Ko reira tino i roto i te rārangi ki te paerewa hokona Melamine Dinnerware motu, ka taea e faaea ma te papû e koe e ki te melamine me formaldehyde tauhohe hua rauemi melamine, te tauhohe tauhohe tina heke, e kore e whakahokia kotahi ano melamine formaldehyde ranei, engari i roto i tenei tauhohe, he nui formaldehyde ( ngā āhuatanga tauhohe hiahiatia), hua i roto i te tauhohe i muri i te mutunga o te nui iti o te formaldehyde noa i roto i te rauemi, engari i roto i te tukanga whai-ake o te tukatuka etahi formaldehyde free ka tukua te wahi, i reira e tonu wahi o te oraraa o ngā hua, te whakamātautau tohu (free Formaldehyde hekenga iti iho i te 15 ㎎ / ㎏, te paerewa EU), e taea rite he koloa, ki to matou tepu koe.
Xinhua News Agency, te American Medical Association, "Medical Medicine" moheni tata whakaputaina he pūrongo rangahau e melamine rite he rauemi raw mo te hanga o te hokona i roto i te tukanga pāmahana tiketike, ka tukua nga matū matū, me te kai ki te tinana tangata.
Tīpakohia te kairangahau e rua ngā rōpū o nga tangata pakeke hauora me nga wahine rite te ahanoa o ako, aua, kia kia whakamahi ratou peihana melamine me uku kohi kai peihana. I roto 12 haora o te kai, whakamatauria nga kairangahau ratou tauira mimi.
Ko te hua whakakitea e te whakamahi o Melamine Dinnerware rōpū o ngā kaupapa, te ihirangi melamine toharite o te mimi ko tetahi rōpū o 6.4 wa.
Ko te ako kihai i aromatawai i te pānga o te melamine i runga i te hauora tangata, i te rīnena, i roto i te melamine he kore e taea te whakapumautia he kino wā roa-ki te hauora tangata. Tuhu tohunga i roto i taua mahi tākihi kōhungahunga ko tonu ngoikore, pera wā roa-iti-horopeta horomanga o melamine ngāwari tūkino ratou mahi tākihi.
Melamine Ko te pūhui organic, whānui e whakamahia ana i roto i coatings, kirihou, ngä rongoä, papanga, me te tahi atu mara. Ka rite ki te mea pai, anti-maturuturunga iho roa te hua resistance maeke me te mahana, e kore ngāwari ki te memenge, melamine rite te matua rauemi raw o peehia porcelain hokona.
Ka mea kairangahau te hapori hauora i runga i melamine kia arahi ki te hiahia ngā pānga koiora wā roa-ki tonu te rangahau.
Melamine formaldehyde kāpia iho he kore-paitini, engari kei te teriuma melamine formaldehyde te nui etahi o formaldehyde free, i roto i te radiation ngaruiti ka kia puhoi ki te tukua, na mo te haumaru, ka te whakamahi o te melamine kāpia i hanga o oko kia tohua "taea kore kia hoatu ki roto ki te ngaruiti "te whakatūpato pai. Otiia kāore: E ai ki te arowhai wahi, te utu mākete o 13,000 ki te 14,000 yuan / ton o rauemi teriuma melamine mo te hanga o te rawakore hokona kounga porcelain iti iho i te 20%. Ki te utu o 5,000 yuan / ton o kapia Urea-formaldehyde hei utu, production tata ture o ō rāua whakaaro porcelain ahumahi hokona "ture huna."
Urea-fOrmaldehyde kāpia (UF)
Urea winika kāpia (ie Urea formaldehyde kāpia) he Urea me formaldehyde mā te tāpiri polymerization tauhohe o te teriuma rewatau. Ko ngā matatini te hanganga o te hua, tika i te nui o te tiomimi me formaldehyde, te pH pūnaha tauhohe, te pāmahana tauhohe, te wā, me te tahi atu tikanga. Ko te kapia tiomimi-formaldehyde, synthesized nei i ariā tuku iho, kei te nuinga wehea ki e rua ngā wāhanga. Ko te wāhanga tuatahi ko te hanganga o te methylol Urea, e ko te wā tua tauhohenga. Ko te kapia atamira tuarua ko te wā polycondensation tauhohenga.
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wā Post: Jun-02-2017