Hana o ka hydroxypropyl methylcellulose HPMC i loko o ka pahū

ʻO ka Hydroxypropyl methylcellulose kekahi o nā mea hoʻohui nui cellulose ether i loko o ka mortar maloʻo a he nui nā hana i ka mortar. ʻO nā hana nui o ka hydroxypropyl methylcellulose i loko o ka mortar sima ka paʻa ʻana o 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 komo ʻana i ka ea, hoʻopanee i ka hoʻonohonoho ʻana, a me ka hoʻomaikaʻi ʻana i ka ikaika paʻa tensile. Ka manaʻo.

ʻO ka hana koʻikoʻi o ka hydroxypropyl methylcellulose i loko o ka mortar ka mālama ʻana i ka wai. Ma ke ʻano he cellulose ether admixture i loko o ka mortar, hiki ke hoʻohana ʻia ka hydroxypropyl methylcellulose i nā huahana mortar a pau, ma muli o kāna mau waiwai paʻa 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, ʻoi aku ka liʻiliʻi o ka nui o ka ʻāpana a 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 ka nui kūpono o nā ʻōhū i loko o ka pahū. Ma muli o ka "hopena pōpō" o nā ʻōhū,

Hoʻomaikaʻi ʻia ka hana hana ʻana o ka mortar, ʻoiai ka hoʻokomo ʻana o nā ʻōpū ea e hoʻonui i ka hua o ka mortar. ʻOiaʻiʻo, pono e hoʻomaluʻia ka nui o ka ea i komo. Ke komo nui ʻia ka ea, hiki ke hoʻopilikia i ka ikaika o ka mortar.

ʻO ka Hydroxypropyl methylcellulose e hoʻopaneʻe i ke kaʻina hana o ka sima, e hoʻolohi 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. Eia naʻe, ʻaʻole maikaʻi kēia hopena no ka mortar ma nā wahi anuanu.

Ma ke ʻano he mea polymer kaulahao lōʻihi, hiki i ka hydroxypropyl methylcellulose ke hoʻomaikaʻi i ka hana hoʻopaʻa ʻana me ka mea kumu i ka wā e mālama pono ai i ka wai o ka slurry ke hoʻohui ʻia i ka ʻōnaehana cement.

ʻO nā waiwai nui o ka HPMC i loko o ka mortar: ka paʻa ʻana o ka wai, ka mānoanoa, ka hoʻonui ʻana i ka manawa hoʻonohonoho, ka ea entrainment, ka hoʻomaikaʻi ʻana i ka ikaika paʻa tensile, etc.