Nā huahana

High Viscosity HPMC hydroxypropyl methyl cellulose Thickener No ka pauka putty:
1. 'Ike: HPMC mea he non-ionic cellulose etera, keʻokeʻo hina-keʻokeʻo pauka a granule, odorless a me ka flavorless, e hoʻoheheʻe 'ia i loko o ka wai anuanu, glacial acetic acid, ethanol, methanol a me propylene glycol, iki hoʻoheheʻe i ka acetone ma muli o ke degere o nā mea hoʻololi, hiki ʻole i ka wai wela, ethylene glycol a me toluene.Hoʻoheheʻe ʻia ka HPMC i loko o kahi hui ʻana o 10% methanol a me 90% methylene chloride e hana i nā hopena colloidal.
2. ʻO ka hoʻonā o HPMC he hana ma luna o ka ʻili, ke ʻike kiʻekiʻe, a me ka hana paʻa.Ke hoʻomehana ʻia i kekahi mahana, lilo ka hopena i ʻeleʻele a i ʻole he gel flocculent.Eia nō naʻe, akaka hou ka hopena ma hope o ka hoʻomaloʻo ʻana.Loaʻa i nā ʻano like ʻole o ka HPMC nā mahana gelation like ʻole.ʻOkoʻa ka solubility me ka viscosity.ʻO ka haʻahaʻa o ka viscosity, ʻoi aku ka kiʻekiʻe o ka solubility.ʻOkoʻa nā ʻano like ʻole o ka HPMC i kekahi mau waiwai a ʻaʻole pili ka pH i ko lākou solubility i ka wai.
3. Ka nui o nā ʻāpana: 100 mesh.
4. ʻIke ʻia ka haʻahaʻa: 0.25-0.70 g / mL (maʻamau e pili ana i 0.5 g / mL), kikoʻī kikoʻī 1.26-1.31mL.
5. Hoʻololi kala kala: 190-200 ° C;ʻO ka mahana carbonization: 280-300 ° C.
6. Ka hoʻopaʻapaʻa o ka ʻili: 42-56 dyn/cm (2% aqueous solution).
7. ʻO ka maʻiʻo methoxy kiʻekiʻe ma HPMC, ka haʻahaʻa haʻahaʻa o ka gelation, a me ka solubility kiʻekiʻe i ka wai a me ka hana ma luna.
8. Loaʻa i ka HPMC kekahi mau hiʻohiʻona ʻē aʻe, no ka laʻana, ka waiwai mānoanoa, ka paʻa pH, ka paʻa ʻana o ka wai, ka waiwai hana kiʻiʻoniʻoni maikaʻi loa, ka hoʻopuehu maikaʻi a me ka hiki ke hoʻopili.