Kev faib tawm ntawm Cov Khoom Uas Muag Yas Rov Qab
Lub hnab yas zom khoom yas tau tsim los ntawm cov koom haum ntawm Kev Lag Luam Kev Lag Luam Plastics hauv 1988. Cov txheej txheem no sawv cev rau cov cim qhia cov khoom yas yog luam tawm rau hauv cov thawv lossis pob, los ntawm No. 1 mus Tsis Tau. rov qab siv cov txheej txheem yooj yim. Txhua lub thawv ntim khoom yas muaj cov cim me me - lub cim ntawm daim duab peb sab, feem ntau tso rau hauv qab ntawm cov thawv yas. Muaj 1 rau 7 zauv nyob hauv daim duab peb sab. Txhua tus lej sawv cev ntawm hom yas. Lawv yog ua los ntawm cov khoom sib txawv thiab cov txheej txheem sib txawv ntau lawm.
Tsis tau. 1 PET (polyethylene terephthalate)
Cov tsiaj yog feem ntau siv rau hauv cov taub dej hauv dej thiab cov kua dej hauv cov taub dej, nws yuav deformed ntawm 70℃thiab yaj tawm cov tshuaj phem. Tom qab 10 lub hlis ntawm kev siv Tsis. 1 plastics, nws tuaj yeem tso cov carcinogen DEHP. Tsis txhob tso rau hauv lub tsheb nyob hauv qab lub hnub, tsis txhob sau dej cawv, roj, thiab lwm yam.
Tsis tau. 2 HDPE (Kev kub ceev Polyethylene)
Cov tshuaj rau xab npum, tshuaj zawv plaub hau, da dej da dej, roj ua noj, tshuaj tua kab, thiab lwm yam feem ntau ua los ntawm HDPE. HDPE ntim cov khoom siv feem ntau opaque thiab kov zoo li ciab.
HDPE feem ntau siv rau hauv cov raj tshuaj dawb, cov khoom tu thiab cov khoom siv da dej. Tsis txhob siv 0010010 # 39; t Siv nws ua lub khob dej lossis siv ua chaw ntim khoom. Tsis txhob 0010010 # 39; t rov siv yog tias nws 0010010 # 39; s tsis huv huv.
Tsis tau. 3 PVC (polyvinyl chloride)
PVC feem ntau yog siv los ua cov kav dej, nag, khaub hnab, tsev kawm ntawv, cov khoom siv tsev, yas yeeb yaj kiab, thiab lub thawv yas.
PVC ntim tau siv dav vim tias lawv cov khoom zoo nkauj yas thiab cov nqi qis. Lawv tuaj yeem tiv taus thaum tshav kub kub ntawm 81 ℃Cov. Lawv nquag ua cov khoom phom sij ntawm cov kub thiab tsis tshua muaj siv hauv cov khoom ntim. Yooj yim tawm cov khoom seem thiab nyuaj rau ntxuav. Tsis txhob rov siv dua thiab tsis txhob siv 0010010 # 39; tsis txhob yuav nws yog tias lawv siv rau dej haus
Tsis tau. 4 LDPE (Tsis tshua muaj ntau Polyethylene)
Cov hnab yas zaws txhua qhov feem ntau yog ua los ntawm LDPE, Nws tseem feem ntau siv hauv cov ntawv yas, yas zaj duab xis thiab lwm yam. Nws yuav tsim cov tshuaj phem rau thaum kub. Tsis txhob muab ntaub yas qhwv rau hauv lub qhov cub microwave
Tsis tau. 5 PP (polypropylene)
PP yog siv los ua cov dej haus, cov thoob khib nyiab, cov thoob pob tawb, cov thawv ntim zaub mov rau microwave ncu. Nws tuaj yeem tiv taus siab kub kom txog 167℃Cov. Nws yog lub thawv yas nkaus xwb uas tuaj yeem tso rau hauv lub qhov cub microwave. Nws tuaj yeem rov qab siv dua tom qab tau ua tib zoo tu.
Tsis tau. 6 PS (polystyrene)
PS feem ntau yog siv los ua cov tsev tsim khoom, cov khoom ua si, ntawv sau, thawv lossis cov tais diav siv vim nws qhov nqus dej tsawg.
Nws yuav tsum tsis txhob tso rau hauv lub qhov cub microwave kom tsis txhob tso cov tshuaj vim tias muaj qhov kub thiab txias ntau dhau.PS cov thawv ntim yuav ua rau cov nyom carcinogens thaum muaj cov kua qaub (xws li kua txiv kab ntxwv) thiab cov kuab tshuaj alkaline. Tsis txhob ntim cov zaub mov kub hauv cov thawv ceev ceev.
Tsis yog. 7 Lwm yam
Lwm hom plastics. (Xws li PC, siv nyob rau hauv kettles, qhov chaw siv lub khob, cov taub mis. Nylon, feem ntau siv rau cov ntawv xov thiab muaj qee qhov khoom siv hauv tsev. PC yog yooj yim los tso cov tshuaj lom BPA (Bisphenol A) ntawm qhov kub thiab txias, uas ua rau muaj kev phom sij rau tib neeg lub cev. )
