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首页> 外文期刊>Journal of Applied Polymer Science >Mixtures of poly(vinyl chloride) and copolyesters based on ε-caprolactone and L-lactide: Miscibility, thermal stability, and weathering resistance
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Mixtures of poly(vinyl chloride) and copolyesters based on ε-caprolactone and L-lactide: Miscibility, thermal stability, and weathering resistance

机译：基于ε-己内酯和L-丙交酯的聚氯乙烯和共聚酯的混合物：混溶性，热稳定性和耐候性

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摘要

Properties of the blends of Poly(vinyl chloride) (PVC) and poly(ε-caprolactone) (PCLO) and copolyesters based on ε-caprolactone and L-lactide (LLA) prepared by rolling were studied. Incorporating the LLA units into the structure of PCLO the content of the crystalline phase was controlled. Miscibility of the blends was assessed using DMA, and basic mechanical properties were correlated with the type and content of the polymer plasticizer. The PVC blends containing up to 20 wt parts polyesters were miscible. The presence of the LLA units in the copolyester influenced negatively the thermal stability. On the other hand even small content of copolyester in the blend enhanced the resistivity against aging.
机译：研究了聚氯乙烯（PVC）和聚（ε-己内酯）（PCLO）的共混物以及基于ε-己内酯和L-丙交酯（LLA）的轧制共聚酯的性能。将LLA单元结合到PCLO的结构中，控制了结晶相的含量。使用DMA评估共混物的混溶性，并将基本机械性能与聚合物增塑剂的类型和含量相关。包含最多20重量份聚酯的PVC共混物是可混溶的。共聚酯中LLA单元的存在对热稳定性产生负面影响。另一方面，共混物中甚至少量的共聚酯也会提高抗老化性。

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