Hauv cov txheej txheem ntawm kev kho kom zoo nkauj hauv tsev, kev xaiv thiab kev teeb tsa cov kav dej yog qhov tseem ceeb heev.
1. PE-RT yog polyethylene tshav kub-resistant polyethylene, uas yog non-crosslinked polyethylene uas yuav siv tau rau hauv cov kav dej kub. Qee tus neeg hais txog nws cov yam ntxwv tsis sib xws thiab hu nws "siab kub resistant non-crosslinked polyethylene". . Nws yog ib tug nruab nrab-density polyethylene tsim los ntawm ib tug tshwj xeeb molecular tsim thiab synthesis txheej txheem. Nws siv cov txheej txheem ntawm copolymerization ntawm ethylene thiab octene, thiab tau txais cov qauv molecular tshwj xeeb los ntawm kev tswj tus naj npawb thiab kev faib tawm ntawm cov saw hlau los txhim kho qhov tsis kam ntawm PE. kub sex.
2. Vim muaj cov octene luv-chain ceg ntoo, cov macromolecules ntawm PE tsis tuaj yeem crystallized nyob rau hauv ib daim ntawv siv lead ua, tab sis khiav los ntawm ob peb crystals, tsim ib qho kev sib txuas ntawm cov muaju, uas khaws qhov zoo ntawm PE, siab thermal conductivity thiab inertness. , thiab tib lub sij hawm ua kom nws zoo dua nyob rau hauv siab tsis kam. Txoj kev hloov kho no zoo ib yam li PPR ntau hauv kev ua lag luam.
