PVC光稳定剂
GUANGYISHANGLAISHUO,FANSHINENGGOUGAISHANJUHEWUREWENDINGXINGDETIANJIAJIDOUCHENGWEIREWENDINGJI。YOUYUJULVYIXIDEREWENDINGXINGCHA,YINCISHIJIESHANGJUEDADUOSHUPVCWENDINGJIDOUSHIYONGYUJULVYIXIDE。SUOYI,TONGCHANGSHUODEPVCWENDINGJIJIUSHIZHIJULVYIXIJIQIGONGJUWUDEREWENDINGJI。
一般按照光稳定剂的化学组分来进行分类,可以为碱式铅盐,金属皂,有机锡,环氧化合物,亚磷酸酯,多元醇等。若按作用大小可将PVC稳定剂分为主稳定剂和辅助稳定剂。辅助稳定剂本身只有很小的稳定作用或没有热稳定效果,但它和主稳定剂并用具有协同效应;主稳定剂一般是含有金属的热稳定剂。而环氧化合物,亚磷酸酯,多元醇等纯有机化合物一般是作为辅助稳定剂使用。
YINWEIYAODADAOJULVYIXIDELIANGHAOWENDINGXINGCHANGCHANGXUYAOTONGSHISHIYONGDUOZHONGpvcREWENDINGJI,SUOYI,YOUXIESHANGPINPVCWENDINGJISHIYOUDUOZHONGCHENGFENFUPEI,CHENGWEIFUHEWENDINGJI,RUBEIGEWENDINGJI,BEIXINWENDINGJIDENG,ZHEIXIEFUHEWENDINGJITONGCHANGYIJINGJIARULEJULVYIXIJIAGONGSUOXUYAODERUNHUAJIDENGZHUJI,YIFANGBIANYONGHUSHIYONG。FUHEWENDINGJIPINZHONGHENDUO,YOUFENZHUANG,GAOZHUANG,YETI,SANZHONGXINGSHI。
(1)吸收氯化氢
Me(OOCR)2+ 2HCl===MeCl2+ 2HOOCR
QIZHONGMeWEI:Pb、Ba、Cd、Ca、Zn、Sn、Sb、Mg、SrDENG。
(2)XIAOCHUBUWENDINGDELVYUANZIZHIHUANHUOXIAOCHUBUWENDINGDELVYUANZI。
(3)FANGZHIZIDONGYANGHUAJULVYIXIZAIREYANGJIJIANQIELIZUOYONGXIA,JIYIBEIO2YANGHUAFASHENGJIANGJIE。
(4)JIARUMALAISUANDEJINSHUYANKEYIZHIHUOXIAOCHUSHUANGJIANHUOSHIZHIBIANDUAN、BIANSHAO。