Zinthu zopangidwa ndi Hydroxypropyl Methyl Cellulose zimagwiritsidwa ntchito kwambiri m'dera la polymerization ya vinyl chloride ku China. Mu polymerization ya vinyl chloride yoyimitsidwa, dongosolo logawanika limakhudza mwachindunji zinthuzo, utomoni wa PVC, komanso mtundu wa kukonza kwake ndi zinthu zake. HydroxypropylMethylCellulose imathandiza kukonza kukhazikika kwa kutentha kwa utomoni ndikuwongolera kufalikira kwa tinthu tating'onoting'ono..Utomoni wa PVC wopangidwa kuchokera ku HydroxypropylMethylCellulose wapamwamba kwambiri sungotsimikizira kuti ukugwirizana ndi miyezo yapadziko lonse lapansi, komanso ukhoza kukhala ndi mawonekedwe abwino, mawonekedwe abwino kwambiri a tinthu tating'onoting'ono komanso mawonekedwe abwino kwambiri a rheological.
Pakupanga ma resini opangidwa, monga polyvinyl chloride, polyvinylidene chloride, ndi ma copolymer ena, suspension polymerization ndiye omwe amagwiritsidwa ntchito kwambiri ndipo ayenera kukhala ma monomers osasinthasintha a hydrophobic omwe amapachikidwa m'madzi. Monga ma polima osungunuka m'madzi, HydroxypropylMethylCellulose product ili ndi ntchito yabwino kwambiri pamwamba ndipo imagwira ntchito ngati othandizira oteteza colloidal. HydroxypropylMethylCellulose imatha kuletsa bwino tinthu ta polymeric kuti tisapange ndi kusonkhana. Kuphatikiza apo, ngakhale HydroxypropylMethylCellulose ndi polima wosungunuka m'madzi, imatha kusungunuka pang'ono mu ma monomers a hydrophobic ndipo imatha kuwonjezera porosity ya monomer popanga tinthu ta polymeric.
Kuphatikiza apo, kafukufuku wasonyeza kuti popanga PVC, mabizinesi osiyanasiyana amagwiritsa ntchito njira zosiyanasiyana zogawanika, kotero mawonekedwe akunja a PVC opangidwa nawonso ndi osiyana, motero HydroxypropylMethylCellulose imatha kukhudza momwe ma resin a PVC amagwirira ntchito. Mu dongosolo la zinthu zogawanika, utomoni wa PVC wopangidwa kuchokera ku zinthu zogawanika za polyvinyl alcohol (PVA) zomwe zimakhala ndi alcohol ndi polymerization degrees zosiyanasiyana komanso hydroxypropyl methyl cellulose (HPMC) zitha kukhala ndi zotsatira zosiyana pa momwe zinthu zimagwirira ntchito. Mayeso awonetsa kuti mankhwala a HydroxypropylMethylCellulose ndi KP-08/KZ-04 omwe ali ndi alcoholization degree ya 68% -75% ndi abwino komanso opindulitsa pakubowola kwa utomoni ndi kuyamwa kwa ma plasticizer.
Nthawi yotumizira: Epulo-01-2022