Ngā āhuatanga ā-tinana me ngā mahi matua o ngā āwhina tukatuka PVC

Ko te āwhina tukatuka PVC he pūhui honohono thermoplastic i whiwhi mai i te whakakotahitanga o te methyl methacrylate me te acrylate mā te hinu purapura. E whakamahia ana mō te tukatuka me te hanga rauemi PVC. He pai te pānga ki te whakapai ake i te ātete pānga o ngā rauemi PVC. Ka taea e ia te whakarite i tētahi tikanga whakakotahitanga maha-taahiraa mā te whakamahi i te whakakotahitanga hinu purapura, tae atu ki te whakakotahitanga hinu tuku iho me te whakakotahitanga hinu anga matua. Ko tōna painga kei roto i te kaha ki te whakahaere i te hanganga, te rahi, te matotoru o te anga, te ōwehenga o te anga ki te radius matua, ngā āhuatanga mahi mata, me ētahi atu o ngā matūriki kia rite ki ngā hiahia rerekē i te wā o te tukanga tauhohenga hanga, ā, he ōrite te tohatoha rahi matūriki hua.

Ko ngā rauemi mata matua mō ngā āwhina tukatuka PVC ko ngā ester kiriaku me te methyl methacrylate. I roto i te hanga tuturu, ka whakakotahihia te acrylate ki ētahi atu monomer (pērā i te styrene, acrylonitrile, me ētahi atu) mā te hinu hei hanga i tētahi polymer he iti te pāmahana whakawhiti karāhe, arā, he matua he āhuatanga elastomer, kātahi ka honoa ki te methyl methacrylate, styrene, me ētahi atu hei hanga i tētahi polymer he anga matua. Ko te ihirangi totoka o tēnei hinu he 45% ± 3% te nuinga, ā, ka whakamaroketia te hinu, ka whakamarokehia kia iti iho i te 1% te ihirangi wai o te hua (wāhanga papatipu) hei whiwhi i ngā hua paura mā.

Ko te whakapūhuitanga hinu matua te kaupapa matua o te hangarau hanga kapia ACR. Ka taea te wehewehe i te hanganga anga matua o te ACR kia toru ngā momo: te hanganga anga ngohengohe matua mārō, te hanganga anga mārō matua mārō, me te hanganga paparanga-toru mārō ngohengohe. Heoi, ko te momo matua e hokona ana i te mākete i tēnei wā ko te "hanganga anga mārō matua mārō". He pai te mahi a ngā kapia ACR me tēnei hanganga, ā, e whakamahia whānuitia ana. Ko te whakapūhuitanga hinu matua o te "hanganga anga mārō matua mārō" he tukanga e honoa ai te monomer mārō ki te purapura o ngā matūriki rapa mārō i hangaia e te taahiraa tuatahi o te whakapūhuitanga hinu. Ko te momo me te horopeta o ngā emulsifier, te ōwehenga matua-anga, te tikanga whāngai monomer anga, te tohu honohono o ngā matūriki rapa purapura (matua rapa), te rahi o te matūriki purapura, me te momo me te horopeta o te kaihoko honohono katoa he pānga nui ki te hanganga matua-anga o ngā matūriki rapa ACR me te mahi hua whakamutunga o te ACR.