Hiki ke hoʻokaʻawale ʻia ka HPMC i ka papa hana, ka papa meaʻai a me ka papa 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, ʻo kēlā me kēia kihi liʻiliʻi, kahi liʻiliʻi o ka pauka HPMC, hui pū. 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 kāna 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 e like me ke kaiapuni, ka mahana, ka maikaʻi o ka lehu calcium kūloko, ka pauka putty a me ka "maikaʻi i koi ʻia e nā mea kūʻai aku". ʻO ka viscosity o ka hydroxypropyl methylcellulose (HPMC) -putty pauka maʻamau 100,000, 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 hoʻopili 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 nā ʻōhū, ʻo ka nui o ka wai i hoʻokomo ʻia i loko, a ʻaʻole paha i maloʻo ka papa lalo, a ʻoki ʻia kahi papa ʻē aʻe ma luna, a ua maʻalahi ka huʻa. ʻO ka hopena mānoanoa o ka HPMC i ka pauka putty: hiki ke mānoanoa ka cellulose e hoʻokuʻu, mālama i ka hoʻonā ʻano like ʻole a paʻa, a pale aku 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: he hui ʻana o Ca(OH)2, CaO a me kahi mea 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-14-2023