Hoʻohana i ka Cellulose HPMC i ka Putty Powder Mortar

Hiki ke hoʻokaʻawale ʻia ka HPMC i ka papa hana, ka meaʻai a me ka lāʻau lapaʻau e like me ke kumu.I kēia manawa, ʻo ka hapa nui o nā huahana home he mau papa hana, a ma nā papa hana, nui loa ka nui o ka pauka putty.E hoʻohui i ka pauda HPMC me ka nui o nā mea pauda ʻē aʻe, e hui pono me ka mea hui, a laila e hoʻohui i ka wai e hoʻoheheʻe ʻia, a laila hiki ke hoʻoheheʻe ʻia ka HPMC i kēia manawa me ka ʻole o ka hoʻohui ʻana, no ka mea, hui ʻia kēlā me kēia kihi liʻiliʻi, kahi wahi o ka pauka HPMC wai.e hemo koke.Hoʻohana ka poʻe hana i ka pauka putty a me ka mortar i kēia ʻano hana.Hoʻohana ʻia ʻo Hydroxypropyl methylcellulose (HPMC) ma ke ʻano he mānoanoa a me ka mea paʻa wai i loko o ka mortar pauka putty.

ʻO ka mahana gel o HPMC e pili ana i kona methoxy content, ʻo ka haʻahaʻa o ka methoxy content ↓, ʻoi aku ka kiʻekiʻe o ka mahana gel ↑.ʻO ka wai anuanu ʻano HPMC ua mālama ʻia me ka glyoxal, a hoʻopuehu koke i ka wai anuanu, akā ʻaʻole ia e hoʻoheheʻe maoli.Hoʻoheheʻe wale ia ke piʻi ka viscosity.ʻAʻole mālama ʻia nā ʻano melt wela me ka glyoxal.Inā nui ka nui o ka glyoxal, e wikiwiki ka hoʻopuehu ʻana, akā e piʻi mālie ka viscosity, a inā liʻiliʻi ka nui, ʻo ia ka ʻaoʻao.Hiki ke hoʻokaʻawale ʻia ka HPMC i ke ʻano koke a me ke ʻano wela wela.Hoʻopuehu koke ka ʻano huahana i ka wai anuanu a nalowale i loko o ka wai.I kēia manawa, ʻaʻohe viscosity o ka wai no ka mea ua hoʻopuehu wale ʻia ka HPMC i ka wai me ka ʻole o ka hemo maoli.Ma kahi o 2 mau minuke, piʻi mālie ka viscosity o ka wai, e hana ana i kahi colloid viscous transparent.ʻO nā huahana hoʻoheheʻe wela, ke hui ʻia me ka wai anuanu, hiki ke hoʻopuehu koke i ka wai wela a nalowale i ka wai wela.Ke hāʻule ka mahana i kekahi mahana, e ʻike mālie ʻia ka viscosity a hiki i ka hana ʻana i kahi colloid viscous transparent.Hiki ke hoʻohana wale ʻia ke ʻano hoʻoheheʻe wela i ka pauka putty a me ka mortar.I loko o ke kāpili wai a me ka pena, e hui pū ʻia nā mea ʻaʻole hiki ke hoʻohana.Loaʻa i ka ʻano koke ka laulā o nā noi.Hiki ke hoʻohana ʻia i loko o ka pauka putty a me ka mortar, a me ka wai kelu a me ka pena, me ka ʻole o nā contraindications.

ʻO ka HPMC i hana ʻia e ke ʻano solvent e hoʻohana i ka toluene a me ka isopropanol e like me nā solvents.Inā ʻaʻole maikaʻi loa ka holoi ʻana, loaʻa kekahi ʻala i koe.Ka hoʻohana ʻana i ka pauka putty: haʻahaʻa nā koi, ʻo ka viscosity he 100,000, lawa ia, ʻo ka mea nui e mālama pono i ka wai.Ka hoʻohana ʻana i ka mortar: nā koi kiʻekiʻe, kiʻekiʻe viscosity, 150,000 ʻoi aku ka maikaʻi.Ka hoʻohana ʻana i ke kāpili: pono nā huahana koke me ka viscosity kiʻekiʻe.ʻO ka nui o ka HPMC i hoʻohana ʻia i nā noi kūpono ʻokoʻa ma muli o ke kaiapuni, ka mahana, ka maikaʻi o ka lehu calcium kūloko, ka pauka putty a me ka "maikaʻi e koi ʻia e nā mea kūʻai aku".ʻO ka viscosity o ka hydroxypropyl methylcellulose (HPMC) -putty pauka he 100,000 maʻamau, a ʻoi aku ka kiʻekiʻe o ke koi no ka mortar, a pono ʻo 150,000 e maʻalahi e hoʻohana.Eia kekahi, ʻo ka hana nui o HPMC ʻo ka mālama ʻana i ka wai, a ukali ʻia e ka mānoanoa.I loko o ka pauka putty, ʻoiai he maikaʻi ka paʻa ʻana o ka wai a haʻahaʻa ka viscosity (70,000-80,000), hiki nō hoʻi.ʻOiaʻiʻo, ʻoi aku ka kiʻekiʻe o ka viscosity, ʻoi aku ka maikaʻi o ka paʻa wai pili.Ke ʻoi aku ka viscosity ma mua o 100,000, e hoʻopilikia ka viscosity i ka paʻa wai.ʻAʻole nui loa;ʻoi aku ka maikaʻi o ka mālama ʻana i ka wai i ka poʻe me ka hydroxypropyl kiʻekiʻe.ʻOi aku ka maikaʻi o ka paʻa ʻana o ka wai ka mea nona ka viscosity kiʻekiʻe, a ʻoi aku ka maikaʻi o ka mea me ka viscosity kiʻekiʻe i ka mīkini sima.

I loko o ka pauka putty, hoʻokani ʻo HPMC i ʻekolu hana o ka mānoanoa, paʻa wai a me ke kūkulu ʻana.Mai komo i kekahi hopena.ʻO ke kumu o ka nui o ka wai i hoʻokomo ʻia i loko, a ʻaʻole paha i maloʻo ka papa o lalo, a ʻoki ʻia kekahi papa ma luna, a maʻalahi ka huʻa.ʻO ka hopena mānoanoa o ka HPMC i ka pauka putty: hiki ke mānoanoa ka cellulose e hoʻokuʻu, e mālama i ka hoʻonā ʻaʻahu a paʻa, a pale i ka sagging.ʻO ka hopena paʻa wai o ka HPMC i ka pauka putty: e hoʻomaloʻo mālie i ka pauka putty, a kōkua i ka calcium lehu e hana ma lalo o ka hana o ka wai.ʻO ka hopena hana o ka HPMC i ka pauka putty: he hopena lubricating ka cellulose, hiki ke hana i ka pauka putty i ke kūkulu maikaʻi.ʻAʻole komo ʻo HPMC i nā hopena kemika, akā he hana kōkua wale nō.

ʻO ka lilo o ka pauka o ka pauka putty e pili nui i ka maikaʻi o ka calcium lehu, a ʻaʻohe mea liʻiliʻi me HPMC.ʻO ka haʻahaʻa o ka calcium haʻahaʻa o ka calcium hina a me ka ratio kūpono ʻole o CaO a me Ca(OH)2 i loko o ka calcium hina e lilo ai ka pauda.Inā he mea pili ia me ka HPMC, a laila inā ʻilihune ka mālama ʻana i ka wai o ka HPMC, e hāʻule pū ka pauda.ʻO ka hoʻohui ʻana i ka wai i ka pauka putty a kau ʻia ma ka paia he hopena kemika, no ka mea, ua hana ʻia nā mea hou, a ua wehe ʻia ka pauda putty ma ka paia mai ka paia.I lalo, lepo i pauka, a hoʻohana hou, ʻaʻole ia e hana, no ka mea, ua hana ʻia nā mea hou (calcium carbonate).ʻO nā mea nui o ka pauka calcium lehu: kahi hui o Ca(OH)2, CaO a me kahi liʻiliʻi o CaCO3, CaO+H2O=Ca(OH)2—Ca(OH)2+CO2=CaCO3↓+H2O Ash calcium Aia i loko o ka wai a me ka ea Ma lalo o ka hana a CO2, hoʻokumu ʻia ka calcium carbonate, ʻoiai ʻo HPMC e mālama i ka wai, e kōkua ana i ka hopena maikaʻi o ka calcium lehu, a ʻaʻole i komo i kekahi ʻano hana ponoʻī.


Ka manawa hoʻouna: Mar-18-2023