I muri i te whakamahi i te huānga tātari kānara mo te wa roa i runga i te aho hurihuri kakawaea, ka aukatihia e te paru, a ka piki ake te rereketanga o te pehanga i waenga i te kokoru me te putanga o te punaha filtration polymer rewa, me enei tātari kānara pleated. kia horoia i mua i te whakamahi ano.Ko te horoi i te nuinga o te waa ka whakamahia nga tikanga tinana me te matū ki te calcine, ki te whakakore, ki te oxidize, ki te hydrolyze ranei i te polymer piri i te pāmahana teitei, katahi ka mahi i te horoi wai, te horoi alkali (waikawa) me te horoi ultrasonic.
Ko nga tikanga horoi ko: te tikanga calcinations, te pati tote, te tikanga tri-ethylene glycol, te tikanga hydrolysis teitei o te pāmahana, te tikanga mo te moenga waiu alumina, me te tikanga horoi korehau.I tenei wa, ko nga tikanga horoi e whakamahia nuitia ana ko te tikanga tri-ethylene glycol, tikanga hydrolysis pāmahana teitei, me te tikanga horoi korehau.
Ko te tikanga tri-ethylene glycol ko te whakamahi i te kaupapa ka taea te wetewete i te polymer e te tri-ethylene glycol i te kohua o te tri-ethylene glycol (285°C i te pehanga noa) ki te whakatutuki i te kaupapa o te horoi.Ko te mahi horoi ko te tuku i te mea ka horoia ki roto i te tank tri-ethylene glycol me te punaha whakamahana, whakaarahia mai i te pāmahana rūma ki te 265°C, kia mahana mo te 6 haora, katahi ka whakamatao ki te 100°C Ko te tikanga, tangohia te mea ka horoia, ka kuhu ki roto Horoia ki roto i te wai wera i te 95°C mo te 20 meneti, katahi ka ruku ki roto i te wairewa NaOH 10% i te mahana o te 60-70°C mo 12 haora, ka horoi ki te wai wera.Mena he porowhita me te huānga tātari rewa, ka hiahiatia te horoi ultrasonic.Ko te tikanga horoi he wai parakore i te mahana o te 60-70°C.Ko te wa horoi ko te 15-20 meneti, ka mutu ka pupuhihia kia maroke ki te hau kōpeke.
Ko te tikanga whakamaarama teitei ko te whakamahi i te polymer kia ngawari te whakamaarama me te kawakore i te wera nui ki te whakaputa matū iti-ngota, kia tutuki ai te kaupapa o te tango.Ko te tuku i te mea hei horoi ki roto i te autoclave, whangai i te mamaoa o te 0.3-0.6MPa, ko te pāmahana e tata ana ki te 130-160 ° C, me te wa ko te 2-8 haora.I roto i te autoclave, ki te tapirihia he iti o te NaOH, ka taea te whakaiti i te wa horoi, katahi ka taea te horoi wai, te horoi alkali, me te horoi ultrasonic.
Ko te tikanga horoi korehau ka kiia ko te tikanga pyrolysis korehau.Ko tana kaupapa mahi ko te whakanui tuatahi i te pāmahana ki te 300°C ka whakamahana mo tetahi wa ki te whakarewa i te polyester, etahi atu polymers teitei ranei i runga i te waahanga mahi hei tukatuka, ka rere te mea whakarewa ki waho, ka tukuna.Na ka whakamahana, i te 350°C, ka timata te toenga o te polyester ki te pirau, i tenei wa, whakahurihia te papu korehau kia puta, whakamahana ki te 500°C, kia mahana.I te wa ano, ka whakauruhia he hau iti ki te oxidize i te toenga.I roto i te ahua korehau, he tere ake te whakamaaramatanga o te waiariki me te waiariki o te toenga o te polyester, a ka ngotea nga matūriki hau me te pungarehu ki te whakatutuki i te kaupapa o te horoi.
Wā tuku: Akuhata-01-2023