Khoom noj khoom haus qib plastics muab faib ua: PET (polyethylene terephthalate), HDPE (siab ntom ntom polyethylene), LDPE (tsis tshua muaj ntom polyethylene), PP (polypropylene), PS (polystyrene), PC thiab lwm yam.

PET (polyethylene terephthalate)

Feem ntau siv: lub raj mis dej ntxhia, carbonated haus fwj, thiab lwm yam.
Lub raj mis dej ntxhia thiab carbonated haus fwj yog ua los ntawm cov khoom siv no.Cov fwj dej haus tsis tuaj yeem rov ua dua tshiab rau cov dej kub, thiab cov khoom siv no tuaj yeem tiv taus kub txog 70 ° C.Nws tsuas yog tsim nyog rau cov dej sov los yog khov, thiab yooj yim deformed thaum muaj cov kua dej kub los yog ua kom sov, nrog cov khoom tsim kev puas tsuaj rau tib neeg leaching tawm.Ntxiv mus, cov kws tshawb fawb tau pom tias tom qab 10 lub hlis ntawm kev siv, cov khoom yas no tuaj yeem tso cov carcinogens uas muaj tshuaj lom rau tib neeg.

Vim li no, cov fwj dej haus yuav tsum muab pov tseg thaum lawv ua tiav thiab tsis siv los ua khob lossis cov thawv ntim rau lwm yam khoom kom tsis txhob muaj teeb meem kev noj qab haus huv.
PET yog thawj zaug siv los ua ib qho hluavtaws fiber ntau, nrog rau hauv zaj duab xis thiab daim kab xev, thiab tsuas yog xyoo 1976 nws tau siv hauv lub raj mis haus.PET tau siv los ua cov khoom ntim hauv qhov uas feem ntau hu ua 'PET lub raj mis'.

Lub raj mis PET muaj qhov ua tau zoo thiab tawv, yog lub teeb (tsuas yog 1/9 txog 1/15 ntawm qhov hnyav ntawm lub raj mis), yooj yim nqa thiab siv, siv zog tsawg dua hauv kev tsim khoom, thiab yog impermeable, non-volatile thiab resistant. rau acids thiab alkalis.

Nyob rau hauv xyoo tas los no, nws tau dhau los ua lub thawv ntim tseem ceeb rau cov dej haus carbonated, tshuaj yej, kua txiv hmab txiv ntoo, ntim cov dej haus, cawv thiab kua ntses, thiab lwm yam. Tsis tas li ntawd, cov tshuaj ntxuav, tshuaj zawv plaub hau, roj zaub, khoom noj khoom haus, khoom noj qab zib, tshuaj, tshuaj pleev ib ce. , thiab cov dej haus cawv tau siv ntau hauv cov raj mis ntim khoom.

HDPE(High Density Polyethylene)

Feem ntau siv: ntxuav cov khoom, khoom siv da dej, thiab lwm yam.
Cov thawv yas rau cov khoom siv tu, cov khoom siv da dej, cov hnab yas siv hauv cov khw muag khoom loj thiab cov khw muag khoom feem ntau yog ua los ntawm cov khoom siv no, tuaj yeem tiv taus 110 ℃ kub kub, cim nrog cov hnab yas ntim khoom noj.Cov thawv yas rau cov khoom siv tu thiab cov khoom siv da dej tuaj yeem rov qab siv tau tom qab ua tib zoo tu, tab sis cov thawv no feem ntau tsis zoo ntxuav, tawm hauv cov khoom seem ntawm cov khoom siv tu qub, tig mus rau hauv qhov chaw yug me nyuam rau cov kab mob thiab kev tu tsis tiav, yog li nws yog qhov zoo tshaj plaws kom tsis txhob muaj cov kab mob. rov ua dua lawv.
PE yog cov yas siv ntau tshaj plaws hauv kev lag luam thiab lub neej, thiab feem ntau muab faib ua ob hom: high-density polyethylene (HDPE) thiab low-density polyethylene (LDPE).HDPE muaj cov ntsiab lus melting ntau dua li LDPE, yog qhov nyuaj thiab tiv taus ntau dua rau cov kua dej corrosive.

LDPE yog qhov dav dav hauv lub neej niaj hnub no, tab sis tsis yog vim cov thawv ntim khoom, tab sis vim yog cov hnab yas koj tuaj yeem pom txhua qhov chaw.Feem ntau ntawm cov hnab yas thiab cov yeeb yaj kiab yog ua los ntawm LDPE.

LDPE (Low Density Polyethylene)

Feem ntau siv: cling film, thiab lwm yam.
Cling zaj duab xis, yas zaj duab xis, thiab lwm yam yog ua los ntawm cov khoom no.Thaum tshav kub kub tsis muaj zog, feem ntau, tsim nyog PE cling zaj duab xis nyob rau hauv qhov kub ntawm ntau tshaj 110 ℃ yuav tshwm sim kub yaj tshwm sim, yuav tawm hauv ib co tib neeg lub cev tsis tuaj yeem decompose tus neeg sawv cev yas.Tsis tas li ntawd, thaum cov zaub mov yog rhuab nyob rau hauv cling zaj duab xis, cov roj nyob rau hauv cov zaub mov yuav yooj yim yaj cov teeb meem tshuaj nyob rau hauv zaj duab xis.Yog li ntawd, nws yog ib qho tseem ceeb kom tshem tawm cov hnab yas los ntawm cov zaub mov hauv microwave ua ntej.

PP (polypropylene)

Feem ntau siv: microwave su boxes
Microwave noj su lub thawv yog ua los ntawm cov khoom siv no, uas tiv taus 130 ° C thiab tsis pom zoo.Qhov no yog lub thawv yas nkaus xwb uas tuaj yeem muab tso rau hauv lub microwave thiab tuaj yeem rov qab siv tau tom qab ua tib zoo tu.

Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias qee lub thawv microwave yog ua los ntawm PP 05, tab sis lub hau yog ua los ntawm PS 06, uas muaj cov pob tshab zoo tab sis tsis tiv taus qhov kub siab, yog li nws tsis tuaj yeem muab tso rau hauv lub microwave ua ke nrog lub thawv.Yuav kom nyob rau sab nyab xeeb, tshem lub hau ua ntej muab lub ntim rau hauv lub microwave.
PP thiab PE tuaj yeem hais tias yog ob tug kwv tij, tab sis qee qhov khoom siv lub cev thiab lub zog zoo dua li PE, yog li cov neeg tsim lub raj mis feem ntau siv PE los ua lub cev ntawm lub raj mis, thiab siv PP nrog lub zog thiab lub zog ntau dua los ua lub hau thiab tuav. .

PP muaj qhov siab melting point ntawm 167 ° C thiab tiv taus cua sov, thiab nws cov khoom tuaj yeem ua kom tsis muaj menyuam.Cov fwj uas ua los ntawm PP feem ntau yog cov kua mis nyuj thiab cov mis nyuj, nrog rau cov fwj rau 100% cov kua txiv hmab txiv ntoo, yogurt, kua txiv hmab txiv ntoo, cov khoom siv mis nyuj (xws li paj npleg), thiab lwm yam. Cov thawv loj, xws li cov thoob, cov thoob, ntxhua khaub ncaws, pob tawb, pob tawb, thiab lwm yam, feem ntau yog ua los ntawm PP.

PS (polystyrene)

Feem ntau siv: lub tais ntawm noodle thawv, khoom noj ceev ceev
Cov khoom siv los ua cov tais ntim cov noodles thiab ua npuas ncauj ntim khoom noj ceev.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.Nws yuav tsum tsis txhob siv rau cov kua qaub uas muaj zog (xws li kua txiv kab ntxwv) lossis cov tshuaj alkaline, raws li polystyrene, uas tsis zoo rau tib neeg, tuaj yeem decomposed.Yog li ntawd, koj yuav tsum tsis txhob ntim cov zaub mov kub hauv cov ntim khoom noj ceev kom ntau li ntau tau.
PS muaj qhov nqus dej tsawg thiab muaj qhov ruaj khov, yog li nws tuaj yeem txhaj tshuaj molded, nias, extruded lossis thermoformed.Nws tuaj yeem yog txhaj molded, nias molded, extruded thiab thermoformed.Nws yog feem ntau cais raws li foamed los yog unfoamed raws li seb nws puas tau undergone "foaming" txheej txheem.

PCthiab lwm tus

Feem ntau siv: lub raj mis dej, mugs, lub raj mis mis
PC yog cov khoom siv dav siv, tshwj xeeb tshaj yog nyob rau hauv kev tsim cov mis nyuj lub raj mis thiab qhov chaw khob, thiab muaj kev tsis sib haum xeeb vim tias nws muaj Bisphenol A. Cov kws tshaj lij taw qhia tias nyob rau hauv txoj kev xav, tsuav yog BPA yog 100% hloov mus rau hauv cov qauv yas thaum lub sij hawm tsim khoom. PC, nws txhais tau hais tias cov khoom yog BPA-dawb kiag li, tsis txhob hais tias nws tsis tso tawm.Txawm li cas los xij, yog tias ib qho me me ntawm BPA 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, yuav tsum tau saib xyuas ntxiv thaum siv cov thawv yas no.
Qhov kub ntawm PC ntau dua, BPA ntau dua thiab tso tawm sai dua.Yog li ntawd, cov dej kub yuav tsum tsis txhob muab rau hauv PC dej fwj.Yog tias koj lub raj mis yog tus naj npawb 07, cov hauv qab no tuaj yeem txo qhov kev pheej hmoo: Tsis txhob tso cua sov thaum siv thiab tsis txhob tso nws ncaj qha tshav ntuj.Tsis txhob ntxuav lub kettle hauv lub tshuab ntxuav tais diav lossis lub tshuab ntxuav tais diav.

Ua ntej siv nws thawj zaug, ntxuav nws nrog baking soda thiab dej sov thiab qhuav nws nyob rau hauv chav tsev kub.Nws raug nquahu kom tsis txhob siv lub thawv yog tias nws muaj cov tee los yog tawg, vim tias cov khoom yas tuaj yeem yooj yim harbor cov kab mob yog tias lawv muaj qhov chaw zoo.Tsis txhob rov siv cov tais diav yas uas tsis zoo lawm.