Mea hoʻomaʻemaʻe mānoanoa Hydroxypropyl Methyl Cellulose Etera HPMC
Kiʻekiʻe ViscosityHPMChydroxypropyl methyl cellulosemea mānoanoaNo ka pauka putty:
1) Nānā:HPMChe nonionic cellulose ether, keʻokeʻo hina-keʻokeʻo pauda a granule, ʻaʻala ʻole a ʻono ʻole, hiki ke hoʻoheheʻe ʻia i ka wai anuanu, glacial acetic acid, ethanol, methanol a me propylene glycol, hiki ke hoʻoheheʻe iki ʻia i ka acetone ma muli o ke ʻano o ka hoʻololi ʻana, ʻaʻole hiki ke hoʻoheheʻe ʻia i ka wai wela. , ethylene glycol a me toluene.Hoʻoheheʻe ʻia ʻo HPMC i kahi hui ʻana o 10% methanol a me 90% methylene chloride e hana i nā hopena colloidal.
2) Loaʻa i ka hopena o HPMC ka hana ma luna, ke aniani kiʻekiʻe, a me ka hana paʻa.Ke hoʻomehana ʻia i kekahi mahana, lilo ka hopena i ʻeleʻele a i ʻole e hana i ka gel flocculent.Akā naʻe, akaka hou ka hoʻonā ma hope o ka hoʻoilo.Loaʻa i nā ʻano like ʻole o ka HPMC nā mahana gelation ʻokoʻa.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% ka nui o ka hala ma 80 mesh.
4) Māmā ʻikea: 0.25-0.70 g/mL (maʻamau ma kahi o 0.5 g/mL), 1.26-1.31mL kikoʻī.
5) Ka mahana hoʻololi kala: 190-200 ° C;ʻO ka mahana carbonization: 280-300 ° C.
6) Kūleʻa 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) He mau hiʻohiʻona ʻē aʻe ka HPMC, 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.
2) Loaʻa i ka hopena o HPMC ka hana ma luna, ke aniani kiʻekiʻe, a me ka hana paʻa.Ke hoʻomehana ʻia i kekahi mahana, lilo ka hopena i ʻeleʻele a i ʻole e hana i ka gel flocculent.Akā naʻe, akaka hou ka hoʻonā ma hope o ka hoʻoilo.Loaʻa i nā ʻano like ʻole o ka HPMC nā mahana gelation ʻokoʻa.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% ka nui o ka hala ma 80 mesh.
4) Māmā ʻikea: 0.25-0.70 g/mL (maʻamau ma kahi o 0.5 g/mL), 1.26-1.31mL kikoʻī.
5) Ka mahana hoʻololi kala: 190-200 ° C;ʻO ka mahana carbonization: 280-300 ° C.
6) Kūleʻa 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) He mau hiʻohiʻona ʻē aʻe ka HPMC, 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.
Loaʻa nā huahana Youngcel i nā ʻano huahana wai like ʻole e like me ka hoʻomaʻemaʻe papahele, nā mea holoi a me nā huahana holoi kīʻaha me ka pH ma waena.6- 8
ʻOpiocelhiki ke hoʻohana ʻia e like me ka mānoanoa e hoʻoponopono i ka rheology o nā mea holoi wai, hoʻoponopono i ka helehelena i makemake ʻia a me ke kūlike kūpono.
ʻOpiocel hiki ke hoʻohana pono a ʻoi aku ka maikaʻi o nā formula viscous a me nā mea hoʻomaʻemaʻe gel, no ka meaʻOpiocele waiho i nā mea hoʻomaʻemaʻe gel ma luna o ka ʻili a hana no kahi manawa lōʻihi, no laila ʻoi aku ka maikaʻi o ka hoʻomaʻemaʻe ʻana.
- Nā hopena mānoanoa
- Hoʻoponopono i ka kūlike
- Hoʻohālikelike me nā mea hoʻoheheʻe ionic
- ʻO nā hāʻina o ke aniani kiʻekiʻe
