1. Gịnị bụ isi ngwa nkehydroxypropyl methylcellulose (HPMC)?
A na-eji HPMC eme ihe n'ọtụtụ ebe na ihe owuwu, mkpuchi, resins sịntetik, ceramik, ọgwụ, nri, textiles, ọrụ ugbo, ihe ịchọ mma, ụtaba na ụlọ ọrụ ndị ọzọ. Enwere ike kewaa HPMC ka ọ bụrụ ọkwa ihe owuwu, ọkwa nri na ọkwa ọgwụ dịka ebumnuche 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 n'ọtụtụ buru ibu, ihe dịka 90% na-eji ntụ ntụ eme ihe, ndị ọzọ na-eji ciment mortar.
2. Gịnị bụ isi nke hydroxypropyl methylcellulose (HPMC)?
HPMC mepụtara site na usoro mgbaze na-eji toluene na isopropanol dị ka ihe mgbaze. Ọ bụrụ na ịsa ahụ adịghị mma nke ukwuu, a ga-enwe isi ihe fọdụrụnụ.
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 na mmiri ọkụ na mbido mbụ, wee gbasaa 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, wee kpoo ya na 70 Celsius C, gbasaa HPMC dịka usoro nke 1 si dị), ma 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. [Hydroxypropyl methylcellulose (HPMC) na-eji dị ka onye na-ejigide ihe na-ekpo ọkụ na mmiri na-ekpo ọkụ na putty powder mortar. ]
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, na ntupu 120 dị obere. Ọtụtụ HPMC emepụtara na Hebei bụ ntupu 80. Ka mma dị mma, n'ozuzu n'ikwu okwu, ka mma.
(3) nnyefe ọkụ: tinyehydroxypropyl methylcellulose (HPMC)n'ime mmiri na-etolite a transperent colloid, na-ele ya ìhè transmittance. Ka ọkụ na-ebufe ọkụ dị ukwuu, ọ ka mma, na-egosi na ọ dị obere insoluble 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. Kedu ihe dị iche n'etiti ụdị ngwa ngwa mmiri oyi na ụdị hydroxypropyl methylcellulose na-ekpo ọkụ na-ekpo ọkụ na usoro mmepụta?
A na-eji glioxal na-agwọ ụdị HPMC ngwa ngwa na-agbasa ngwa ngwa, ọ na-agbasa ngwa ngwa na mmiri oyi, mana ọ naghị agbaze n'ezie. Ọ na-agbaze naanị mgbe viscosity na-abawanye. Ụdị ngwa ngwa enweghị ọgwụgwọ elu na glioxal. Ọ bụrụ na ọnụ ọgụgụ glycoxal buru ibu, nkesa ahụ ga-adị ngwa ngwa, ma viscosity ga-abawanye nwayọọ nwayọọ, ma ọ bụrụ na ọnụ ọgụgụ ahụ dị ntakịrị, ihe na-abụghị eziokwu.
6. Kedu ihe bụ viscosity kwesịrị ekwesị nke hydroxypropyl methylcellulose (HPMC)?
Putty ntụ ntụ n'ozuzu bụ 100,000 yuan, na ihe ndị a chọrọ maka ngwa agha dị elu, na 150,000 yuan chọrọ maka ojiji 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 mmadụ 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 nke hydroxypropyl 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 nkeHPMCna 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.
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). ) kwa.
Isi ihe dị na ntụ ntụ calcium ash bụ: ngwakọta nke Ca (OH) 2, CaO na obere CaCO3, CaO + H2O = Ca (OH) 2-Ca (OH) 2 + CO2 = CaCO3↓ + H2O Ash calcium dị na mmiri na ikuku N'okpuru ọrụ nke CO2, calcium carbonate na-emepụta, mgbe HPMC na-ejide mmiri dị mma na mmeghachi omume n'onwe ya, na-enyere aka na calcium.
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. Nke ahụ bụ, mgbe a na-etinye HPMC na mmiri, ọ gaghị ekewa n'ime ion ebubo, kama ọ dị n'ụdị molecules.
11. Gịnị bụ gel okpomọkụ nke hydroxypropyl methylcellulose metụtara?
The jel okpomọkụ nke HPMC metụtara methoxy ọdịnaya, ala methoxy ọdịnaya, elu jel okpomọkụ.
12. Enwere mmekọrịta ọ bụla n'etiti dobe putty powder na HPMC?
Ọnwụ ntụ ntụ nke putty ntụ ntụ na-emetụtakarị àgwà calcium ash, ọ nweghịkwa ihe jikọrọ ya na HPMC. Ọdịnaya calcium dị ala nke calcium isi awọ na oke na-ezighi ezi nke CaO na Ca (OH) 2 na calcium isi awọ ga-eme ka mfu ntụ ntụ. Ọ bụrụ na ọ nwere ihe jikọrọ ya na HPMC, mgbe ahụ ọ bụrụ na HPMC enweghị njide mmiri na-adịghị mma, ọ ga-eme ka ntụ ntụ ghara.
13. Kedu ihe dị iche n'etiti ụdị ngwa ngwa mmiri oyi na ụdị hydroxypropyl methylcellulose na-ekpo ọkụ na-emepụta ihe?
Ụdị mgbasa ozi ngwa ngwa nkeHPMCA na-eji glycoxal eme ya n'elu, ọ na-agbasa ngwa ngwa na mmiri oyi, mana ọ naghị agbaze n'ezie. Ọ na-agbaze naanị mgbe viscosity na-abawanye. Ụdị ngwa ngwa enweghị ọgwụgwọ elu na glioxal. Ọ bụrụ na ọnụ ọgụgụ glycoxal buru ibu, nkesa ahụ ga-adị ngwa ngwa, ma viscosity ga-abawanye nwayọọ nwayọọ, ma ọ bụrụ na ọnụ ọgụgụ ahụ dị ntakịrị, ihe na-abụghị eziokwu.
Oge nzipu: Eprel-25-2024