1,3-Propanediol CAS 504-63-2

2. Lub cev thiab tshuaj lom neeg Cov khoom

• Qhov tsos:Tsis muaj xim pob tshab kua nplaum, me ntsis qab zib, hygroscopic
• Melting point:Kwv yees li -27 degree
• Boiling point:Kwv yees li 214℃(760 mmHg)
• Ceev:Kwv yees li 1.053 g / cm³ (25 degree)
• Flash point:Kwv yees li 80℃(kaw khob)
• viscosity:Kwv yees li 45 mPa·s (25 degree)
• Refractive Index:Kwv yees li 1.439 (nD20)
• Solubility:Miscible nrog dej, methanol, ethanol, acetone thiab ether; soluble hauv chloroform; me ntsis soluble hauv benzene
• Kev ruaj ntseg:Chemically ruaj khov, tsawg volatility thiab tsawg toxicity. Ib tug thawj linear diol nrog ob lub davhlau ya nyob twg hydroxyl pawg muab siab reactivity rau polycondensation thiab polyaddition.

3.Main Functions and Applications (Nws yog dab tsi siv?)

• Monomer rau PTT polyester (cov ntawv thov tseem ceeb)

Polytrimethylene terephthalate (PTT): Polycondensed nrog purified terephthalic acid (PTA) los tsim PTT, bio-raws li polyester nrog zoo elastic rov qab, softness, dyeability thiab tsawg- kub kuj. Dav siv nyob rau hauv cov ntaub pua plag fibers, apparel textiles, films thiab engineering plastics.

• Tshuaj pleev ib ce thiab tus kheej -cov khoom siv tu

Raws li lub ntuj tsim - muab tau los ntawm humectant, emollient thiab hnyav (INCI lub npe "Propanediol"), nws ua haujlwm me me, tawv nqaij- lwm txoj hauv kev zoo rau propylene glycol hauv cov tshuaj pleev, tshuaj pleev, tshuaj pleev thiab tshuaj ntxuav.

• Lub tsev thaiv rau polyurethane, polyester thiab polyether

Siv los ua diol chain extender thiab polyol intermediate rau siab -kev ua tau zoo polyurethane resins, coatings thiab elastic fibers.

• Cov kuab tshuaj thiab dej ua haujlwm

Ua hauj lwm raws li lub siab - boiling solvent, antifreeze, deicing kua thiab cua sov-hloov nruab nrab nrog ib tug haum ib puag ncig profile.

• Lwm daim ntawv thov

Kuj tseem siv tau rau hauv cov tshuaj excipients, inks thiab nplua -chemical synthesis.

4.4.A Benchmark-Level Industrial Masterpiece - Ib qho yooj yim Crafted "Bio-PTT-Qib" Cornerstone Diol!

• Ua los ntawm kev txuas ntxiv fermentation los ntawm qabzib, qhov bio-raws li 1,3-PDO muaj ntawv pov thawj ruaj khov, qis- carbon hneev taw yam tsis muaj kev cuam tshuam kev lag luam precision - cov monomer nyiam rau niaj hnub no eco-conscious PTT tus nqi saw.
• Ultra- cov ntsiab lus aldehyde qis (feem ntau Tsawg dua lossis sib npaug li 50 ppm) ua kom cov daus-dawb, tsis yog- daj PTT fibers thiab cov yeeb yaj kiab uas muaj xim zoo dua, tsis muaj xim thaum lub sij hawm siab - kub polycondensation.
• Ultra- noo noo tsawg (tsawg dua los yog sib npaug rau 0.10%, feem ntau 0.046%) tiv thaiv hydrolysis sab cov tshuaj tiv thaiv thiab stabilizes polymerization kinetics, xa cov intrinsic viscosity batch tom qab batch.
• Ultra- tus nqi qis qis (tsawg dua lossis sib npaug li 0.10 mg KOH / g) txo qis corrosion ntawm cov khoom siv thiab zam cov tshuaj lom catalyst, ua kom cov txheej txheem huv, ruaj khov esterification.
• Crystal- xim ntshiab (Pt-Co tsawg dua lossis sib npaug li 10, feem ntau yog 5) thiab siab purity yield premium-polyesters meej thiab ua kom zoo nkauj zoo nkauj hauv cov qauv tshuaj pleev ib ce.
• Tsis tu ncua, symmetric C3 qauv nrog ob lub davhlau ya nyob twg thawj hydroxyl confers tus yam ntxwv "khob- carbon" elasticity rau PTT, muab fibers zoo stretch rov qab uas outperforms PET thiab PBT. "Dab tsi koj pom yog qhov koj tau txais" - txhua lub nkoj ntau nrog daim ntawv pov thawj tag nrho ntawm kev soj ntsuam npog purity, dej, xim, acid tus nqi, aldehyde ntsiab lus, pH thiab refractive index, yog li downstream kev ua tau zoo yog tag nrho traceable thiab reproducible.