Hydroxypropyl methylcellulose (HPMC)he non-ionic cellulose ether i hoʻohana nui ʻia i nā mea kūkulu hale, lāʻau lapaʻau, meaʻai, mea hoʻonaninani a me nā ʻoihana ʻē aʻe. ʻO nā hōʻailona ʻenehana nui o HPMC e pili ana i nā waiwai kino a me nā kemika, solubility, viscosity, degree of substitution, etc.
1. Nā hiʻohiʻona a me nāʻano kumu
ʻO ka HPMC ka pauka keʻokeʻo a i ʻole keʻokeʻo keʻokeʻo, ʻono ʻole, ʻono ʻole, ʻona ʻole, me ka hoʻoheheʻe wai maikaʻi a paʻa. Hiki iā ia ke hoʻopuehu koke a hoʻoheheʻe ʻia i loko o ka wai anuanu e hana i kahi hopena colloidal māmā a liʻiliʻi paha, a ʻaʻohe hiki ke hoʻoheheʻe ʻia i nā mea hoʻoheheʻe organik.
2. ʻO ka ʻili
ʻO Viscosity kekahi o nā hōʻailona ʻenehana koʻikoʻi o HPMC, e hoʻoholo ana i ka hana o AnxinCel®HPMC i nā noi like ʻole. ʻO ka viscosity o HPMC ka mea maʻamau e ana ma ke ʻano he 2% aqueous solution ma 20 ° C, a ʻo ka laulā viscosity maʻamau mai 5 mPa·s a 200,000 mPa·s. ʻO ke kiʻekiʻe o ka viscosity, ʻoi aku ka ikaika o ka hopena mānoanoa o ka hopena 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 ke koho ʻia ka māka viscosity kūpono e like me nā pono kikoʻī.
3. Methoxy a me Hydroxypropoxy maʻiʻo
Hoʻoholo nui ʻia nā waiwai kemika o HPMC e kona methoxy (–OCH₃) a me ka hydroxypropoxy (–OCH₂CHOHCH₃) degere hoʻololi. Hōʻike ka HPMC me nā degere hoʻololi ʻokoʻa i ka solubility ʻokoʻa, ka hana ʻili a me ka mahana gelation.
Methoxy Content: ʻO ka maʻamau ma waena o 19.0% a me 30.0%.
Hydroxypropoxy Content: ʻO ka maʻamau ma waena o 4.0% a me 12.0%.
4. Māmā
ʻO ka maʻamau o ka HPMC e hoʻomaluʻia ma ≤5.0%. E pili ana ka makū kiʻekiʻe i ke kūpaʻa a me ka hoʻohana ʻana i ka hopena o ka huahana.
5. Lehu maʻiʻo
ʻO ka lehu ke koena ma hope o ka puhi ʻia ʻana o ka HPMC, ʻoi aku ka nui o nā paʻakai inorganic i hoʻohana ʻia i ke kaʻina hana. Hoʻomalu pinepine ʻia ka ʻike lehu ma ≤1.0%. Hiki ke hoʻopili i ka ʻike lehu kiʻekiʻe a me ka maʻemaʻe o HPMC.
6. Solubility a me ka maopopo
Hiki i ka HPMC ke ho'ohehe'e wai maika'i a hiki ke ho'ohehe'e koke i ka wai anuanu e hana i ka hopena colloidal like. ʻO ka ʻike maopopo o ka hopena e pili ana i ka maʻemaʻe o HPMC a me kāna kaʻina hoʻopau. ʻO ka hoʻonā HPMC kiʻekiʻe ka mea maʻamau a i ʻole ka waiū liʻiliʻi.
7. Gel Mahana
Hana ʻia ka ʻoluʻolu wai HPMC i gel ma kahi mahana. ʻO ka mahana o ka gel ka mea maʻamau ma waena o 50 a 90 ° C, ma muli o ka ʻike o ka methoxy a me ka hydroxypropoxy. ʻO ka HPMC me ka haʻahaʻa methoxy haʻahaʻa he kiʻekiʻe ka mahana gel, ʻoiai ʻo HPMC me ka hydroxypropoxy kiʻekiʻe ka haʻahaʻa haʻahaʻa.
8. pH waiwai
ʻO ka pH waiwai o AnxinCel®HPMC aqueous solution ma waena o 5.0 a me 8.0, ʻo ia ka neutral a i ʻole ka alkaline palupalu a kūpono no nā ʻano kaiapuni noi.
9. Ka nui o ka ʻāpana
Hōʻike ʻia ka maikaʻi o ka HPMC ma ke ʻano he pākēneka e hele ana ma kahi pale 80-mesh a i ʻole 100-mesh. Pono ʻia ʻo ≥98% e hele i kahi pale 80-mesh e hōʻoia i ka maikaʻi o ka dispersibility a me ka solubility ke hoʻohana ʻia.
10. Maʻiʻo metala kaumaha
Pono nā mea metala kaumaha (e like me ke kēpau a me ka arsenic) o HPMC e hoʻokō i nā kūlana ʻoihana kūpono. ʻO ka maʻamau, ʻo ≤10 ppm ka ʻike alakaʻi a ʻo ka ʻike arsenic he ≤3 ppm. ʻOi aku i ka meaʻai a me ka lāʻau lapaʻau HPMC, ʻoi aku ka paʻakikī o nā koi no ka ʻike metala kaumaha.
11. Nā hōʻailona microbial
No ka lāʻau lapaʻau a me ka papa meaʻai ʻo AnxinCel®HPMC, pono e hoʻomalu ʻia ka ʻino microbial, me ka helu ʻana o ka colony, mold, yeast, E. coli, etc., koi maʻamau:
ʻO ka helu o nā kolone ≤1000 CFU/g
ʻO ka nui o ka mold a me ka helu hū ≤100 CFU / g
ʻAʻole pono e ʻike ʻia ʻo E. coli, Salmonella, etc
12. Nā wahi noi nui
Hoʻohana nui ʻia ka HPMC i nā ʻoihana he nui ma muli o kona mānoanoa, paʻa wai, hana kiʻiʻoniʻoni, lubrication, emulsification a me nā waiwai ʻē aʻe:
ʻOihana hana: Ma ke ʻano he mea mānoanoa a me ka mālama ʻana i ka wai i loko o ka momi sima, ka pauka putty, ka ʻili tile, a me ka uhi ʻana i ka wai e hoʻomaikaʻi ai i ka hana hana.
ʻOihana lāʻau lapaʻau: Hoʻohana ʻia ma ke ʻano he mea hoʻopili, hoʻokuʻu mau ʻia, a me ka ʻili capsule no nā papa lāʻau.
ʻOihana meaʻai: hoʻohana ʻia e like me ka emulsifier, stabilizer, thickener, hoʻohana ʻia i ka jelly, nā mea inu, nā mea i hoʻomoʻa ʻia, etc.
ʻO ka ʻoihana kemika o kēlā me kēia lā: hoʻohana ʻia e like me ka mānoanoa a me ka emulsifier stabilizer i nā huahana mālama ʻili, nā mea holoi, a me nā shampoos.
Nā hōʻailona ʻenehana oHPMCe komo i ka viscosity, degere o ke pani (hydrolyzed group content), moisture, ash content, pH value, gel temperature, fineness, heavy metal content, etc. ʻO kēia mau hōʻailona e hoʻoholo i kāna hana noi ma nā kahua like ʻole. Ke koho ʻana i ka 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: Feb-11-2025