Polypropylene glycol (PPG)ke polymer e seng ea ionic e fumanoang ka polymerization ea ring-opening ea propylene oxide. E na le thepa ea mantlha e kang ho qhibiliha ha metsi ho feto-fetohang, mefuta e mengata ea viscosity, botsitso bo matla ba lik'hemik'hale, le chefo e tlase. Ts'ebeliso ea eona e ama liindasteri tse ngata, ho kenyeletsoa lik'hemik'hale, meriana, lik'hemik'hale tsa letsatsi le letsatsi, lijo le tlhahiso ea indasteri. Li-PPG tsa boima bo fapaneng ba limolek'hule (hangata ho tloha ho 200 ho isa ho tse fetang 10,000) li bonts'a phapang e kholo ea ts'ebetso. Li-PPG tsa boima bo tlase ba limolek'hule (tse kang PPG-200 le 400) li qhibiliha ka metsing 'me hangata li sebelisoa e le li-solvents le li-plasticizers. Li-PPG tsa boima ba limolek'hule tse mahareng le tse phahameng (joalo ka PPG-1000 le 2000) li qhibiliha ka oli kapa li tiile 'me li sebelisoa haholo ho emulsification le ho kopanya ha elastomer. E latelang ke tlhahlobo e qaqileng ea libaka tsa eona tsa mantlha tsa ts'ebeliso:
1. Indasteri ea Polyurethane (PU): E 'ngoe ea Lisebelisoa tsa Core Raw
PPG ke sesebelisoa sa bohlokoa sa polyol bakeng sa tlhahiso ea thepa ea polyurethane. Ka ho sebetsana le li-isocyanate (tse kang MDI le TDI) le ho kopana le li-extensions tsa ketane, e ka hlahisa mefuta e fapaneng ea lihlahisoa tsa PU, e koahelang mefuta e mengata ea mefuta e bonolo ho isa ho e thata ea foam:
Li-elastomer tsa polyurethane: PPG-1000-4000 li sebelisoa hangata ha ho etsoa thermoplastic polyurethane (TPU) le li-elastomer tsa polyurethane (CPU). Li-elastomer tsena li sebelisoa ka har'a sole ea lieta (joalo ka li-midsoles tsa lieta tsa liatleletiki), litiiso tsa mochini, mabanta a tsamaisang thepa le li-catheter tsa bongaka (tse nang le biocompatibility e ntle haholo). Li fana ka khanyetso ea abrasion, ho hanyetsa meokho, le ho fetoha habonolo.
Liaparo tsa polyurethane / li-adhesives: PPG e ntlafatsa ho tenyetseha, ho hanyetsa metsi, le ho khomarela lirafshoa 'me e sebelisoa lipenteng tsa likoloi tsa OEM, lipente tse thibelang ho bola ha indasteri, le liphahlo tsa lehong. Likhomaretsing, e matlafatsa matla a maqhama le ho hanyetsa boemo ba leholimo, e etsa hore e tšoanelehe bakeng sa ho kopanya litšepe, polasetiki, letlalo le lisebelisoa tse ling.
2. Lik'hemik'hale Tsa Letsatsi le Letsatsi le Tlhokomelo ea Botho: Li-additives tse sebetsang
PPG, ka lebaka la bonolo ba eona, thepa ea eona ea ho etsa emulsifying, le thepa ea ho nosetsa, e sebelisoa haholo ho hlokomela letlalo, litlolo, litlolo le lihlahisoa tse ling. Lihlahisoa tse fapaneng tsa boima ba limolek'hule li na le mesebetsi e fapaneng:
Li-Emulsifiers le Solubilizers: PPG ea boima ba limolek'hule tse mahareng (joalo ka PPG-600 le PPG-1000) hangata e kopantsoe le li-acid tse mafura le li-ester joalo ka emulsifier e sa tloaelehang ho litlolo, litlolo, li-shampoo le lintho tse ling, ho tsitsisa litsamaiso tsa metsi a oli le ho thibela karohano. PPG ea boima ba limolek'hule e tlaase (e kang PPG-200) e ka sebelisoa e le solubilizer, e thusang ho qhaqha metsoako e qhibilihang ka oli e kang monko o monate le oli ea bohlokoa ka metsoako ea metsi.
Li-Moisturizers le Emollients: PPG-400 le PPG-600 li fana ka phello e itekanetseng ea mongobo le maikutlo a khathollang, a se nang mafura. Li ka nka sebaka sa glycerin ho li-toner le li-serum, ho ntlafatsa ho phalla ha sehlahisoa. Ka li-conditioner, li ka fokotsa motlakase o tsitsitseng le ho ntlafatsa moriri o boreleli. Ho Hloekisa Lisebelisoa tsa Lihlahisoa: Ka li-gels tsa shaoara le sesepa sa letsoho, PPG e ka fetola viscosity ea foromo, ea ntlafatsa botsitso ba foam, le ho fokotsa ho teneha ha li-surfactants. Ka sesepa sa meno, e sebetsa e le humectant le thickener, e thibelang pente ho omella le ho phunyeha.
3. Likopo tsa Meriana le tsa Bongaka: Likopo tsa Tšireletso e Phahameng
Ka lebaka la chefo e tlase le biocompatibility e ntle haholo (e tsamaellanang le USP, EP, le litekanyetso tse ling tsa meriana), PPG e sebelisoa haholo mekhoeng ea meriana le lisebelisoa tsa bongaka.
Li-Drug Carriers and Solvents: PPG e boima ba limolek'hule e tlaase (e kang PPG-200 le PPG-400) ke motsoako o babatsehang oa lithethefatsi tse sa qhibiliheng hantle 'me o ka sebelisoa ho emisoa ka molomo le liente (e hlokang taolo e tiileng ea bohloeki le ho tlosa litšila tse sa tšoaneng), ho ntlafatsa ho qhibiliha ha lithethefatsi le bioavailability. Ho feta moo, PPG e ka sebelisoa e le setsi sa suppository ho ntlafatsa tokollo ea lithethefatsi.
Phetoho ea Lintho tsa Bongaka: Ka thepa ea bongaka ea polyurethane (joalo ka methapo ea mali ea maiketsetso, li-valve tsa pelo le li-catheter tsa moroto), PPG e ka fetola hydrophilicity le biocompatibility ea thepa, ea fokotsa karabelo ea 'mele ea ho itšireletsa mafung ha e ntse e ntlafatsa ho tenyetseha ha thepa le ho hanyetsa ho bola ha mali. Lisebelisoa tsa Meriana: PPG e ka sebelisoa e le karolo ea motheo ea mafura le litlolo ho matlafatsa ho kenella ha lithethefatsi ka letlalo 'me e loketse meriana ea lihlooho (e kang litlolo tsa antibacterial le steroid).
4. Lisebelisoa tsa Liindasteri le Mechini: Lisebelisoa tse Phahameng ka ho Fetisisa
PPG e fana ka lubricity e ntle haholo, thepa ea anti-wear, le khanyetso e phahameng le e tlase ea mocheso. E boetse e na le tšebelisano e matla le lioli tsa diminerale le li-additives, e leng se etsang hore e be thepa e ka sehloohong e tala bakeng sa mafura a maiketsetso.
Oli ea Hydraulic le Gear: Li-PPG tsa boima ba limolek'hule tse mahareng le tse phahameng (tse joalo ka PPG-1000 le 2000) li ka sebelisoa ho theha maro a anti-wear hydraulic a loketseng litsamaiso tsa hydraulic tse nang le khatello e matla mecheng ea kaho le lisebelisoa tsa mochini. Ba boloka metsi a babatsehang esita le ka mocheso o tlase. Lioling tsa li-gear, li ntlafatsa thepa ea anti-seizure le anti-wear, e lelefatsa bophelo ba lisebelisoa.
Mekelikeli ea Metalworking: PPG e ka sebelisoa e le tlatsetso mosebetsing oa tšepe le maro a silang, ho fana ka lubrication, ho pholisa le ho thibela mafome, ho fokotsa ho roala ha lisebelisoa le ho ntlafatsa ho nepahala ha mochini. E boetse e khona ho bola (li-PPG tse ling tse fetotsoeng li fihlela tlhoko ea maro a sehang tikolohong). Lisebelisoa tse khethehileng: Litlolo tse sebelisoang mochesong o phahameng, khatello e phahameng, kapa mecha ea litaba e khethehileng (joaloka libaka tse nang le asiti le alkaline), joalo ka lisebelisoa tsa sefofane le lipompo tsa lik'hemik'hale le li-valve, li ka nka sebaka sa oli ea setso ea liminerale le ho ntlafatsa ts'epo ea lisebelisoa.
5. Phetoho ea Lijo: Li-additives tsa Sehlopha sa Lijo
Food-grade PPG (FDA-compliant) e sebelisoa haholo-holo bakeng sa emulsification, defoaming, le moisturizing ha ho etsoa lijo:
Emulsification le botsitso: Lihlahisoa tsa lebese (tse kang ice cream le tranelate) le lintho tse halikiloeng (tse kang likuku le bohobe), PPG e sebetsa e le emulsifier ho thibela karohano ea oli le ho ntlafatsa sebopeho sa sehlahisoa le tatso. Ka lino tse tahang, e tsitsisa litatso le li-pigments ho thibela karohano.
Defoamer: Ts'ebetsong ea ho belisoa ha lijo (joalo ka ho riteloa ha biri le soy sauce) le ts'ebetso ea lero, PPG e sebetsa joalo ka defoamer ho hatella ho phophoma le ho ntlafatsa ts'ebetso ea tlhahiso ntle le ho ama tatso.
Humectant: Ka likuku le lipompong, PPG e sebetsa joalo ka moisturizer ho thibela ho omisa le ho peperana, ho lelefatsa bophelo ba sethala.
6. Libaka tse ling: Phetoho ea Mosebetsi le Likopo tse Thusang
Liaparo le Li-inks: Ntle le liphahlo tsa polyurethane, PPG e ka sebelisoa e le mokhoa oa ho fetola li-alkyd le li-epoxy resin, ho ntlafatsa ho tenyetseha ha tsona, ho lekana le ho hanyetsa metsi. Ka li-inks, e ka fetola viscosity le ho ntlafatsa khatiso (mohlala, li-inks tsa offset le gravure).
Textile Auxiliaries: E sebelisoa e le ntho e thibelang ho tsitsa le ho nolofatsa masela, e fokotsa ho haha e tsitsitseng le ho ntlafatsa bonolo. Ha ho dauoa le ho phethela, e ka sebelisoa e le mokhoa oa ho leka-lekanya ho ntlafatsa ho hasana ha dae le ho ntlafatsa ho tšoana ha dae.
Li-Defoamers le li-Demulsifiers: Tlhahisong ea lik'hemik'hale (mohlala, ho etsa pampiri le ho hloekisa metsi a litšila), PPG e ka sebelisoa e le sekoahelo ho thibela ho phophoma nakong ea tlhahiso. Tlhahisong ea oli, e ka sebelisoa joalo ka demulsifier ho thusa ho arola oli e tala le metsi, ka hona ho eketsa ho hlaphoheloa ha oli. Lintlha tsa Bohlokoa tsa Kopo: Ts'ebeliso ea PPG e hloka ho shebisisa boima ba limolek'hule (mohlala, boima bo tlase ba limolek'hule bo shebane le solvents le moisturizing, ha boima ba limolek'hule bo mahareng le bo phahameng bo shebane le ho emulsification le lubrication) le boemo ba bohloeki (lihlahisoa tsa bohloeki bo phahameng li ratoa indastering ea lijo le ea meriana, athe limaraka tse tloaelehileng li ka khethoa ho latela litlhoko tsa indasteri). Lisebelisoa tse ling li boetse li hloka phetoho (mohlala, ho hlomathiseletsoa kapa ho kopanya) ho matlafatsa ts'ebetso (mohlala, ho matlafatsa ho hanyetsa mocheso le ho lieha ha lelakabe). Ka litlhoko tse ntseng li eketseha tsa ts'ireletso ea tikoloho le ts'ebetso e phahameng, libaka tsa ts'ebeliso ea PPG e fetotsoeng (mohlala, PPG e thehiloeng ho bioloji le PPG e ka senyehang) lia hola.
Nako ea poso: Oct-29-2025