Khoom Description
Kev taw qhia thiab kev siv ntawmStyrene Maleimide Copolymer|SMA-I|Styrene-maleic anhydride copolymer imidization khoom
Styrene-maleic anhydride copolymer (SMA) yog ib qho thermoplastic resin nrog kub ua hauj thiab zoo compatibility. Txawm li cas los xij, chav tsev txiv neej anhydride ntawm cov saw tseem ceeb ntawm nws cov molecule tau yooj yim hydrolyzed los ntawm tshav kub, ua rau txo cov neeg kho tshuab lub zog. Vim li no, tib neeg tau thov kom imidize cov txiv neej anhydride thiab qhia cov chav tsev maleimide rau hauv cov saw tseem ceeb ntawm nws cov polymer molecule kom tau txais styrene-maleimide copolymer (SMI) nrog kev ua tau zoo dua. Txog tam sim no, muaj ob txoj hauv kev los ua ke SMI: ncaj qha copolymerization ntawm styrene thiab maleimide thiab imidization ntawm SMA. Cov tom kawg yog kev lag luam ntau dua, ua haujlwm tau zoo thiab yoog raws. Txawm li cas los xij, txij li cov tshuaj tiv thaiv imidization ntawm SMA tau yooj yim cuam tshuam los ntawm steric hindrance nyhuv ntawm imidization reagent (ntau yam amines) thiab steric hindrance nyhuv ntawm SMA macromolecular saw nws tus kheej, nws yog ib qho nyuaj rau tag nrho SMA rau hauv SMI. Yog li ntawd, nws cov khoom imidization yuav muaj peb pawg: maleic anhydride, maleamic acid thiab maleimide.
Specification ntawmStyrene Maleimide Copolymer|SMA-I|Styrene-maleic anhydride copolymer imidization khoom
Kev ua tiav kev ua haujlwm ntawm styrene-maleic anhydride (SMA) copolymer dispersant yog qhov txaus nyiam heev tab sis tseem yog qhov nyuaj. Cov pa hloov pauv SMA dispersants muaj cov kauj ruam hloov kho nyuaj, kev ua haujlwm tsis zoo, thiab kev siv tsawg. Yog li, ib tug series ntawm styrene-maleimide (SMI) copolymer nrog txawv functionality raws li amphiphilic dispersants rau dispersing nano-SiO2 nyob rau hauv ib tug aqueous tov tau synthesized siv ib tug yooj yim txheej txheem. Cov kev hloov pauv hauv pawg txiv neej anhydride thaum lub sij hawm imidization tau taug qab siv FTIR spectroscopy, 1H-NMR, thiab GPC. Lub viscometer rotational thiab inverted lub raj mis txoj kev tau siv los ntsuas lub viscosity thiab coagulation lub sij hawm ntawm nano-SiO2 aqueous dispersion system, ntsig txog, tom qab ntxiv SMI dispersants. Qhov loj me me, qhov loj me me, thiab cov khoom sib nqus adsorption tus nqi ntawm cov dispersion tau soj ntsuam siv laser particle loj tsom xam; FTIR spectroscopy thiab SEM; thiab TGA, feem. Cov txiaj ntsig tau pom tias hydrogen bonds tsim los ntawm cov amino pawg hauv dispersant thiab hydroxyl pawg ntawm SiO2 nto thaum nplawm tso cai rau cov dispersant adsorbed mus rau SiO2 nto tom qab ntxiv rau nano-SiO2 aqueous system. Qhov sib ntxiv ntawm SMI dispersant txhim kho qhov steric hindrance thiab electrostatic repulsion ntawm nanoparticles, yog li ua rau nws ua tau rau SiO2 nanoparticles tsis yooj yim aggregate nyob rau hauv dej, txhim kho lawv dispersity thiab stability. Tsis tas li ntawd, hom thiab tus nqi ntawm SMI dispersant siv tau cuam tshuam rau SiO2 nanoparticles 'muaj peev xwm tawg hauv dej. Qhov no ua rau SiO2 hais yooj yim rau kev siv thiab thauj, tsis tsim cov plua plav paug, thiab yooj yim khaws cia.
Pob ntawmStyrene Maleimide Copolymer|SMA-I|Styrene-maleic anhydride copolymer imidization khoom
Specifications: 1kg, 10kg, 100kg, 1000kg (tuaj yeem ntim tau raws li cov neeg siv khoom xav tau)
Muaj nuj nqi thiab kev siv: Cov khoom no yog siv rau kev txiav txim siab cov ntsiab lus thiab tsis yog rau lwm lub hom phiaj.
Txoj kev khaws cia: 2-8 degree , khaws cia hauv qhov chaw txias thiab qhuav, deb ntawm lub teeb.
Lus Cim: Cov khoom no yuav tsum tau muab khaws cia ntawm qhov kub thiab txias. Cov ntsiab lus yuav txo qis yog tias raug huab cua ntev.
Cim npe nrov: styrene maleimide copolymer|sma-i|styrene-maleic anhydride copolymer imidization khoom, Tuam Tshoj styrene maleimide copolymer|sma-i|styrene-maleic anhydride copolymer imidization khoom manufacturers, hoobkas
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