Ma keʻano he mea nui o ka cellulose ether admixtures i loko o ka mortar pauka maloʻo, hydroxypropyl methylcellulose he nui nā hana i ka mortar. ʻO ka hana koʻikoʻi o ka hydroxypropyl methylcellulose i loko o ka pahu sima ʻo ka mālama ʻana i ka wai a me ka mānoanoa. Eia kekahi, ma muli o kona launa pū ʻana me ka ʻōnaehana sima, hiki iā ia ke pāʻani i ke kuleana kōkua i ka hoʻokomo ʻana i ka ea, ka hoʻihoʻi ʻana i ka hoʻonohonoho, a me ka hoʻomaikaʻi ʻana i ka ikaika paʻa tensile. hopena.
ʻO ka hana koʻikoʻi o ka hydroxypropyl methylcellulose i loko o ka mortar ka mālama ʻana i ka wai. E like me ka cellulose ether admixture i loko o ka mortar, hiki ke hoʻohana ʻia ka hydroxypropyl methylcellulose i loko o nā huahana mortar a pau, ma muli o ka paʻa ʻana o ka wai. ʻO ka ʻōlelo maʻamau, pili ka paʻa wai o ka hydroxypropyl methylcellulose i kona viscosity, degere o ka hoʻololi ʻana a me ka nui o nā ʻāpana.
Hoʻohana ʻia ʻo Hydroxypropyl methylcellulose ma ke ʻano he mānoanoa, a ʻo kona hopena mānoanoa e pili ana i ke kiʻekiʻe o ka hoʻololi ʻana, ka nui o ka particle, viscosity a me ka degere o ka hoʻololi ʻana o ka hydroxypropyl methylcellulose. ʻO ka mea maʻamau, ʻoi aku ka kiʻekiʻe o ke kiʻekiʻe o ka hoʻololi a me ka viscosity o cellulose ether, a ʻo ka liʻiliʻi o nā ʻāpana, ʻoi aku ka maopopo o ka hopena mānoanoa.
I loko o ka hydroxypropyl methylcellulose, ka hoʻokomo ʻana o nā pūʻulu methoxy e hōʻemi i ka ikehu ʻili o ka wai wai i loaʻa ka hydroxypropyl methylcellulose, i loaʻa ai i ka hydroxypropyl methylcellulose ka hopena ea ma ka mortar sima. E hoʻokomo i nā ʻōhū ea kūpono i loko o ka momi, ma muli o ka "poepoe hopena" o nā ʻōpū ea,
Hoʻomaikaʻi ʻia ka hana hana ʻana o ka mortar, a i ka manawa like, hoʻonui ka hoʻokomo ʻana i nā ʻōpū o ka ea i ka helu puka o ka mortar. ʻOiaʻiʻo, pono e hoʻomaluʻia ka nui o ka ea-entrainment. ʻO ka nui o ka hoʻokomo ʻana i ka ea ka hopena maikaʻi ʻole i ka ikaika o ka mortar.
ʻO ka Hydroxypropyl methylcellulose e hoʻopaneʻe i ke kaʻina hana o ka sima, no laila e hoʻolōʻihi i ka hoʻonohonoho ʻana a me ke kaʻina hana paʻakikī o ka sima, a e hoʻolōʻihi i ka manawa wehe o ka mortar e like me ia, akā ʻaʻole maikaʻi kēia hopena no ka mortar ma nā wahi anuanu.
Ma keʻano he mea polymer kaulahao lōʻihi, hiki i ka hydroxypropyl methylcellulose ke hoʻomaikaʻi i ka hana hoʻopaʻa ʻana me ka substrate ma hope o ka hoʻohui ʻia ʻana i ka ʻōnaehana cement ma lalo o ka manaʻo o ka mālama pono ʻana i ka wai i loko o ka slurry.
E hōʻuluʻulu, ka hana oHPMCi loko o ka mortar ka mea nui: ka paʻa ʻana o ka wai, ka mānoanoa, hoʻolōʻihi i ka manawa hoʻonohonoho, entraining ea a hoʻomaikaʻi i ka ikaika tensile bond, etc.
Ka manawa hoʻouna: Dec-19-2022