Imikhiqizo ye-Hydroxypropyl Methyl Cellulose inokusetshenziswa okuphezulu kakhulu endaweni yokumiswa kwe-vinyl chloride eShayina. Ekumisweni kwe-vinyl chloride, uhlelo oluhlakazekile lunomthelela oqondile kumkhiqizo, i-PVC resin, kanye nekhwalithi yokucubungula kwayo kanye nemikhiqizo. I-HydroxypropylMethylCellulose isiza ukuthuthukisa ukuzinza kokushisa kwe-resin nokulawula ukusatshalaliswa kosayizi wezinhlayiya..I-resin ye-PVC eyenziwe nge-HydroxypropylMethylCellulose esezingeni eliphezulu ayigcini nje ngokuqinisekisa ukuhambisana nokusebenza okuvumelana nezindinganiso zomhlaba wonke, kodwa futhi ingaba nezakhiwo ezibonakalayo ezinhle, izakhiwo zezinhlayiya ezinhle kakhulu kanye nokuziphatha okuhle kakhulu kwe-rheological okuncibilikayo.
Ekukhiqizweni kwama-resin okwenziwa, njenge-polyvinyl chloride, i-polyvinylidene chloride, namanye ama-copolymer, i-suspension polymerization iyona esetshenziswa kakhulu futhi kumele ibe ama-monomer angaguquki e-hydrophobic alengiswe emanzini. Njengama-polymer ancibilika emanzini, umkhiqizo we-HydroxypropylMethylCellulose unomsebenzi omuhle kakhulu wobuso futhi usebenza njengezinto ezivikelayo ze-colloidal. I-HydroxypropylMethylCellulose ingavimbela ngempumelelo izinhlayiya ze-polymeric ukuthi zikhiqize futhi zihlangane. Ngaphezu kwalokho, yize i-HydroxypropylMethylCellulose iyi-polymer encibilika emanzini, ingancibilika kancane kuma-monomer e-hydrophobic futhi ingandisa i-monomer porosity yokukhiqizwa kwezinhlayiya ze-polymeric.
Ngaphezu kwalokho, izifundo zikhombisile ukuthi enkambisweni yokukhiqiza i-PVC, amabhizinisi ahlukene asebenzisa uhlelo oluhlukene oluhlakazekile, ngakho-ke izakhiwo zokugqoka zangaphandle ze-PVC ezikhiqizwayo nazo zihlukile, ngakho-ke i-HydroxypropylMethylCellulose ingathinta ukusebenza kokucubungula kwama-resin e-PVC. Kuhlelo lwe-composite dispersing agent, i-suspension PVC resin elungiselelwe kusuka ku-composite dispersing agent ye-polyvinyl alcohol (PVA) enamazinga ahlukene e-alcoholization kanye ne-polymerization degrees kanye ne-hydroxypropyl methyl cellulose (HPMC) ingaba nemiphumela ehlukene ekusebenzeni kokucubungula. Ukuhlolwa kubonise ukuthi i-compound ye-HydroxypropylMethylCellulose kanye ne-KP-08/KZ-04 enezinga le-alcohollysis elingu-68% -75% ingcono futhi inenzuzo ekubambeni i-resin kanye nokumuncwa kwama-plasticizer.
Isikhathi sokuthunyelwe: Ephreli-01-2022