He aha nā pilikia maʻamau o ka hydroxypropyl methylcellulose?

1. He aha ka noi nui ohydroxypropyl methylcellulose (HPMC)?

Hoʻohana nui ʻia ka Hydroxypropyl methylcellulose i nā mea hana, nā uhi, nā resins synthetic, keramika, lāʻau lapaʻau, meaʻai, textiles, mahiʻai, mea hoʻonaninani, paka a me nā ʻoihana ʻē aʻe. Hiki ke hoʻokaʻawale ʻia ka Hydroxypropyl methylcellulose i ka papa hana, ka papa meaʻai a me ka papa lāʻau lapaʻau e like me kāna noi. I kēia manawa, ʻo ka hapa nui o nā huahana home ka pae kūkulu. I ka papa hana, hoʻohana ʻia ka pauka putty i ka nui nui, ma kahi o 90% e hoʻohana ʻia no ka pauka putty, a hoʻohana ʻia ke koena no ka mortar sima a me ke kāpili.

2. He nui nā ʻano hydroxypropyl methylcellulose (HPMC), a he aha nā ʻokoʻa o kā lākou hoʻohana ʻana?

Hiki ke hoʻokaʻawale ʻia ka HPMC i ke ʻano koke a me ke ʻano wela wela. Puka koke nā ʻano huahana ke hālāwai lākou me 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 hope 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.

3. He aha nā ʻano hoʻoheheʻe o ka hydroxypropyl methylcellulose (HPMC)?

ʻO ke ʻano hoʻoheheʻe wai wela: No ka hemo ʻole ʻana o ka HPMC i ka wai wela, hiki ke hoʻopuehu like ʻia ka HPMC i ka wai wela i ka wā mua, a laila hemo koke i ka wā i maʻalili. ʻElua mau ʻano maʻamau i wehewehe ʻia penei:

1) E hoʻokomo i ka nui o ka wai wela i makemake ʻia i loko o ka pahu a wela iā ia ma kahi o 70 ° C. Hoʻohui mālie ʻia ka hydroxypropyl methylcellulose ma lalo o ka hoʻoulu ʻana i ka lohi, i ka mua ua lana ka HPMC ma luna o ka ʻili o ka wai, a laila hana mālie i kahi slurry, i hoʻoluʻu ʻia ma lalo o ka hoʻoulu ʻana.

2) E hoʻohui i 1/3 a i ʻole 2/3 o ka nui o ka wai i makemake ʻia i loko o ka pahu, a wela iā 70 ° C, e like me ke ʻano o 1), e hoʻopuehu iā HPMC e hoʻomākaukau i ka slurry wai wela; a laila e hoʻohui i ke koena o ka wai anuanu i ka slurry wai wela, ua maʻalili ka hui ʻana ma hope o ka hoʻoulu ʻana.

ʻO ke ʻano o ka hui ʻana o ka pauka: hui pū i ka pauka HPMC me ka nui o nā mea pauda ʻē aʻe, hui pono me ka mea hui, a laila hoʻohui i ka wai e hoʻoheheʻe ʻia, a laila hiki ke hoʻoheheʻe ʻia ʻo HPMC i kēia manawa me ka ʻole o ka agglomeration, no ka mea he wahi HPMC liʻiliʻi wale nō ma kēlā me kēia kihi liʻiliʻi ʻO ka pauka, e hoʻoheheʻe koke ʻia ke pili me ka wai. ——Ke hoʻohana nei nā mea hana i ka pauda putty a me ka motar i kēia ʻano hana. [Hoʻohana ʻia ka Hydroxypropyl methylcellulose (HPMC) ma ke ʻano he mānoanoa a me ka mea mālama paʻa wai i ka mortar pauka putty.]

4. Pehea e hoʻoholo ai i ka maikaʻi o ka hydroxypropyl methylcellulose (HPMC) maʻalahi a intuitively?

(1) Keʻokeʻo: ʻOiai ʻaʻole hiki i ka keʻokeʻo ke hoʻoholo inā he maʻalahi ka HPMC e hoʻohana, a inā hoʻohui ʻia nā mea keʻokeʻo i ka wā o ke kaʻina hana, e pili ana ia i kona maikaʻi. Eia naʻe, ʻo ka hapa nui o nā huahana maikaʻi he keʻokeʻo maikaʻi.

(2) Fineness: ʻO ka maikaʻi o ka HPMC he 80 mesh a me 100 mesh, 120 mesh ka liʻiliʻi, a ʻo ka hapa nui o ka HPMC i hana ʻia ma Hebei he 80 mesh. ʻO ka ʻoi aku ka maikaʻi, ʻo ka ʻōlelo maʻamau, ʻoi aku ka maikaʻi.

(3) Ka lawe ʻana: E hoʻokomo i ka hydroxypropyl methylcellulose (HPMC) i loko o ka wai e hana i kahi colloid akaka, a e nānā i kāna transmittance. ʻO ke kiʻekiʻe o ka transmittance, ʻoi aku ka maikaʻi, e hōʻike ana he liʻiliʻi ka insoluble i loko. ʻOi aku ka maikaʻi o ka permeability o nā reactors vertical, a ʻoi aku ka maikaʻi o nā reactors horizontal, akā ʻaʻole ia he manaʻo ʻoi aku ka maikaʻi o nā reactors vertical ma mua o nā reactors horizontal, a ua hoʻoholo ʻia ka maikaʻi o ka huahana e nā kumu he nui.

(4) Kaumaha kikoʻī: ʻO ka nui o ka umekaumaha kikoʻī, ʻoi aku ka ʻoi aku ka maikaʻi. Nui ka kikoʻī, maʻamau no ka mea he kiʻekiʻe ka ʻike o ka hui hydroxypropyl i loko, a ʻoi aku ka kiʻekiʻe o ka ʻike o ka hui hydroxypropyl, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai.

5. He aha ka nui o ka hydroxypropyl methylcellulose (HPMC) i loko o ka pauka putty?

ʻO ka nui o ka HPMC i hoʻohana ʻia i nā noi kūpono ʻokoʻa ma muli o ke aniau, ka mahana, ka maikaʻi o ka calcium lehu kūloko, ke ʻano o ka pauka putty a me ka "maikaʻi i makemake ʻia e nā mea kūʻai aku". ʻO ka maʻamau, ma waena o 4 kg a 5 kg. No ka laʻana: ʻo ka hapa nui o ka pauka 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 pauka putty ma Yunnan, maʻamau 3 kg a 4 kg, etc.

6. He aha ka viscosity kūpono o ka hydroxypropyl methylcellulose (HPMC)?

Ua lawa ka pauka Putty no 100,000 yuan, a ʻoi aku ka kiʻekiʻe o nā koi no ka mortar, a koi ʻia ka 150,000 yuan 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.

7. He aha nā hōʻailona loea nui o ka hydroxypropyl methylcellulose (HPMC)?

ʻO ka hydroxypropyl content a me ka viscosity, hopohopo ka hapa nui o nā mea hoʻohana i kēia mau hōʻailona ʻelua. ʻOi aku ka maikaʻi o ka mālama ʻana i ka wai i ka poʻe me ka hydroxypropyl kiʻekiʻe. ʻO ka mea nona ka viscosity kiʻekiʻe, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai, ma ke ʻano (ʻaʻole loa), a ʻoi aku ka maikaʻi o ka mea nona ka viscosity kiʻekiʻe i loko o ka momi sima.

8. He aha nā mea maka nui ohydroxypropyl methylcellulose (HPMC)?

ʻO nā mea waiwai nui o ka hydroxypropyl methylcellulose (HPMC): ka pulupulu hoʻomaʻemaʻe, ka methyl chloride, propylene oxide, a me nā mea waiwai ʻē aʻe, caustic soda, acid, toluene, isopropanol, etc.

9. He aha ka hana nui o ka hoʻohana ʻana i ka HPMC i ka pauka putty, a hana kemika?

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). ʻO nā mea nui o ka pauka calcium lehu: he hui ʻana o Ca (OH)2, Ca O a me kahi wahi liʻiliʻi o CaCO3, CaO+H2O=Ca (OH)2—Ca(OH)2+CO2=CaCO3↓+H2O ʻO ka lehu calcium i loko o ka wai a me ka ea Ma lalo o ka hana a CO2, hana ʻia ka calcium carbonate, ʻoiai ʻo HPMC wale nō ka mālama ʻana i ka wai, kōkua i ka hopena maikaʻi o ka calcium.

10. ʻO ka HPMC he cellulose ether non-ionic, no laila he aha ka non-ionic?

Ma ka ʻōlelo a ka poʻe kamaʻāina, ʻo nā non-ions nā mea i hoʻokaʻawale ʻole i ka wai. ʻO ka Ionization e pili ana i ke kaʻina hana i hoʻokaʻawale ʻia kahi electrolyte i nā ion i hoʻopaʻa ʻia e hiki ke neʻe manuahi i loko o kahi mea hoʻoheheʻe kūikawā (e like me ka wai, ka waiʻona). No ka laʻana, ʻo ka sodium chloride (NaCl), ka paʻakai a mākou e ʻai ai i kēlā me kēia lā, hoʻoheheʻe ʻia i loko o ka wai a hoʻoheheʻe ʻia e hana i nā ion sodium hiki ke hoʻoneʻe ʻia (Na+) i hoʻopaʻa maikaʻi ʻia a me nā ion chloride (Cl) i hoʻoili ʻole ʻia. ʻO ia hoʻi, i ka wāHPMChoʻokomo ʻia i loko o ka wai, ʻaʻole e hoʻokaʻawale ʻia i loko o nā ion i kau ʻia, akā aia ma ke ʻano o nā molekala.