Polypropylene glycol (PPG)ose polymer non-ionic maua mai mama-matatala polymerization o propylene oxide. O loʻo i ai mea taua e pei o le faʻafefeteina o le vai, o le lautele o le viscosity, malosi le mautu o vailaʻau, ma le maualalo o le oona. O ana faʻaoga e faʻalautele ai le tele o alamanuia, e aofia ai vailaʻau, vailaʻau, vailaʻau i aso uma, meaʻai, ma fale gaosi oloa. O PPG o mamafa mole mole eseese (e masani lava mai le 200 i le sili atu i le 10,000) o loʻo faʻaalia ai se eseesega tele o galuega. PPGs maualalo-mole-mamafa (pei o le PPG-200 ma le 400) e sili atu le solu vai ma masani ona faʻaaogaina e pei o solvents ma plasticizers. PPGs feololo ma maualuga-molecular-mamafa (pei o le PPG-1000 ma le 2000) e sili atu le suauʻu-soluble poʻo semi-malosi ma e faʻaaoga muamua i le emulsification ma le elastomer synthesis. O lo'o taua i lalo se au'ili'iliga au'ili'ili o ona vaega fa'aoga autu:
1. Polyurethane (PU) Alamanuia: O se tasi o meafaitino autu
O le PPG o se mea autu polyol mata mo le gaosiga o mea polyurethane. E ala i le tali atu i le isocyanates (e pei o le MDI ma le TDI) ma tuʻufaʻatasia faʻatasi ai ma le faʻalauteleina o filifili, e mafai ona maua ai ituaiga eseese o oloa PU, e aofia ai le atoaga o vaega vaivai ile foam maʻaʻa:
Polyurethane elastomers: PPG-1000-4000 e masani ona faʻaaogaina i le sauniuniga o polyurethane thermoplastic (TPU) ma lafo polyurethane elastomers (CPU). O nei elastomers o loʻo faʻaaogaina i seevae seevae (e pei o le faʻapipiʻiina o totonugalemu mo seevae afeleti), faʻamaufaʻailoga faʻainisinia, fusi faʻaulu, ma faʻamaʻi faʻafomaʻi (ma le biocompatibility sili ona lelei). Latou te ofoina atu le abrasion resistance, tete'e loimata, ma le fetuutuunai.
Polyurethane coatings / faʻapipiʻi: PPG faʻaleleia le fetuutuunai, faʻafefe vai, ma faʻapipiʻi o faʻaofuofu ma faʻaaogaina i taʻavale OEM paʻu, fale gaosi mea e teteʻe ai i le paʻu, ma faʻapipiʻi laupapa. I mea faʻapipiʻi, e faʻaleleia ai le malosi o le fusi ma le faʻafefe o le tau, e talafeagai mo le faʻapipiʻiina o uʻamea, palasitika, paʻu, ma isi mea.
2. Vailaau Fa'asaina i Aso Ta'itasi ma Tausiga a le Tagata Lava Ia: Fa'aopoopo Fa'atino
PPG, ona o lona agamalu, emulsifying meatotino, ma moisturizing meatotino, e masani ona faaaoga i le paʻu, cosmetics, detergents, ma isi oloa. O oloa mamafa mole mole eseese e iai matafaioi eseese:
Emulsifiers and Solubilizers: Medium molecular weight PPG (e pei o le PPG-600 ma le PPG-1000) e masani ona faʻapipiʻiina i gaʻo gaʻo ma esters e avea o se emulsifier nonionic i kulimi, lotions, shampoos, ma isi mea faʻapipiʻi, faʻamautuina faiga suauʻu-vai ma puipuia le vavaeeseina. O le PPG mole mole maualalo (e pei o le PPG-200) e mafai ona faʻaaogaina e fai ma solubilizer, fesoasoani e faʻamavaeina mea e mafai ona faʻafefeteina e pei o mea manogi ma suauʻu taua i totonu o le vai.
Mosturizers ma Emollients: PPG-400 ma PPG-600 ofo atu se aafiaga fa'asusu fa'alelei ma se lagona fa'afouina, e le ga'o. E mafai ona latou suia nisi glycerin i toners ma serums, faʻaleleia le faʻafefe o oloa. I conditioners, e mafai ona latou faʻaitiitia le eletise faʻamalosi ma faʻaleleia le lamolemole lauulu. Fa'amama Mea Fa'aopoopo: I gels ta'ele ma fasimoli lima, e mafai e le PPG ona fa'afetaui le viscosity fua, fa'aleleia le fa'amautu o le foam, ma fa'aitiitia ai le ita o le surfactants. I le toothpaste, e galue o se humectant ma mafiafia, puipuia le paʻu mai mago ma taʻe.
3. Talosaga Fa'afoma'i ma Fa'afoma'i: Talosaga Maualuga-Saogalemu
Ona o le maualalo o le oona ma le sili ona lelei o le biocompatibility (o gatasi ma le USP, EP, ma isi tulaga tau vailaʻau), o le PPG e faʻaaogaina lautele i vailaʻau faʻamalositino ma mea faʻafomaʻi.
Fualaau Fa'asaina ma Solvents: O le mamafa o le molecular PPG (e pei o le PPG-200 ma le PPG-400) o se solvent sili ona lelei mo vailaʻau e le mafai ona soluble ma e mafai ona faʻaaogaina i le faʻaogaina o le gutu ma le tui (e manaʻomia le pulea lelei o le mama ma le aveesea o mea leaga), faʻaleleia le solubility o fualaau faasaina ma le bioavailability. E le gata i lea, e mafai ona faʻaaogaina le PPG e fai ma faʻavae suppository e faʻaleleia ai le faʻamalolo o fualaau.
Fomaʻi Mea Faʻafomaʻi: I mea faʻafomaʻi polyurethane (e pei o vaʻa toto faʻapitoa, fatu fatu, ma urinary catheters), e mafai e le PPG ona fetuunai le hydrophilicity ma le biocompatibility o mea, faʻaitiitia le tali atu a le tino aʻo faʻaleleia atili le fetuutuunai o mea ma le faʻafefe o le toto. Mea'ai Fa'afoma'i: E mafai ona fa'aogaina le PPG e fai ma vaega fa'avae i suauu ma kulimi e fa'aleleia atili ai le fa'aogaina o vaila'au i totonu o le pa'u ma e talafeagai mo vaila'au fa'asolosolo (e pei o le antibacterial ma le steroid ointments).
4. Lubrication Alamanuia ma Masini: Lubricants High-Performance
O le PPG e ofoina atu le lubricity sili ona lelei, mea e le fa'aofuofu, ma le maualuga ma le maualalo o le vevela. E malosi fo'i le feso'ota'iga ma suau'u minerale ma mea fa'aopoopo, ma avea ai ma mea autu mo lubricants synthetic.
Suau'u Suau'u ma Gear: PPG Medium-ma-molecular-weight (pei o le PPG-1000 ma le 2000) e mafai ona faʻaaogaina e faʻapipiʻi ai le faʻaogaina o vai faʻafefeteina e talafeagai mo masini eletise maualuga i masini faufale ma masini masini. Latou te tausia lelei le suavai e tusa lava pe maualalo le vevela. I le suau'u fa'aoga, latou te fa'aleleia ai le fa'asaoina ma le fa'aofuofu o mea, fa'alautele le ola o mea fa'aoga.
Suavai Umea: E mafai ona faʻaaogaina le PPG e fai ma faʻaopoopoga i le uʻamea ma le oloina o vai, tuʻuina atu le lubrication, malulu, ma le puipuia o le ele, faʻaitiitia le ofuina o meafaigaluega ma faʻaleleia le saʻo o masini. E mafai fo'i ona fa'aleagaina (o nisi o PPG ua fa'aleleia e fa'afetaui le mana'oga mo vai tipi fa'alelei). Lubricants Fa'apitoa: Lubricants fa'aaogaina i le vevela maualuga, maualuga, po'o fa'asalalauga fa'apitoa (e pei o si'osi'omaga acidic ma alkaline), e pei o masini aerospace ma pamu vaila'au ma valve, e mafai ona suitulaga suau'u minerale masani ma fa'aleleia atili le fa'atuatuaina o meafaigaluega.
5. Mea'ai Mea'ai: Mea'ai-Grade Additives
Food-grade PPG (FDA-compliant) e masani ona faʻaaogaina mo le faʻamalama, faʻafefe, ma faʻafefe i le gaosiga o meaʻai:
Emulsification ma Stabilization: I oloa susu (e pei o aisa kulimi ma kulimi) ma tao tao (e pei o keke ma falaoa), PPG galue o se emulsifier e taofia le vavaeeseina o le suauu ma faaleleia le tulaga tutusa o oloa ma le tofo. I meainu, e faʻamautu ai tofo ma lanu e puipuia ai le teteʻa.
Defoamer: I faiga fa'afefeteina mea'ai (e pei o le pia ma soya sausi brewing) ma sua gaioiina, PPG galue e pei o se defoamer e taofia ai le foa ma faaleleia le gaosiga lelei e aunoa ma le aafia o le tofo.
Humectant: I pastries ma lole, PPG galue e pei o se moisturizer e puipuia ai mago ma ta'e, fa'alautele le ola fa'asa.
6. Isi Vaega: Suiga Fa'atino ma Talosaga Ausilali
Faʻailoga ma Inks: I le faʻaopoopoga i polyurethane coatings, e mafai ona faʻaaogaina le PPG e fai ma sui mo alkyd ma epoxy resins, faʻaleleia atili o latou fetuutuunai, faʻavasegaina, ma vai faʻafefe. I vaitusi, e mafai ona fetuutuunai le viscosity ma faʻaleleia le mafai ona lolomi (faʻataʻitaʻiga, offset ma gravure inks).
Auxilia Auxilia: Faʻaaogaina e fai ma faʻamaʻi faʻamaʻi ma faʻamalulu mo ie, e faʻaitiitia ai le fausiaina ma faʻaleleia le vaivai. I le valiina ma le faʻamaeʻaina, e mafai ona faʻaaogaina e fai ma sui tulaga e faʻaleleia ai le faʻasalalauina o le vali ma faʻaleleia le tutusa o le vali.
Defoamers ma Demulsifiers: I le gaosiga o vailaʻau (faʻataʻitaʻiga, fai pepa ma vai otaota), e mafai ona faʻaogaina le PPG e fai ma faʻamalo e taofi ai le faʻafuʻa i le taimi o le gaosiga. I le gaosiga o le suauʻu, e mafai ona faʻaaogaina e avea o se demulsifier e fesoasoani e vavae ese le suauu mai le vai, ma faʻateleina ai le toe faʻaleleia o le suauu. Manatu Talosaga Autu: O le faʻaaogaina o le PPG e manaʻomia ai le iloiloga ma le totoa o le mamafa mole (faʻataʻitaʻiga, maualalo le mamafa o le mole e taulaʻi i solvents ma moisturizing, ae o le mamafa ma le maualuga o le molecular mamafa e taulaʻi i le emulsification ma le lubrication) ma le mama mama (o oloa mama maualuga e sili atu i meaʻai ma falemaʻi, ae o togi masani e mafai ona filifilia e faʻatatau i manaoga tau alamanuia). O nisi tusi talosaga e mana'omia fo'i suiga (fa'ata'ita'iga, fa'apipi'i po'o feso'ota'iga) e fa'aleleia ai le fa'atinoga (fa'ata'ita'iga, fa'aleleia o le vevela ma le mu). Faatasi ai ma le faʻateleina o manaʻoga mo le puipuiga o le siosiomaga ma le maualuga o le faʻatinoga, o le faʻaogaina o vaega ole PPG faʻaleleia (faʻataʻitaʻiga, PPG faʻavae olaola ma PPG biodegradable) ua faʻalauteleina.
Taimi meli: Oke-29-2025