Hoʻolauna ʻia o Hydroxyethyl Methyl Cellulose HEMC

ʻIke Kumu oʻO ka Hydroxyethyl Methyl Cellulose

Inoa Kina: hydroxyethyl methyl cellulose
Inoa Pelekania: Hymetellose328
ʻO ka inoa kapakapa Kina: hydroxyethyl methyl cellulose; hydroxyethyl methyl cellulose; hydroxymethyl ethyl cellulose; 2-hydroxyethyl methyl ether cellulose
ʻO ka inoa Pelekane: Methylhydroxyethylcellulose; Cellulose; 2-hydroxyethyl methyl ether; HEMC; Tyopur MH[1]
Kemika: Hydroymethylmethylecellulose; Hydroxyethylmethylcellulose; Hydroxymethylethylcellulose.

Nā Molekala: C2H6O2 xCH4O x PhEur 2002 wehewehe i ka hydroxyethylmethylcellulose ma ke ʻano he O-methylated hapa, ʻo O-hydroxymethylated cellulose hapa. Hōʻike ʻia nā kikoʻī like ʻole ma ke ʻano o ka viscosity maopopo ma mPa s o kahi hopena wai 2% w/v ma 20°C.
Kaumaha Molekala: Ua wehewehe ʻo PhEur 2002 i ka hydroxyethylmethylcellulose ma ke ʻano he O-methylated hapa, ʻo O-hydroxymethylated cellulose hapa. Hōʻike ʻia nā kikoʻī like ʻole ma ke ʻano o ka viscosity maopopo ma mPa s o kahi hopena wai 2% w/v ma 20°C.

ʻO nā ʻano nui o ka hydroxyethyl methyl cellulose (HEMC) penei:

1. Solubility: hoʻoheheʻe ʻia i ka wai a me kekahi mau mea hoʻoheheʻe organik, hiki ke hoʻoheheʻe ʻia ʻo HEMC i ka wai anuanu, ʻo kona nui kiʻekiʻe loa e hoʻoholo wale ʻia e ka viscosity, ʻokoʻa ka solubility me ka viscosity, ʻo ka haʻahaʻa o ka viscosity, ʻoi aku ka nui o ka solubility.

2. Ke kū'ē ʻana i ka paʻakai: ʻO nā huahana HEMC he mau ethers cellulose non-ionic a ʻaʻole ia he polyelectrolytes, no laila i ke alo o nā paʻakai metala a i ʻole nā ​​electrolytes organik, ua paʻa loa lākou i nā hopena wai, akā ʻo ka hoʻohui nui ʻana o nā electrolytes hiki ke hana i ka gelation a me ka ua.

3. Hana ʻili: Ma muli o ka hana ʻili o ka hopena wai, hiki ke hoʻohana ʻia ma ke ʻano he mea pale colloid, emulsifier a me ka dispersant.

4. Gel wela: Ke hoʻomehana ʻia ka hopena wai o ka huahana HEMC i kahi mahana, lilo ia i opaque, gels, a hana i kahi precipitate, akā ke hoʻomaʻalili mau ʻia, hoʻi ia i ke kūlana hopena mua, a hana ʻia kēia gel a me ka precipitate. ʻO ka mahana e hilinaʻi nui ʻia i kā lākou lubricants, suspending aids, protective colloids, emulsifiers, etc.

5. ʻO ka inertness metabolic a me ka ʻala haʻahaʻa a me ka ʻala: Hoʻohana nui ʻia ʻo HEMC i ka meaʻai a me nā lāʻau lapaʻau no ka mea ʻaʻole ia i metabolized a he haʻahaʻa kona ʻala a me ka ʻala.

6. Antifungal: Loaʻa iā HEMC ka hiki ke antifungal maikaʻi a me ke kūpaʻa maikaʻi o ka viscosity i ka wā mālama lōʻihi.

7. Paʻa PH: ʻO ka mānoanoa oHEMCʻAʻole pilikia iki ka hopena wai o ka huahana e ka waikawa a i ʻole ka alkali, a he paʻa loa ka waiwai pH ma ka laulā o 3.0-11.0.

Hoʻohana: Hiki ke hoʻohana ʻia ka Hydroxyethyl methyl cellulose ma ke ʻano he mea pale colloid, emulsifier a me ka dispersant ma muli o ka hana ikaika o ka hopena wai. ʻO kahi laʻana o kāna hoʻohana penei: Ka hopena o ka hydroxyethyl methyl cellulose ma nā waiwai o ka sima. ʻO ka Hydroxyethyl methylcellulose kahi pauka keʻokeʻo ʻala ʻole, ʻono ʻole, ʻaʻohe mea ʻawahia e hoʻoheheʻe ʻia i ka wai anuanu e hana i kahi hopena maopopo a viscous. Loaʻa iā ia nā waiwai o ka hoʻomānoanoa, ka nakinaki ʻana, ka hoʻopuehu ʻana, ka emulsifying, ka hana ʻana i nā kiʻiʻoniʻoni, ka hoʻokuʻu ʻana, ka adsorbing, ka gelling, ka hana ʻana i ka ʻili, ka mālama ʻana i ka makū a me ka pale ʻana i nā colloids. Ma muli o ka hana ikaika o ka hopena wai, hiki ke hoʻohana ʻia ma ke ʻano he mea pale colloid, he emulsifier a me kahi dispersant. Loaʻa i ka hopena wai Hydroxyethyl methyl cellulose ka hydrophilicity maikaʻi a he mea mālama wai kiʻekiʻe.