1. Gịnị bụ isi ngwa nkehydroxypropyl methylcellulose (HPMC)?
A na-eji hydroxypropyl methylcellulose eme ihe n'ọtụtụ ebe na ihe owuwu, mkpuchi, resins synthetic, ceramics, ọgwụ, nri, textiles, ọrụ ugbo, ịchọ mma, ụtaba na ụlọ ọrụ ndị ọzọ. Enwere ike kewaa Hydroxypropyl methylcellulose na ọkwa ihe owuwu, ọkwa nri na ọkwa ọgwụ dịka ngwa ya siri dị. Ka ọ dị ugbu a, ọtụtụ n'ime ngwaahịa ụlọ bụ ọkwa ihe owuwu. Na ọkwa ihe owuwu, a na-eji ntụ ntụ na-eme ihe na nnukwu ego, ihe dịka 90% na-eji ntụ ntụ eme ihe, ndị ọzọ na-eji ciment mortar na gluu.
2. Enwere ọtụtụ ụdị hydroxypropyl methylcellulose (HPMC), oleekwa ọdịiche dị na ojiji ha?
Enwere ike ikewa HPMC ka ọ bụrụ ụdị ngwa ngwa na ụdị mgbasa ọkụ. Ngwa ngwa ụdị ngwaahịa na-agbasa ngwa ngwa mgbe ha zutere mmiri oyi wee pụọ n'ime mmiri. N'oge a, mmiri mmiri enweghị viscosity n'ihi na HPMC na-agbasasị naanị na mmiri na-enweghị ezigbo mgbasa. Mgbe ihe dị ka nkeji 2 gachara, viscosity nke mmiri mmiri na-eji nwayọọ nwayọọ na-abawanye, na-akpụ a viscos colloid transperent. Ngwaahịa na-ekpo ọkụ na-ekpo ọkụ, mgbe a na-ezute mmiri oyi, nwere ike ịgbasa ngwa ngwa na mmiri ọkụ ma pụọ na mmiri ọkụ. Mgbe okpomọkụ na-adaba n'otu ọnọdụ okpomọkụ, viscosity ga-eji nwayọọ nwayọọ na-apụta ruo mgbe ọ na-emepụta colloid viscous na-egbuke egbuke. Ụdị agbaze na-ekpo ọkụ nwere ike iji naanị na ntụ ntụ na ngwa ngwa. N'ime gluu mmiri mmiri na agba, a ga-enwe mkpokọta mkpokọta na enweghị ike iji ya. Ụdị ngwa ngwa nwere ọtụtụ ngwa ngwa. Enwere ike iji ya na ntụ ntụ na ngwa ngwa, yana gluu mmiri na agba, na-enweghị ihe ọ bụla.
3. Kedu usoro mgbasa nke hydroxypropyl methylcellulose (HPMC)?
Usoro mgbasa mmiri ọkụ: Ebe ọ bụ na HPMC anaghị agbaze na mmiri ọkụ, HPMC nwere ike ịgbasa n'otu n'otu na mmiri ọkụ na mbido mbụ, wee gbaze ngwa ngwa mgbe ọ dị jụụ. A na-akọwa ụzọ abụọ ahụkarị dị ka ndị a:
1) Tinye mmiri ọkụ achọrọ n'ime akpa ahụ wee kpoo ya ihe dịka 70 Celsius. Na hydroxypropyl methylcellulose ji nwayọọ nwayọọ na-agbakwunyere n'okpuru nwayọọ edemede, na mbụ HPMC sere n'elu mmiri, na mgbe ahụ jiri nwayọọ nwayọọ na-etolite a slurry, nke a jụrụ n'okpuru edemede.
2) Tinye 1/3 ma ọ bụ 2/3 nke mmiri achọrọ n'ime akpa ahụ, ma kpoo ya na 70 Celsius C, dị ka usoro nke 1 si dị), gbasasịa HPMC iji dozie slurry mmiri ọkụ; wee tinye nke fọdụrụ ego nke mmiri oyi na mmiri ọkụ slurry, ngwakọta a mma mgbe edemede.
Usoro ngwakọta ntụ ntụ: mix HPMC ntụ ntụ na nnukwu ihe ndị ọzọ powdery, gwakọta nke ọma na igwekota, wee gbakwunye mmiri ka ọ gbazee, mgbe ahụ, HPMC nwere ike igbari n'oge a na-enweghị agglomeration, n'ihi na ọ bụ naanị obere HPMC n'akụkụ ọ bụla nkuku ntụ ntụ, ga-agbaze ozugbo na kọntaktị na mmiri. ——Ndị na-emepụta ntụ ntụ na ngwa agha na-eji usoro a eme ihe. A na-eji Hydroxypropyl methylcellulose (HPMC) mee ihe dị ka ihe na-eme ka mmiri sie ike na ihe na-ejide mmiri na ngwa ngwa putty powder.
4. Kedu otu esi ekpe ikpe ogo hydroxypropyl methylcellulose (HPMC) dị mfe na nke ọma?
(1) Ọcha: Ọ bụ ezie na ọcha enweghị ike ikpebi ma HPMC dị mfe iji, ma ọ bụrụ na agbakwunyere ihe ndị na-acha ọcha n'oge usoro mmepụta, ọ ga-emetụta àgwà ya. Otú ọ dị, ọtụtụ n'ime ngwaahịa ndị dị mma nwere ezigbo ọcha.
(2) Ịdị mma: Ịdị mma nke HPMC n'ozuzu nwere ntupu 80 na ntupu 100, ntupu 120 dị obere, na ọtụtụ HPMC emepụtara na Hebei bụ ntupu 80. Ka mma dị mma, n'ozuzu n'ikwu okwu, ka mma.
(3) Mbufe: Tinye hydroxypropyl methylcellulose (HPMC) n'ime mmiri iji mepụta colloid transperent, wee lelee nnyefe ya. Nke dị elu nke nnyefe, nke ka mma, na-egosi na ọ dị ntakịrị ihe na-adịghị edozi na ya. The permeability nke vetikal reactors bụ n'ozuzu ezi, na nke kehoraizin reactors bụ njọ, ma ọ pụtaghị na àgwà nke vetikal reactors dị mma karịa nke kehoraizin reactors, na ngwaahịa àgwà kpebisiri ike site ọtụtụ ihe.
(4) Ike ndọda pụrụ iche: Ka ike ndọda dị iche iche na-ebuwanye ibu, otú ahụ ka ọ na-akawanye mma. Ihe a kapịrị ọnụ bụ nnukwu, n'ozuzu n'ihi na ọdịnaya nke hydroxypropyl otu dị na ya dị elu, na ọdịnaya nke hydroxypropyl otu dị elu, njide mmiri dị mma.
5. Gịnị bụ ego nke hydroxypropyl methylcellulose (HPMC) na putty ntụ ntụ?
Ọnụ ego nke HPMC eji eme ihe na-arụ ọrụ dịgasị iche dabere na ihu igwe, okpomọkụ, àgwà calcium ash mpaghara, usoro nke putty ntụ ntụ na "àgwà ndị ahịa chọrọ". N'ikwu okwu n'ozuzu, n'etiti 4 kg na 5 kg. Dịka ọmụmaatụ: ọtụtụ n'ime ntụ ntụ putty na Beijing bụ kilogram 5; ọtụtụ n'ime ntụ ntụ putty na Guizhou bụ 5 n'arọ n'oge okpomọkụ na 4.5 n'arọ n'oge oyi; Ọnụ ọgụgụ nke ntụ ntụ putty na Yunnan dị ntakịrị, n'ozuzu 3 n'arọ ruo 4 n'arọ, wdg.
6. Kedu ihe bụ viscosity kwesịrị ekwesị nke hydroxypropyl methylcellulose (HPMC)?
Putty ntụ ntụ na-ezuru 100,000 yuan, na ihe achọrọ maka ngwa agha dị elu, yana 150,000 yuan chọrọ maka iji dị mfe. Ọzọkwa, ọrụ kachasị mkpa nke HPMC bụ njide mmiri, na-esote thickening. Na ntụ ntụ putty, ọ bụrụhaala na njide mmiri dị mma na viscosity dị ala (70,000-80,000), ọ ga-ekwe omume. N'ezie, ka viscosity dị elu, ka mma na-ejigide mmiri. Mgbe viscosity gafere 100,000, viscosity ga-emetụta njide mmiri. Ọ bụghị ọtụtụ ihe ọzọ.
7. Gịnị bụ isi oru egosi hydroxypropyl methylcellulose (HPMC)?
Ọdịnaya Hydroxypropyl na viscosity, ọtụtụ ndị ọrụ na-eche banyere ihe ngosi abụọ a. Ndị nwere ọdịnaya hydroxypropyl dị elu na-enwekarị njigide mmiri ka mma. Onye nwere viscosity dị elu nwere njide mmiri ka mma, dịtụ (ọ bụghị kpamkpam), na nke nwere nnukwu viscosity ka mma iji ciment mortar.
8. Kedu ihe bụ isi akụrụngwa nkehydroxypropyl methylcellulose (HPMC)?
Ihe ndị bụ isi nke hydroxypropyl methylcellulose (HPMC): owu a nụchara anụcha, methyl chloride, propylene oxide, na ihe ndị ọzọ, caustic soda, acid, toluene, isopropanol, wdg.
9. Gịnị bụ isi ọrụ nke ngwa nke HPMC na putty ntụ ntụ, na ọ na-eme chemically?
N'ime ntụ ntụ putty, HPMC na-arụ ọrụ atọ nke ịgbara mmiri, njigide mmiri na ihe owuwu. Ọkpụkpụ: Enwere ike ịgbatị cellulose ka ọ kwụsịtụ ma mee ka ngwọta ya bụrụ otu elu na ala, ma guzogide ịda mbà n'obi. Njide mmiri: mee ka ntụ ntụ putty kpoo nwayọọ nwayọọ, ma nyere calcium ash aka imeghachi omume n'okpuru ọrụ mmiri. Mwube: Cellulose nwere mmetụta mmanu mmanu, nke nwere ike ime ka uzuzu putty nwee ezigbo ihe owuwu. HPMC anaghị eso na mmeghachi omume kemịkalụ ọ bụla, mana ọ na-arụ naanị ọrụ inyeaka. Ịgbakwunye mmiri na ntụ ntụ na-etinye ya na mgbidi bụ mmeghachi omume kemịkal, n'ihi na a na-emepụta ihe ọhụrụ. Ọ bụrụ na i wepụ ntụ ntụ na mgbidi ahụ site na mgbidi, gwerie ya na ntụ ntụ ma jiri ya mee ihe ọzọ, ọ gaghị arụ ọrụ n'ihi na e mepụtala ihe ọhụrụ (calcium carbonate). Isi ihe dị na ntụ ntụ calcium ash bụ: ngwakọta nke Ca (OH) 2, Ca O na obere CaCO3, CaO + H2O = Ca (OH) 2-Ca (OH) 2 + CO2 = CaCO3↓ + H2O Ash calcium dị na mmiri na ikuku N'okpuru omume nke CO2, calcium carbonate na-emepụta, mgbe HPMC na-ejigide mmiri dị mma na mmeghachi omume ọ bụla, na-enyere aka na calcium n'onwe ya.
10. HPMC bụ cellulose ether na-abụghị ionic, yabụ kedu ihe na-abụghị ionic?
N'okwu ndị nkịtị, ndị na-abụghị ions bụ ihe ndị na-adịghị ionize na mmiri. Ionization na-ezo aka na usoro nke a na-ekewa electrolyte n'ime ion ebubo nke nwere ike ịkwaga n'enweghị ihe ọ bụla na ihe mgbaze (dị ka mmiri, mmanya). Dịka ọmụmaatụ, sodium chloride (NaCl), nnu anyị na-eri kwa ụbọchị, na-agbaze na mmiri na ionizes iji mepụta sodium ion (Na+) na-ebugharị n'enweghị ihe ọ bụla na ion chloride (Cl) nke a na-ebo ebubo na-ezighị ezi. Ya bụ, mgbeHPMCA na-etinye ya na mmiri, ọ gaghị ekewa n'ime ion ebubo, ma ọ dị n'ụdị molekul.
Oge nzipu: Eprel-28-2024