受阻胺类光稳定剂在PP材料中的应用
分子材料的耐老氧化改性通常通过添加小分子光稳定剂,如复合型受阻胺类光稳定剂的方式实现。但这些小分子普遍存在一些不足:小分子经常会使高分子材料的力学性能降低;分子量较低,与高分子材料本身相容性较差,在材料加工和使用中会挥发和迁移;本身作为有机物也有毒性,也会被紫外光侵害。
针对有机光稳定剂在实际应用中的弊端,各国研究者都在致力于新的光稳定剂开发,高相对分子量化、多功能化和反应化是有机光稳定剂的必然发展趋势
受阻胺在PP应用 -> HS-944 结构式
针对有机光稳定剂在实际应用中的弊端,各国研究者都在致力于新的光稳定剂开发,高相对分子量化、多功能化和反应化是有机光稳定剂的必然发展趋势

Last Updated: 2014-03-29
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