Niaj hnub no yuav luag txhua lub tsev muaj tsawg kawg nkaus ntawm cov yas, cov tais diav uas siv tas pov tseg. Piv txwv li, tsis ntev dhau los ntawm noj mov, lawv nqa cov plooj (porcelain), iav, cov tais diav, thiab tom qab so tas nws yuav tsum coj rov qab mus tsev thiab ntxuav kom zoo. Qhov no yog qhov zoo tshaj plaws overshadowed los ntawm lub hostess tus so.
Keeb kwm ntawm cov tais diav uas siv tau
Thaum pib ntawm lub xyoo pua 20th, cov ntaub ntawv pov tseg uas tshwm hauv lub tebchaws USA no tau tshwm sim. Pib, tsuas yog cov ntawv khob tau tsim, tom qab ntawd lawv pib ua kom muaj diav, daim hlau, riam, rab phom. Thiab nyob rau xyoo 1950, thaum lub lauj kaub tais diav ntau lawm, cov ntaub ntawv polymer pib hloov ntawv. Txawm li cas los xij, cov tuam txhab niaj hnub no rov qab los ua cov ntawv tais diav, vim nws yog ib qho zoo thiab tsis muaj tshuaj lom.
Peb lub teb chaws kuj pib tsim cov tais diav nrog cov ntawv khob, tab sis qhov zoo thiab tsos tshuav ntau dhau los ua qhov dej siab, piv txwv li, haus dej kub fes thiab tsis tau kub hnyiab, nws yog ib qho tsim nyog muab tso rau ib khob mus rau lwm lub.
Hauv USSR muaj ob peb lub koom haum kho mob ceev ceev, thiab tsis muaj ib qho khoom siv rau cov tais diav khoom siv. Tom qab ib lub sij hawm, los yog ntau nyob rau hauv nruab nrab-1990s, Russia pib tsim ntawv thiab cov tais diav yas, dhau mus, nyob rau hauv zoo tsis zoo rau European thiab American.
Kev nyab xeeb, zoo, khoom siv zog - cov no yog cov ntsiab lus tseem ceeb uas niaj hnub siv rau cov khoom siv pov tseg.
Ntsuas cov tais diav yas
Thaum lub caij ntawm polymerization ntawm cov ntsiab lus, hmoov tsis, nws yog tsis yooj yim sua kom tag nrho cov molecules tau mus txog qhov loj me me, yog li ntawd ib co molecules tseem active, uas txhais tau hais tias lawv muaj peev xwm nkag mus rau hauv cov ntsiab lus ntawm lub lauj kaub tais diav, thiab tom qab ntawd ces mus rau tib neeg lub cev. Cov txheej txheem ceev nrooj thaum kub tshuaj yej los yog kas fes yog ua rau cov tais diav xws li cov zaub mov kub.
Qee cov khoom yas muaj ntsev cov hlau hnyav, teeb meem ruaj ntseg, thiab ntau yam tshuaj lom uas, thaum rhuab, nkag mus rau peb lub cev, thiab rov qab siv dua, ntau dua. Yog li, tsis muaj cov ntaub ntawv tsim nyog koj rov qab siv dua cov zaub mov uas siv tas pov tseg.
Acrylic thiab styrene tais diav tsis kim thiab xav tias nws yog unbreakable. Txawm li cas los xij, hauv kev xyaum, styrene cov zaub mov feem ntau tawg. Xws li cov tais diav tau rov qab siv tau, nws tuaj yeem ntxuav los ntawm tes los yog hauv lub tshuab ntxuav tais diav, tab sis nws tsis tuaj yeem muab tso rau hauv lub qhov cub microwave.
Polypropylene yog ib qho pheej yig cov khoom siv rau cov khoom tsim tawm. Cov khoom siv los ntawm cov khoom siv no muaj peev xwm tiv taus kub txog 100 o C. Nws yog siv rau cov picnics, cov tog neeg thiab lwm yam txheej xwm uas muaj nyob hauv cov huab cua ntshiab. Xws li cov tais diav tau ntxuav los ntawm txhais tes, tab sis nws muaj peev xwm nyob rau hauv lub tshuab ntxuav tais diav. Polypropylene dishes kuj siv tau rau hauv lub qhov cub microwave.
Polycarbonate yog ib yam khoom zoo thiab kim heev (nws kim nqi 5-6 zaug ntau dua). Los ntawm cov ntaub ntawv no coj los rau cawv ua. Cov tshuaj Polycarbonate tuaj yeem ntxuav thiab siv hauv lub qhov cub microwave.
Cov tais diav uas ua los ntawm polystyrene tuaj yeem muaj peevxwm sib txawv, thiab, raws li txoj cai, muaj cov cim rau ntawm nws, tab sis feem ntau cov tais diav no yog tsim rau cov khoom ua si.
Foamed polystyrene rau cua sov yog ruaj khov: nyob rau hauv xws li cov tais diav uas koj tuaj yeem hlaub cov zaub mov kub los yog tshuaj yej, thiab raws li cov tshooj ntawm cov tshav kub tsis zoo, nws yuav tsis hlawv koj txhais tes. Xws li cov tais diav tau yooj yim los ntxuav hauv tshuab ntxuav tais diav, nws siv tau rau hauv lub qhov cub microwave.
Ntawm melamine nyob rau hauv lub tshuaj ua lag luam, raws li paub, ntau yam ntawm thiaj li hu formaldehyde resin yog tau. Hauv cov tais diav ntawm melamine, feem ntau yog ib qho loj ntawm formaldehyde, uas yog lom rau tib neeg, thiab feem ntau cov ntsiab lus ntawm cov khoom no muaj ntau tshaj li cov cai ntawm ntau zaus los ntawm ntau ntau zaus. Lauj kaub tais diav los ntawm melamine nws tus kheej yog txaus ntshai thiab cuam tshuam rau lub cev tsis zoo, yog li txawm tias cov neeg tsim tawm tswj qee zaum ntxiv rau nws rau lub zog asbestos, uas tuaj yeem tsim txoj kev mob cancer. Tias yog vim li cas cov khoom siv ceased siv cov asbestos. Tsis tas li ntawd nws yog ib qhov tsim nyog los ncuav nyob rau hauv xws li tais diav dab tsi kub, thiaj li nyob rau hauv ib zaug formaldehyde pib muab. Zoo, cov duab kos rau ntawm cov tais diav li no yuav tsum ceev ceev ntawm cov xim muaj xim, uas muaj hmoov lead ntxiv.
Cov tais diav ib zaug yog ua los ntawm polyvinyl chloride. Qhov zoo ntawm cov khoom siv no - nws yog teeb, ruaj, pheej yig, tsim rau ntau zaus thiab yooj yim los ntxuav. Tab sis peb tsis paub txog cov volatility thiab toxicity ntawm polyvinyl chloride los ntawm cov producers: cov khoom disintegrates sai sai yog hais tias ib tug haus yog poured rau hauv lub raj mis ntawm cov khoom no, ces co toxins yuav sai sai nkag rau hauv nws, thiab ces cov co toxins no nkag mus rau peb lub cev.
Thiab txawm hais tias cov kws kho mob hais tias qhov no tsis txaus ntshai rau peb lub cev, txawm li cas los, los ntawm absorbing milligrams ntawm co toxins txhua hnub, ib tug tsis saib xyuas uas txaus ntshai kab mob tau tshwm sim. Thaum kawg, txhua yam khoom noj yas tsis haum rau peb txoj kev noj qab haus huv. Tsis tshua siv cov teeb meem tangible no.
Thiab lub npe heev ntawm "disposable tableware" hais lus rau nws tus kheej, nws yog npaj rau kev siv sib koom ua ke, tiam sis tsis yog rau kev rov ua dua. Tab sis, hmoov tsis, peb cov compatriots tsis txhob them cov xim rau qhov no. Xws li cov tais diav yuav tsum muab pov tseg tam sim tom qab siv thawj zaug, vim hais tias nws tsim tau rau lub hom phiaj no.
Conscientious cov producers ntawm lawv cov khoom yuav muab tso rau cov cim, thiab cov tais diav tsis kos, tsuas yog yuav tsum tau kawm kom to taub cov cim. Piv txwv, PS hais tias cov tais diav uas ua los ntawm polystyrene, thiab yog li ntawd, nws yuav tsum tsis txhob muaj ntaub ntawv thiab poured kub, nrog rau cov khoom noj uas koj yuav tau toxins uas ua kom lub siab puas ntsoog. Kev xaiv PP qhia tau hais tias cov tais diav uas yog ua los ntawm polypropylene, uas ruaj khov rau cua sov, yog li koj tuaj yeem siv haus dej cawv kom sov thiab haus cov tais diav. Txawm li cas los xij, yog tias qhov no yog ib cov ntaub ntawv pov tseg, koj tseem yuav tsum tsis txhob rov qab siv dua.