ʻO Soluble hydroxypropyl methyl cellulose (HPMC) kahi ʻano o ka non-ionic cellulose ether, i hana ʻia mai ka cellulose polymer maoli ma o ke ʻano o ka hana kemika. ʻO ka Hypromellose (HPMC) he pauka keʻokeʻo e hoʻoheheʻe ʻia i loko o ka wai anuanu e hana i kahi hopena ʻālohilohi, viscous. Loaʻa iā ia nā waiwai o ka mānoanoa, adhesion, dispersion, emulsification, film forming, suspension, adsorption, gelation, surface activity, water retention and colloid protection. He waiwai koʻikoʻi ka paʻa ʻana o ka wai o ka HPMC hypromellose, ka mea i hopohopo nui ʻia e ka nui o nā mea hana mortar i hui pū ʻia ma Kina. ʻO nā mea e pili ana i ka paʻa ʻana o ka wai o ka mortar i hui pū ʻia me ka nui o ka HPMC, ka viscosity o HPMC, ka nui o ka ʻāpana a me ka mahana o ke kaiapuni. He kuleana koʻikoʻi ka HPMC hypromellose i ka mortar ma nā ʻano ʻekolu: kona paʻa ʻana i ka wai maikaʻi loa, kona hopena i ka paʻa ʻana o ka mortar a me ka thixotropy, a me kāna pilina me ka sima. ʻO ka hana paʻa wai o ka cellulose ether e pili ana i ka lawe ʻana o ka wai o ke kumu, ke ʻano o ka mortar, ka mānoanoa o ka mortar, ke koi wai o ka mortar a me ka manawa hoʻonohonoho o ka mea hoʻonohonoho. ʻOi aku ka maopopo o ka hypromellose, ʻoi aku ka maikaʻi o ka mālama ʻana i ka wai.
ʻO nā mea e pili ana i ka paʻa ʻana o ka wai o ka mortar, ʻo ia ka viscosity o cellulose ether, ka nui o ka hoʻohui ʻana, ka maikaʻi o ka ʻāpana a me ka mahana lawelawe. ʻOi aku ka nui o ka viscosity o cellulose ether, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai. ʻO ka viscosity kahi mea koʻikoʻi o ka hana HPMC. No ka huahana like, ana ʻia e nā ʻano ʻano like ʻole o nā hopena viscosity ʻokoʻa loa, a pāpālua kekahi i ka ʻokoʻa. No laila, i ka hoʻohālikelike ʻana i ka viscosity, pono ke ʻano hoʻāʻo like ma waena, me ka mahana, rotor a pēlā aku. ʻO ka ʻōlelo maʻamau, ʻoi aku ka kiʻekiʻe o ka viscosity, ʻoi aku ka maikaʻi o ka hopena paʻa wai. Eia naʻe, ʻoi aku ka kiʻekiʻe o ka viscosity, ʻoi aku ka kiʻekiʻe o ka molecular paona o HPMC, ʻo ka solubility o HPMC e hoʻemi e like me ia, kahi hopena maikaʻi ʻole i ka ikaika a me ke kūkulu ʻana i ka mortar. ʻOi aku ka kiʻekiʻe o ka viscosity, ʻoi aku ka maikaʻi o ka mānoanoa o ka mortar, akā ʻaʻole like ia me ka pilina. ʻOi aku ka kiʻekiʻe o ka viscosity, ʻoi aku ka viscous o ka mortar pulu, ʻelua no ke kūkulu ʻana, ka hana o ka sticking scraper a me ke kiʻekiʻe adhesion i ka substrate. Akā ʻaʻole kōkua ka hoʻonui ʻana i ka ikaika o ke kūkulu ʻana o ka mortar pulu ponoʻī. ʻO ka hana ʻelua, ka hana no ka hana anti-sagging. ʻO ka ʻokoʻa, ua hōʻike kekahi hypromellose i hoʻololi ʻia me ka haʻahaʻa haʻahaʻa a i ʻole ka haʻahaʻa haʻahaʻa i ka hana maikaʻi i ka hoʻomaikaʻi ʻana i ka ikaika o ke kūkulu ʻana o nā morta pulu. ʻOi aku ka kiʻekiʻe o ka cellulose ether i loko o ka mortar, ʻoi aku ka maikaʻi o ka waiwai paʻa wai, ʻoi aku ka kiʻekiʻe o ka viscosity a ʻoi aku ka maikaʻi o ka waiwai paʻa wai. He hōʻailona hana koʻikoʻi ka Fineness no hypromellose. ʻO ka maikaʻi o ka hypromellose kekahi hopena i kona mana paʻa wai. Ma keʻano laulā, no ka hypromellose me ka like viscosity akā ʻokoʻa ka fineness, ma lalo o ka nui hoʻohui like, ʻoi aku ka maikaʻi o ka fineness, ʻoi aku ka maikaʻi o ka hopena paʻa wai.
I loko o ka wet-mixed mortar, he haʻahaʻa loa ka hoʻohui ʻana o ka cellulose ether HPMC, akā hiki ke hoʻomaikaʻi i ka hana kūkulu ʻana o ka mortar pulu. ʻO ke koho kūpono o ka hypromellose he hopena maikaʻi loa i ka hana o ka mortar wet-mixed.
Ka manawa hoʻouna: Iulai-27-2023