ʻIke noi o ka hydroxypropyl methylcellulose i loko o ka pauka putty

ʻOkoʻa ka nui o ka HPMC i hoʻohana ʻia i nā hana kūpono ma muli o ke aniau, ka mahana, ka maikaʻi o ka pauka calcium lehu kūloko, ke ʻano o ka pauka putty a me ka "maikaʻi e pono ai nā mea kūʻai aku". Ma ke ʻano laulā, aia ma waena o 4 kg a me 5 kg. No ka laʻana: ʻo ka hapa nui o ka pauka putty ma Beijing he 5 kg; ʻo ka hapa nui o ka pauka putty ma Guizhou he 5 kg i ke kauwela a me 4.5 kg i ka hoʻoilo; ʻo ka nui o ka putty ma Yunnan he liʻiliʻi iki, maʻamau he 3 kg a 4 kg, a pēlā aku.

He aha ka mānoanoa kūpono o ka hydroxypropyl methylcellulose (HPMC) no ka hana ʻana i ka pauka putty?

ʻO ke kumukūʻai maʻamau o ka pauka Putty he 100,000 yuan, a ʻoi aku ke kiʻekiʻe o nā koi no ka mortar, a he 150,000 yuan ka mea e pono ai no ka hoʻohana maʻalahi. Eia kekahi, ʻo ka hana nui loa 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 viscosity (70,000-80,000), hiki nō hoʻi. ʻOiaʻiʻo, ʻo ke kiʻekiʻe o ka viscosity, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai. Ke ʻoi aku ka viscosity ma mua o 100,000, e hoʻopilikia ka viscosity i ka paʻa ʻana o ka wai. ʻAʻole nui hou.

He aha ka hana nui o ka hoʻopili ʻana o HPMC i ka pauka putty?

I loko o ka pauka putty, hoʻokani ʻo HPMC i ʻekolu mau kuleana o ka mānoanoa, ka paʻa ʻana o ka wai a me ke kūkulu ʻana.

Mānoanoa: Hiki ke hoʻomānoanoa ʻia ka cellulose e hoʻokuʻu a mālama i ka wai like i luna a i lalo, a pale aku i ka sagging.

Ka paʻa ʻana o ka wai: e hoʻomaloʻo mālie i ka pauka putty, a kōkua i ka lehu calcium e pane ma lalo o ka hana a ka wai.

Ke kūkulu ʻana: He hopena lubricating ko Cellulose, hiki ke hana i ka pauka putty i kūkulu maikaʻi ʻia.

ʻAʻole komo ʻo HPMC i kekahi hopena kemika, akā he hana kōkua wale nō ia. ʻO ka hoʻohui ʻana i ka wai i ka pauka putty a kau iā ia ma ka paia he hopena kemika ia, no ka mea, ua hoʻokumu ʻia nā mea hou. Inā ʻoe e wehe i ka pauka putty ma ka paia mai ka paia mai, wili iā ia i pauka, a hoʻohana hou, ʻaʻole ia e hana no ka mea ua hoʻokumu ʻia nā mea hou (calcium carbonate). ) pū kekahi. ʻO nā ʻāpana nui o ka pauka calcium 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 Ke kuleana o ka calcium lehu i loko o CO2 i ka wai a me ka ea Ma lalo o kēia kūlana, ua hoʻopuka ʻia ka calcium carbonate, ʻoiai ʻo HPMC e mālama wale i ka wai, e kōkua ana i ka hopena maikaʻi o ka calcium lehu, a ʻaʻole ia e komo i kekahi hopena ponoʻī.