npj Materials Degradation ( IF 5.1 ) Pub Date : 2019-04-18 , DOI: 10.1038/s41529-019-0080-7 Xin-Feng Wei , Erik Linde , Mikael S. Hedenqvist
Polymers experience degradation during storage and service. One of the main degradation mechanisms of plasticised-polymer products is the loss of plasticiser, which leads to poorer mechanical properties and eventual contamination of the surrounding environment. This paper addresses the kinetics and predictions of plasticiser migration from polymers to a surrounding gas phase, an important issue for plastic and rubber products exposed to high service temperature conditions and during accelerated ageing and testing. The features and factors influencing the two migration-rate-limiting modes (plasticiser evaporation and diffusion), as well as migration issues related to bio-based plasticisers and plasticiser-biopolymer systems, are discussed.
中文翻译:
塑料或橡胶产品因扩散和蒸发而导致的增塑剂损失
聚合物在储存和使用过程中会发生降解。增塑聚合物产品的主要降解机理之一是增塑剂的损失,这导致较差的机械性能以及最终对周围环境的污染。本文讨论了增塑剂从聚合物向周围气相迁移的动力学和预测,这是暴露于高使用温度条件下以及加速老化和测试过程中的塑料和橡胶产品的重要问题。讨论了影响两种迁移速率限制模式(增塑剂蒸发和扩散)的特征和因素,以及与生物基增塑剂和增塑剂-生物聚合物体系有关的迁移问题。