Polypropylene glycol (PPG)yog ib qho polymer uas tsis yog ionic tau los ntawm kev sib xyaw ua ke ntawm propylene oxide. Nws muaj cov khoom tseem ceeb xws li kev hloov kho dej solubility, ntau yam viscosity, ruaj khov tshuaj lom neeg, thiab tsis muaj tshuaj lom. Nws daim ntawv thov dav dav hauv ntau yam lag luam, suav nrog cov tshuaj lom neeg, tshuaj, tshuaj txhua hnub, khoom noj, thiab kev tsim khoom lag luam. PPGs ntawm cov qhov hnyav molecular sib txawv (feem ntau yog txij li 200 txog ntau dua 10,000) qhia txog qhov sib txawv ntawm kev ua haujlwm. PPGs qis-molecular-weight (xws li PPG-200 thiab 400) yog cov dej-soluble ntau dua thiab feem ntau siv ua cov kuab tshuaj thiab cov yas. PPGs nruab nrab- thiab siab-molecular-weight (xws li PPG-1000 thiab 2000) yog cov roj-soluble lossis semi-khoom thiab feem ntau yog siv hauv emulsification thiab elastomer synthesis. Cov hauv qab no yog kev tshuaj xyuas ntxaws ntxaws ntawm nws cov cheeb tsam thov tseem ceeb:
1. Kev Lag Luam Polyurethane (PU): Ib qho ntawm Cov Khoom Siv Raw Tseem Ceeb
PPG yog ib qho khoom siv tseem ceeb polyol rau kev tsim cov khoom siv polyurethane. Los ntawm kev cuam tshuam nrog isocyanates (xws li MDI thiab TDI) thiab ua ke nrog cov saw hlau txuas, nws tuaj yeem tsim ntau hom khoom PU, npog tag nrho cov pawg mos mos rau cov khoom ua npuas ncauj:
Cov Polyurethane elastomers: PPG-1000-4000 feem ntau siv rau hauv kev npaj cov thermoplastic polyurethane (TPU) thiab cast polyurethane elastomers (CPU). Cov elastomers no yog siv rau hauv cov khau hauv qab (xws li cov cushioning midsoles rau cov khau kis las), cov khoom siv kho tshuab, cov siv conveyor, thiab cov catheters kho mob (nrog biocompatibility zoo heev). Lawv muab kev tiv thaiv kev sib txhuam, kev tiv thaiv kev tsim kua muag, thiab kev ywj pheej.
Cov txheej polyurethane/cov nplaum: PPG txhim kho qhov yooj ywm, tiv taus dej, thiab lo rau cov txheej thiab siv rau hauv cov xim OEM tsheb, cov xim tiv thaiv xeb hauv kev lag luam, thiab cov txheej ntoo. Hauv cov nplaum, nws ua rau lub zog sib txuas thiab tiv taus huab cua, ua rau nws tsim nyog rau kev sib txuas cov hlau, yas, tawv, thiab lwm yam khoom siv.
2. Cov Tshuaj Txhua Hnub thiab Kev Saib Xyuas Tus Kheej: Cov Tshuaj Ntxiv Uas Ua Haujlwm Tau Zoo
PPG, vim nws qhov mos mos, cov khoom emulsifying, thiab cov khoom moisturizing, yog siv dav hauv kev saib xyuas tawv nqaij, tshuaj pleev ib ce, tshuaj ntxuav tes, thiab lwm yam khoom. Cov khoom sib txawv ntawm qhov hnyav molecular muaj lub luag haujlwm sib txawv:
Cov Tshuaj Emulsifiers thiab Cov Tshuaj Solubilizers: PPG uas muaj qhov hnyav molecular nruab nrab (xws li PPG-600 thiab PPG-1000) feem ntau yog sib xyaw nrog cov roj fatty acids thiab esters ua cov tshuaj emulsifier nonionic hauv cov tshuaj pleev, tshuaj pleev, tshuaj zawv plaub hau, thiab lwm yam tshuaj, ua kom cov roj-dej ruaj khov thiab tiv thaiv kev sib cais. PPG uas muaj qhov hnyav molecular qis (xws li PPG-200) tuaj yeem siv ua cov tshuaj solubilizer, pab yaj cov khoom xyaw uas yaj tau hauv roj xws li tshuaj tsw qab thiab cov roj tseem ceeb hauv cov tshuaj aqueous.
Cov Tshuaj Moisturizers thiab Emollients: PPG-400 thiab PPG-600 muab cov nyhuv moisturizing nruab nrab thiab qhov tshiab, tsis yog greasy. Lawv tuaj yeem hloov qee cov glycerin hauv toners thiab serums, txhim kho cov khoom glide. Hauv cov conditioners, lawv tuaj yeem txo cov hluav taws xob static thiab txhim kho cov plaub hau du. Cov Khoom Siv Ntxuav: Hauv cov gels da dej thiab xab npum tes, PPG tuaj yeem kho cov mis viscosity, txhim kho kev ruaj khov ntawm cov ua npuas ncauj, thiab txo qhov khaus ntawm surfactants. Hauv cov tshuaj txhuam hniav, nws ua haujlwm ua humectant thiab thickener, tiv thaiv cov nplaum los ntawm kev qhuav thiab tawg.
3. Kev Siv Tshuaj thiab Kev Kho Mob: Kev Siv Kev Nyab Xeeb Siab
Vim nws tsis muaj tshuaj lom thiab biocompatibility zoo heev (ua raws li USP, EP, thiab lwm yam qauv tshuaj), PPG siv dav hauv cov tshuaj formulations thiab cov ntaub ntawv kho mob.
Cov Tshuaj Nqa thiab Cov Tshuaj Yaj: PPG uas tsis hnyav molecular (xws li PPG-200 thiab PPG-400) yog cov tshuaj yaj zoo heev rau cov tshuaj yaj tsis tau zoo thiab siv tau rau hauv cov tshuaj haus thiab cov tshuaj txhaj (yuav tsum tau tswj kev huv huv thiab tshem tawm cov khoom tsis huv), txhim kho kev yaj tshuaj thiab kev siv tau. Ntxiv mus, PPG tuaj yeem siv ua lub hauv paus suppository los txhim kho kev tso tshuaj.
Kev Hloov Kho Khoom Siv Kho Mob: Hauv cov ntaub ntawv kho mob polyurethane (xws li cov hlab ntsha dag, lub plawv valve, thiab cov catheters tso zis), PPG tuaj yeem kho qhov hydrophilicity thiab biocompatibility ntawm cov khoom, txo qhov kev tiv thaiv kab mob ntawm lub cev thaum tseem txhim kho cov khoom siv qhov yooj ywm thiab cov ntshav tiv thaiv corrosion. Cov Tshuaj Excipients: PPG tuaj yeem siv ua cov khoom siv hauv paus hauv cov tshuaj pleev thiab tshuaj pleev kom txhim kho kev nkag mus ntawm cov tshuaj los ntawm daim tawv nqaij thiab tsim nyog rau cov tshuaj pleev sab nraud (xws li cov tshuaj tua kab mob thiab cov tshuaj steroid).
4. Kev Siv Lubrication thiab Machinery Hauv Kev Lag Luam: Cov Roj Uas Muaj Peev Xwm Zoo
PPG muaj cov roj nplua nyeem zoo heev, tiv thaiv kev hnav, thiab tiv taus kub thiab txias. Nws kuj muaj kev sib raug zoo nrog cov roj av thiab cov khoom ntxiv, ua rau nws yog cov khoom siv tseem ceeb rau cov roj nplua nyeem hluavtaws.
Cov Roj Hydraulic thiab Gear: Cov PPGs nruab nrab thiab siab molecular-weight (xws li PPG-1000 thiab 2000) siv tau los tsim cov kua hydraulic tiv thaiv kev hnav uas tsim nyog rau cov tshuab hydraulic siab hauv cov tshuab siv hauv kev tsim kho thiab cov cuab yeej siv tshuab. Lawv tswj tau qhov fluidity zoo heev txawm tias nyob rau hauv qhov kub qis. Hauv cov roj iav, lawv txhim kho cov khoom tiv thaiv kev sib tsoo thiab tiv thaiv kev hnav, ua kom lub neej iav ntev dua.
Cov Kua Ua Haujlwm Hlau: PPG siv tau ua cov khoom ntxiv rau hauv cov kua ua haujlwm hlau thiab cov kua sib tsoo, muab kev nplua, txias, thiab tiv thaiv xeb, txo cov cuab yeej hnav thiab txhim kho qhov tseeb ntawm kev ua haujlwm. Nws kuj yog biodegradable (qee cov PPGs hloov kho tau raws li qhov xav tau rau cov kua txiav uas tsis ua rau ib puag ncig puas tsuaj). Cov Roj Tshwj Xeeb: Cov roj nplua nyeem siv rau hauv qhov kub thiab txias, siab, lossis cov xov xwm tshwj xeeb (xws li cov chaw acidic thiab alkaline), xws li cov khoom siv aerospace thiab cov twj tso kua tshuaj thiab cov li qub, tuaj yeem hloov cov roj av ib txwm muaj thiab txhim kho kev ntseeg siab ntawm cov khoom siv.
5. Kev Ua Zaub Mov: Cov Khoom Siv Ntxiv Rau Qib Zaub Mov
PPG qib zaub mov (FDA-ua raws li) feem ntau yog siv rau emulsification, defoaming, thiab moisturizing hauv kev ua zaub mov:
Kev Ua Kom Sib Xyaws Thiab Kev Ruaj Khob: Hauv cov khoom noj mis nyuj (xws li ice cream thiab cream) thiab cov khoom ci (xws li ncuav mog qab zib thiab mov ci), PPG ua haujlwm ua tus emulsifier los tiv thaiv kev sib cais roj thiab txhim kho cov qauv khoom sib xws thiab saj. Hauv cov dej haus, nws ua kom cov saj thiab cov xim ruaj khov kom tiv thaiv kev sib cais.
Defoamer: Hauv cov txheej txheem fermentation zaub mov (xws li npias thiab kua ntses kua txob) thiab kev ua kua txiv hmab txiv ntoo, PPG ua haujlwm ua tus defoamer los tswj kev ua npuas dej thiab txhim kho kev ua haujlwm ntau lawm yam tsis cuam tshuam rau qhov saj.
Cov tshuaj ua kom noo noo: Hauv cov khoom qab zib thiab khoom qab zib, PPG ua haujlwm ua cov tshuaj ua kom noo noo kom tiv thaiv kev qhuav thiab tawg, ua kom lub txee ntev dua.
6. Lwm Cov Cheeb Tsam: Kev Hloov Kho Kev Ua Haujlwm thiab Kev Siv Pabcuam
Cov Tshuaj Pleev Xim thiab Cov Kua Xim: Ntxiv rau cov tshuaj pleev xim polyurethane, PPG tuaj yeem siv los ua cov khoom hloov kho rau cov alkyd thiab epoxy resins, txhim kho lawv qhov yooj ywm, qib, thiab tiv taus dej. Hauv cov kua xim, nws tuaj yeem kho qhov viscosity thiab txhim kho kev luam tawm (piv txwv li, cov kua xim offset thiab gravure).
Cov Khoom Pab Txhawb Nqa Textile: Siv ua cov tshuaj tiv thaiv hluav taws xob thiab cov tshuaj ua kom mos rau cov ntaub, nws txo cov khoom siv hluav taws xob thiab ua kom mos dua. Hauv kev zas xim thiab ua tiav, nws tuaj yeem siv ua tus neeg sawv cev kom txhim kho cov xim sib kis thiab txhim kho kev sib xws ntawm cov xim.
Cov Tshuaj Defoamers thiab Demulsifiers: Hauv kev tsim tshuaj lom neeg (piv txwv li, kev ua ntawv thiab kev kho dej khib nyiab), PPG tuaj yeem siv ua cov tshuaj defoamer los tiv thaiv kev ua npuas ncauj thaum lub sijhawm tsim khoom. Hauv kev tsim roj, nws tuaj yeem siv ua cov tshuaj demulsifier los pab cais cov roj nyoos ntawm dej, yog li ua kom cov roj rov qab zoo dua. Cov Ntsiab Lus Tseem Ceeb ntawm Daim Ntawv Thov: Daim ntawv thov ntawm PPG yuav tsum tau xav txog qhov hnyav molecular (piv txwv li, qhov hnyav molecular qis tsom mus rau cov kuab tshuaj thiab moisturizing, thaum qhov hnyav molecular nruab nrab thiab siab tsom mus rau emulsification thiab lubrication) thiab qib purity (cov khoom purity siab yog nyiam hauv kev lag luam zaub mov thiab tshuaj, thaum cov qib txheem tuaj yeem xaiv raws li kev xav tau kev lag luam). Qee daim ntawv thov kuj xav tau kev hloov kho (piv txwv li, grafting lossis cross-linking) los txhim kho kev ua tau zoo (piv txwv li, txhim kho kev tiv thaiv cua sov thiab nplaim taws retardancy). Nrog rau kev thov nce ntxiv rau kev tiv thaiv ib puag ncig thiab kev ua tau zoo, thaj chaw thov ntawm hloov kho PPG (piv txwv li, bio-based PPG thiab biodegradable PPG) tab tom nthuav dav.
Lub sijhawm tshaj tawm: Lub Kaum Hli-29-2025