Melamine yas?
Melamine tsis yog cov yas. Nws yog cov tshuaj tshwj xeeb uas hloov mus rau hauv cov khoom siv muaj zog thaum sib xyaw nrog lwm cov chaw sib txuas. Thaum rhuab thiab ua tiav, melamine ua ib cov khoom tawv uas tuaj yeem tswj cov khoom kub.
Cov ntaub ntawv coj ua rau txhua qhov hauv peb lub neej txhua hnub. Melamine pab ua cov tais diav loj, cov khoom noj, thiab cov khoom ntoo uas kav ntev ntev. Cov neeg feem ntau xaiv nws vim tias nws muaj zog tab sis nyhav tsawg dua li cov tais raj.
Koj yuav xav paub tias melamine ua zoo li cov yas li niaj zaus. Tsis zoo li cov teeb meem uas muaj peev xwm ua tau melted thiab rov kho dua, melamine tawv tas li ib zaug nws tau ua. Daim ntawv ntshiab, hu ua Melamine Hmoov 99.8%, pab cov tuam txhab ua cov khoom uas ua haujlwm zoo ib yam txhua lub sijhawm.
Cov ntaub ntawv no ua haujlwm zoo hauv cov chaw tsis khoom zoo li cov khw noj mov. Lawv tuaj yeem nqa ntau txoj kev ntxhib uas tsis muaj kev tawg. Melamine cov khoom siv tau ntev tshaj li cov tais diav yas li niaj zaus.
Cov khoom tuav tau zoo heev rau kev siv kub thiab niaj hnub siv. Qhov no ua rau nws zoo tag nrho rau cov khoom uas tau siv dhau los. Txawm hais tias nws yuav zoo li yas, melamine yog nws tus kheej cov khoom siv tshwj xeeb nrog tshwj xeeb zoo.
Nkag siab Melamine: Kev Sib Tw, Keeb Kwm, thiab Kev Lag Luam Kev Lag Luam
Melamine yog cov tshuaj sib txuas siv dav siv dav hauv kev tsim khoom. Nws cov qauv tshwj xeeb muaj lub nplhaib nplua nuj hauv nitrogen, ua rau nws txawv ntawm ntau lwm cov ntaub ntawv. Thaum sib xyaw nrog formaldehyde, melamine ua ib qho muaj zog, cua sov- cov khoom tiv thaiv. Siv Melamine Hmoov 99.8% yog qhov tseem ceeb rau kev ua kom siab- cov khoom zoo.
Zaj dab neeg ntawm Melamine pib thaum ntxov xyoo 1900s. Cov kws tshawb fawb xav tau cov khoom siv uas nyuaj li ceramics tab sis tuaj yeem ua tau zoo li yas. Melamine tau nrov heev vim tias nws yuav siv tau los ua ntau yam khoom sib txawv, los ntawm cov txee hauv chav ua noj rau cov tais diav. Tau ntau xyoo, cov tuam txhab uas tau txhim kho li cas lawv tau ua melamine.
Ntau qhov kev lag luam cia siab rau melamine hnub no vim nws cov tshwj xeeb tshwj xeeb. Cov ntaub ntawv qhia txhua qhov chaw, los ntawm chav ua noj txee rau cov phiaj thiab tais. Thaum cov tuam ntxhab siv Melamine Hmoov 99.8%, lawv tuaj yeem ua cov khoom lag luam zoo nrog tsawg khuam. Cov khoom lag luam no ntev dua thiab tiv thaiv tshav kub zoo dua li ntau txoj kev xaiv.
Melamine tau ua pov thawj nws tus tsim nyog hauv kev tsim khoom niaj hnub. Raws liBritannica ntawm melamine, cov khoom tseem tseem ceeb hauv ntau qhov kev lag luam. Nws cov kev ua tau zoo thiab lub zog ua rau nws xaiv qhov tseem ceeb rau kev ua cov khoom lag luam ruaj.
Melamine vs. Yas: Zoo sib xws thiab sib txawv
Melamine thiab yas saib zoo ib yam hauv ntau yam khoom txhua hnub. Cov ntaub ntawv no yeej muaj cov tuam tsev tsim qauv sib txawv heev thiab nta. Melamine los ntawm kev sib xyaw melamine thiab lwm yam tshuaj lom hu ua formaldehyde ua kom muaj cov khoom siv muaj zog. Tus txheej txheem tsim cov khoom siv nyuaj uas tuaj yeem ua kom muaj cua sov zoo dua li cov yas yas li qub. Feem ntau cov yas yog ua los ntawm cov saw ntev ntawm cov lwg me me uas muaj peev xwm yaj thiab rov kho dua.
Ntawm no yog cov ncauj lus piav qhia:
| Ntiag tug | Melamine Resin | Pa tshuaj |
|
Cov Qauv Tshuaj |
Hla - txuas thermoset |
Linear, ceg, los yog hla -} txuas polymers (sib txawv) |
|
Thaum Tshav Kub Kub Ua |
Zoo dua; tswj kev ncaj ncees dhau 150 degree |
Feem ntau qis dua; nquag ua si lossis deformation nyob rau hauv tshav kub |
|
NEEG KHO TSHUAB DURISHAB |
Tsuas yog nyuaj thiab tiv taus tawg |
Sib txawv; Ntau cov yas muaj tsawg dua |
|
Kho txheej txheem |
Irronersible thermosetting; tsis tuaj yeem rov qab kho dua |
Thermopoplastic cov ntaub ntawv tuaj yeem yaj thiab hloov kho |
|
TSHWJ XEEB KEV CAI |
High - purity melamine hmoov 99.8% ua kom ua tau zoo sib xws |
Purity tuaj yeem cuam tshuam cov khoom, tab sis cov kev tsim qauv txawv los ntawm daim ntawv thov |
Ntau qhov kev sim qhia tias Melamine yog qhov zoo rau cov khoom uas yuav tsum tau kav ntev thiab kov kom sov. Qhov no suav nrog tais diav, countertops, thiab cov khoom ntoo tshwj xeeb. Thaum melamine hardens, koj tsis tuaj yeem yaj nws nqes thiab rov kho nws zoo li cov yas ua li niaj zaus. Cov khoom ua noj ua mov ua los ntawm melamine nyob ruaj khov nyob rau hauv cov xwm txheej uas yuav tau txais kev puas tsuaj lossis warped.
Hauv kev kaw, melamine thiab yas yuav saib zoo sib xws, tab sis lawv txawv heev. Melamine qhov tshwj xeeb ua rau nws zoo meej rau cov haujlwm nyuaj uas li niaj zaus cov yas yuav tsis ua haujlwm.
Kev ua tau zoo thiab kev nyab xeeb: kev siv nyob rau hauv chav ua noj ua haus thiab dhau mus
Melamine ua cov khoom noj hmo ua noj ua haus. Nws cov qauv tshwj xeeb pab nws tswj cov tee thiab maj mam hloov pauv, thiab xyoo ntawm cov kev ua tau zoo tau ua kom pom zoo hauv khw noj mov tsis khoom. Cov tais diav no zoo meej rau cov tsev thiab tsev noj mov vim tias lawv tuaj yeem siv ntau yam kev siv txhua hnub yam tsis muaj kev txhaum.
Melamine tais diav tsis txhob tawg yooj yim zoo li cov phiaj xwm sib txawv ua thaum poob. Lawv txoj kev du ceev cov zaub mov stains thiab tsw los ntawm cov nplaum, uas ua rau lawv yooj yim los ntxuav thiab saib kom zoo rau lub sijhawm ntev. Tab sis peb yuav tsum tau ceev faj txog kev siv lawv, raws li cov tshuaj yuav xau yog tias cov tais diav tau kub dhau los lossis kov cov khoom noj muaj zog heev.
Tom qab sim cov khoom no, peb yuav tsum paub qhov tseem ceeb ntawm txoj cai kev nyab xeeb. Tsis txhob siv microwave melamine tais diav. Thaum siv nyob rau ntawm qhov kub thiab txias thiab ntxuav kom huv, cov tais diav no muaj kev nyab xeeb heev. Koj tuaj yeem tshawb xyuas covFDA FOOD cov lus qhia kev nyab xeeb rau melaminekom ua tiav txoj cai kev nyab xeeb.
Melamine tais diav ua haujlwm zoo thiab kav ntev. Lawv yuav tsis tawg li cov tais diav ib txwm ua. Raws li yav dhau los kev paub, cov tais diav no tau ua pov thawj kom muaj kev nyab xeeb thaum siv kom raug thiab yog qhov kev xaiv zoo tshaj plaws rau kev noj mov niaj hnub.
Kev nkag siab tshwj xeeb & hauv {- beade qhia txog melamine zoo
Peb tau sim ntau hom melamine hauv peb lub lab. Cov ncauj lus kom ntxaws qhia meej qhia meej qhov sib txawv ntawm qis-}-}}}}}}} .8%. Qis dua melamine muaj ntau yam teeb meem nrog nws cov qauv yooj yim. Industrial -}}} Melamine, ntawm qhov tod tes, qhia tau zoo ua tau zoo hauv txhua qhov kev ntsuas peb tau khiav.
Txhua tus qauv tau dhau los ntawm ob peb qhov kev xeem yooj yim. Cov lus hauv qab no qhia tau tias peb pom li cas:
|
Taw tes |
Tsawg - qib me me |
Industrial - qib (99.8%) |
|
Kev coj dawb huv |
~ 95 – 97% |
Ntau dua los yog sib npaug rau 99.8% |
|
Yauv cov ntsiab lus |
0.2 – 0.5% |
Tsawg dua los yog sib npaug rau 0.1% |
|
PH nqi |
Yam txawj hloov |
Tsis tu ncua nyob rau hauv 7.5 - 9.5 |
|
Cov ntsiab lus tshauv |
Mus txog 0.05% |
Tsawg dua los yog sib npaug rau 0.01% |
|
Kev kho tau zoo sib xws |
Tsis sib xws |
Kev hnav khaub ncaws thiab txhim khu kev qha |
Peb cov kev ntsuas kev ntsuas pom tias zoo dua cov khoom lag luam zoo dua. Cov txiaj ntsig tau hloov pauv li cas cov tuam txhab xaiv lawv cov ntaub ntawv. Cov thawj coj kev lag luam tam sim no khaws cov ntaub ntawv uas ntsib cov qauv siab tshaj plaws. Rau cov lus qhia ntxiv, xa mus rauQub qub induQaib - qib melamine cov ntsiab lus.
Xaus Lus Qhia & Cov Kev Ua Rau Cov Neeg Siv Khoom thiab Kev Lag Luam
Melamine yog cov khoom siv tshwj xeeb uas sawv ntawm lwm cov plastics. Nws cov qauv tshwj xeeb, ua kev siv Melamine Hmoov 99.8%, tsim cov khoom siv muaj zog uas tuaj yeem tiv thaiv cov cua kub thiab kav ntev. Cov yeeb yam no ua rau nws zoo tag nrho rau ntau cov kev siv, tab sis nws tsis tuaj yeem rov ua dua ib yam li kev plastics tsis tu ncua.
Kev nyab xeeb yog qhov tseem ceeb heev thaum siv cov khoom melamine hauv tsev. TusFDA FOOD cov lus qhia kev nyab xeeb rau melamineMuab cov cai ntshiab hais txog kev siv cov khoom no nyab xeeb, tshwj xeeb tshaj yog cov tais diav thiab ua yeeb yam. Cov tuam txhab yuav tsum siv siab - zoo melamine hmoov thiab ntsuas lawv cov khoom kom paub tseeb tias lawv muaj kev nyab xeeb.
To kev nkag siab txog melamine ua haujlwm pab txhua tus ua cov kev xaiv zoo dua. Qhov kev paub no ua rau cov neeg siv khoom siv cov khoom muaj kev nyab xeeb, thiab pab cov tuam txhab ua cov khoom lag luam zoo dua. Los ntawm cov lus qhia no, ob pawg neeg tuaj yeem tau txais cov feem ntau tawm ntawm cov khoom no.
Cov Lus Nug