Polyurethane (paninga, hiri, piripiri)
Ka tauhohe te makuku i roto i te pūnaha PU ki te isocyanate, ahakoa he hua polyurethane kotahi-wāhanga, he rua-wāhanga rānei, e whakaputa ana i te amine me te hauhā waro, ka haere tonu te tauhohenga o te amine ki te isocyanate, kia tukuna ai te hauhā waro i te wā kotahi, ka puta he mirumiru ki te mata o te kiriata peita, ka heke te kounga, ka ngoikore rānei te mahi a te kiriata peita.
E rawaka ana te 2%~5% o te paura tātari ngota i roto i te pūnaha hei tango i te makuku toenga i roto i te pūnaha PU, engari ko te mutunga iho kei te makuku o te pūnaha.
Paninga ārai-waikura
I roto i te paninga konutea-whai-epoxy, he iti noa te wai ka puta he tauhohenga nui ki te paura konutea, ka puta he hauwai, ka whakanui ake i te pēhanga i roto i te oko, ka whakapoto i te roa o te mahi o te paninga, ka hua ake he piri, he ātete ki te kakahu me te pakeke o te kiriata paninga. Ko te tātari ngota (paura) hei whakamaroke mimiti wai, he mea mimiti tinana katoa, ka whakakore i te wai, ā, kāore he tauhohenga ki te papa. Nō reira, he haumaru, he watea hoki te tātari ngota mō te pūnaha paninga ārai-waikura.
Paninga paura whakarewa
Ka puta pea ngā tauhohenga rite i roto i ngā paninga paura whakarewa, pērā i roto i ngā paninga paura konumohe.
Ngā hua e pā ana:JZ-AZ Tātari Irahiko