1. Hydroxypropyl methyl cellulosehiki ke hoʻoheheʻe ʻia i ka wai anuanu, ka wai wela i hoʻoheheʻe ʻia e hālāwai me nā pilikia. Akā ʻoi aku ka kiʻekiʻe o ka mahana o ka gelation i ka wai wela ma mua o ka methyl cellulose. Hoʻomaikaʻi nui ʻia ka solubility o ka methyl cellulose i ka wai anuanu.
2. ʻO ka viscosity o ka hydroxypropyl methyl cellulose e pili ana i kona kaumaha mole, aʻo ka nui o ke kaumaha mole kaʻoi aku o ka viscosity. E pili ana ka mahana i kona viscosity, piʻi ka mahana, emi iho ka viscosity. Eia naʻe, ʻoi aku ka haʻahaʻa o ka viscosity o ka wela ma mua o ka methyl cellulose. Paʻa ka hopena ke mālama ʻia ma ka lumi wela.
3. He kūpaʻa ka Hydroxypropyl methyl cellulose i ka waika a me ka alkali, a ua paʻa loa kona hopena wai i ka pae o ka pH = 2 ~ 12. ʻAʻohe hopena maikaʻi loa o ka soda a me ka wai lime i kona mau waiwai, akā hiki i ka alkali ke hoʻolalelale i kona helu hemo a hoʻomaikaʻi i ka viscosity o ka pine. He kūpaʻa ka Hydroxypropyl methyl cellulose i nā paʻakai maʻamau, akā ke kiʻekiʻe ka neʻe ʻana o ka hopena paʻakai, piʻi ka viscosity o ka hydroxypropyl methyl cellulose solution.
4. ʻO ka paʻa ʻana o ka wai o ka hydroxypropyl methyl cellulose e pili ana i kona nui hoʻohui, viscosity, a me nā mea ʻē aʻe.
5. ʻOi aku ka kiʻekiʻe o ka hoʻopili ʻana o ka hydroxypropyl methyl cellulose i ke kūkulu ʻana i ka mortar ma mua o ka methyl cellulose.
6. Hydroxypropyl methyl celluloseʻoi aku ka maikaʻi o ke kūpaʻa enzyme ma mua o ka methyl cellulose, a ʻoi aku ka haʻahaʻa o ka hiki ke hoʻohaʻahaʻa i ka enzymatic ma mua o ka methyl cellulose.
Ka manawa hoʻouna: Apr-26-2024