Cov khoom siv melamine puas ua rau lub cev puas tsuaj?

Yav dhau los, cov khoom siv melamine tau raug tshawb fawb thiab txhim kho tas li, thiab muaj ntau tus neeg siv nws. Nws siv dav hauv cov tsev so, cov khw noj mov ceev ceev, cov khw muag khoom qab zib thiab lwm qhov chaw. Txawm li cas los xij, qee tus neeg tsis ntseeg txog kev nyab xeeb ntawm cov khoom siv melamine. Cov khoom siv melamine puas yog yas lom? Puas yuav ua rau tib neeg lub cev puas tsuaj? Cov kws tshaj lij ntawm cov chaw tsim khoom siv melamine yuav piav qhia rau koj txog qhov teeb meem no.

Cov tais diav melamine yog ua los ntawm cov hmoov melamine resin los ntawm kev cua sov thiab nias. Cov hmoov melamine yog ua los ntawm melamine formaldehyde resin, uas kuj yog ib hom yas. Nws yog ua los ntawm cellulose ua cov khoom siv hauv paus, ntxiv cov xim thiab lwm yam khoom ntxiv. Vim tias nws muaj cov qauv network peb-seem, nws yog cov khoom siv thermoset. Tsuav yog siv cov tais diav melamine tsim nyog, nws yuav tsis tsim cov tshuaj lom lossis kev puas tsuaj rau tib neeg lub cev. Nws tsis muaj cov khoom siv hlau hnyav, thiab yuav tsis ua rau muaj hlau lom hauv tib neeg lub cev, thiab nws yuav tsis ua rau muaj qee yam tsis zoo rau kev loj hlob ntawm cov menyuam yaus raws li kev siv cov ntawv ci txhuas rau zaub mov hauv cov khoom txhuas mus sij hawm ntev.

Vim tias tus nqi ntawm cov hmoov melamine nce ntxiv, qee tus tub luam tsis muaj kev ntseeg siab siv cov hmoov urea-formaldehyde molding ncaj qha ua cov khoom siv raw los tsim lawv kom tau txiaj ntsig; qhov chaw sab nraud yog coated nrog ib txheej ntawm melamine hmoov. Cov tais diav ua los ntawm urea-formaldehyde yog qhov tsis zoo rau tib neeg lub cev. Qhov no yog vim li cas qee tus neeg xav tias melamine tableware yog qhov tsis zoo.

Thaum cov neeg siv khoom yuav khoom, lawv yuav tsum mus rau lub khw muag khoom lossis lub khw loj ua ntej. Thaum yuav khoom, xyuas seb cov khoom siv hauv rooj tog puas muaj qhov tsis zoo, qhov sib txawv ntawm xim, qhov chaw du, hauv qab, thiab lwm yam. Seb nws puas tsis sib xws thiab seb tus qauv applique puas meej. Thaum cov khoom siv hauv rooj tog xim raug so rov qab thiab tawm nrog daim ntaub so tes dawb, seb puas muaj qhov tshwm sim xws li ploj mus. Vim yog cov txheej txheem tsim khoom, yog tias daim ntawv nplaum muaj qee qhov crease, nws yog qhov ib txwm muaj, tab sis thaum cov xim ploj mus, sim tsis txhob yuav nws.