He aha ka hoʻohana nui o HPMC?

Hoʻohana nui ʻia ʻo HPMC i nā mea hana, nā uhi, nā resins synthetic, nā ceramics, nā lāʻau lapaʻau, nā meaʻai, nā textiles, nā mahiʻai, nā mea hoʻonaninani, ka paka a me nā ʻoihana ʻē aʻe. Hiki ke hoʻokaʻawale ʻia ka HPMC i ka papa ʻoihana, ka papa meaʻai a me ka papa lāʻau lapaʻau e like me ka noi.

He aha ke ʻano o ka HPMC i ka pauka putty?

ʻO ka nui o ka HPMC i hoʻohana ʻia i nā noi kūpono e pili ana i ke aniau, ka mahana, ka maikaʻi o ka calcium lehu kūloko, ke ʻano o ka pauka putty a me ka maikaʻi i koi ʻia e nā mea kūʻai. Aia nā ʻokoʻa ma nā wahi like ʻole, ma ka ʻōlelo maʻamau, aia ma waena o 4-5 kg.

He aha ka viscosity kūpono o ka hydroxypropyl methylcellulose?

ʻO ka maʻamau, ua lawa ka pauka putty 100,000, a ʻoi aku ka kiʻekiʻe o ke koi i ka mortar, a pono ʻo 150,000 e maʻalahi e hoʻohana. Eia kekahi, ʻo ka hana nui o ka HPMC ʻo ka mālama ʻana i ka wai, a ukali ʻia e ka mānoanoa. I ka pauka putty, ʻoiai he maikaʻi ka paʻa ʻana o ka wai a haʻahaʻa ka viscosity (7-8), 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, ʻaʻohe hopena o ka viscosity i ka mālama ʻana i ka wai. nui.

He aha nā hōʻailona ʻenehana nui o ka hydroxypropyl methylcellulose?

Hydroxypropyl maʻiʻo

Maʻiʻo methyl

viscosity

Lehu

Pohō ma ka maloʻo

He aha nā mea waiwai nui o ka hydroxypropyl methylcellulose?

ʻO nā mea waiwai nui o ka HPMC: ka pulupulu hoʻomaʻemaʻe, ka methyl chloride, propylene oxide, nā mea waiwai ʻē aʻe, caustic soda, acid toluene.

He aha ka hana nui o ka hoʻohana ʻana i ka hydroxypropyl methylcellulose i loko o ka pauka putty, a hiki ke hana kemika?

Ma waena o ka pauka putty, hoʻokani ʻo ia i ʻekolu hana o ka mānoanoa, paʻa wai a me ke kūkulu ʻana. ʻO ka mānoanoa, hiki i ka cellulose ke mānoanoa a hiki ke hoʻokuʻu ʻia, e hoʻopaʻa 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 Hydroxypropyl methylcellulose he ether cellulose non-ionic, no laila he aha ka non-ionic?

Ma ka ʻōlelo a ka poʻe kamaʻāina, ʻaʻole komo nā mea inert i nā hopena kemika.

ʻO ka CMC (carboxymethyl cellulose) he cationic cellulose, no laila e lilo ia i pī pīni ke hālāwai ʻo ia i ka calcium lehu.

He aha ke ʻano o ka mahana gel o ka hydroxypropyl methylcellulose e pili ana?

ʻO ka mahana gel o HPMC e pili ana i kona methoxy content, ʻo ka haʻahaʻa o ka methoxy content, ʻoi aku ka kiʻekiʻe o ka mahana gel.

Aia kekahi pilina ma waena o ka kulu o ka pauka putty a me ka hydroxypropyl methylcellulose?

Aia nā pilina! ! ! ʻO ia ka paʻa ʻana o ka wai maikaʻi ʻole o ka HPMC, kahi e lilo ai ka pauda.

He aha ka ʻokoʻa ma waena o ka wai anuanu a me nā ʻano mea hoʻoheheʻe wela o ka hydroxypropyl methylcellulose i ka hana hana?

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.

He aha ke ʻala o ka hydroxypropyl methylcellulose?

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. (ʻO ka hoʻihoʻi ʻana o ka neutralization ka hana nui o ka ʻala)

pehea e koho ai i ka hydroxypropyl methylcellulose pono?

ʻO ka pauka Putty: pono ka mālama wai kiʻekiʻe, maʻalahi ke kūkulu ʻana

ʻO ka mortar maʻamau i hoʻokumu ʻia i ka sima: pono ka mālama ʻana i ka wai kiʻekiʻe, ke kūpaʻa wela kiʻekiʻe, a me ka viscosity koke (

Ka hoʻohana ʻana i ke kāpili kūkulu: nā huahana koke me ka viscosity kiʻekiʻe.

Gypsum mortar: ka paʻa wai kiʻekiʻe, ka liʻiliʻi a me ka viscosity haʻahaʻa, ka piʻi koke ʻana o ka viscosity

He aha ka inoa o 16 hydroxypropyl methylcellulose?

Kuhi ʻia ʻo HPMC a i ʻole MHPC alias hypromellose, cellulose hydroxypropyl methyl ether.

ʻO ka hoʻohana ʻana i ka hydroxypropyl methylcellulose i loko o ka pauka putty, he aha ke kumu o nā ʻōhū ea i loko o ka pauka putty?

I ka pauka putty, hoʻokani ʻo HPMC i ʻekolu hana o ka mānoanoa, paʻa wai a me ke kūkulu ʻana. ʻO nā kumu o nā'ōpū:

(1) Nui ka wai i hoʻohui ʻia.

(2) Ke maloʻo ʻole ka papa lalo, e ʻoki i kahi papa ʻē aʻe ma luna, a ua maʻalahi ka huʻa.

He aha ka ʻokoʻa ma waena o hydroxypropyl methylcellulose a me MC:

ʻO ka MC ka methyl cellulose, ka mea i hana ʻia me ka cellulose ether ma o ka mālama ʻana i ka pulupulu i hoʻomaʻemaʻe ʻia me ka alkali, me ka hoʻohana ʻana i ka methane chloride ma ke ʻano he etherification agent, a me ke ʻano o nā hopena. ʻO ka maʻamau, ʻo ke degere o ka hoʻololi ʻana he 1.6-2.0, a ʻokoʻa ka solubility me nā pae like ʻole o ka hoʻololi. ʻOkoʻa, no ka non-ionic cellulose ether.

(1) ʻO ka paʻa ʻana o ka wai o ka methylcellulose e pili ana i kona nui hoʻohui, viscosity, ʻoi aku ka maikaʻi a me ka helu dissolution. ʻO ka maʻamau, inā nui ka hoʻohui, liʻiliʻi ka fineness, a nui ka viscosity, kiʻekiʻe ka nui o ka paʻa ʻana o ka wai. Ma waena o lākou, ʻoi aku ka hopena o ka hoʻohui ʻana i ka nui o ka mālama wai kanaka. ʻAʻole kūlike ka viscosity i ka nui o ka mālama ʻana i ka wai. ʻO ka nui o ka hoʻoheheʻe ʻana ma muli o ka ʻili o nā ʻāpana cellulose. Degere o ka hoʻololi ʻana a me ka maikaʻi o nā ʻāpana. Ma waena o nā cellulose ethers ma luna, ʻo ka methyl cellulose a me ka hydroxypropyl methyl cellulose i ʻoi aku ka nui o ka paʻa wai.

(2) Hiki ke hoʻoheheʻe ʻia ka Methylcellulose i ka wai anuanu, a paʻakikī ke hoʻoheheʻe i ka wai wela. Paʻa loa kona hāʻina wai ma ka laulā o ph=3-12. He kūpono maikaʻi me ka starch, etc. a me nā surfactants he nui. Ke hiki i ka wela Ke hiki i ka mahana gelation, e hana ʻia ka gelation.

(3) Hoʻololi koʻikoʻi ka hoʻololi ʻana i ka mahana i ka nui o ka mālama ʻana i ka wai o ka methyl cellulose. ʻO ka maʻamau, ʻoi aku ka kiʻekiʻe o ka mahana, ʻoi aku ka maikaʻi o ka paʻa wai. Inā ʻoi aku ka mahana o ka mortar ma mua o 40 degere, e hoʻemi nui ʻia ka paʻa ʻana o ka wai o ka methyl cellulose, kahi e hoʻopilikia nui ai i ke kūkulu ʻana o ka mortar.

(4) He hopena koʻikoʻi ka methyl cellulose i ke kūkulu ʻana a me ka hoʻopili ʻana o ka mortar. ʻO ka hoʻopili ʻana ma ʻaneʻi e pili ana i ka ikaika hoʻopili i manaʻo ʻia ma waena o ka mea hoʻopili a ka mea hana a me ka substrate o ka pā, ʻo ia hoʻi, ka pale ʻana o ka mortar. He kiʻekiʻe ka adhesiveness, he nui ka pale ʻana o ka mortar, a ʻo ka ikaika e koi ʻia e ka poʻe hana i ka hana o ka hoʻohana ʻana he nui nō hoʻi, a ʻo ka hana ʻana o ka mortar he ʻilihune.

Hoʻokaʻawale ʻia ka Hydroxypropyl methylcellulose i kekahi mau ʻano, a he aha nā ʻokoʻa o kā lākou hoʻohana ʻana?

Hiki ke hoʻokaʻawale ʻia ka HPMC i ke ʻano koke (ka inoa inoa inoa "S") a me ke ʻano wela-melt. Puka koke nā huahana ʻano ʻano koke 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 (hoʻoulu) no 2 mau minuke, piʻi mālie ka viscosity o ka wai, e hana ana i kahi colloid viscous keʻokeʻo. ʻO nā huahana hoʻoheheʻe wela, ke hālāwai 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 like me ka mahana gel o ka huahana), e ʻike mālie ka viscosity a hiki i ka hana ʻana i kahi colloid viscous transparent.

He aha nā ʻano hoʻoheheʻe o ka hydroxypropyl methylcellulose?

1) Hiki ke hoʻohui ʻia nā hiʻohiʻona āpau i ka mea ma ke ʻano hui maloʻo;

2) I ka wā e pono ai e hoʻohui pono i ka maʻamau maʻamau aqueous solution, ʻoi aku ka maikaʻi o ka hoʻohana ʻana i ke ʻano hoʻopuehu wai anuanu, a he 10-90 mau minuke e mānoanoa ma hope o ka hoʻohui ʻana (hoʻoulu a hoʻoulu)

3) Hoʻoulu ʻia ke kumu hoʻohālike maʻamau a hoʻopuehu ʻia me ka wai wela ma mua, a laila hiki ke hoʻoheheʻe ʻia ma hope o ka hoʻohui ʻana i ka wai anuanu e hoʻoulu a hoʻomaha;

4) Inā hiki ke hoʻohui ʻia a me ka wīwī ʻana i ka wā o ka hemo ʻana, no ka lawa ʻole o ka hoʻoulu ʻana a i ʻole ke hoʻohui pono ʻia ke kumu hoʻohālike maʻamau i ka wai anuanu. I kēia manawa, pono e hoʻoulu koke. ka

5) Inā hoʻokumu ʻia nā ʻōhū i ka wā o ka hoʻoheheʻe ʻana, hiki ke waiho ʻia e kū no nā hola 2-12 (ua hoʻoholo ʻia ka manawa kikoʻī e ka kūlike o ka hopena) a i ʻole e hoʻoneʻe ʻia e ka hoʻoheheʻe ʻana, kaomi ʻana, etc., a i ʻole ka nui o ka defoaming agent. hiki ke hoʻohui ʻia. ka

Pehea e hoʻoholo ai i ka maikaʻi o ka hydroxypropyl methylcellulose maʻalahi a intuitively?

1) ʻO ke keʻokeʻo, ʻoiai ʻaʻole hiki i ka keʻokeʻo ke hoʻoholo inā he maʻalahi ka HPMC e hoʻohana, a inā hoʻohui ʻia nā mea keʻokeʻo i ke kaʻina hana, e hoʻopilikia ia i kona ʻano, akā ʻo ka hapa nui o nā huahana maikaʻi he keʻokeʻo maikaʻi.

2) Maikaʻi: ʻO ka maikaʻi o ka HPMC he 80 mesh a me 100 mesh, 120 mesh ka liʻiliʻi, ʻoi aku ka maikaʻi o ka ʻoi aku ka maikaʻi.

3) Ka hoʻouna māmā: Ma hope o ka hoʻokomo ʻia ʻana o ka HPMC i loko o ka wai e hana i kahi colloid māmā, e nānā i kāna transmittance māmā. ʻOi aku ka nui o ka māmā māmā, ʻoi aku ka maikaʻi, e hōʻike ana he liʻiliʻi nā insolubles i loko, a ʻoi aku ka maikaʻi o ka transmittance o nā reactors vertical. , 'Oi aku ka hewa o ka reactor horizontal, akā,'a'ole ia he 'oi aku ka maika'i o ka reactor vertical ma mua o ka reactor horizontal, a he nui nā kumu e ho'oholo ai i ka maika'i o ka huahana.

4) Kaumaha kikoʻī: ʻO ka nui o ka umekaumaha kikoʻī, ʻoi aku ka ʻoi aku ka maikaʻi. ʻOi aku ka kiʻekiʻe o ka gravity kikoʻī, ʻoi aku ka kiʻekiʻe o ka hydroxypropyl content i loko o ka huahana. ʻOi aku ka nui o ka hydroxypropyl content, ʻoi aku ka maikaʻi o ka mālama ʻana i ka wai.