Polypropylene glycol (PPG)yog ib tug non-ionic polymer tau los ntawm lub nplhaib-qhib polymerization ntawm propylene oxide. Nws muaj cov khoom tseem ceeb xws li kho dej solubility, dav viscosity ntau, muaj zog tshuaj lom neeg ruaj khov, thiab tsis muaj tshuaj lom. Nws cov ntawv thov siv ntau yam kev lag luam, suav nrog tshuaj, tshuaj, tshuaj txhua hnub, zaub mov, thiab kev tsim khoom lag luam. PPGs ntawm qhov sib txawv molecular hnyav (feem ntau yog li ntawm 200 txog 10,000) pom qhov sib txawv tseem ceeb. PPGs qis-molecular-yuag (xws li PPG-200 thiab 400) yog cov dej-soluble ntau dua thiab feem ntau siv los ua cov kuab tshuaj thiab cov yas yas. Nruab nrab- thiab siab-molecular-yuag PPGs (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 cov ncauj lus kom ntxaws tsom xam ntawm nws cov ntawv thov tseem ceeb:
1. Polyurethane (PU) Kev Lag Luam: Ib qho ntawm Cov Khoom Siv Hluav Taws Xob
PPG yog cov khoom siv tseem ceeb polyol rau kev tsim cov ntaub ntawv polyurethane. Los ntawm kev ua haujlwm nrog isocyanates (xws li MDI thiab TDI) thiab sib txuas nrog cov saw txuas ntxiv, nws tuaj yeem tsim cov khoom sib txawv ntawm PU, npog tag nrho cov khoom muag muag kom nruj ua npuas ncauj:
Polyurethane elastomers: PPG-1000-4000 feem ntau yog siv rau hauv kev npaj ntawm thermoplastic polyurethane (TPU) thiab cam khwb cia polyurethane elastomers (CPU). Cov elastomers no yog siv rau hauv cov khau khau (xws li cushioning midsoles rau cov khau kis las), cov khoom siv sib khi, cov hlua conveyor, thiab cov catheters kho mob (nrog biocompatibility zoo heev). Lawv muaj kev puas tsuaj, tsim kua muag, thiab yoog raws.
Polyurethane coatings / adhesives: PPG txhim kho qhov yooj yim, dej tsis kam, thiab adhesion ntawm coatings thiab yog siv nyob rau hauv automotive OEM xim, muaj anti-corrosion xim, thiab ntoo coatings. Hauv cov nplaum, nws txhim kho kev sib raug zoo thiab huab cua tiv thaiv, ua rau nws tsim nyog rau kev sib khi hlau, yas, tawv, thiab lwm yam ntaub ntawv.
2. Tshuaj lom neeg txhua hnub thiab kev saib xyuas tus kheej: Cov khoom siv ntxiv
PPG, vim nws qhov me me, emulsifying zog, thiab moisturizing zog, yog dav siv hauv kev tu tawv nqaij, tshuaj pleev ib ce, detergents, thiab lwm yam khoom. Cov khoom hnyav molecular sib txawv muaj lub luag haujlwm sib txawv:
Emulsifiers thiab Solubilizers: Nruab nrab molecular hnyav PPG (xws li PPG-600 thiab PPG-1000) feem ntau yog txuam nrog fatty acids thiab esters raws li ib tug nonionic emulsifier nyob rau hauv cream, lotions, tshuaj zawv plaub hau, thiab lwm yam formulations, stabilizing roj-dej systems thiab tiv thaiv kev sib cais. Tsawg molecular hnyav PPG (xws li PPG-200) tuaj yeem siv los ua cov tshuaj solubilizer, pab kom yaj cov roj-soluble cov khoom xyaw xws li fragrances thiab cov roj yam tseem ceeb hauv cov tshuaj aqueous.
Moisturizers thiab Emollients: PPG-400 thiab PPG-600 muab cov nyhuv me ntsis moisturizing thiab ua kom muaj zog, tsis muaj roj. Lawv tuaj yeem hloov qee cov glycerin hauv toners thiab cov ntshav, txhim kho cov khoom lag luam. Hauv cov cua txias, lawv tuaj yeem txo cov hluav taws xob zoo li qub thiab txhim kho cov plaub hau smoothness. Kev ntxuav cov khoom siv ntxiv: Hauv cov gels da dej thiab cov xab npum ntxuav tes, PPG tuaj yeem kho cov mis viscosity, txhim khu kev ruaj ntseg ua npuas ncauj, thiab txo qhov khaus ntawm surfactants. Nyob rau hauv cov tshuaj txhuam hniav, nws ua raws li ib tug humectant thiab thickener, tiv thaiv lub paste los ntawm qhuav thiab tawg.
3. Kev siv tshuaj thiab kev kho mob: Daim ntawv thov kev nyab xeeb siab
Vim nws tsis tshua muaj toxicity thiab zoo heev biocompatibility (raws li USP, EP, thiab lwm yam tshuaj cov qauv), PPG yog dav siv nyob rau hauv cov tshuaj formulations thiab cov ntaub ntawv kho mob.
Cov Khoom Siv Tshuaj thiab Cov Khoom Siv Tshuaj: Tsawg molecular hnyav PPG (xws li PPG-200 thiab PPG-400) yog cov kuab tshuaj zoo heev rau cov tshuaj tsis zoo soluble thiab tuaj yeem siv rau hauv qhov ncauj tshem tawm thiab cov tshuaj txhaj tshuaj (yuav tsum tau tswj hwm kev huv huv thiab tshem tawm cov kab tsis huv), txhim kho tshuaj solubility thiab bioavailability. Tsis tas li ntawd, PPG tuaj yeem siv los ua lub hauv paus suppository los txhim kho cov tshuaj tso tawm.
Kev Kho Mob Cov Khoom Siv Kho Mob: Hauv cov ntaub ntawv kho mob polyurethane (xws li cov hlab ntsha, lub plawv li qub, thiab cov tso zis tso zis), PPG tuaj yeem kho cov hydrophilicity thiab biocompatibility ntawm cov khoom, txo lub cev tiv thaiv kab mob thaum tseem txhim kho cov khoom siv tau yooj yim thiab cov ntshav corrosion kuj. Pharmaceutical Excipients: PPG tuaj yeem siv los ua cov khoom siv hauv cov tshuaj pleev thiab cov tshuaj pleev kom txhim kho cov tshuaj nkag mus rau ntawm daim tawv nqaij thiab tsim nyog rau cov tshuaj pleev xim (xws li tshuaj tua kab mob thiab tshuaj steroid).
4. Muaj Lubrication thiab Machinery: High-Performance Lubricants
PPG muaj lubricity zoo heev, tiv thaiv hnav, thiab ua haujlwm siab thiab kub tsis kam. Nws kuj muaj zog compatibility nrog ntxhia roj thiab additives, ua rau nws yog ib tug tseem ceeb raw khoom rau hluavtaws lubricants.
Hydraulic thiab Iav Roj: Nruab nrab- thiab siab-molecular-hnyav PPGs (xws li PPG-1000 thiab 2000) tuaj yeem siv los tsim cov khoom siv los tiv thaiv cov dej hydraulic haum rau cov tshuab hydraulic siab hauv kev tsim kho tshuab thiab cov cuab yeej siv tshuab. Lawv tuav zoo heev fluidity txawm nyob rau hauv qis kub. Hauv cov roj iav, lawv txhim khu kev tiv thaiv kev qaug dab peg thiab tiv thaiv kev hnav, ua kom lub neej ntev iav.
Cov kua dej ua haujlwm hlau: PPG tuaj yeem siv los ua cov khoom siv hlau ua haujlwm thiab sib tsoo cov kua dej, muab lubrication, txias, thiab tiv thaiv xeb, txo cov cuab yeej hnav thiab txhim kho kev ua haujlwm raug. Nws tseem yog biodegradable (qee qhov hloov kho PPGs ua tau raws li qhov kev thov rau cov khoom siv hluav taws xob zoo ib puag ncig). Tshwj xeeb Lubricants: Lubricants siv nyob rau hauv high-temperature, high-pressure, los yog tshwj xeeb tshaj tawm xov xwm (xws li acidic thiab alkaline ib puag ncig), xws li aerospace cov cuab yeej thiab tshuaj twj tso kua mis thiab li qub, tuaj yeem hloov cov roj ntxhia ib txwm siv thiab txhim kho cov khoom siv kev ntseeg siab.
5. Kev ua zaub mov: Khoom noj khoom haus-qib additives
Khoom noj khoom haus qib PPG (FDA-raws li kev cai) feem ntau yog siv rau emulsification, defoaming, thiab moisturizing hauv cov khoom noj:
Emulsification thiab Stabilization: Hauv cov khoom siv mis nyuj (xws li dej khov thiab qab zib) thiab cov khoom ci (xws li ncuav qab zib thiab qhob cij), PPG ua cov emulsifier los tiv thaiv cov roj sib cais thiab txhim kho cov khoom zoo nkauj thiab saj. Hauv dej haus, nws stabilizes flavour thiab pigments los tiv thaiv kev sib cais.
Defoamer: Hauv kev ua zaub mov fermentation (xws li npias thiab soy sauce brewing) thiab ua kua txiv hmab txiv ntoo, PPG ua raws li lub defoamer los txo cov foaming thiab txhim kho kev tsim khoom yam tsis muaj kev cuam tshuam qhov tsw.
Humectant: Nyob rau hauv pastries thiab candies, PPG ua raws li ib tug moisturizer los tiv thaiv kom qhuav thiab tawg, ncua lub txee lub neej.
6. Lwm thaj chaw: Kev hloov kho thiab kev pabcuam pabcuam
Txheej thiab Inks: Ntxiv nrog rau cov txheej txheem polyurethane, PPG tuaj yeem siv los ua tus hloov kho rau alkyd thiab epoxy resins, txhim kho lawv qhov yooj yim, theem, thiab dej tsis kam. Hauv inks, nws tuaj yeem kho viscosity thiab txhim khu kev luam ntawv (xws li offset thiab gravure inks).
Textile Auxiliaries: Siv los ua ib qho antistatic tag thiab softener rau textiles, nws txo cov static buildup thiab txhim khu softness. Hauv dyeing thiab xov, nws tuaj yeem siv los ua tus neeg sawv cev los txhim kho dyeing dispersion thiab txhim kho dyeing uniformity.
Defoamers thiab Demulsifiers: Hauv kev tsim tshuaj lom neeg (piv txwv li, papermaking thiab kev kho dej khib nyiab), PPG tuaj yeem siv los ua defoamer txhawm rau txhawm rau ua npuas dej thaum tsim khoom. Hauv kev tsim cov roj, nws tuaj yeem siv los ua demulsifier los pab cais cov roj crude los ntawm dej, yog li ua kom cov roj rov qab. Cov ntsiab lus tseem ceeb: Daim ntawv thov ntawm PPG yuav tsum tau ua tib zoo xav txog qhov hnyav molecular (xws li, qhov hnyav molecular tsis tshua muaj siab tsom rau cov kuab tshuaj thiab moisturizing, thaum nruab nrab- thiab siab molecular hnyav tsom rau emulsification thiab lubrication) thiab qib purity (cov khoom siv purity siab nyiam nyob rau hauv cov khoom noj thiab tshuaj kev lag luam, thaum cov txheej txheem yuav tsum tau xaiv). Qee daim ntawv thov kuj xav tau kev hloov kho (xws li, grafting lossis cross-linking) los txhim kho kev ua tau zoo (piv txwv li, txhim kho cov cua sov thiab cov nplaim hluav taws xob). Nrog rau kev xav tau ntau ntxiv rau kev tiv thaiv ib puag ncig thiab kev ua haujlwm siab, daim ntawv thov thaj chaw ntawm kev hloov kho PPG (xws li, bio-based PPG thiab biodegradable PPG) tau nthuav dav.
Post lub sij hawm: Oct-29-2025