PVC型材表面硫污染变色研究

Study on discoloration of PVC profiles caused by surface sulfur contamination

详细研究了PVC型材表面发生硫污染变色的物质来源,影响硫污染变色的各种条件,并提出了解决方案。

Thc sourccs of materials causing sulfur contamination discoloration on PVC profiles surface were studicd in dctail as well as conditions of influencing sulfur contamination discolora- tion. Solutions wcrc proposed