ʻO nā kumu o nā ʻōpū a me nā pono a me nā hemahema o nā ʻōpala i ka wā o ka noi ʻana o nā huahana cellulose ether

ʻO nā huahana cellulose ether HPMC a me HEMC he mau pūʻulu hydrophobic a hydrophilic.ʻO ka hui methoxy he hydrophobic, a ʻokoʻa ka hui hydroxypropoxy e like me ke kūlana pani.He hydrophilic kekahi a he hydrophobic kekahi.ʻO ka hydroxyethoxy he hydrophilic.ʻO ka mea i kapa ʻia ʻo hydrophilicity ʻo ia ka mea nona ka waiwai o kahi kokoke i ka wai;ka hydrophobicity 'o ia ho'i ka waiwai o ka ho'olele 'ana i ka wai.Ma muli o ka hydrophilic a me ka hydrophobic ka huahana, aia ka huahana cellulose ether i ka hana ma luna, kahi e hana ai i nā ʻōpū ea.Inā hoʻokahi wale nō o nā waiwai ʻelua he hydrophilic a i ʻole hydrophobic, ʻaʻole e hana ʻia nā ʻōhū.Eia naʻe, he pūʻulu hydrophilic wale nō ka HEC o ka hui hydroxyethoxy a ʻaʻohe pūʻulu hydrophobic, no laila ʻaʻole ia e hoʻohua i nā ʻōpū.

Pili pololei ka ʻōhū ʻōhū i ka helu hoʻoheheʻe o ka huahana.Inā hoʻoheheʻe ʻia ka huahana ma kahi ʻano like ʻole, e puka mai nā ʻōpū.Ma keʻano laulā, ʻo ka haʻahaʻa o ka viscosity, ʻoi aku ka wikiwiki o ka dissolution rate.ʻO ke kiʻekiʻe o ka viscosity, ʻoi aku ka lohi o ka dissolution rate.ʻO kekahi kumu ʻē aʻe ka pilikia granulation, ʻaʻole i kūlike ka granulation (ʻaʻole like ka nui o ka particle, aia nā mea nui a me nā liʻiliʻi).Hoʻokaʻawale ka manawa hoʻoheheʻe, hoʻopuka i ka ʻea ea.

Hiki ke hoʻonui i ka ʻāpana o ka ʻōpala ʻana i nā mea maikaʻi o ka ea, ʻoi aku ka maikaʻi o ke kūkulu hale, ʻoi aku ka māmā o ka slurry, a ʻoi aku ka maʻalahi o ka ʻōpala ʻana.ʻO ka hemahema, ʻo ka loaʻa ʻana o nā bubbles e hōʻemi i ka nui o ka nui o ka huahana, e hōʻemi i ka ikaika, a e hoʻopilikia i ka pale ʻana o ka ʻāina.