Thawj lub hom phiaj ntawm kev kho cov ntim cov khib nyiab pov tseg yog siv cov thawv ntim khoom siv los tiv thaiv cov peev txheej tsawg thiab ua kom tiav cov khoom ntim rov qab.Ntawm lawv, 28% ntawm PET (polyethylene terephthalate) lub raj mis siv rau cov dej haus carbonated tuaj yeem siv dua, thiab HD-PE (high-density polyethylene) thiab HD-PE ntawm lub fwj mis kuj tuaj yeem siv tau zoo.Txhawm rau pab txhawb kev rov ua dua tshiab ntawm ntau hom khoom yas tom qab noj, nws yog ib qho tsim nyog los txheeb xyuas ntau hom khoom yas.Vim tias muaj ntau thiab ntau txoj kev siv cov yas yas, nws yog ib qho nyuaj rau kev paub qhov txawv ntawm qee hom khoom yas tom qab noj yooj yim los ntawm cov tsos.Yog li ntawd, nws yog qhov zoo dua los khij cov khoom siv ntawm cov khoom yas.Dab tsi yog kev siv, qhov zoo thiab qhov tsis zoo ntawm cov lej sib txawv?Cov ntsiab lus ntawm SPI yas txheeb xyuas cov tswv yim yuav qhia hauv qab no.
Lub npe yas - cov lej thiab cov lej sib raug zoo yog raws li hauv qab no:
Polyester - 01 PET(PET lub raj mis), xws lilub raj mis dej ntxhiathiab carbonated haus lub raj mis.Tswv yim: Tsis txhob rov siv cov dej kub hauv lub raj mis haus.
Siv: Nws yog kub-resistant rau 70 ℃, thiab tsuas yog haum rau sau cov dej qab zib sov los yog dej khov.Yog tias nws tau ntim nrog cov kua kub kub lossis kub, nws yooj yim rau deform, thiab cov khoom tsim kev puas tsuaj rau tib neeg lub cev yuav yaj.Ntxiv mus, cov kws tshawb fawb pom tau tias tom qab siv 10 lub hlis, No.Yog li ntawd, thaum siv lub raj mis haus, muab pov tseg, thiab tsis txhob siv lub khob dej los yog lub thawv ntim khoom kom nqa lwm yam khoom, kom tsis txhob muaj teeb meem kev noj qab haus huv.
High density polyethylene - 02 HDPE, zoo licov khoom siv tuthiab cov khoom siv da dej.Tswv yim: Nws tsis pom zoo kom rov ua dua yog tias kev ntxuav tsis tiav.
Siv: Nws tuaj yeem rov qab siv tau tom qab ua tib zoo tu, tab sis cov thawv no feem ntau tsis yooj yim los ntxuav.Cov khoom siv tu thawj tseem nyob thiab dhau los ua qhov kub ntawm cov kab mob.Koj yuav zoo dua tsis rov ua dua lawv.
PVC - 03 PVC, xws li qee cov khoom siv kho kom zoo nkauj
Siv: Cov khoom no yooj yim los tsim cov khoom tsis zoo thaum nws kub, thiab txawm tias nws yuav raug tso tawm thaum lub sijhawm tsim khoom.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, yug me nyuam thiab lwm yam kab mob.Tam sim no, cov thawv uas ua los ntawm cov khoom siv no tsis tshua siv rau ntim khoom noj.Yog tias nws siv, tsis txhob cia nws sov.
Tsawg ntom polyethylene - 04 LDPE, xws li cov yeeb yaj kiab tshiab, yas zaj duab xis, thiab lwm yam. Cov lus qhia: Tsis txhob muab cov yas qhwv rau ntawm cov khoom noj rau hauv qhov cub microwave.
Siv: Lub tshav kub tsis muaj zog.Feem ntau, cov khoom tsim nyog PE cov yeeb yaj kiab khaws cia yuav yaj thaum qhov kub siab tshaj 110 ℃, ua rau qee cov yas tsis tuaj yeem decomposed los ntawm tib neeg lub cev.Tsis tas li ntawd, yog tias cov zaub mov qhwv nrog yas qhwv rau cua sov, cov roj hauv cov zaub mov tuaj yeem yooj yim yaj cov khoom tsis zoo hauv cov ntaub qhwv yas.Yog li ntawd, thaum cov zaub mov tau muab tso rau hauv lub qhov cub microwave, cov ntaub qhwv tshiab yuav tsum tau muab tshem tawm ua ntej.
Polypropylene - 05 PP(muaj peev xwm tiv taus qhov kub siab tshaj 100 ℃), xws limicrowave qhov cub noj su box.Tswv yim: Tshem lub hau thaum muab tso rau hauv lub qhov cub microwave
Siv: Tsuas yog lub thawv yas uas tuaj yeem muab tso rau hauv lub qhov cub microwave tuaj yeem rov qab siv dua tom qab ua tib zoo tu.Kev saib xyuas tshwj xeeb yuav tsum tau them rau qee lub qhov cub microwave noj su.Lub thawv lub cev yog ua los ntawm No. 5 PP, tab sis lub thawv npog yog ua los ntawm No. 1 PE.Txij li 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.Yuav kom nyob rau sab nyab xeeb, tshem lub hau ua ntej muab lub ntim rau hauv lub qhov cub microwave.
Polystyrene - 06 PS(Lub tshav kub tsis kam yog 60-70 ° C, cov dej kub kub yuav tsim cov co toxins, thiab cov styrene yuav raug tso tawm thaum hlawv) Piv txwv li: lub tais ntim cov noodles ntim, cov thawv ntim khoom noj ceev
Cov lus qhia: Tsis txhob siv lub qhov cub microwave los ua cov tais ntim cov noodles: nws yog qhov kub thiab txias, tab sis tsis tuaj yeem muab tso rau hauv lub qhov cub microwave kom tsis txhob tso cov tshuaj vim qhov kub thiab txias.Thiab nws tsis tuaj yeem siv los thauj cov kua qaub uas muaj zog (xws li kua txiv kab ntxwv) thiab cov tshuaj muaj zog alkaline, vim nws yuav decompose polystyrene uas tsis zoo rau tib neeg lub cev thiab yooj yim ua rau mob qog noj ntshav.Yog li ntawd, koj yuav tsum sim kom tsis txhob ntim cov zaub mov kub hauv lub thawv khoom noj ceev.
Lwm cov lej yas – 07 Lwm yamxws li: kettle, khob, mis nyuj lub raj mis
Cov lus qhia: PC kua nplaum tuaj yeem siv tau thaum tshav kub tso tawm bisphenol A: nws yog cov khoom siv dav siv, tshwj xeeb tshaj yog nyob rau hauv lub raj mis mis.Nws yog qhov tsis txaus ntseeg vim tias nws muaj bisphenol A. Lin Hanhua, tus kws tshaj lij hauv Department of Biology thiab Chemistry ntawm City University of Hong Kong, tau hais tias txoj kev xav, tsuav yog BPA hloov mus rau hauv cov qauv yas 100% thaum lub sijhawm ua PC. , nws txhais tau hais tias cov khoom tsis muaj BPA, cia nyob ib leeg tso nws.Txawm li cas los xij, yog tias ib qho me me ntawm bisphenol A tsis hloov mus rau hauv cov qauv yas ntawm PC, nws yuav raug tso tawm rau hauv cov zaub mov lossis dej haus.Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tau ceev faj thaum siv lub thawv yas no.
Post lub sij hawm: Dec-16-2022