Ko te kapia UV, e mohiotia ana ko te kapia photosensitive, he oligomer ka taea te whakarereke i te tinana me te matū i roto i te wa poto i muri i te whai waahi ki te marama, katahi ka whakawhiti me te pakari.Ko te kapia UV te nuinga kua wehea ki te whakarewa i runga i te kapia UV me te kapia UV e pa ana ki te wai.
Whakarewa UV kapia
Ko nga kapia UV i runga i te whakarewa noa te nuinga ko: UV polyester haunga, UV epoxy acrylate, UV polyurethane acrylate, UV polyester acrylate, UV polyether acrylate, UV parakore kiriaku kapia, UV epoxy resin, UV silicone oligomer, etc.
Kapia UV na roto i te wai
Ko te kapia UV Waiwai e pa ana ki te kapia UV ka whakarewahia ki te wai, ka marara ranei ki te wai.He maha nga roopu hydrophilic kaha i roto i te ngota, penei i te carboxyl, hydroxyl, amino, ether, me nga roopu acylamine;Kei roto ano he roopu haunga, penei i te acryloyl, methacryloyl, allyl group ranei.Ka taea te wehea nga rakau UV wai-wai ki nga waahanga e toru: te wai, te wai marara me te wai-wairewa, te nuinga o nga waahanga e toru: polyurethane acrylate wai, acrylate epoxy wai me te acrylate polyester wai.
Ko te kapia o te wai UV te tikanga he 80-90% te kapia wai me te 10-20% etahi atu taapiri.Whai muri i te paninga me te whakakoi, ka waiho he papa angiangi he polymer ki runga i te mata o te tïpako, e whakawhiwhi ana i te paninga ki nga ahuatanga rereke na te rerekee o nga huinga tauira.Pērā i te mōhinuhinu teitei, te Hāmā, te ātete abrasion, aha atu.
Ko te kapia wai ko te waahanga matua o te Z i roto i te kapia UV wai.Ka whakatauhia, ka pa ki nga ahuatanga o te kapia UV wai, penei i te whiti, te piri, te aukati abrasion, te maroke, me etahi atu.
He maha nga momo kapia, tae atu ki te rosin wai kua whakarerekehia te kapia tane, te kapia polyurethane wai, te kapia kiriaku wai, te kapia alkyd wai, te kapia amino wai, me etahi atu. tuku wai, mohinuhinu pai i muri i te hanganga kiriata, ātete wera, ātete matū, tere whakamaroke tere, me ētahi atu, i te wai ka taea te whakatutuki i nga whakaritenga o te tuhi me te karaihe ki te whānuitanga nui.No reira, i te wa e whakareri ana i te waiu UV kapia, ka riro te punaha copolymer kiriaku wai hei whiriwhiri pai ma tatou.
Ka taea te wehea te kapia kopolymer kiriaku wai ki te otinga kapia kiriaku wai, te whakamararatanga kiriaku wai, me te hinu kiriaku.Ka taea te wehea te hinu kiriaku ki te hinu kiriaku hanga kiriata me te hinu kiriaku hanga kiriata kore.Ko nga ahuatanga o te kapia kopolymer kiriaku i roto i te wai he mea tito he monomers.Te mahinga me te tukanga whakahiato.Ka taea e etahi monomers te whakapai ake i te kanapa me te pakeke, ko etahi ka whakarato i te aukati matū me te piri.He maha nga whakamatautau kua whakamatauhia ko te waiu UV kapia, he mea puiao ki te wairewa waikawa kiriaku wai me te wai waikawa kiriaku, he tino pai nga ahuatanga.
Te wa tuku: Hanuere-09-2023