Ko te kaiāwhina tango hau he kaiāwhina e tuku ana i ngā matū pūngāwerewere pērā i te hau, te makuku, me ngā matū ngota iti i hangaia i te wā e honoa ana me te totoka ana o ngā paninga paura ina rewa, ka hanga he kiriata. Ka whakatikatika hoki i ngā kōhao iti o ngā matū ngota iti i tukuna i te wā tika, ka karo i te puta mai o ngā kōhao iti, ngā kōhao rānei i roto i te kiriata paninga. Ko tēnei momo tāpiri tetahi o ngā tāpiri noa i roto i ngā paninga paura, ā, he maha ngā wā ka tāpirihia ki ngā hanganga paninga paura.
Ko te benzoin te mea e whakamahia whānuitia ana hei tango hau i roto i ngā paninga paura. He tioata mā, he kōwhai mārama rānei te benzoin, kāore he kakara, ko tōna ira rewa he 133-137 ℃, ā, ko tōna ira koropupū he 344 ℃. He paku wairewa ki te wai me te ether, ā, he wairewa ki te acetone wera me te etanoru; ko tōna ngoikoretanga he ngāwari te whakakōwhai i te paninga i ngā pāmahana teitei. Hei whakakore i ngā ngoikoretanga o te benzoin,ngā kaihoko tango hau kua whakarerekētia me te ware pikua whakawhanakehia ētahi atu mea kāore e ngawari ki te kōwhai i raro i ngā tikanga tunu me te whakamaroke.
E whakaatu ana ngā hua o ngā whakamātautau me ngā mahi whakaputa, i te wā e honoa ana, e whakamaroke ana hoki ngā paninga paura, me tāpiri atu ngā kai tango hau mō ngā momo paninga e whakaputa ana i ngā matū ngota iti. He mea tika kia tāpirihia he kai tango hau i roto i ngā paninga paura epoxy, epoxy polyester, polyester, me te polyurethane, nā te mea he raruraru ngā paninga paura pēnei i te mimiti ngāwari o te makuku i te wā e whakaputa ana, e whakamahi ana hoki. I roto i ngā paninga paura epoxy matte me te matte, ehara i te mea ngāwari te whakaputa i ngā kōhao iti me ētahi atu hapa me te kore e tāpirihia ngā kai tango pahuka pēnei i te benzoin. Kāore e taea te whakamārama mārama i te take, ā, tera pea nā te mea kāore te mata o te paninga i te maeneene me te kanapa pērā i te kanapa teitei, ā, kāore ētahi hapa paninga i te kitea, ka puta he ahua.
I tēnei wā, ko te benzoin tonu te mea e whakamahia whānuitia ana hei tango hau, me te horopeta tata ki te 0.5% o te rauemi hanga kiriata katoa i roto i ngā paninga paura, ka taea te whakarite tika i roto i tētahi whānuitanga e ai ki te momo me te hanganga o ngā paninga paura. I roto i ngā paninga paura polyester-HAA (hydroxyalkylamide), i runga i te awe o te benzoin ki te kōwhai o te kiriata paninga, me whakahaere tōna horopeta tata ki te 0.3% o te nui katoa o te rauemi hanga kiriata, ā, me whakaiti te whakamahinga i te nui e taea ana.Hei tāpiritanga, ka taea hoki te whakamahi i ngā kaihoko whakangawari me te tango hau e hangai ana ki te ware pi hangai, me te horopeta o te 1% o te tauira paninga paura katoa.
I roto i ngā hanganga paninga paura, ka tāpirihia ngā mea whakakore pahuka ki te rino maka, ki te konumohe maka, ki ngā pereti maitai whakarewa wera-tuku, me ngā pereti maitai hurihuri wera me ngā kōhao onepu, ngā kōhao iti rānei i te mata o te mea pania (te mea mahi) i te wā paninga paura hei ārai i te hanganga o ngā matūriki, o ngā poka puia rānei i roto i te kiriata paninga. He tāpiringa ēnei e tāpirihia ana hei ārai i te hanganga o ngā mirumiru i roto i te kiriata paninga.
Ina pania te paninga paura ki ngā wāhanga rino maka, ngā wāhanga konumohe maka, ngā wāhanga konukōre wera-tuku, ngā pereti maitai hurihuri wera rānei he kōhao onepu, he kōhao titi rānei, i te wā tunu me te whakamaroke, ka rewa te paninga paura, ka papatahi hoki i a ia e hiri ana i ngā kōhao onepu me ngā kōhao titi i runga i te mata o te mea kua pania. I te pikinga o te pāmahana o te rauemi kua pania, ka whānui te hau i roto i ngā kōhao onepu me ngā kōhao titi o te rauemi kua pania, ā, ka piki tonu te pēhanga o roto. Ina paku nui ake te pēhanga o roto i te kaha o te paninga rewa, ka pakaru te hau o roto i te paninga ka hanga mirumiru iti hei puta. Nā te tauhohenga totoka o te paninga paura i te wā o te tukanga hanga kiriata, ka piki tonu te matotoru rewa o te paninga, ā, ka huri hei kiriata paninga totoka. Nō reira, ina kore te pēhanga o roto i ngā mirumiru iti e eke ki te kaha e hiahiatia ana hei pakaru i te kiriata paninga, ka hanga ēnei mirumiru iti i ngā matūriki, i ngā kirikiri rānei e puta mai ana i te mata o te kiriata paninga. Ina nui te pēhanga o roto i te mirumiru iti hei pakaru i te paninga, ka pakaru te mirumiru iti, ā, ka puta te hau o roto ki te āhuarangi. Mena kua ngaro te kaha o te paninga i tēnei wāhi ki te whakataurite, ā, kāore e taea te hono i ngā pūaha hau iti e puta ai te hau, ka puta mai ngā matūriki, ngā kirikiri rānei o te rua puia, ka waiho hei raruraru nui.
Mena ka tāpirihia ngā mea whakakore pahuka ki ngā paninga paura, ka taea e rātou te whakaiti i te matotoru rewa o te paninga paura, me te whakaiti hoki i te taumahatanga o te mata o te paninga. Mā tēnei ka taea e te hau i roto i ngā kōhao onepu me ngā kōhao iti i runga i te mata o te rauemi paninga, e pāngia ana e te pāmahana me te pēhanga tunu, te pakaru ngāwari me te whakawhāiti i te kiriata paninga kāore anō kia whakamaroketia ki te āhuarangi. I taua wā anō, ka taea hoki e ngā āputa i roto i te kiriata paninga e puta mai ana ngā mirumiru te whakawhāiti ngāwari i te whakataurite, te aukati i te hanganga o ngā matūriki me ngā matūriki i roto i te kiriata paninga, ngā matūriki rānei he rua puia.
Nā te mea he rerekē rawa ngā tikanga whakakore huka o ngā paninga wai-tūturu me ngā paninga whakarewa i ērā o ngā paninga paura, kāore e taea te whakamahi tika i ngā whakakore huka e whakamahia ana i roto i ngā paninga wai-tūturu me ngā paninga whakarewa ki ngā paninga paura. Nā te āhua motuhake o ngā paninga paura, kāore i te maha ngā momo whakakore huka e whakamahia ana i roto i ngā paninga paura pērā i ngā paninga wai-tūturu me ngā paninga whakarewa.
Wā tuku: 15 o Ākuhata-2025