He matū waro te 1,3-propanediol me te 1,2-propanediol nō te akomanga o ngā diol, arā, e rua ngā rōpū mahi hydroxyl (-OH). Ahakoa ō rāua hanganga ōrite, he rerekē ngā āhuatanga me ngā tono nā te whakaritenga o ēnei rōpū mahi i roto i ō rāua hanganga ngota.
Ko te 1,3-propanediol, e whakarapopototia ana ko te 1,3-PDO, ko tōna tauira matū ko C3H8O2. He wai kore tae, kore kakara, kore reka hoki i te pāmahana rūma. Ko te rerekētanga matua o tōna hanganga ko te noho o ngā rōpū hydroxyl e rua ki runga i ngā ngota waro e wehea ana e te ngota waro kotahi. Mā tēnei ka hoatu ki te 1,3-PDO ōna āhuatanga ahurei.
Ngā Āhuatanga me ngā Whakamahinga o te 1,3-Propanediol:
Kaiwhakarewa:He whakarewa whai hua te 1,3-PDO mō ngā momo matū pōraru me ngā matū kore-pōraru nā tōna hanganga matū ahurei.
Ārai Hukapapa:E whakamahia whānuitia ana hei ārai huka i roto i ngā mahi motuka me ngā mahi ahumahi nā te mea he iti ake tōna ira huka i te wai.
Te Hanga Pūmua: Ka whakamahia te 1,3-PDO i roto i te hanga pūmua pirau-koiora pērā i te polytrimethylene terephthalate (PTT). He whakamahinga ēnei pūmua koiora i roto i ngā kakahu me ngā takai.
1,2-Pōpānioro:
Ko te 1,2-propanediol, e mōhiotia ana ko te propylene glycol, kei a ia te tātai matū C3H8O2. Ko te rerekētanga matua ko ōna rōpū hydroxyl e rua kei runga i ngā ngota waro tata i roto i te ngota.
Ngā Āhuatanga me ngā Whakamahinga o te 1,2-Propanediol (Propylene Glycol):
Ārai Hukapapa me te Kaiwhakakore Hukapapa: He mea noa te whakamahi i te propylene glycol hei ārai hukapapa i roto i ngā pūnaha tukatuka kai, whakamahana, me te whakamatao. Ka whakamahia hoki hei ārai hukapapa mō ngā waka rererangi.
Kaiwhakamakuku:E whakamahia ana i roto i ngā momo hua whakapaipai me ngā hua tiaki whaiaro hei whakamarumaru i te kiri hei pupuri i te makuku.
Tāpiringa Kai:E whakarōpūtia ana te propylene glycol hei "tino mōhiotia he haumaru" (GRAS) e te US Food and Drug Administration (FDA) ā, e whakamahia ana hei tāpiringa kai, hei kawe i ngā reka me ngā tae i roto i te umanga kai.
Ngā rongoā:E whakamahia ana i roto i ētahi whakatakotoranga rongoā hei whakarewa me te kaikawe mō ngā rongoā.
Hei whakarāpopototanga, ko te rerekētanga matua i waenga i te 1,3-propanediol me te 1,2-propanediol kei roto i te whakaritenga o ō rāua rōpū hydroxyl i roto i te hanganga ngota. Nā tēnei rerekētanga hanganga ka hua ake he āhuatanga motuhake me ngā tono rerekē mō ēnei diol e rua, me te 1,3-propanediol e whakamahia ana i roto i ngā whakarewa, ngā ārai huka, me ngā pūmua pirau-koiora, ko te 1,2-propanediol (propylene glycol) ka kitea ngā tono i roto i ngā ārai huka, te kai, ngā mea whakapaipai, me ngā rongoā.
Wā tuku: Hepetema-20-2023