Kev ua tau zoo ntawm daim ntawv polyethylene hauv daim ntawv thov teb ntawm blister tshuab

Cov khoom ntawm polyethylene nyob ntawm seb nws yog polymerized li cas. High-density polyethylene (HDPE) yog tsim los ntawm Ziegler-Natta polymerization nyob rau hauv nruab nrab siab ({2}} atmospheres) organic compound catalysis tej yam kev mob. Cov polyethylene molecules polymerized nyob rau hauv cov xwm txheej no yog linear, thiab cov saw molecular ntev heev, thiab molecular hnyav yog siab li ntau pua txhiab. Yog tias nws yog dawb-radical polymerization nyob rau hauv siab siab (100-300MPa), kub siab (190-210C), thiab peroxide-catalyzed tej yam kev mob, low-density polyethylene (LDPE) yog tsim, uas yog ib tug branched. chain compound structure.