Khoom taw qhia
Polyvinylamine yog ib qho dej-soluble heev cationic polymer. Nws yog hygroscopic, soluble hauv dej, ethanol, thiab insoluble hauv benzene. Nws cov tshuaj aqueous yog qhov zoo thiab yuav gel nyob rau hauv lub xub ntiag ntawm acid. Polyvinylamine muaj qhov ua haujlwm siab thiab tuaj yeem hnov mob nrog hydroxyl pawg hauv cellulose thiab cross-link thiab polymerize, ua rau daim ntawv ua kom muaj zog ntub thiab qhuav qhov cuab lub zog. Lub xub ntiag ntawm cov kua qaub, alkali thiab txhuas sulfate yuav cuam tshuam rau nws lub zog ntub thiab tuav. Nws yog tsuas yog siv los ua tus neeg sawv cev ntub dej rau cov ntawv tsis zoo (xws li daim ntawv lim, daim ntawv blotting, ntawv tso quav, thiab lwm yam), tab sis nws cov ntawv puas yog qhov nyuaj rau kev daws teeb meem. Tsis tas li ntawd, nws tuaj yeem ua kom pom cov ntaub ntawv ntawm daim ntawv thiab ua kom cov fibers zoo hauv dej dawb yooj yim rau flocculate. Nws muaj lub zog ruaj khov rau cov kua qaub dyes thiab tuaj yeem siv los ua tus neeg sawv cev kho thaum dyeing ntawv nrog cov kua qaub dyes. Nws tseem tuaj yeem siv los kho cellophane kom txo qis deformation ntawm daim ntawv. Polyvinylamine kuj tseem siv tau rau kev hloov kho fiber ntau, luam ntawv thiab dyeing auxiliaries, ion exchange resins, thiab coagulation thiab sedimentation (hlau capture, dej khib nyiab), thiab lwm yam.
Lub cev muaj zog
| Molecular hnyav | Txog 110,000(Molecular hnyav txog 3 lab) |
| Cov ntsiab lus (wt%) | Txog 30% |
| Lub ntiajteb txawj nqus (25 degree) | 1.06 |
| Qhov tshwm sim | lub teeb daj viscous kua |
| pH (5% aq) | 10-12 |
| Decomposition kub (degree) | 300 |
| Solubility | Soluble hauv dej |
Muaj nuj nqi
High adhesion thiab adsorption
Cov pab pawg amine tuaj yeem hnov mob nrog pawg hydroxyl los tsim ib daim ntawv cog lus hydrogen, pawg amine tuaj yeem hnov mob nrog pawg carboxyl los ua ib daim ntawv cog lus ionic, thiab pawg amine kuj tuaj yeem cuam tshuam nrog cov pab pawg carbonyl los tsim cov ntawv cog lus. Nyob rau tib lub sij hawm, vim nws cov polar pawg (amine pawg) thiab hydrophobic pawg (vinyl) qauv, nws tuaj yeem ua ke nrog cov khoom sib txawv. Siv cov kev sib txuas ua ke no, nws tuaj yeem siv dav hauv cov nplaum, inks, coatings, adhesives thiab lwm yam.
Siab cationicity
Nws muaj nyob rau hauv daim ntawv ntawm polycation nyob rau hauv dej thiab muaj peev xwm neutralize thiab adsorb tag nrho cov anionic tshuaj. Nws tseem tuaj yeem chelate hnyav hlau ions. Siv nws cov qib siab ntawm cationicity, nws tuaj yeem siv rau hauv papermaking, dej kho, electroplating daws, dispersants thiab lwm yam.
Reactive heev
Ua reactive heev, nws reacts yooj yim nrog epoxies, aldehydes, isocyanate tebchaw thiab acidic gases. Siv cov tshuaj tiv thaiv cov yam ntxwv no, nws tuaj yeem siv los ua epoxy resin modifier, aldehyde adsorbent thiab dye fixative.
Cia
Khaws rau hauv qhov chaw qhuav ntawm chav tsev kub!
Cim npe nrov: polyvinylamine|cas:183815-54-5, Tuam Tshoj polyvinylamine|cas:183815-54-5 manufacturers, hoobkas
