He aha nā mea maka o HPMC?

ʻO ka Hydroxypropylmethylcellulose (HPMC) he polymer multifunctional i loaʻa mai ka cellulose i hoʻohana nui ʻia i nā ʻoihana like ʻole ma muli o kāna mau waiwai kūʻokoʻa. Hoʻopili ʻia ka pūhui ma o ke ʻano o nā hoʻololi kemika i ka cellulose, kahi polymer kūlohelohe i loaʻa i nā paia o nā mea kanu.

mea maka:
Puna: ʻO ka cellulose ka mea nui o ka HPMC, he nui i ke ʻano a lawe ʻia mai nā mea kanu. ʻO ka pulp lāʻau a me ka pulupulu linters ka mea maʻamau o ka cellulose.

Hoʻokaʻawale: ʻO ke kaʻina hoʻoneʻe e pili ana i ka wāwahi ʻana i nā paia o nā mea kanu a me ka hoʻokaʻawale ʻana i nā fiber cellulose. Hiki ke hoʻohana ʻia nā ʻano kemika a me nā ʻano mechanical no kēia kumu.

Propylene oxide:
Puna: ʻO ka propylene oxide kahi mea hoʻohuihui mea ola i loaʻa mai nā kumu petrochemical.
Hana: Hoʻohana ʻia ka propylene oxide e hoʻokomo i nā pūʻulu hydroxypropyl i loko o nā molekole cellulose i ka wā o ke kaʻina hana synthesis, hoʻonui i ka hoʻoheheʻe wai a hoʻololi i nā waiwai kino o ka HPMC i hopena.

Methyl chloride:
Puna: ʻO ka Methyl chloride kahi hydrocarbon chlorinated hiki ke hoʻohui ʻia mai ka methanol.
Hana: Hoʻohana ʻia ka Methyl chloride e hoʻolauna i nā pūʻulu methyl i loko o nā molekole cellulose, e kōkua ana i ka hydrophobicity holoʻokoʻa o HPMC.

Sodium hydroxide (NaOH):
Puna: ʻO ka sodium hydroxide, ʻike ʻia hoʻi ʻo caustic soda, kahi kumu ikaika a loaʻa i ke kālepa.
Hana: Hoʻohana ʻia ʻo NaOH e hoʻololi i ka hopena a hoʻoponopono i ka waiwai pH o ka hui ʻana i ka wā o ke kaʻina hana synthesis.

Hoʻohui:
Hoʻokomo ʻia ka synthesis o HPMC i kekahi mau ʻanuʻu, a hiki ke hōʻuluʻulu ʻia ke ʻano pane e like me kēia:

Alkalizing:
Hana ʻia ka cellulose me ka sodium hydroxide e hana i ka cellulose alkaline.
Hoʻopili ʻia ka cellulose alkali me ka propylene oxide e hoʻokomo i nā hui hydroxypropyl.

Methylation:
Hoʻopili hou ʻia ka cellulose hydroxypropylated me ka methyl chloride e hoʻolauna i nā hui methyl.
Hāʻawi kēia ʻanuʻu i ka polymer i ke kūpaʻa a me ka hydrophobicity.

Neutralization a me kāna kānana:
Ua hoʻokuʻu ʻia ka hui ʻana no ka wehe ʻana i ke kumu.
Hana ʻia ka kānana e hoʻokaʻawale i ka cellulose i hoʻololi ʻia.

Holoi a maloʻo:
Holoi ʻia ka huahana i hoʻokaʻawale ʻia a hoʻomaloʻo ʻia no ka loaʻa ʻana o ka hydroxypropyl methylcellulose i loko o ka pauka a i ʻole ke ʻano granular.

Ka hikiwawe o ka HPMC:
Hiki ke hoʻololi ʻia ka HPMC e like me ke kiʻekiʻe o ka hoʻololi ʻana o nā hui hydroxypropyl a me methyl.

Hiki ke hana kiʻiʻoniʻoni:
Hoʻokumu ʻo HPMC i nā kiʻiʻoniʻoni maʻalahi a maopopo i kūpono no nā noi ma ka ʻoihana lāʻau a me nā ʻoihana meaʻai.

viscosity:
Hiki ke mālama ʻia ka viscosity o ka hopena HPMC a hoʻohana pinepine ʻia e like me ka mānoanoa a me ka gelling agent i nā ʻano hana like ʻole.

ʻO ka wai wela:
Hōʻike kekahi mau māka o ka HPMC i nā waiwai thermogelling, e hana ana i gel ke hoʻomehana ʻia a hoʻi hou i kahi hoʻonā i ka wā maʻalili.

Hana i luna:
Hiki ke hoʻohana ʻia ka HPMC ma ke ʻano he surfactant, a ua hoʻopili ʻia kāna hana ma ke ʻano o ka hoʻololi ʻana.

ʻO nā lāʻau i hoʻohana ʻia o HPMC:
Hoʻohana nui ʻia ʻo HPMC i nā ʻano lāʻau lapaʻau e like me nā binders, disintegrants, a me nā mea hoʻokuʻu hoʻokuʻu ʻia i nā papa a me nā capsules.

ʻOihana kūkulu hale:
Ma ka ʻoihana kūkulu, hoʻohana ʻia ʻo HPMC ma ke ʻano he mānoanoa i nā huahana sima e like me nā morta a me nā mea hoʻopili tile.

ʻoihana meaʻai:
Hoʻohana ʻia ʻo HPMC i ka ʻoihana meaʻai ma ke ʻano he mānoanoa, emulsifier a me ka stabilizer i nā ʻano huahana like ʻole, me nā mea ʻono, nā mea ʻono a me ka ice cream.

Nā huahana mālama pilikino:
I nā mea hoʻonaninani a me nā huahana mālama pilikino, hoʻohana ʻia ʻo HPMC i nā ʻano hana e like me ka creams, lotions a me nā shampoos ma muli o kona mānoanoa a me ka hoʻopaʻa ʻana i nā waiwai.

Nā pena a me nā pena:
Hoʻohui ʻia ka HPMC i nā pena a me nā uhi e hoʻomalu i ka viscosity, hoʻomaikaʻi i nā waiwai noi a hoʻomaikaʻi i nā waiwai hana kiʻiʻoniʻoni.

Nā Pane Ophthalmic:
Hoʻohana ʻia ʻo HPMC i nā kulu maka a me nā waimaka artificial ma muli o kona biocompatibility a me nā waiwai mucoadhesive.

i ka hopena:
ʻO ka Hydroxypropylmethylcellulose (HPMC) he polymer kupaianaha i hoʻohui ʻia mai ka cellulose waiwai hou. ʻO kāna mau waiwai multifunctional a me ka laulā o nā noi e lilo ia i mea waiwai nui i nā ʻoihana like ʻole, mai nā lāʻau lapaʻau a hiki i ke kūkulu ʻana a me ka meaʻai. Ma ke koho pono ʻana i nā mea maka a me ka mālama ʻana i nā ʻāpana synthesis, hiki ke hana ʻia nā HPMC me nā waiwai maʻamau e hoʻokō i nā pono kikoʻī o nā noi like ʻole. Ke hoʻomau nei ka ʻenehana a me nā pono, e noho mau ʻo HPMC i mea pāʻani nui i ka hana hou a me ka hoʻomohala ʻana i nā huahana hoʻomau ma waena o nā ʻoihana.