ʻO ka Hydroxypropyl methylcellulose (HPMC)he ʻetera cellulose non-ionic i hoʻohana nui ʻia i nā mea kūkulu hale, nā lāʻau lapaʻau, ka meaʻai, nā mea hoʻonani a me nā ʻoihana ʻē aʻe. ʻO nā ʻōkuhi loea nui o HPMC e pili ana i nā waiwai kino a me nā kemika, ka solubility, ka viscosity, ke kekelē o ka pani ʻana, a pēlā aku.
1. ʻAno a me nā ʻano kumu
ʻO ka HPMC he pauka keʻokeʻo a keʻokeʻo paha, ʻaʻohe ʻala, ʻono ʻole, ʻaʻohe ʻawahia, me ka solubility maikaʻi a me ke kūpaʻa i ka wai. Hiki iā ia ke hoʻopuehu koke a hoʻoheheʻe i ka wai anuanu e hana i kahi hopena colloidal moakaka a ʻūlū iki paha, a he solubility haʻahaʻa i nā mea hoʻoheheʻe organik.
2. Ka mānoanoa
ʻO ka viscosity kekahi o nā ʻōkuhi loea koʻikoʻi o HPMC, ka mea e hoʻoholo ai i ka hana o AnxinCel®HPMC ma nā noi like ʻole. Hoʻohana pinepine ʻia ka viscosity o HPMC ma ke ʻano he 2% wai hoʻonā ma 20°C, a ʻo ka pae viscosity maʻamau mai 5 mPa·s a i 200,000 mPa·s. ʻO ke kiʻekiʻe o ka viscosity, ʻoi aku ka ikaika o ka hopena mānoanoa o ka hoʻonā a ʻoi aku ka maikaʻi o ka rheology. Ke hoʻohana ʻia i nā ʻoihana e like me ke kūkulu ʻana a me ka lāʻau lapaʻau, pono e koho ʻia ka papa viscosity kūpono e like me nā pono kikoʻī.
3. ʻO ka ʻike o Methoxy a me Hydroxypropoxy
Hoʻoholo nui ʻia nā waiwai kemika o HPMC e kona mau kekelē pani methoxy (–OCH₃) a me hydroxypropoxy (–OCH₂CHOHCH₃). Hōʻike ka HPMC me nā kekelē pani like ʻole i ka solubility like ʻole, ka hana ʻili a me ka mahana gelation.
ʻO ka nui o ka Methoxy: ʻO ka maʻamau ma waena o 19.0% a me 30.0%.
Ka nui o ka Hydroxypropoxy: ʻO ka maʻamau ma waena o 4.0% a me 12.0%.
4. Ka nui o ka wai
ʻO ka maʻamau, ʻo ka nui o ka makū o ka HPMC e kāohi ʻia ma ≤5.0%. ʻO ka nui o ka makū e hoʻopilikia i ke kūpaʻa a me ka hopena o ka hoʻohana ʻana o ka huahana.
5. Ka nui o ka lehu
ʻO ka lehu ke koena ma hope o ke puhi ʻia ʻana o ka HPMC, ʻo ia hoʻi mai nā paʻakai inorganic i hoʻohana ʻia i ke kaʻina hana. Hoʻomalu pinepine ʻia ka nui o ka lehu ma ≤1.0%. Hiki i ka nui o ka lehu ke hoʻopilikia i ka moakaka a me ka maʻemaʻe o ka HPMC.
6. Ka hoʻoheheʻe ʻia a me ka moakāka
He maikaʻi ka hoʻoheheʻe ʻana o ka HPMC i ka wai a hiki ke hoʻoheheʻe koke i ka wai anuanu e hana i kahi hopena colloidal like. ʻO ka moakāka o ka hopena e pili ana i ka maʻemaʻe o HPMC a me kāna kaʻina hana hoʻoheheʻe. ʻO ka hopena HPMC kiʻekiʻe he moakāka a waiū iki paha.
7. Mahana Gel
E hoʻokumu ka wai HPMC i kahi gel ma kahi mahana. ʻO kona mahana gel ma waena o 50 a me 90°C, ma muli o ka nui o ka methoxy a me ka hydroxypropoxy. ʻOi aku ka mahana gel o ka HPMC me ka haʻahaʻa o ka methoxy, ʻoiai ʻo ka HPMC me ka nui o ka hydroxypropoxy he haʻahaʻa ka mahana gel.
8. ka waiwai pH
ʻO ka waiwai pH o ka hopena wai AnxinCel®HPMC ma waena o 5.0 a me 8.0, he kūlike ʻole a nāwaliwali paha ka alkaline a kūpono no nā ʻano noi like ʻole.
9. Ka nui o ka ʻāpana
ʻO ka maikaʻi o ka HPMC e hōʻike pinepine ʻia ma ke ʻano he pakeneka e hele ana ma kahi pale 80-mesh a i ʻole 100-mesh. ʻO ka maʻamau, koi ʻia ʻo ≥98% e hele ma kahi pale 80-mesh e hōʻoia i kona dispersibility maikaʻi a me ka solubility i ka wā e hoʻohana ʻia ai.
10. ʻO ka nui o ka metala kaumaha
Pono ka nui o nā metala kaumaha (e like me ke kēpau a me ka arsenic) o HPMC e kūlike me nā kūlana ʻoihana pili. ʻO ka maʻamau, ʻo ka nui o ke kēpau he ≤10 ppm a ʻo ka nui o ka arsenic he ≤3 ppm. ʻOi aku ka paʻakikī o nā koi no ka nui o nā metala kaumaha ma HPMC, ʻoi aku ka paʻakikī o ia mau koi.
11. Nā hōʻailona microbial
No ka AnxinCel®HPMC lāʻau lapaʻau a me ka meaʻai, pono e kāohi ʻia ka haumia microbial, me ka helu ʻana o nā kolone holoʻokoʻa, ka ʻōpala, ka hū, E. coli, a me nā mea ʻē aʻe, e koi pinepine ana:
Ka helu ʻana o nā kolone he ≤1000 CFU/g
Ka huina o ka ʻōpala a me ka hū ≤100 CFU/g
ʻAʻole pono e ʻike ʻia ʻo E. coli, Salmonella, a me nā mea ʻē aʻe
12. Nā wahi noi nui
Hoʻohana nui ʻia ʻo HPMC ma nā ʻoihana he nui ma muli o kona mānoanoa, ka paʻa ʻana o ka wai, ka hoʻokumu ʻana i nā kiʻiʻoniʻoni, ka lubrication, ka emulsification a me nā waiwai ʻē aʻe:
ʻOihana kūkulu hale: Ma ke ʻano he mea hoʻomānoanoa a me ka mea paʻa wai i loko o ka sima sima, ka pauka putty, ka hoʻopili tile, a me ka uhi wai ʻole e hoʻomaikaʻi i ka hana kūkulu hale.
ʻOihana lāʻau lapaʻau: Hoʻohana ʻia ma ke ʻano he mea hoʻopili, mea hoʻokuʻu mau ʻia, a me ka mea maka o ka pūpū capsule no nā papa lāʻau.
ʻOihana meaʻai: hoʻohana ʻia e like me ka emulsifier, stabilizer, thickener, hoʻohana ʻia i loko o ka jelly, nā mea inu, nā mea i hoʻomoʻa ʻia, a pēlā aku.
ʻOihana kemika o kēlā me kēia lā: hoʻohana ʻia e like me ka mea hoʻomānoanoa a me ka mea hoʻopaʻa emulsifier i nā huahana mālama ʻili, nā detergents, a me nā shampoos.
ʻO nā ʻōkuhi loea oHPMCe komo pū me ka viscosity, ke kekelē o ka pani ʻana (ʻike hui hydrolyzed), ka makū, ka ʻike lehu, ka waiwai pH, ka mahana gel, ka maikaʻi, ka ʻike metala kaumaha, a pēlā aku. Hoʻoholo kēia mau ʻōkuhi i kāna hana noi ma nā ʻano like ʻole. I ke koho ʻana iā HPMC, pono nā mea hoʻohana e hoʻoholo i nā kikoʻī kūpono e like me nā koi noi kikoʻī e hōʻoia i ka hopena hoʻohana maikaʻi loa.
Ka manawa hoʻouna: Pepeluali-11-2025