Feem ntau muaj ib daim duab peb sab nrog ib tug xub nyob rau hauv qab ntawm lub khob yas, thiab muaj ib tug xov tooj nyob rau hauv daim duab peb sab.Cov neeg sawv cev tshwj xeeb yog raws li hauv qab no
No.1 PET polyethylene terephthalate
Lub raj mis dej ntxhia, carbonated haus fwj, thiab lwm yam. Thaum tshav kub kub resistant mus rau 70 ℃, yooj yim deform, thiab cov khoom tsim kev puas tsuaj rau tib neeg lub cev yaj.No. 1 yas yuav tso tawm carcinogen DEHP tom qab 10 lub hlis ntawm kev siv.Tsis txhob muab tso rau hauv lub hnub nyob rau hauv lub tsheb;Tsis txhob ntim cawv, roj thiab lwm yam khoom
No.2 HDPE siab ceev polyethylene
Hom tshuaj dawb lub raj mis, cov khoom tu (Lub raj mis ntxuav tais diav), cov khoom siv da dej.Tsis txhob siv nws ua lub khob dej lossis ua lub thawv rau lwm yam khoom.Tsis txhob rov ua dua yog tias kev ntxuav tsis tiav.
No.3 PVC polyvinyl chloride
Hom raincoats, cov khoom siv hauv tsev, cov yeeb yaj kiab yas, cov thawv yas, thiab lwm yam. Nws muaj cov yas zoo heev thiab tus nqi qis, yog li nws yog dav siv.Nws tsuas tuaj yeem tiv taus 81 ℃ Nws yooj yim los tsim cov khoom tsis zoo ntawm qhov kub thiab txias, thiab nws tsis tshua muaj siv hauv ntim khoom noj.Nws yog qhov nyuaj rau kev ntxuav thiab yooj yim kom nyob twj ywm.Tsis txhob rov ua dua.Tsis txhob yuav dej haus.
No.4 PE polyethylene
Common tshiab-txiav zaj duab xis, yas zaj duab xis,Roj Lub raj mis,lwm.Cov khoom tsis zoo yog tsim nyob rau hauv qhov kub thiab txias.Tom qab cov tshuaj lom neeg nkag mus rau hauv tib neeg lub cev nrog zaub mov, lawv tuaj yeem ua rau mob qog noj ntshav ntawm lub mis, qhov tsis zoo ntawm lub cev xeeb tub thiab lwm yam kab mob.Tsis txhob muab cov yas qhwv rau hauv lub qhov cub microwave.
No.5 PP polypropylene
Common soymilk fwj, yogurt lub raj mis, kua txiv hmab txiv ntoo haus lub raj mis, microwave qhov cub noj su box.Lub melting point yog siab li 167 ℃.Nws yog tus nkaus xwbyas ntim khoom nojuas tuaj yeem muab tso rau hauv lub qhov cub microwave thiab tuaj yeem rov qab siv tau tom qab ua tib zoo tu.Nws yuav tsum raug sau tseg tias rau qee qhov microwave qhov cub noj su lub thawv, lub thawv lub cev yog ua los ntawm No. 5 PP, tab sis lub thawv npog yog ua los ntawm No. 1 PE.Vim tias PE tsis tuaj yeem tiv taus qhov kub siab, nws tsis tuaj yeem muab tso rau hauv lub qhov cub microwave ua ke nrog lub thawv lub cev.
No.6 PS polystyrene
Cov tais ntim khoom noj ntawm cov noodles ntim khoom noj ceev ceev.Tsis txhob muab tso rau hauv lub qhov cub microwave kom tsis txhob tso cov tshuaj vim qhov kub thiab txias.Tom qab loading acid (xws li kua txiv kab ntxwv) thiab alkaline tshuaj, carcinogens yuav decomposed.Tsis txhob ntim cov zaub mov kub hauv lub thawv khoom noj ceev.Tsis txhob noj cov tais diav ntawm cov noodles hauv lub qhov cub microwave.
No.7 PC lwm tus
Cov fwj dej ntau, qhov chaw khob, lub raj mis mis.Cov khw muag khoom feem ntau siv khob dej ua los ntawm cov khoom siv no ua khoom plig.Nws yog ib qho yooj yim los tso cov tshuaj lom bisphenol A, uas yog teeb meem rau tib neeg lub cev.Tsis txhob sov nws thaum siv, thiab tsis txhob qhuav nws nyob rau hauv lub hnub
Post lub sij hawm: Lub Xya hli ntuj-29-2022