Nui nā kumu nui e pili ana i ka paʻa ʻana o ka wai o ka hydroxypropyl methylcellulose

ʻO ka Hydroxypropyl methylcellulose (HPMC) he ether non-ionic cellulose i hana ʻia mai ka cellulose material polymer maoli ma o nā kaʻina hana kemika. He pauka keʻokeʻo ʻaʻala ʻole, ʻono a ʻona ʻole e pehu ana i loko o kahi solution colloidal māmā a ʻeleʻele paha i loko o ka wai anuanu. He mānoanoa, hoʻopaʻa, dispersing, emulsifying, film-forming, suspending, adsorbing, gelling, surface active, moisture-retaining and protect colloid properties. Hiki ke hoʻohana ʻia ka Hydroxypropyl methyl cellulose a me ka methyl cellulose i nā mea kūkulu hale, ʻoihana pena, resin synthetic, ʻoihana ceramic, lāʻau lapaʻau, meaʻai, textile, mahiʻai, kemika o kēlā me kēia lā a me nā ʻoihana ʻē aʻe.

ʻO ka paʻa ʻana o ka wai o ka huahana hydroxypropyl methylcellulose HPMC ponoʻī e hoʻopilikia pinepine ʻia e nā kumu penei:

1. ʻO ka nui o ka hydroxypropyl methylcellulose HPMC i hoʻohui ʻia ʻO ka nui o ka cellulose ether HPMC i hoʻohui ʻia, ʻoi aku ka kiʻekiʻe o ka paʻa wai a ʻoi aku ka maikaʻi o ka hopena paʻa wai. Ma ka laulā o ka 0.25-0.6% hoʻohui, piʻi wikiwiki ka nui o ka paʻa wai me ka hoʻonui ʻana i ka nui o ka hoʻohui; ke piʻi aʻe ka nui o ka hoʻohui, e lohi ka piʻi ʻana o ka nui o ka mālama ʻana i ka wai.

2. HPMC viscosity o hydroxypropyl methylcellulose Ke piʻi ka viscosity o HPMC, piʻi pū ka nui o ka mālama ʻana i ka wai; ke piʻi ka viscosity i kahi pae, ʻoi aku ka maʻalahi o ka piʻi ʻana o ka paʻa wai.

3. Hydroxypropyl methylcellulose HPMC wela gel wela kiʻekiʻe wela gel wela, kiʻekiʻe ka paʻa wai; a i ʻole, haʻahaʻa ka paʻa wai.

4. Hydroxypropyl methylcellulose HPMC homogeneity HPMC me ka like like, methoxyl a me ka hydroxypropoxyl i puunaue like, a he kiʻekiʻe ka paʻa wai.