He whakarewa mahi-teitei, he pai hoki mō te taiao, e whakamana ana i te whakapai ake i te kounga i roto i ngā ahumahi maha.
Ko te Diethylene Glycol Butyl Ether (ingoa matū: Diethylene Glycol Monobutyl Ether, ingoa Ingarihi: Diethylene Glycol Butyl Ether, whakarāpopototia ko DGBE) he whakarewa rauropi maha-mahi me te kaha whakarewa pai, te pumau pai, me te haumaru taiao. Nā ōna āhuatanga matua o te ira kohua teitei, te iti o te hurihuri, me te wairewa i roto i te wai me te hinu, me ngā painga matomato o te iti o te paitini me te iti o ngā tukunga VOC, kua riro te DGBE hei tāpiri matua i roto i ngā mara maha pēnei i te paninga, te waituhi, te horoi ahumahi, te hikohiko, me te rongoā. Ka taea e ia te whakakapi tika i ngā whakarewa parahanga nui tuku iho, hei āwhina i ngā umanga ki te whakatutuki i ngā whāinga maha o te arotau i te tātai, te whakapai ake i te whai huatanga, me te whakapai ake i te tutuki i ngā whakaritenga.
Te Mahi Matua: Ngā painga maha-ahu, e tautuhi ana i tētahi paearu hou mō te mahi whakarewa
1. Teitei o te kohua me te iti o te piki me te heke, ka pumau ake te hanganga me te whakaputanga
Ko te pāmahana koropupū o te DGBE he 230°C te teitei, ā, ko te pāmahana mura kapu-kati he 78°C, me te tere whakapūpū puhoi, ōrite hoki. I roto i ngā āhuatanga pēnei i te hanganga pāmahana teitei me te tunu roa, ka taea e ia te whakarite i te tere whakamaroke o te pūnaha, me te karo i ngā hapa pēnei i te kiri karaka, ngā kōhao iti, me te mā o te kiriata paninga i puta mai i te tere whakapūpū o ngā whakarewa. I taua wā anō, ko te hoahoa pāmahana mura teitei ka tino whakaiti i ngā mōrearea haumaru i te wā whakaputa me te rokiroki, ka urutau ki ngā hiahia whakaputa nui a te ahumahi.
2. Mana rewa whānui-whānui, urutau kaha ki te wai me te hinu
He tino pai ōna āhuatanga amphiphilic (e rua ngā āhuatanga hydrophilic me te lipophilic), ā, ka taea te whakarewa i ngā matū maha pēnei i te resins (reini acrylic, resin epoxy, resin alkyd, me ētahi atu), nitrocellulose, hinu, tae, me ngā hinu kohuke. Ka taea te whakaranu ki te wai i roto i ngā ōwehenga katoa, ā, he tino hototahi ki ngā whakarewa rauropi pēnei i te etanoru, te acetone, me te toluene. Ka taea te whakarerekē tika me te kore e nui ngā whakarerekētanga ki ngā tauira o nāianei, ka tino whakaiti i te utu o te whakapai ake i te tauira pakihi.
3. Kakariki, haumaru, ā, tutuki i ngā whakaritenga, e hangai ana ki te ia o te whanaketanga tiaki taiao
I hangaia mā te whakamahi i te tukanga hanga matū matomato, he ≥99.5% te parakore o te hua, ā, he tino iti te ihirangi poke. He iti noa te paitini, ā, he 75% te iti iho o te paitini i te whakataurite ki ngā whakarewa tuku iho (pērā i te ethylene glycol ethers) ā, he 90% te iti iho o ngā tukunga VOC. Ka taea e ia te whakatutuki i ngā ture taiao pakari o roto me tāwāhi pērā i a GB, REACH, me TSCA, hei āwhina i ngā umanga ki te pakaru i ngā arai hokohoko matomato.
4. He pai te mahi hononga, e whakapai ake ana i te pumau o te pūnaha
He pai ngā mahi honohono me te whakau, ka taea te whakapai ake i te hototahitanga o ngā pūnaha whakauru, te ārai i te wehewehenga me te ua o te tātai, me te whakaroa i te wā rokiroki hua. Ina tāpirihia ki ngā hua pēnei i ngā kaihoko horoi me ngā paninga, ka taea te whakapai ake i te kaha horoi, te kounga hanga kiriata, me te ātete ki te huarere o te pūnaha, ka tutuki ai te arotautanga whānui o te mahi hua.
Wā tuku: Hanuere-13-2026
