ʻO ka moa i hui pū ʻia: ʻo ka mortar hui ʻia he ʻano sima, hui pū ʻia, admixture a me ka wai, a e like me nā waiwai o nā ʻāpana like ʻole, e like me kekahi ratio, ma hope o ke ana ʻana i ke kahua hui, hui ʻia, lawe ʻia i kahi o ka kalaka i hoʻohana 'ia, a komo i loko o ka kūikawā Store i ka ipu a hoʻohana i ka pau pulu hui 'ia no ka manawa i oleloia.
Hoʻohana ʻia ʻo Hydroxypropyl methylcellulose ma ke ʻano he mea mālama wai no ka mortar sima a me ka retarder no ka paila ʻana. I ka hihia o ka gypsum ma ke ʻano he mea hoʻopili e hoʻomaikaʻi i ka noi a hoʻolōʻihi i ka manawa hana, ʻo ka paʻa ʻana o ka wai o ka HPMC e pale i ka slurry mai ka haki ʻana i ka wikiwiki ma hope o ka maloʻo ʻana, a hoʻomaikaʻi i ka ikaika ma hope o ka paʻakikī. He waiwai koʻikoʻi ka paʻa ʻana o ka wai o ka HPMC hydroxypropyl methylcellulose, a he mea hopohopo hoʻi ia no nā mea hana mokomoko wai-mix home. ʻO nā mea e pili ana i ka hopena paʻa wai o ka mortar hui pū me ka nui o ka HPMC i hoʻohui ʻia, ka viscosity o ka HPMC, ka maikaʻi o nā ʻāpana a me ka mahana o ka hoʻohana ʻana.
ʻEkolu mau hana nui o ka hydroxypropyl methylcellulose HPMC i loko o ka wet-mix mortar, ʻo ka mea maikaʻi loa ka paʻa ʻana o ka wai, ʻo ka mea ʻē aʻe ka mana i ka kūlike a me ka thixotropy o ka mortar wet-mix, a ʻo ke kolu ka pilina me ka sima. ʻO ka paʻa ʻana o ka wai o ka cellulose ether e pili ana i ka nui o ka lawe ʻana o ka wai o ke kumu, ke ʻano o ka mortar, ka mānoanoa o ka papa mortar, ke koi wai o ka mortar, a me ka manawa hoʻonohonoho. ʻOi aku ka kiʻekiʻe o ke aniani o ka hydroxypropyl methylcellulose, ʻoi aku ka maikaʻi o ka mālama ʻana i ka wai.
ʻO nā kumu e pili ana i ka paʻa ʻana o ka wai o ka mortar i hui pū ʻia me ka cellulose ether viscosity, ka nui hoʻohui, ka nui o ka ʻāpana a me ka mahana. ʻOi aku ka nui o ka viscosity o cellulose ether, ʻoi aku ka maikaʻi o ka mālama ʻana i ka wai. ʻO ka viscosity kahi mea koʻikoʻi o ka hana HPMC. No ka huahana hoʻokahi, ʻokoʻa nā hopena o ka hoʻohana ʻana i nā ʻano like ʻole e ana i ka viscosity, a ʻokoʻa ka lua o kekahi. No laila, pono e hoʻokō ʻia ka hoʻohālikelike o ka viscosity i ke ʻano hoʻāʻo like, me ka mahana, spindle, etc.
ʻO ka ʻōlelo maʻamau, ʻoi aku ka kiʻekiʻe o ka viscosity, ʻoi aku ka maikaʻi o ka mālama ʻana i ka wai. Eia nō naʻe, ʻoi aku ka kiʻekiʻe o ka viscosity, ʻoi aku ka kiʻekiʻe o ke kaumaha molekala o HPMC a me ka haʻahaʻa o ka solubility o HPMC, kahi hopena maikaʻi ʻole i ka ikaika a me ka hana ʻana o ka mortar. ʻO ke kiʻekiʻe o ka viscosity, ʻoi aku ka maopopo o ka hopena mānoanoa o ka mortar, akā ʻaʻole pili pono. ʻOi aku ka kiʻekiʻe o ka viscosity, ʻoi aku ka viscous o ka mortar pulu, ʻoi aku ka maikaʻi o ka hana kūkulu ʻana, ka hana ʻana o ka ʻōpala viscous a ʻoi aku ka kiʻekiʻe o ka hoʻopili ʻana i ka substrate. Eia naʻe, ʻaʻole kōkua ka hoʻonui ʻana i ka ikaika o ka mortar pulu ponoʻī. ʻAʻole maopopo ka hana anti-sag i nā kūkulu ʻelua. ʻO ka ʻokoʻa, ʻoi aku ka maikaʻi o ka hoʻomaikaʻi ʻana i ka ikaika o ke kūkulu ʻana o ka methylcellulose hydroxypropyl i hoʻololi ʻia.
ʻO ka nui o ka cellulose ether i hoʻohui ʻia i ka mortar pulu PMC, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai, a ʻoi aku ka kiʻekiʻe o ka viscosity, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai. ʻO ka maikaʻi kekahi mea hōʻailona hana nui o ka hydroxypropyl methylcellulose.
ʻO ka maikaʻi o ka hydroxypropyl methylcellulose kekahi hopena i kona paʻa wai. Ma keʻano laulā, no ka hydroxypropyl methylcellulose me ka viscosity like a me ka fineness ʻokoʻa, ʻoi aku ka liʻiliʻi o ka fineness, ʻoi aku ka liʻiliʻi o ka hopena paʻa wai ma lalo o ka nui hoʻohui like. ʻoi aku ka maikaʻi.
I loko o ka pulu pulu, he haʻahaʻa loa ka nui o ka cellulose ether HPMC, akā hiki iā ia ke hoʻomaikaʻi maikaʻi i ka hana o ka mortar pulu, a ʻo ia ka mea hoʻohui nui e pili ana i ka hana o ka mortar. ʻO ke koho kūpono o ka hydroxypropyl methylcellulose, ua hoʻopilikia nui ʻia ka hana o ka mortar pulu.
Ka manawa hoʻouna: Apr-25-2023