Yas ntim fwj ntim tshiab expansion, yas ntim fwj Fab Peb paub tias yas raj ntim daim ntawv thov yog qhov dav heev, tab sis tseem muaj qee qhov chaw tsis txhob siv cov yas hwj ntim. Cov cheeb tsam no yeej ib txwm siv cov hnab yas, ntawv thiab lwm cov ntawv ntim, los yog qee yam khoom tuaj. Cov khoom no nyob rau hauv xyoo tsis ntev los pib siv cov yas hwj, lub hnab ntim tau ua ib qho tshiab ntawm kev nthuav dav.
Cov fwj yas no vim qhov tshwm sim ntawm cov chaw ntim khoom tshiab, ntau tus tub lag luam nyob rau lub sijhawm ntawm kev yuav khoom, pom los nrhiav cov khoom hom phiaj. Muaj ntau ntawm peb lub raj mis yas manufacturers nyob rau hauv lub sib tw tsiv hauv lub lag luam, lub qhov muag tsis muab mus rau hauv cov cheeb tsam emerging. Hauv no, kuv xav hais tias qee tus neeg ua lag luam tuaj yeem nrhiav lwm txoj kev, thiab nquag rau hauv cov chaw no, tsim cov khoom tshiab no los txhim kho, lossis yuav tau txais txoj hauv kev zoo rau txoj kev loj hlob
Lub ntsiab lus ntawm qab ntawm lub hwj yas haus
1 sawv cev ntawm tus tsiaj (polyethylene terephthalate): Tam sim no, cov dej ntxhua hauv cov dej, cov dej qab zib thiab cov dej haus dej haus dej haus dej haus yog siv cov khoom no. Kub-resistant rau 70 ℃ yooj yim rau deformation, siv 10 lub hlis yuav tso tau carcinogens. Tsis txhob muab cov dej ntxhua hauv cov pa qhib los yog lub tsheb, tsis txhob cia rau hauv lub raj mis dej rau hauv dej.
2 nyob rau ntawm HDPE (high density polyethylene): siv rau lub chaw ua khoom ntawm cov khoom ntxuav, cov khoom siv da dej, thawv fwj. Txhim kho siab kub, tab sis tsis yooj yim los ntxuav, yooj yim rau cov kab mob yug, nws pom zoo kom tsis txhob siv.
3 sawv cev ntawm PVC (polyvinyl chloride): Cov khoom siv no yooj yim los tsim cov khoom yas khoom tsim teeb meem los ntawm ob qho, ib qho tsis yog tag nrho polymerized nyob rau hauv cov txheej txheem qhuav ntawm ib molecular yas chloride, qhov thib ob yog teeb meem hauv cov khoom yas yas. Cov ob yam hauv lub ntsej muag kub thiab roj yooj yim tso tawm, lom cov khoom noj rau hauv tib neeg lub cev, yooj yim ua rau mob cancer.
4 rau sawv cev ntawm LDPE (tsis tshua muaj tuab polyethylene): kev ua lag luam tam sim no, yas yeeb yaj duab, yas yeeb yaj duab thiab lwm yam khoom siv ntau hom, kev kub ntawm lub cev tsis muaj zog, tsim nyog PE yas zaj duab xis thaum kub tshaj 110 ℃ thaum twg yuav muaj kub qhuav phenomenon, nrog cov membrane qhwv cov zaub mov cua sov, cov zaub mov hauv cov roj yog yooj yim rau cling rau cov teeb meem nyob hauv cov hnab yas tawm. Khoom noj rau hauv lub microwave ua ntej cua sov, yuav tsum tau muab tshem tawm qhwv yas yas.
5 sawv cev ntawm PP (polypropylene): microwave noj su ntawm cov khoom siv no, tiv taus 130 ℃ siab, tsis muaj kev vam meej. Qhov no yog lub thawv nkaus xwb uas yuav muab tso rau hauv lub qhov cub microwave thiab tuaj yeem rov qab siv tau tom qab ua tib zoo tu. Qee qhov cov khoom noj tau tsim ntawm 5 PP, tab sis lub hau yog ua los ntawm 6 PS (polystyrene), PS transparency zoo, tab sis tsis kub high, nws tsis tuaj yeem muab tso nrog lub thawv rau hauv lub microwave.
