Polypropylene glycol (PPG)He pūmua kore-ionic i whiwhihia mā te whakapūhuitanga porowhita o te propylene oxide. He āhuatanga matua ōna pēnei i te wairewatanga wai whakarerekē, he whānuitanga matotoru, he pumau matū kaha, me te iti o te paitini. Ka horapa ōna tono ki ngā ahumahi maha, tae atu ki ngā matū, ngā rongoā, ngā matū o ia rā, te kai, me te hanga ahumahi. He rerekē ngā mahi a ngā PPG o ngā taumaha ngota rerekē (mai i te 200 ki te neke atu i te 10,000). Ko ngā PPG taumaha-ngota iti (pēnei i te PPG-200 me te 400) he wairewa ake i te wai, ā, he mea whakamahi noa hei whakarewa me hei kirihou. Ko ngā PPG taumaha-ngota waenga me te taumaha-ngota teitei (pēnei i te PPG-1000 me te 2000) he wairewa ake i te hinu, he totoka-haurua rānei, ā, e whakamahia ana i roto i te emulsification me te hanga elastomer. Koinei te tātari taipitopito o ōna wāhi tono matua:
1. Te Ahumahi Polyurethane (PU): Tetahi o ngā Rauemi Matua
Ko te PPG tētahi rauemi mata polyol matua mō te hanga rauemi polyurethane. Mā te tauhohenga ki ngā isocyanates (pērā i te MDI me te TDI) me te whakakotahi ki ngā whakaroa mekameka, ka taea te whakaputa i ngā momo hua PU rerekē, e kapi ana i te whānuitanga katoa o ngā kāwai pahuka ngohengohe ki te pakari:
Ngā elastomer polyurethane: E whakamahia whānuitia ana te PPG-1000-4000 i roto i te hanga polyurethane thermoplastic (TPU) me ngā elastomer polyurethane whakarewa (CPU). E whakamahia ana ēnei elastomer i roto i ngā kapu hū (pēnei i ngā kapu waenga whakangāwari mō ngā hū hākinakina), ngā hiri miihini, ngā whitiki kawe, me ngā catheter hauora (he tino hototahi ki te koiora). He ātete ki te pakū, he ātete ki te haehae, he ngāwari hoki.
Ngā paninga/piripiri polyurethane: Ka whakapai ake te PPG i te ngāwari, te ātete wai, me te piri o ngā paninga, ā, ka whakamahia i roto i ngā peita OEM motuka, ngā peita ārai-waikura ahumahi, me ngā paninga rakau. I roto i ngā piri, ka whakarei ake i te kaha o te piri me te ātete ki te huarere, kia pai ai mō te piri i ngā konganuku, ngā kirihou, te hiako, me ētahi atu rauemi.
2. Ngā Matū o ia Rā me te Tiaki Whaiaro: Ngā Tāpiringa Mahi
Nā te ngawari, ngā āhuatanga whakapūkara, me ngā āhuatanga whakamakuku o te PPG, e whakamahia whānuitia ana i roto i ngā mahi tiaki kiri, ngā mea whakapaipai, ngā hopi horoi, me ētahi atu hua. He rerekē ngā mahi a ngā hua taumaha ngota:
Ngā Kaiwhakarewa me ngā Kaiwhakarewa: He maha ngā wā ka whakakotahihia te PPG taumaha ngota waenga (pēnei i te PPG-600 me te PPG-1000) ki ngā waikawa ngako me ngā esters hei kaiwhakarewa kore-ionic i roto i ngā kirīmi, ngā hinu horoi, ngā shampoo, me ētahi atu hanganga, hei whakau i ngā pūnaha hinu-wai me te ārai i te wehenga. Ka taea te whakamahi i te PPG taumaha ngota iti (pēnei i te PPG-200) hei kaiwhakarewa, hei āwhina i te whakarewa i ngā kai whakarewa-hinu pēnei i ngā kakara me ngā hinu kakara i roto i ngā hanganga wai.
Ngā Whakamakuku me ngā Whakakorenga: Ka tukuna e te PPG-400 me te PPG-600 he pānga whakamakuku ngawari me te ahua whakahauora, kāore e hinuhinu. Ka taea e rāua te whakakapi i ētahi glycerin i roto i ngā toner me ngā serum, ka whakapai ake i te rere o te hua. I roto i ngā whakangawari, ka taea e rāua te whakaiti i te hiko pateko me te whakarei ake i te maeneene o te makawe. Ngā Tāpiri Hua Horoi: I roto i ngā kirikiri kaukau me ngā hopi ringaringa, ka taea e te PPG te whakatika i te matotoru o te tauira, te whakarei ake i te pumau o te pahuka, me te whakaiti i te riri o ngā surfactants. I roto i te paraihe niho, ka mahi hei whakamakuku me te whakamātotoru, ka ārai i te maroke me te pakaru o te whakapiri.
3. Ngā Whakamahinga Rongoā me te Hauora: Ngā Whakamahinga Haumaru-Tiketike
Nā te iti o te paitini me te tino hototahi ki te koiora (e tutuki ana i ngā paerewa USP, EP, me ētahi atu paerewa rongoā), e whakamahia whānuitia ana te PPG i roto i ngā whakatakotoranga rongoā me ngā rauemi hauora.
Ngā Kaikawe Rongoā me ngā Whakarewa: He whakarewa pai rawa atu te PPG taumaha-ngota iti (pēnei i te PPG-200 me te PPG-400) mō ngā rongoā kāore e tino wairewa, ā, ka taea te whakamahi i roto i ngā whakatārewatanga ā-waha me ngā werohanga (me tino whakahaere te parakore me te tango i ngā paru iti), hei whakapai ake i te wairewatanga me te waatea o te rongoā. Hei tāpiri, ka taea te whakamahi i te PPG hei turanga suppository hei whakapai ake i te tukunga rongoā.
Te Whakarerekētanga Rauemi Hauora: I roto i ngā rauemi polyurethane hauora (pēnei i ngā oko toto horihori, ngā takirere ngākau, me ngā catheter mimi), ka taea e te PPG te whakarerekē i te hydrophilicity me te biocompatibility o te rauemi, ka whakaiti i te urupare ārai mate o te tinana, me te whakapai ake hoki i te ngāwari o te rauemi me te ātete ki te waikura toto. Ngā Kai Tāpiri Rongoā: Ka taea te whakamahi i te PPG hei wāhanga turanga i roto i ngā hinu me ngā kirīmi hei whakarei ake i te urunga o te rongoā mā roto i te kiri, ā, he pai mō ngā rongoā ā-waha (pēnei i ngā hinu patu huakita me ngā hinu steroid).
4. Ngā Whakahinuhinu Ahumahi me ngā Mīhini: Ngā Whakahinuhinu Mahi-Tiketike
He tino pai te whakahinuhinu a te PPG, he ātete ki te kakahu, ā, he ātete ki ngā pāmahana tiketike me ngā pāmahana iti. He tino hototahi hoki ki ngā hinu kohuke me ngā tāpiringa, ā, he rauemi mata matua tēnei mō ngā hinu whakahinuhinu hangai.
Ngā Hinu Waipēhi me ngā Hinu Taputapu: Ka taea te whakamahi i ngā PPG taumaha-waenga me te taumaha-teitei (pēnei i te PPG-1000 me te 2000) hei hanga waipēhi ārai-kakahu e tika ana mō ngā pūnaha waipēhi pēhanga teitei i roto i ngā mīhini hanga me ngā taputapu mīhini. Ka mau tonu te rere pai ahakoa i ngā pāmahana iti. I roto i ngā hinu taputapu, ka whakarei ake i ngā āhuatanga ārai-hopu me te ārai-kakahu, ka roa ake te ora o te taputapu.
Ngā Wai Whakarewa: Ka taea te whakamahi i te PPG hei tāpiri i roto i ngā wai whakarewa me te huri, hei whakarato hinu whakahinuhinu, hei whakamatao, hei ārai i te waikura, hei whakaiti i te kakahu o ngā taputapu me te whakapai ake i te tika o te miihini. Ka pirau hoki i te koiora (ko ētahi PPG kua whakarerekētia ka tutuki i te hiahia mō ngā wai tapahi e pai ana ki te taiao). Ngā Hinu Whakarewa Motuhake: Ka taea e ngā hinu whakarewa e whakamahia ana i roto i ngā taiao pāmahana teitei, pēhanga teitei, motuhake rānei (pēnei i ngā taiao waikawa me te kawakore), pēnei i ngā taputapu rererangi me ngā papu matū me ngā takirere, te whakakapi i ngā hinu kohuke tuku iho me te whakapai ake i te pono o ngā taputapu.
5. Tukatuka Kai: Ngā Tāpiri Kai-Pai
Ko te PPG kai-kaupapa (e tutuki ana i te FDA) e whakamahia ana mō te whakaemulsification, te tango huka, me te whakamakuku i roto i te tukatuka kai:
Te Whakapūmau me te Whakapūmau: I roto i ngā hua miraka (pēnei i te aihikirīmi me te kirīmi) me ngā kai tunua (pēnei i te keke me te taro), ka mahi te PPG hei whakapūmau hei ārai i te wehenga o te hinu, hei whakapai ake hoki i te ōritetanga me te reka o te kakano o te hua. I roto i ngā inu, ka whakapūmau i ngā reka me ngā tae hei ārai i te wehenga.
Kaiwhakakore Huka: I roto i ngā tukanga whakapūkara kai (pēnei i te hanga pia me te ranu soya) me te tukatuka wai, ka mahi a PPG hei kaiwhakakore huka hei pehi i te huka me te whakapai ake i te pai o te whakaputa me te kore e pā ki te reka.
Kaiwhakamakuku: I roto i ngā keke me ngā monamona, ka mahi te PPG hei whakamakuku hei ārai i te maroke me te ngatata, kia roa ake ai te ora o te kai.
6. Ētahi atu Wāhanga: Te Whakarerekētanga Mahi me ngā Taupānga Āwhina
Ngā Paninga me ngā Waituhi: Haunga ngā paninga polyurethane, ka taea te whakamahi i te PPG hei whakarerekētanga mō ngā kapia alkyd me te epoxy, hei whakapai ake i tō rātou ngāwari, te whakataurite, me te ātete ki te wai. I roto i ngā waituhi, ka taea e ia te whakarite i te matotoru me te whakarei ake i te āheinga tā (hei tauira, ngā waituhi āwhata me ngā waituhi gravure).
Ngā Āwhina Kakahu: Ka whakamahia hei whakaoti ārai-patū me te whakangawari mō ngā kakahu, ka whakaiti i te hanga patū, ka whakarei ake i te ngawari. I roto i te tae me te whakaotinga, ka taea te whakamahi hei kaiwhakarite hei whakapai ake i te horapa o te tae me te whakarei ake i te ōritetanga o te tae.
Ngā Kaiwhakakore Huka me ngā Kaiwhakakore Huka: I roto i te hanga matū (hei tauira, te hanga pepa me te maimoatanga wai para), ka taea te whakamahi i te PPG hei kaiwhakakore huka hei pehi i te huka i te wā e hanga ana. I roto i te hanga hinu, ka taea te whakamahi hei kaiwhakakore huka hei āwhina i te wehewehe i te hinu mata mai i te wai, ā, ka piki ake te whakaora hinu. Ngā Kaupapa Matua mō te Whakamahinga: Ko te whakamahinga o te PPG me whai whakaaro nui ki te taumaha ngota (hei tauira, ko te taumaha ngota iti e aro ana ki ngā whakarewa me te whakamakuku, ko te taumaha ngota waenga me te teitei e aro ana ki te whakaemulsification me te hinu whakahinuhinu) me te taumata parakore (ko ngā hua parakore teitei te mea e pai ake ana i roto i ngā ahumahi kai me te rongoā, ko ngā taumata paerewa ka taea te whiriwhiri i runga i ngā hiahia ahumahi). Ko ētahi whakamahinga me whakarerekē anō hoki (hei tauira, te whakapiri, te hononga whakawhiti rānei) hei whakarei ake i te mahi (hei tauira, te whakarei ake i te ātete wera me te ātete mura). I te piki haere o ngā tono mō te tiaki taiao me te mahi teitei, kei te whānui haere ngā wāhi whakamahinga o te PPG whakarerekētia (hei tauira, te PPG koiora me te PPG pirau koiora).
Wā tuku: Oketopa-29-2025