Nā mea e pili ana i ka hana ʻana o ka viscosity o Hydroxypropyl Methylcellulose

ʻO ka helu viscosity ohydroxypropyl methylcellulosehe papa kuhikuhi nui loa. ʻAʻole hōʻike ka viscosity i ka maʻemaʻe. ʻO ka viscosity o cellulose HPMC e pili ana i ke kaʻina hana. Pono nā wahi hoʻohana like ʻole e koho i ka HPMC cellulose me nā viscosities like ʻole, ʻaʻole ʻoi aku ka kiʻekiʻe o ka viscosity o cellulose HPMC, ʻoi aku ka maikaʻi! Ua pololei ka mea pono √

Hoʻoponopono Viscosity

1. ʻAʻole hiki i ka hydroxypropyl methylcellulose viscosity kiʻekiʻe ke hana i ka cellulose kiʻekiʻe loa ma ka hoʻoheheʻe ʻana a me ka hoʻololi ʻana me ka nitrogen. ʻO ka maʻamau, ʻaʻole hiki ke kāohi ʻia ka hana ʻana o ka cellulose kiʻekiʻe-viscosity ma Kina. Eia nō naʻe, inā hiki ke hoʻokomo ʻia kahi mea ana o ka oxygen i loko o ka ipu hao, hiki ke hoʻomalu ʻia ka hana ʻana o ka viscosity.

Hoʻohana i nā mea hana hui

2. Eia kekahi, e noʻonoʻo ana i ka wikiwiki o ka hoʻololi ʻana o ka nitrogen, a ma ka manawa like, he mea maʻalahi loa ka hana ʻana i nā huahana kiʻekiʻe-viscosity ʻaʻohe mea e pili ana i ka ea o ka ʻōnaehana. ʻOiaʻiʻo, koʻikoʻi ka degere o ka polymerization o ka pulupulu hoʻomaʻemaʻe. Inā ʻaʻole pono kēlā, e hana me ka hui hydrophobic. Aia nā ʻelele hui kūloko ma kēia ʻano. He aha ke ʻano o ka hui hui i koho ʻia he mana nui i ka hana o ka huahana hope.

Hydroxypropyl maʻiʻo

3. ʻO ke koena o ka oxygen i loko o ka reactor e alakaʻi i ka degradation o cellulose a me ka hoʻohaʻahaʻa ʻana i ke kaumaha mole, akā ua kaupalena ʻia ke koena oxygen. ʻAʻole paʻakikī ka hana ʻana i ka viscosity kiʻekiʻe i ka wā e hoʻopili hou ʻia nā molekala haʻihaʻi. Eia nō naʻe, pili pū ka nui o ka saturation wai i ka ʻike o ka hydroxypropyl. Makemake wale kekahi mau hale hana e hoʻemi i ke kumukūʻai a me ke kumukūʻai, a makemake ʻole e hoʻonui i ka ʻike o ka hydroxypropyl, no laila ʻaʻole hiki i ka maikaʻi ke hiki i ke kiʻekiʻe o nā huahana like ʻole.

nā kumu ʻē aʻe

4. ʻO ka nui o ka paʻa wai o ka huahana he pilina nui me ka hydroxypropyl, akā no ke kaʻina hana holoʻokoʻa holoʻokoʻa, ʻo ia hoʻi e hoʻoholo i kona kahe paʻa wai, ka hopena o ka alkalization, ka lakio o ka methyl chloride a me ka propylene oxide, a me ka neʻe ʻana o ka alkali. . A ʻo ka ratio o ka wai i ka pulupulu hoʻomaʻemaʻe e hoʻoholo i ka hana o ka huahana.