比)时,合成的WSACP对聚酯纤维的粘合性能较为优异。

A series of water-soluble aliphatic-aromatic copolyesters（WSACP）with different molecular structures were prepared through incorporating various molar amount of ethylene malonate into the backbone of water-soluble aromatic polyester.In terms of contact angel of WSACP solution on polyester fibers,tensile properties of WSACP film,and adhesive strength to polyester fibers,effects of monomer compatibility of dimethyl malonate（DMM）/dimethyl terephthalate（DMT）on the adhesion of WSACP to polyester fibers were studied.The experimental results showed that the adhesion of WSACP to polyester fiber was better when the feed molar ratio of DMM/DMT was 3∶7（mole ratio）.