ʻO nā huahana Hydroxypropyl Methyl Cellulose ka mea i hoʻohana nui ʻia ma kahi o ka polymerization suspension o vinyl chloride ma Kina. I ka polymerization suspension o vinyl chloride, loaʻa i ka ʻōnaehana hoʻopuehu kahi hopena pololei i ka huahana, PVC resin, a ma ke ʻano o kāna hana ʻana a me nā huahana. Kōkua ʻo HydroxypropylMethylCellulose i ka hoʻomaikaʻi ʻana i ke kūpaʻa wela o ka resin a kāohi i ka hoʻolaha nui o ka ʻāpana..ʻO ka resin PVC i hana ʻia mai ka HydroxypropylMethylCellulose kiʻekiʻe kiʻekiʻe ʻaʻole hiki ke hōʻoia i ka laina hana me nā kūlana honua, akā hiki ke loaʻa i nā waiwai kino maikaʻi, nā waiwai ʻāpana maikaʻi loa a me ke ʻano rheological hoʻoheheʻe maikaʻi loa.
I ka hana ʻana o nā resins synthetic, e like me ka polyvinyl chloride, polyvinylidene chloride, a me nā copolymers ʻē aʻe, ʻo ka polymerization suspension ka mea i hoʻohana pinepine ʻia a pono e lilo i mau monomers hydrophobic invariant i hoʻokuʻu ʻia i loko o ka wai. Ma ke ʻano he polymers wai-soluble, loaʻa i ka huahana HydroxypropylMethylCellulose ka hana ʻili maikaʻi loa a hana ma ke ʻano he mau mea pale colloidal. Hiki i ka HydroxypropylMethylCellulose ke pale pono i nā ʻāpana polymeric mai ka hana ʻana a me ka agglomeration. Eia kekahi, ʻoiai ʻo HydroxypropylMethylCellulose he polymer wai-soluble, hiki ke hoʻoheheʻe iki ʻia i loko o nā monomers hydrophobic a hiki ke hoʻonui i ka monomer porosity no ka hana ʻana o nā ʻāpana polymeric.
Eia kekahi, ua hōʻike nā haʻawina i ke kaʻina hana o PVC, hoʻohana nā ʻoihana like ʻole i ka ʻōnaehana hoʻopuehu like ʻole, no laila ʻokoʻa nā waiwai uhi waho o PVC i hana ʻia, a no laila hiki i ka HydroxypropylMethylCellulose ke hoʻopilikia i ka hana hana o nā resins PVC. I loko o ka ʻōnaehana mea hoʻopuehu hui, ʻo ka resin PVC hoʻokuʻu i hoʻomākaukau ʻia mai ka mea hoʻopuehu hui o ka polyvinyl alcohol (PVA) me nā ʻano alcoholysis a me nā kekelē polymerization like ʻole a me ka hydroxypropyl methyl cellulose (HPMC) he mau hopena like ʻole paha i ka hana hana. Ua hōʻike nā hoʻokolohua he ʻoi aku ka maikaʻi o ka hui o HydroxypropylMethylCellulose a me KP-08/KZ-04 me ke kekelē alcoholysis o 68% -75% a he pono hoʻi no ka porosity o ka resin a me ka omo ʻana o nā plasticizers.
Ka manawa hoʻouna: ʻApelila-01-2022