Alaabooyinka Hydroxypropyl Methyl Cellulose waxay leeyihiin isticmaalka ugu badan ee aagga polymerization ee vinyl chloride ee Shiinaha. Xakamaynta polymerization ee chloride vinyl, nidaamka kala firdhiyey wuxuu saameyn toos ah ku leeyahay badeecada, xabagta PVC, iyo tayada farsamaynteeda iyo alaabteeda. HydroxypropylMethylCellulose waxay gacan ka geysataa hagaajinta xasilloonida kulaylka resin iyo xakamaynta qaybinta cabbirka walxaha..Xabagta PVC ee laga sameeyay tayada sare ee HydroxypropylMethylCellulose ma aha oo kaliya inay hubiso xariiqda waxqabadka ee heerarka caalamiga ah, laakiin sidoo kale waxay yeelan kartaa sifooyin muuqaal ah oo muuqda, sifooyin gaar ah oo aad u fiican iyo dabeecad dhalaaleed oo heer sare ah.
Soo saarista xabagta synthetic, sida polyvinyl chloride, chloride polyvinylidene, iyo copolymers kale, polymerization-ka joojinta ayaa ah tan ugu badan ee la isticmaalo waana inay noqotaa monomers hydrophobic-ka ah oo aan kala sooc lahayn oo ku xayiran biyaha. Sida polymers-ka biyaha ku milma, alaabada HydroxypropylMethylCellulose waxay leedahay firfircooni dusha sare ah oo aad u fiican waxayna u shaqeysaa sida wakiilada kolloidalka ah ee ilaaliya. HydroxypropylMethylCellulosecan waxay si wax ku ool ah uga hortagtaa walxaha polymeric inay soo saaraan oo ay sii xumaadaan. Intaa waxaa dheer, in kasta oo HydroxypropylMethylCelluloseis ah polymerka biyaha, waxay noqon kartaa wax yar oo milmi kara monomers hydrophobic waxayna kordhin kartaa porosity monomer ee soo saarista qaybaha polymeric.
Intaa waxaa dheer, daraasaduhu waxay muujiyeen in habka wax soo saarka ee PVC, shirkadaha kala duwan ay isticmaalaan nidaam kala firdhisan oo kala duwan, sidaas darteed guryaha daahan dibadda ee PVC soo saaray ayaa sidoo kale kala duwan, oo sidaas HydroxypropylMethylCellulose saamayn kartaa waxqabadka processing ee xabagta PVC. In nidaamka wakiilka kala firdhiso isku dhafan, xabagta PVC ganaax laga diyaariyey wakiilka kala firdhiyey ee polyvinyl khamriga (PVA) oo leh alkoholyssis kala duwan iyo darajo polymerization iyo hydroxypropyl methyl cellulose (HPMC) laga yaabaa in ay saameyn kala duwan ku saabsan waxqabadka processing. Tijaabooyinku waxay muujiyeen in isku dhafka HydroxypropylMethylCellulose iyo KP-08/KZ-04 oo leh heerka alkolysis ee 68% -75% ay ka fiican tahay oo ay sidoo kale faa'iido u leedahay porosity of resin iyo nuugista balaastikada.
Waqtiga boostada: Abriil-01-2022