ʻIke noi no ka hydroxypropyl methylcellulose i ka pauka putty

ʻO ka nui o ka HPMC i hoʻohana ʻia i nā noi kūpono e like me ke aniau, ka mahana, ka maikaʻi o ka pauka calcium lehu kūloko, ke ʻano o ka pauka putty a me ka "maikaʻi e koi ʻia e nā mea kūʻai aku". Ma ka ʻōlelo maʻamau, aia ma waena o 4 kg a me 5 kg. No ka laʻana: ʻo ka hapa nui o ka pauda putty ma Beijing he 5 kg; ʻO ka hapa nui o ka pauda putty ma Guizhou he 5 kg i ke kauwela a me 4.5 kg i ka hoʻoilo; liʻiliʻi ka nui o ka putty ma Yunnan, maʻamau 3 kg a 4 kg, etc.

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

ʻO ka pauka Putty ma ke ʻano he 100,000 yuan, a ʻoi aku ka kiʻekiʻe o nā koi no ka mortar, a ʻo 150,000 yuan e koi ʻia no ka hoʻohana maʻalahi. Eia kekahi, ʻo ka hana nui o ka 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 hou.

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

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

Mānoanoa: Hiki ke mānoanoa ka cellulose e hoʻopaneʻe a mālama i ka hoʻonā ʻaʻahu i luna a i lalo, a pale aku i ka haʻalulu.

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

Hana: 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 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. Inā wehe ʻoe i ka pauda putty ma ka paia mai ka paia, wili a lilo i pauda, ​​a hoʻohana hou, ʻaʻole ia e hana no ka mea ua hana ʻia nā mea hou (calcium carbonate). ) kekahi. 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 ʻO ke kuleana o ka calcium lehu. i CO2 i ka wai a me ka ea Ma lalo o kēia kūlana, hoʻokumu ʻia ka calcium carbonate, ʻoiai ʻo HPMC wale nō ka mālama ʻana i ka wai, e kōkua ana i ka hopena maikaʻi o ka calcium lehu, a ʻaʻole ia e komo i kekahi pane ponoʻī.