Ko te hiako waihanga polyurethane he rauemi hiato maha-mahi hou kua whanake tere i roto i nga tau tata nei.He mea hanga i runga i te paninga polyurethane slurry me te hanganga pūtau tuwhera i runga i te turanga iti o te papanga me nga papanga kore-whatu.Engari, ko te nuinga o nga polyurethanes e whakamahia ana he whakarewa, a, ko te kino ki te taiao me te tinana o te tangata na te toenga o te DMF me te whakahekenga o te VOC i roto i te tukanga whakaputa kua waiho hei putea hangarau e aukati ana i te whanaketanga o te umanga.I tenei wa, ko te polyurethane i runga i te wai he whakakapi pai mo te polyurethane whakarewa, engari ko ona koha he iti te kiko totoka, he ngoikore nga ahuatanga o te tinana, he ngawari te piri ki te mata paninga, he ngoikore te aukati hydrolysis, he puhoi te puhoi i roto i te mahi whakakikorua, me te iti o te hanga. whai huatanga.
I runga i te kaupapa o te "maamaa me te tiaki taiao" me te whakapai ake i te uara taapiri o nga hua, kua whakawhanakehia e te kaupapa he huinga o te punaha hangarau hou mo te hanga o te polyurethane totoka me te wai me te hiako hiako kaiao ka taea te whakakapi i te polyurethane whakarewa.Ko te polyurethane-wai-wai-a-roto teitei i hangaia me te whakawhanake ka taea te whakaiti i te toenga DMF me te wawaotanga o te VOC mai i te puna whanaketanga me te whakapai ake i te mahi whakakikorua.I te wa ano, no te mea kei roto i te kiriata te maha o nga roopu hydrophilic me nga hanganga microporous, he pai te hau me te makuku o te paninga, a he hua tino whakaputa.I tua atu, ka whakarereketia te polyurethane me nga rauemi nano ki te whakawhanake i nga hua hiako hiako polyurethane mahi-nui me te maha-mahi e tika ana mo te tono maakete, kia pai ake ai te taapiri o nga hua me te whakapakari i te whakataetae maakete.
Ko nga kaupapa rangahau matua:
(1) Hangarau takahanga o te polyurethane kawe i te wai.E ai ki te tauira pangarau o te kiato rahi o nga mea porowhita, kua whakaritea he polyurethane wai totoka nui me te tohatoha rahi matūriki.Ka taea e te tohatoha rahi matūriki maha-ahu te whakapai ake i te kiko totoka o te hinu me te kore e nui ake te pokey.Ka whakatauhia te raruraru o te pokey teitei me te iti o te pakaritanga i roto i te hanga o te polyurethane i roto i te wai.Ko te ihirangi totoka he> 50%, ko te koki whakapiri o te kiriata ko te 101.1 °, ka pai ake te aukati wai me te aukati wai.
(2) Hangarau hanga o te polyurethane pahuka i te wai.I runga i te polyurethane wai totoka nui, ka kowhiria te whakakotahitanga o nga tikanga pahuka a tinana me te matū hei hanga i te panguru polyurethane i runga i te wai me te pūtau whakarite.Ko te hua he pupuhi, he matotoru me te ngohengohe, he pai te whakauru o te makuku me te whakauru, te whakatutuki i te kore o te VOC me te DMF i roto i te tukanga whakaputa, te whakaiti i te uaua o te maimoatanga mutunga me te whakaora i te utu mo te whakaora whakarewa me te maimoatanga i te waahanga o muri mai.
(3) Hangarau whakarite o te polyurethane kawe wai mahi.Ko te polyurethane kawe wai maha me te super hydrophobicity, te aukati kakahu me nga taonga anti-pateko kua rite ma te whakamahi i te patene tauhohenga o te "mercapto monoene", nanotechnology me te hangarau whakaora marama.Ka taea te whakamahi i roto i te hiako hiako, te paninga pueru, te wehenga hinu-wai, te whakamarumaru hiko me etahi atu mara.
Wā whakairinga: Sep-13-2022