Lub thawv yas yog tsim los ntawm ob yam khoom siv: PP (polypropylene) thiab PE (polyethylene).
1. PP (Polypropylene)
Khoom: Polypropylene yog ib yam tsis muaj - tshuaj lom, tsis muaj ntxhiab, thiab mis nyuj dawb, crystalline polymer heev. Nws muaj kev tiv thaiv kub zoo heev thiab tuaj yeem tswj nws qhov kev ua haujlwm ntawm qhov kub thiab txias. Nws kuj muaj qhov cuam tshuam tsis zoo thiab lub zog txhua yam.
Daim ntaub ntawv: Vim yog cov khoom zoo heev, polypropylene yog siv dav hauv kev tsim cov thawv yas. Cov thawv ua los ntawm cov khoom siv no tsis yog tsuas yog hnav thiab ruaj khov, tab sis kuj tuaj yeem tiv taus qee qhov hnyav thiab siab, ua rau lawv tsim nyog rau khaws cia thiab thauj ntau yam khoom, suav nrog cov khaub ncaws.
2. PE (Polyethylene)
Cov Khoom Siv: Polyethylene yog cov thermoplastic uas muaj qhov yooj yim heev, cuam tshuam tsis kam, thiab tshuaj lom neeg tsis kam. Nws qhov tsawg ntom ntom ua rau lub thawv nws ua rau lub teeb hnyav.
Daim ntaub ntawv: Cov thawv yas ua los ntawm polyethylene yog dav siv nyob rau hauv ob qho tib si lub neej txhua hnub thiab kev lag luam ntau lawm. Lawv tuaj yeem siv los khaws cov zaub mov, khoom siv niaj hnub, cov khoom lag luam, thiab lwm yam khoom, thiab yog cov dej noo- pov thawj, plua plav- pov thawj, thiab kab - pov thawj. Thaum polyethylene lub tshav kub tsis kam yog me ntsis qis dua li ntawm polypropylene, nws tseem ua haujlwm zoo ntawm chav tsev kub.
Hauv cov ntsiab lus: PP thiab PE yog ob qho khoom siv feem ntau siv rau cov thawv yas. Txhua tus muaj cov khoom tshwj xeeb thiab kev siv, tso cai rau koj xaiv qhov zoo raws li koj xav tau. Txawm hais tias siv los khaws khaub ncaws lossis lwm yam khoom, cov hnab yas ua los ntawm ob qho khoom muab kev tiv thaiv kev ruaj ntseg thiab kev daws teeb meem yooj yim.
