E ʻokoʻa anei ka paʻa wai o ka hydroxypropyl methylcellulose i nā kau like ʻole?

ʻO ka cellulose ether hpmc ka hana o ka paʻa ʻana o ka wai a me ka mānoanoa i ka mortar sima a me ka gypsum-based mortar, hiki ke hoʻomaikaʻi maikaʻi i ka adhesion a me ke kūpaʻa kūpaʻa o nā mea mortar.

ʻO nā mea e like me ke kinoea wela, ka mahana a me ka piʻi ʻana o ka ea he hopena maikaʻi ʻole i ka wikiwiki o ka hoʻoheheʻe ʻana o ka wai mai ka mortar sima a me nā huahana gypsum. No laila, aia kekahi mau ʻokoʻa i ka hoʻohui ʻana i ka nui like o nā huahana HPMC e mālama i ka pono wai i kēlā me kēia kau.

I ka ninini ʻana, hiki ke hoʻoponopono ʻia ka hopena paʻa wai ma o ka hoʻonui ʻana a me ka hoʻohaʻahaʻa ʻana i ke kahe ʻāpana. ʻO ka nui o ka mālama ʻana i ka wai o ka methyl cellulose ether i ka wela kiʻekiʻe ke kumu helu kuhikuhi e ʻike ai i ka maikaʻi o ka methyl cellulose ether.

Hiki i nā huahana HPMC kiʻekiʻe ke hoʻoponopono i ka pilikia o ka laka wai wela. I nā kau wela kiʻekiʻe, ʻoi aku hoʻi ma nā wahi wela a me ka hana chromatography, pono ka HPMC kiʻekiʻe e hoʻomaikaʻi i ka paʻa ʻana o ka wai o ka slurry.

ʻO ka HPMC kiʻekiʻe ka maikaʻi loa, a ua māhele like ʻia kāna mau methoxyl a me nā hui hydroxypropyl ma ke kaulahao mole o cellulose, hiki ke hoʻonui i ka hiki o nā molekole oxygen e hana i nā mea paʻa covalent ma nā mea paʻa hydroxyl a me etera.

Hiki iā ia ke hoʻomalu pono i ka evaporation o ka wai i hoʻokumu ʻia e ka wā wela a hoʻokō i kahi hopena paʻa wai kiʻekiʻe. Hiki ke hoʻohana ʻia ka methylcellulose HPMC kiʻekiʻe i loko o ka palaki hui ʻia a me ka plaster o nā hana Paris.

E hoʻopili i nā ʻāpana paʻa a pau e hana i kahi kiʻiʻoniʻoni, a e hoʻokuʻu mālie ʻia ka maʻemaʻe o ka hana maʻamau no ka manawa lōʻihi, a e pane me nā mea inorganic a me nā mea collagen e hōʻoia i ka ikaika paʻa a me ka ikaika tensile.

No laila, i ke kahua kūkulu hale kauwela, i mea e hoʻokō ai i ka hopena o ka mālama ʻana i ka wai, pono mākou e hoʻohui i nā huahana HPMC kiʻekiʻe e like me ka mea ʻai, inā ʻaʻole, ma muli o ka nele o ka paʻa, hoʻemi ʻia ka ikaika, ʻokiʻoki, pahu kinoea. a me nā pilikia ʻē aʻe o ka maikaʻi o ka huahana. Hiki wawe ka maloo.

Hoʻonui kēia i ka paʻakikī o ke kūkulu ʻana i nā limahana. I ka emi ʻana o ka mahana, hoʻemi mālie ka nui o ka HPMC i hoʻohui ʻia no ka loaʻa ʻana o ka ʻoluʻolu like.