1. Gịnị bụ isi ihe e ji hydroxypropyl methyl cellulose eme?
HPMCA na-ejikarị ya eme ihe n'ihe owuwu ụlọ, ihe mkpuchi, resin sịntetik, seramiiki, ọgwụ, nri, ákwà, ọrụ ugbo, ihe ịchọ mma, ụtaba na ụlọ ọrụ ndị ọzọ. Enwere ike kewaa HPMC n'ime ọkwa ụlọ ọrụ mmepụta ihe, ọkwa nri na ọkwa ahụike dịka ojiji si dị.
2. A na-ekewa Hydroxypropyl methyl cellulose n'ọtụtụ ụdị, kedu ihe dị iche n'etiti ha?
Enwere ike kewaa HPMC n'ime ngwa ngwa (akara mgbakwunye "S") na ngwaahịa ngwa ngwa nke na-agbaze ọkụ, nke na-agbaze ngwa ngwa, na mmiri oyi gbasaa ngwa ngwa, pụọ n'ime mmiri, n'oge a mmiri ahụ enweghị viscosity, n'ihi na HPMC na-agbasa naanị n'ime mmiri, enweghị ezigbo mgbaze. Ihe dị ka nkeji abụọ, viscosity nke mmiri ahụ na-abawanye nwayọ nwayọ, na-emepụta jel doro anya ma na-arapara. Kpoo ngwaahịa ndị na-agbaze, nke a gbakọtara na mmiri oyi, nwere ike ịgbasa ngwa ngwa na mmiri ọkụ, pụọ n'ime mmiri ọkụ, dị ka okpomọkụ na-agbada ruo okpomọkụ ụfọdụ (dịka okpomọkụ gel nke ngwaahịa ahụ si dị), viscosity na-apụta nwayọ nwayọ, ruo mgbe e guzobere colloid viscous doro anya.
3. Kedu otu esi achọpụta ịdị mma nke hydroxypropyl methyl cellulose n'ụzọ dị mfe ma dịkwa mfe nghọta?
1) ọcha, ọ bụ ezie na ọcha enweghị ike ikpebi ma HPMC ọ dị mma, ọ bụrụkwa na etinyere ya na usoro mmepụta, ọ ga-emetụta àgwà ya, mana, ngwaahịa dị mma bụ ihe na-acha ọcha karịa.
2) ịdị mma: Ịdị mma HPMC na-abụkarị 80 ntupu na 100 ntupu, ihe na-erughị 120 ebumnuche, ka mma karịa.
3) nnyefe ọkụ: HPMC n'ime mmiri, na-emepụta colloid doro anya, na-ahụ nnyefe ọkụ ya, na-ebu ibu nke ihe dị mma, na-akọwa ihe na-anaghị agbaze n'ime, ketulu mmeghachi omume kwụ ọtọ site na ogo dị mma n'ozuzu ya, ga-eziga ụfọdụ ketulu mmeghachi omume kwụ ọtọ, mana enweghị ike ịkọwa àgwà mmepụta ketulu kwụ ọtọ ka mma karịa mmepụta ketulu ụgha, enwere ọtụtụ ihe na-ekpebi ịdị mma ngwaahịa.
4) nha nha: ka oke ahụ buru ibu, ka ọ dị arọ karịa nke ukwu, n'ozuzu ya n'ihi oke ọdịnaya nke hydroxypropyl dị n'ime, ọdịnaya hydroxypropyl dị elu, njigide mmiri ka mma.
4. Kedu ụzọ esi agbaze hydroxypropyl methyl cellulose?
1) Enwere ike itinye ụdị niile n'ime ihe ahụ site na usoro ngwakọta akọrọ;
2) Ọ dị mkpa ka etinyere ya ozugbo na mmiri okpomọkụ nkịtị, ọ ka mma iji mmiri oyi gbasaa, mgbe etinyere ya n'ozuzu ya n'ime nkeji 10-90 ka ọ dị oke mkpa (mee ka ọ dị nro)
3) Enwere ike ịgbaze ụdị nkịtị mgbe agwakọtara ma gbasaa na mmiri ọkụ ma tinye mmiri oyi mgbe a gwakọtara ya ma jụọ ya oyi;
4) Mgbe ọ na-agbaze, ọ bụrụ na ihe na-eme ka ihe gbazee emee, ọ bụ n'ihi na ihe na-akpali ya ezughi oke ma ọ bụ na a na-etinye ihe nlereanya nkịtị ozugbo n'ime mmiri oyi. N'oge a, a ga-akpali ya ngwa ngwa.
5) Ọ bụrụ na afụfụ emee n'oge ịgbaze, enwere ike iwepụ ha site n'ịnọgide ruo awa 2-12 (oge a kapịrị ọnụ dabere na nha anya nke ngwọta ahụ) ma ọ bụ site n'ikpochapụ na ịpịnye ya, ma ọ bụ site n'itinye ihe na-eme ka ọ ghara ịdị ọcha kwesịrị ekwesị.
5 hydroxypropyl methyl cellulose n'ime olu nke putty powder?
HPMC na ojiji nke ọnụọgụ ahụ, site na gburugburu ebe obibi, okpomọkụ, ịdị mma nke calcium isi awọ mpaghara, usoro ntụ ntụ putty na ihe ndị ahịa chọrọ nke ụdị dị iche iche, enwerekwa ọdịiche dị n'etiti kilogram 4-5.
6. Kedu ihe bụ viscosity kwesịrị ekwesị nke hydroxypropyl methyl cellulose?
Ntụ ntụ putty na-abụkarị iko 100,000, ihe achọrọ maka moto dị elu, ruo 150,000 dị mma, ọrụ HPMC ka mkpa bụ idobe mmiri, wee soro ya mee ka ọ sie ike. Na ntụ ntụ putty, ọ bụrụhaala na idobe mmiri dị mma, viscosity dị ala (7-8), o nwekwara ike, n'ezie, viscosity ahụ buru ibu, idobe mmiri dị mma karịa, mgbe viscosity karịrị 100,000, viscosity nke idobe mmiri adịghị oke.
7. Kedu ihe ndị bụ isi e ji hydroxypropyl methyl cellulose mee?
HPMCihe ndị bụ isi e ji mee ihe: owu a nụchara anụcha, chloromethane, propylene oxide, ihe ndị ọzọ e ji eme ihe, alkali mbadamba, acid toluene.
8. Hydroxypropyl methyl cellulose n'iji ntụ ntụ putty eme ihe, ọrụ bụ isi, ma ọ bụ kemịkal?
N'ime ntụ ntụ putty, ịka nká, idobe mmiri na ịrụ ọrụ atọ. Ịkpụ ihe, enwere ike ime ka cellulose sie ike ruo mgbe ọ ga-adị otu, ka ihe ngwọta ahụ wee nọgide na-adị otu, nke na-eme ka ọ ghara ịdaba n'ihe ndị na-egbochi mmiri. Ịdobe mmiri: mee ka ntụ ntụ putty kpọọ nkụ nwayọ nwayọ, calcium isi awọ na-enyere aka n'ọrụ mmeghachi omume mmiri. Nhazi: mmanụ cellulose, nwere ike ime ka ntụ ntụ putty nwee ezigbo owuwu. HPMC anaghị esonye na mmeghachi omume kemịkalụ ọ bụla, mana ọ na-arụ naanị ọrụ nkwado.
9.hydroxypropyl methyl cellulose bụ cellulose ether nke na-abụghị ionic, yabụ gịnị bụ non-ionic?
N'okwu ndị nkịtị, ihe ndị na-adịghị arụ ọrụ anaghị esonye na mmeghachi omume kemịkalụ.
CMC (carboxymethyl cellulose) bụ cationic cellulose, yabụ calcium isi awọ ga-aghọ ihe fọdụrụ na bean curd.
10. Kedu ihe bụ isi ihe na-egosi teknụzụ nke hydroxypropyl methyl cellulose?
Ọdịnaya hydroxypropyl
Ọdịnaya methyl
viscosity
ntụ
Mbelata ibu akọrọ
11. Gịnị metụtara okpomọkụ jel nke hydroxypropyl methyl cellulose?
Okpomọkụ gel nke HPMC metụtara ọdịnaya methoxyl, obere ọdịnaya methoxyl, ka okpomọkụ gel dị elu.
Mmekọrịta dị n'etiti ntụ ntụ putty na hydroxypropyl methyl cellulose na mmekọrịta dị n'etiti ntụ ntụ putty na hydroxypropyl methyl cellulose?
Ọ bụrụ na HPMC anaghị ejigide mmiri nke ọma, ọ ga-akpata ntụ ntụ ahụ.
13 hydroxypropyl methyl cellulose na itinye ntụ ntụ putty, ntụ ntụ putty, gịnị kpatara ya?
HPMC na ntụ ntụ putty, oke ọkpụrụkpụ, idobe mmiri na iwulite ọrụ atọ, ihe kpatara afụ ahụ:
1. ) A na-etinye oke mmiri.
2.) Ala nke dị n'elu ya adịghị akpọnwụ akpọnwụ, wee kpụchaa otu akwa dị n'elu ya, nke dịkwa mfe ịfụ.
14. Gịnị bụ ihe dị iche n'etiti hydroxypropyl methyl cellulose nke mmiri oyi na-agbaze ngwa ngwa na nke na-agbaze okpomọkụ n'usoro mmepụta?
Ụdị ngwọta mmiri oyi HPMC bụ mgbe a gwọchara glyoxal surface surface, tinye ya na mmiri oyi gbasaa ngwa ngwa, mana ọ gbazeghị nke ọma, viscosity ahụ na-agbaze, agbazekwa. A naghị eji glyoxal agwọ ụdị thermosoluble ahụ n'elu. Ọnụọgụ glyoxal buru ibu, mgbasa ahụ na-agba ọsọ, mana viscosity ahụ dị nwayọ, ọnụọgụ ahụ pere mpe, n'ụzọ megidere nke ahụ.
15. Gịnị ka isi hydroxypropyl methyl cellulose na-esi?
A na-eji toluene na isopropyl alcohol emepụta HPMC. Ọ bụrụ na ịsa ahụ adịghị mma nke ukwuu, a ga-enwe ntakịrị ụtọ fọdụrụ. (Nweghachi neutralization bụ isi ihe na-akpata isi ísì)
16. Kedu otu esi ahọrọ hydroxypropyl methyl cellulose kwesịrị ekwesị maka ojiji dị iche iche?
Ntụ ntụ putty: ihe achọrọ maka ijide mmiri dị elu, ezigbo ndakọrịta ihe owuwu (ọkwa akwadoro: 75AX100000)
Ngwa agha nkịtị nke e ji simenti mee: njide mmiri dị elu, iguzogide okpomọkụ dị elu, viscosity ozugbo (ọkwa akwadoro: 75AX150000)
Ojiji nke gluu ụlọ: ngwaahịa ozugbo, oke viscosity. (Nọmba akara akwadoro: 75AX200000S)
Ngwa agha Gypsum: njigide mmiri dị elu, viscosity ọkara na obere, viscosity ozugbo (ọkwa akwadoro: 75AX75000)
17. Gịnị bụ aha otutu maka hydroxypropyl methyl cellulose?
HPMC ma ọ bụ MHPC aha ya bụ hydroxypropyl methyl cellulose, cellulose hydroxypropyl methyl ether.
18. Gịnị bụ ihe dị iche n'etiti hydroxypropyl methyl cellulose naMC?
MC bụ methyl cellulose, a na-eme ka ọ dị nro mgbe a gwọchara ya na alkali, methane chloride dị ka ihe na-eme ka ọ dị nro, site na usoro mmeghachi omume ma mee ya site na cellulose ether, ọkwa nnọchi anya izugbe bụ 1.6-2.0, ọkwa dị iche iche nke mgbaze nnọchi dịkwa iche, nke bụ cellulose ether na-abụghị ionic.
(1) Njide mmiri nke methyl cellulose dabere na ọnụọgụ mgbakwunye ya, viscosity, ịdị mma nke ihe dị n'ime ya na ọnụego mgbaze. N'ozuzu, ọnụọgụ mgbakwunye buru ibu, ịdị mma dị obere, viscosity buru ibu, ọnụego njigide mmiri dị elu, ọnụọgụ mgbakwunye nwere nnukwu mmetụta na ọnụego njigide mmiri, viscosity na ọnụego njigide mmiri adịghị ala karịa mmekọrịta ahụ, ọnụego mgbaze dabere na ogo mgbanwe elu na ịdị mma nke ihe dị n'ime ya. Methyl cellulose na hydroxypropyl methyl cellulose dị na ọtụtụ cellulose ethers dị n'elu nwere ọnụego njigide mmiri dị elu.
(2) Enwere ike ịgbaze methyl cellulose na mmiri oyi, mmiri ọkụ ga-esi ike ịgbaze, mmiri mmiri ya na pH = 3-12 dị oke mma, starch, wdg., na ọtụtụ surfactants nwere ezigbo ndakọrịta, mgbe okpomọkụ ruru okpomọkụ gelation, a ga-enwe ihe na-eme ka gelation dị.
(3) Mgbanwe okpomọkụ ga-emetụta oke nchekwa mmiri nke methyl cellulose, n'ozuzu, ka okpomọkụ dị elu, otú ahụ ka nchekwa mmiri si ka njọ. Ọ bụrụ na okpomọkụ nke mortar karịrị ogo 40, nchekwa mmiri nke methyl cellulose ga-aka njọ nke ukwuu, nke na-emetụta ike nrụpụta nke mortar nke ukwuu.
(4)Methyl cellulosenwere mmetụta doro anya na ike owuwu na njikọta nke ngwa agha. Nrapado ebe a na-ezo aka na ike nrapado nke onye ọrụ na-etinye n'etiti ngwa agha na ihe mkpuchi mgbidi, ya bụ, nrapado nke ngwa agha. Nrapado buru ibu, nrapado nke ngwa agha buru ibu, ike ndị ọrụ chọrọ n'oge ojiji dịkwa ukwuu, na nrapado adịghị mma.
Oge ozi: Eprel-25-2024