Hiki ke hoʻokaʻawale ʻia ka HPMC i ke ʻano kūkulu hale, ke ʻano meaʻai a me ke ʻano lāʻau lapaʻau e like me ke kumu. I kēia manawa, ʻo ka hapa nui o nā huahana kūloko he mau ʻano kūkulu hale, a ma nā ʻano kūkulu hale, nui loa ka nui o ka pauka putty. E kāwili i ka pauka HPMC me ka nui o nā mea pauka ʻē aʻe, e kāwili maikaʻi me ka mea hui, a laila e hoʻohui i ka wai e hoʻoheheʻe, a laila hiki ke hoʻoheheʻe ʻia ka HPMC i kēia manawa me ka ʻole o ka hoʻopili ʻana, no ka mea, ʻo kēlā me kēia kihi liʻiliʻi, kahi liʻiliʻi o ka pauka HPMC, e hui me ka wai. e hoʻoheheʻe koke ʻia. Hoʻohana nui nā mea hana pauka Putty a me ka mortar i kēia ʻano. Hoʻohana ʻia ʻo Hydroxypropyl methylcellulose (HPMC) ma ke ʻano he mea hoʻomānoanoa a me ka mea paʻa wai i loko o ka mortar pauka putty.
Pili ka mahana o ka gel o HPMC i kona ʻano methoxy, ʻo ka haʻahaʻa o ka ʻano methoxy ↓, ʻo ke kiʻekiʻe o ka mahana gel ↑. Hoʻopili ʻia ke ʻano wai anuanu o HPMC me ka glyoxal ma luna, a hoʻopuehu koke ia i ka wai anuanu, akā ʻaʻole ia e hoʻoheheʻe maoli. Hoʻoheheʻe wale ia i ka wā e piʻi ai ka mānoanoa. ʻAʻole mālama ʻia nā ʻano hoʻoheheʻe wela me ka glyoxal ma luna. Inā nui ka nui o ka glyoxal, e wikiwiki ka hoʻopuehu ʻana, akā e piʻi mālie ka mānoanoa, a inā liʻiliʻi ka nui, ʻo ka ʻaoʻao ʻē aʻe ka ʻoiaʻiʻo. Hiki ke hoʻokaʻawale ʻia ka HPMC i ke ʻano koke a me ke ʻano hoʻoheheʻe wela. Hoʻopuehu koke ka huahana ʻano koke i ka wai anuanu a nalowale i loko o ka wai. I kēia manawa, ʻaʻohe mānoanoa o ka wai no ka mea ua hoʻopuehu wale ʻia ka HPMC i loko o ka wai me ka ʻole o ka hoʻoheheʻe maoli. Ma kahi o 2 mau minuke, e piʻi mālie ka mānoanoa o ka wai, e hana ana i kahi colloid viscous maopopo. ʻO nā huahana hoʻoheheʻe wela, i ka wā e hui ai me ka wai anuanu, hiki ke hoʻopuehu koke i ka wai wela a nalowale i ka wai wela. Ke hāʻule ka mahana i kahi mahana, e ʻike mālie ʻia ka mānoanoa a hiki i ka hana ʻana i kahi colloid viscous moakaka. Hiki ke hoʻohana ʻia ke ʻano hoʻoheheʻe wela i ka pauka putty a me ka mortar. I loko o ke kāpili wai a me ka pena, e loaʻa ka hanana hui a ʻaʻole hiki ke hoʻohana ʻia. Loaʻa i ke ʻano koke kahi ākea o nā noi. Hiki ke hoʻohana ʻia i loko o ka pauka putty a me ka mortar, a me ke kāpili wai a me ka pena, me ka ʻole o nā contraindications.
Hoʻohana ka HPMC i hana ʻia e ke ʻano solvent i ka toluene a me ka isopropanol ma ke ʻano he solvents. Inā ʻaʻole maikaʻi loa ka holoi ʻana, e loaʻa ana kekahi ʻala koena. Hoʻopili ʻia ka pauka putty: haʻahaʻa nā koi, ʻo ka viscosity he 100,000, ua lawa ia, ʻo ka mea nui ka mālama pono ʻana i ka wai. Hoʻopili ʻia ka mortar: ʻoi aku ka kiʻekiʻe o nā koi, kiʻekiʻe ka viscosity, ʻoi aku ka maikaʻi o 150,000. Hoʻopili ʻia ka glue: pono nā huahana koke me ka viscosity kiʻekiʻe. ʻOkoʻa ka nui o ka HPMC i hoʻohana ʻia i nā noi hana ma muli o ke kaiapuni aniau, ka mahana, ka maikaʻi o ka calcium lehu kūloko, ke ʻano pauka putty a me ka "maikaʻi e pono ai nā mea kūʻai aku". ʻO ka viscosity o ka pauka hydroxypropyl methylcellulose (HPMC)-putty maʻamau he 100,000, a ʻoi aku ke kiʻekiʻe o ke koi no ka mortar, a pono ia he 150,000 e maʻalahi ai ka hoʻohana. Eia kekahi, ʻo ka hana nui o HPMC ka paʻa ʻana i ka wai, a ukali ʻia e ka mānoanoa. I loko o ka pauka putty, inā maikaʻi ka paʻa ʻana o ka wai a haʻahaʻa ka mānoanoa (70,000-80,000), hiki nō hoʻi. ʻOiaʻiʻo, ʻo ke kiʻekiʻe o ka mānoanoa, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai. Ke ʻoi aku ka mānoanoa ma mua o 100,000, e hoʻopilikia ka mānoanoa i ka paʻa ʻana o ka wai. ʻAʻole nui loa; ʻo ka poʻe me ka nui o ka hydroxypropyl he ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai. ʻO ka mea me ka mānoanoa kiʻekiʻe he ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai, a ʻoi aku ka maikaʻi o ka hoʻohana ʻana i ka mea me ka mānoanoa kiʻekiʻe i ka sima sima.
I loko o ka pauka putty, ʻekolu kuleana o HPMC o ka mānoanoa, ka paʻa ʻana o ka wai a me ke kūkulu ʻana. Mai komo i kekahi hopena. ʻO ke kumu o nā pehu, ʻo ia paha ka nui o ka wai i hoʻokomo ʻia, a i ʻole ʻaʻole maloʻo ka papa lalo, a ua ʻānai ʻia kekahi papa ma luna, a maʻalahi ke huʻa. Ka hopena mānoanoa o HPMC i loko o ka pauka putty: hiki ke mānoanoa ʻia ka cellulose e hoʻokuʻu, e mālama i ka hopena like a kūlike, a kū i ka sagging. ʻO ka hopena paʻa wai o HPMC i loko o ka pauka putty: e hoʻomaloʻo mālie i ka pauka putty, a kōkua i ka lehu calcium e pane ma lalo o ka hana a ka wai. ʻO ka hopena kūkulu o HPMC i loko o ka pauka putty: he hopena lubricating ko ka cellulose, hiki ke hana i ka pauka putty i kūkulu maikaʻi ʻia. ʻAʻole komo ʻo HPMC i kekahi hopena kemika, akā he kuleana kōkua wale nō.
ʻO ka nalowale ʻana o ka pauka o ka pauka putty e pili nui ana i ke ʻano o ka lehu calcium, a ʻaʻohe ona pili iki me ka HPMC. ʻO ka haʻahaʻa o ka calcium o ka calcium hina a me ka lakio kūpono ʻole o CaO a me Ca(OH)2 i ka calcium hina e hoʻoulu ai i ka nalowale ʻana o ka pauka. Inā pili ia i ka HPMC, a laila inā maikaʻi ʻole ka paʻa ʻana o ka wai o HPMC, e hāʻule pū kekahi ka pauka. ʻO ka hoʻohui ʻana i ka wai i ka pauka putty a kau iā ia ma ka paia he hopena kemika, no ka mea, ua hoʻokumu ʻia nā mea hou, a ua wehe ʻia ka pauka putty ma ka paia mai ka paia. I lalo, wili ʻia i pauka, a hoʻohana hou ʻia, ʻaʻole ia e hana, no ka mea, ua hoʻokumu ʻia nā mea hou (calcium carbonate). ʻO nā ʻāpana nui o ka pauka kalipuna lehu: kahi hui ʻana o Ca(OH)2, CaO a me kahi liʻiliʻi o CaCO3, CaO+H2O=Ca(OH)2—Ca(OH)2+CO2=CaCO3↓+H2O Aia ka kalipuna lehu i loko o ka wai a me ka ea Ma lalo o ka hana a CO2, hoʻopuka ʻia ka kalipuna kalapona, ʻoiai ʻo HPMC e mālama wale i ka wai, e kōkua ana i ka hopena maikaʻi o ka kalipuna lehu, a ʻaʻole ia e komo i kekahi hopena ponoʻī.
Ka manawa hoʻouna: Malaki-18-2023