Ka nānā 'ana i ka hana ho'opa'a wai o ka hydroxypropyl methylcellulose (HPMC)

hoʻolauna:

ʻO Hydroxypropylmethylcellulose (HPMC) kahi pūhui multifunctional i hoʻohana nui ʻia i nā ʻoihana ma muli o kāna mau waiwai pono.He mea ia o ka cellulose, i loaʻa ma ka hoʻololi kemika cellulose me propylene oxide a me methyl chloride.Hoʻohana nui ʻia ka HPMC i ka lāʻau lapaʻau, meaʻai, kūkulu hale a me nā ʻoihana hoʻonaninani ma muli o kāna mau waiwai paʻa wai maikaʻi.Hāʻawi kēia pepa i kahi loiloi hohonu o ka hana mālama wai o HPMC.

Hana paʻa wai o HPMC:

ʻO nā waiwai paʻa wai o HPMC kekahi o nā kumu koʻikoʻi no kona hoʻohana nui ʻana i nā ʻoihana.Loaʻa i ka HPMC ka mana mālama wai ma muli o kona ʻano hydrophilic.Hoʻopili ʻo ia i ka wai a pehu i nā manawa he nui i kona nui mua, e lilo ia i mea mālama wai maikaʻi loa.ʻO nā waiwai paʻa wai o HPMC e hilinaʻi ʻia ma nā kumu he nui e like me ke degere o ka hoʻololi ʻana, ka viscosity o ka solution HPMC, a me ke ʻano o ka solvent i hoʻohana ʻia.

Degere o ka pani ʻana:

ʻO ke degere o ka hoʻololi ʻana (DS) o HPMC kahi mea nui e pili ana i kāna hana mālama wai.ʻO ka DS o HPMC e pili ana i ka helu o nā hui hydroxyl i pani ʻia e ka hydroxypropyl a me nā pūʻulu methyl i loko o ka mole cellulose.ʻO ka HPMC me kahi kiʻekiʻe o ka hoʻololi ʻana he ʻoi aku ka nui o ka mālama wai ma mua o ka HPMC me kahi haʻahaʻa haʻahaʻa o ka hoʻololi.ʻO ka DS kiʻekiʻe o HPMC e hoʻonui i ka hydrophilicity o ka mole, e hopena i ka paʻa wai maikaʻi.

Viscosity o ka HPMC solution:

ʻO ka viscosity o ka HPMC solution kekahi mea e pili ana i ka hana paʻa wai o HPMC.Hoʻonui ka viscosity o ka hoʻonā HPMC me ka piʻi ʻana o ka ʻike HPMC i loko o ka solvent.Ma muli o ka nui o nā molekala HPMC i loko o ka solvent, ʻoi aku ka kiʻekiʻe o ka viscosity o ka hopena HPMC, ʻoi aku ka maikaʻi o ka paʻa wai.Hoʻokumu ʻia nā haʻina HPMC viscosity kiʻekiʻe i kahi ʻano gel-like e pahele ai i nā molekole wai a pale iā lākou mai ka hoʻoheheʻe ʻana.

Hoʻohana ʻia ke ʻano solvent:

ʻO ke ʻano o ka mea hoʻoheheʻe i hoʻohana ʻia no ka hoʻomākaukau ʻana i ka hopena HPMC hiki ke hoʻopili i kāna mau waiwai paʻa wai.Hiki ke hoʻoheheʻe ʻia ka HPMC i ka wai a me nā mea hoʻoheheʻe kūlohelohe like ʻole, e like me nā waiʻona, esters, a me nā ketones.Hiki i ka mea ho'ohehe'e i ho'ohana 'ia no ka ho'omākaukau 'ana i ka ho'onā HPMC ke ho'opilikia i ka hana pehu o ka mole.ʻOi aku ka pehu o ka HPMC i ka wai a ʻoi aku ka nui o ka wai ma mua o ka HPMC i nā mea hoʻoheheʻe organik.Ke hoʻohālikelike ʻia me nā mea hoʻoheheʻe organik, ʻoi aku ka maikaʻi o ka HPMC i nā waiwai paʻa wai ma nā ʻano wai.

Hoʻohana ʻia ka HPMC ma nā ʻoihana like ʻole:

Ma muli o kāna mau waiwai paʻa wai maikaʻi, hoʻohana nui ʻia ka HPMC i nā ʻoihana e like me ka lāʻau lapaʻau, ka meaʻai, ke kūkulu ʻana a me nā mea hoʻonaninani.

ʻoihana lāʻau lapaʻau:

I ka ʻoihana lāʻau lapaʻau, hoʻohana pinepine ʻia ka HPMC ma ke ʻano he mea hoʻopaʻa, disintegrant a me ka mea hoʻopili.Hoʻohana ʻia ia ma ke ʻano he mea paʻa i ka hoʻomākaukau ʻana i ka papa e hoʻopaʻa pū i nā mea kanu.Ma ke ʻano he disintegrant, kōkua ʻo HPMC i ka wāwahi ʻana i ka papa i nā ʻāpana liʻiliʻi i loko o ka ʻōpū, e hoʻomaikaʻi ai i ka lawe ʻana i ka lāʻau.Hoʻohana ʻia ka HPMC ma ke ʻano he uhi no ka pale ʻana i ka lāʻau mai ka makū a me ka hoʻokuʻu ʻana i ka lāʻau.

ʻoihana meaʻai:

I ka ʻoihana meaʻai, hoʻohana ʻia ʻo HPMC ma ke ʻano he emulsifier, stabilizer a me ka mānoanoa.Hoʻohana ʻia ia e emulsify i nā ʻaila a me nā wai i hoʻokumu ʻia i ka wai, hoʻopaʻa i nā meaʻai, a me ka mānoanoa o nā ʻuala a me nā gravies.Hoʻohana ʻia ʻo HPMC ma ke ʻano he mea hoʻopiha e hoʻohui i ka nui i nā meaʻai.

ʻOihana kūkulu hale:

I ka ʻoihana kūkulu, hoʻohana maʻamau ʻia ka HPMC i nā mea i hoʻokumu ʻia i ka sima e like me ka mortar a me ke kaila.Hoʻohana ʻia ia ma ke ʻano he mea mālama wai e pale ai i ka hoʻoheheʻe ʻana o ka wai i loko o ka hui sima.Hiki nō hoʻi i ka HPMC ke hoʻomaikaʻi i ka hana o ka hui ʻana o ka sima a hoʻemi i ka haki ʻana o ka mea.

ʻoihana hoʻonaninani:

I ka ʻoihana hoʻonaninani, hoʻohana ʻia ʻo HPMC ma ke ʻano he mānoanoa, emulsifier a me ka mea hoʻonaninani.Hoʻohana ʻia ia e mānoanoa i nā lotions a me nā creams, emulsify i ka aila a me nā mea hoʻohui wai, a me ka hoʻoponopono ʻana i ka lauoho.

i ka hopena:

I ka hopena, ʻo ka waiwai paʻa wai o HPMC kekahi o kāna mau waiwai nui a pono.Loaʻa i ka HPMC ka mana paʻa wai kiʻekiʻe ma muli o kona ʻano hydrophilic, hiki iā ia ke komo a mālama i ka wai a pale aku i ka evaporating.ʻO ke kiʻekiʻe o ka hoʻololi ʻana, ka viscosity solution a me ke ʻano o ka solvent i hoʻohana ʻia he mau mea nui e pili ana i ka hana paʻa wai o HPMC.Hoʻohana nui ʻia ka HPMC i nā ʻoihana like ʻole e like me ka lāʻau lapaʻau, ka meaʻai, ke kūkulu ʻana a me nā mea hoʻonaninani ma muli o kāna mau waiwai paʻa wai.