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首页> 外文会议>American Chemical Society >Ionic Liquids as Alternative Plasticizers for Poly(vinyl chloride): Flexibility and Stability in Thermal, Leaching, and UV Environments
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Ionic Liquids as Alternative Plasticizers for Poly(vinyl chloride): Flexibility and Stability in Thermal, Leaching, and UV Environments

机译：离子液体作为聚（氯乙烯）的替代增塑剂：热，浸出和UV环境中的柔韧性和稳定性

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摘要

Ionic liquids (ILs) based on ammonium, imidazolium and phosphonium cations were proven to be good plasticizers for poly(vinyl chloride), PVC, offering similar or better properties compared to traditional plasticizers. Formulations containing as much as 50 wt % plasticizer were made, and tested for flexibility in comparison to traditional plasticizers based on phthalate, trimellitate, and citrate esters. The flexibilities of all plasticized samples were nearly equal, with slight variances in glass transition temperatures, depending primarily on the plasticizer content, but to a smaller extent on the chemical structure of the plasticizer. Because ILs are known for their wide liquid range and non-volatility, they can be used in plastics at higher temperatures than traditional plasticizers. The thermal stability of plasticized PVC was evaluated at moderate and high temperatures, as was each plasticizer's ability to reduce brittleness caused by ultraviolet (UV) light exposure. Solid-solid migration and solid-liquid leaching experiments were carried out to determine the suitability of IL plasticizers for the automotive and medical industries.
机译：基于铵，咪唑鎓和鏻阳离子的离子液体（ILS）被证明是聚（氯乙烯），PVC的良好增塑剂，与传统增塑剂相比，提供相似或更好的性质。制备含有多达50wt％增塑剂的制剂，并与基于邻苯二甲酸酯，粉末和柠檬酸酯的传统增塑剂相比，进行灵活性。所有增塑样品的柔韧性几乎相等，玻璃化转变温度略有差异，主要取决于增塑剂含量，但在增塑剂的化学结构上较小。因为ILS以其宽的液体范围和非挥发性而闻名，所以它们可用于比传统增塑剂更高的温度在塑料中。塑化PVC的热稳定性在中等和高温下评价，每个增塑剂可以减少由紫外线（UV）光暴露引起的脆性的能力。进行了固体迁移和固液浸出实验，以确定IL增塑剂为汽车和医疗行业的适用性。

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