Kev taw qhia luv luv ntawm daim ntawv PE ntau lawm hauv daim ntawv thov teb ntawm blister tshuab

Xyoo 1933, British Bonemen Chemical Industry Company tau tshawb pom tias ethylene tuaj yeem ua polymerized nyob rau hauv siab siab los ua polyethylene. Txoj kev no tau raug tsim tawm hauv xyoo 1939 thiab feem ntau hu ua txoj kev kub siab. Xyoo 1953, K. Ziegler ntawm Tsoom Fwv Tebchaws Tebchaws Yelemes tau pom tias nrog TiCl4-Al(C2H5)3 ua ib qho catalyst, ethylene kuj tuaj yeem ua polymerized nyob rau hauv qis dua. Txoj kev no tau muab tso rau hauv kev tsim khoom hauv xyoo 1955 los ntawm Lub Tuam Txhab Hearst ntawm Tsoom Fwv Tebchaws Tebchaws Yelemees, thiab feem ntau hu ua polyethylene tsis tshua muaj siab. Thaum ntxov xyoo 1950, Philips Petroleum Company ntawm Tebchaws Meskas tau tshawb pom tias nrog chromium oxide-silica-alumina ua ib qho catalyst, ethylene tuaj yeem ua polymerized los ua cov polyethylene high-density polyethylene nyob rau hauv nruab nrab siab, thiab kev lag luam tsim tau pom nyob rau hauv 1957. Xyoo 1960, Lub Tuam Txhab Canadian DuPont tau pib ua cov polyethylene tsawg nrog ethylene thiab -olefin los ntawm txoj kev daws teeb meem. Xyoo 1977, Union Carbide Company thiab Dow Chemical Company ntawm Tebchaws Meskas tau ua tiav siv txoj kev siv hluav taws xob tsawg los ua cov polyethylene tsawg, hu ua linear low-density polyethylene, uas cov roj-theem txoj kev ntawm Union Carbide Company yog qhov tseem ceeb tshaj plaws. . Linear low-density polyethylene muaj cov khoom zoo sib xws rau polyethylene low-density, tab sis kuj muaj ob peb yam ntxwv ntawm high-density polyethylene. Tsis tas li ntawd, kev siv hluav taws xob hauv kev tsim khoom yog tsawg, yog li nws tau tsim kho sai heev thiab tau dhau los ua ib qho ntawm qhov muag pom tshiab hluavtaws resins.