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Hydroxypropyl Methyl Cellulose (HPMC)
Hydroxypropyl methyl cellulose, hoʻomaʻamaʻa i ka propyl methyl cellulose (HPMC hydroxypropylmethylcellulose, abbreviation), pono ia i nā ʻano like ʻole o ka etera cellulose non-ionic. He semi-synthetic, inactive, viscoelastic polymer i hoʻohana mau ʻia i ka ophthalmology ma ke ʻano he lubricant, a i ʻole he excipient a excipient paha i nā lāʻau lapaʻau waha, i loaʻa maʻamau i nā ʻano mea like ʻole. Hiki ke hoʻohana ʻia ka hydroxypropyl cellulose ma ke ʻano he meaʻai meaʻai, emulsifier, thickener, suspension agent a me ka gelatin holoholona.
NA MEA OLELO HOOLAHA Ka nana aku Pauda keʻokeʻo Ka Mahana Decomposition 200 min Ka Wela Hoʻololi 190-200 ℃ ʻO ka viscosity 400 Waiwai PH 5~8 ʻO ka mānoanoa 1.39g/cm3 Ka wela kalapona 280-300 ℃ ʻAno Papaʻai Maʻiʻo 99% ʻO ka ʻili o ka ʻili 42-56dyne/cm no ka hoʻonā wai wai -
Hydroxypropyl Methylcellulose (MHPC)
ʻO Hydroxypropyl methylcellulose (MHPC) he mea ʻala ʻole, ʻono ʻole, ʻaʻohe mea ʻawaʻawa cellulose ethers i loaʻa nā pūʻulu hyrdroxyl ma ke kaulahao cellulose i hoʻololi ʻia no kahi pūʻulu methoxy a hydroxypropyl me ka hoʻoheheʻe wai maikaʻi. ʻO ka HPMC F60S ka papa kiʻekiʻe-viscosity i hoʻohana ʻia ma ke ʻano he mānoanoa, binder, a me ke kiʻiʻoniʻoni ma mua i nā agrochemicals, coatings, ceramics, adhesives, inks, a me nā noi ʻē aʻe.
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Hydroxyethyl Cellulose (HEC)
ʻO ka Hydroxyethyl Cellulose (HEC) he polymer non-ionic, wai-soluble polymer i loaʻa mai i ke ʻano cellulose ma o ke ʻano o nā kaʻina kemika a me ke kino. solution gel viscous. I ka pH i loko o ka solution 2 a 12, ua pa'a loa ka solution. No ka mea, he mea nonionic ka hui HEC i ka wai wai, aole ia e hana ia me na anion a i ole cations a pili ole i na paakai.
Akā hiki i ka mole HEC ke hoʻohua i ka esterification, etherification, no laila hiki ke hoʻoheheʻe ʻia i loko o ka wai a hoʻomaikaʻi paha i kāna mau waiwai. He hiki nō hoʻi i ka HEC ke hana kiʻiʻoniʻoni maikaʻi a me ka hana ma luna.
