PVC光稳定剂的安全性阐述
PVC光稳定剂的使用非常广泛，关于它的安全性问题现已越来越受到人们的重视。在研究PVC光稳定剂的安全性时应从三个方面考虑，一是使用原材料加工者的安全，二是使用者的安全防护，三是废弃物对环境的安全。加工者的安全防护可通过稳定剂的液化、膏状化、颗粒化等措施加以解决。对于使用者的安全防护，可将稳定剂高分子量化或制备反应性稳定剂来提高其耐抽性，但考虑到稳定化作用是分子级的化学反应，上述方法不是最合适的方法，最好的方法还是选用高安全性的稳定剂。在选择稳定剂时，还必须考虑稳定化过程中树脂与稳定剂，或稳定剂相互间发生反应所生成的化学物质安全性。
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