Hydroxypropyl Methylcellulose monga zinthu zolekanitsa, zinthu zomwe zapezeka zimakhala ndi tinthu tosanjikizana komanso tosanjikizana, tomwe timaoneka ngati tambirimbiri komanso timachita bwino kwambiri pokonza. Komabe, kugwiritsa ntchito Hydroxypropyl Methylcellulose yokha kungathandize kuti resin isasinthe bwino. Kugwira ntchito kwa resin konsekonse n’koipa. Kugwiritsa ntchito hydroxypropyl methylcellulose pamodzi ndi kuchuluka kwa mowa wa polyvinyl alcohol kungapangitse kuti zinthuzo zigwire bwino ntchito, khalidwe likhale losavuta kuwongolera komanso nthawi yomweyo kumachepetsa mtengo. Chotulutsira ndiye chinthu chachikulu chomwe chimakhudza mawonekedwe a tinthu ta polyvinyl chloride resin. Kuchepa kwa mphamvu ya madzi a zinthu zotulutsira madzi komanso kupsinjika kwa interfacial ndi Vinyl chloride monomer, kumachepa madontho a VCM. Ndipo motero tinthu ta PVC resin tidzakhala tating'onoting'ono. Mphamvu yoteteza ya chotulutsira madzi ikakhala yolimba, tinthu ta PVC resin tomwe tapezeka tidzakhala pafupi kwambiri ndipo porosity idzakhala yaying'ono. Ndipo kuphatikizika kwa ma granular kumakhala kovuta kwambiri, kotero ndikosavuta kupanga ma resin.
Mwachitsanzo, mu dongosolo logawanitsa zinthu la PVA ndi HPC, kuchuluka kwa PVA yoledzeretsa kumakhala kwakukulu, mphamvu ya pamwamba ya yankho lamadzi imakhala yayikulu ndipo mphamvu yoteteza imakhala yolimba, pomwe kuchuluka kwa hydroxypropyl methylcellulose kumakhala ndi mphamvu yabwino yogawanitsa. Chifukwa chake, kugwiritsa ntchito PVA yokhala ndi digiri yapamwamba ya alcoholism ngati chinthu chachikulu.
chotulutsira madzi, ndi kuphatikiza
kuchuluka kwina kwa hydroxypropyl methylcellulose
Monga chotulutsira madzi cha suspension polymerization, n'kosavuta kukonzekera utomoni wa PVC womwe ungakwaniritse zofunikira za mawonekedwe a tinthu. Mwachitsanzo, mu dongosolo logawanitsa madzi la PVA ndi HPC, kuchuluka kwa PVA komwe kumakhala koledzeretsa, mphamvu ya pamwamba pa madzi imakhala yayikulu ndipo mphamvu yoteteza imakhala yolimba, pomwe kuchuluka kwa hydroxypropyl methylcellulose kumakhala ndi mphamvu yabwino yogawanitsa madzi.
Nthawi yotumizira: Mar-17-2022