Isiokwu nkeHydroxypropyl Methyl Cellulose HPMC

1. Gịnị bụ isi ngwa nke hydroxypropyl methylcellulose (HPMC)?

——Azịza: A na-eji HPMC eme ihe n'ọtụtụ ebe na ihe owuwu, mkpuchi, resins sịntetik, ceramik, ọgwụ, nri, akwa, ọrụ ugbo, ịchọ mma, ụtaba na ụlọ ọrụ ndị ọzọ. Enwere ike ikewa HPMC n'ime: ọkwa ihe owuwu, ọkwa nri na ọkwa ọgwụ dịka ojiji 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. Kedu ihe dị iche na ojiji ha?

——Azịza: Hydroxypropyl methylcellulose HPMC nwere ike kewaa n'ụdị ozugbo na ụdị mgbasa ọkụ. Ngwa ngwa ụdị ngwaahịa na-agbasa ngwa ngwa na mmiri oyi wee pụọ n'ime mmiri. Gbarie n'ezie. Ihe dị ka nkeji 2, viscosity nke mmiri mmiri na-eji nwayọọ nwayọọ na-abawanye, na-eme ka 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. Gịnị bụ mgbasa ụzọ nke hydroxypropyl methylcellulose HPMC?

——Azịza: Usoro mgbaze mmiri ọkụ: Ebe ọ bụ na HPMC adịghị agbaze na mmiri ọkụ, HPMC nwere ike ịgbasa na mmiri ọkụ na mbido mbụ, wee gbazee ngwa ngwa mgbe ọ dị jụụ. A na-akọwa ụzọ abụọ ahụkarị

dị ka ndị a:

1), tinye 1/3 ma ọ bụ 2/3 nke mmiri achọrọ n'ime akpa ahụ, kpoo ya ọkụ ruo 70.°C, gbasasịa HPMC dị ka usoro nke 1), ma kwadebe 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 na-eme ntụ ntụ, gwakọta nke ọma na mixer, 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 dị na obere obere ọ bụla. nkuku ntụ ntụ, ga-agbaze ozugbo mgbe mmiri na-akpakọrịta.——Putty ntụ ntụ na ndị na-emepụta ngwa agha na-eji usoro a. [Hydroxypropyl methylcellulose (HPMC) na-eji dị ka onye na-ejigide ihe na-ekpo ọkụ na mmiri na-ekpo ọkụ na putty powder mortar.

2) Tinye mmiri ọkụ achọrọ n'ime akpa wee kpoo ya ihe dịka 70°C. The hydroxypropyl methylcellulose e ji nwayọọ nwayọọ na-agbakwunyere n'okpuru nwayọọ edemede, ibido HPMC sere n'elu n'elu mmiri, na mgbe ahụ jiri nwayọọ nwayọọ kpụrụ a slurry, nke na mma n'okpuru edemede.

4. Kedu otu esi ekpe ikpe ogo hydroxypropyl methylcellulose (HPMC) dị mfe na nke ọma?

——Azịza: (1) Nnukwu ike ndọda: Ka ike ndọda dị iche iche na-ebuwanye ibu, otú ahụ ka ọ dị arọ karị. The ruru bụ nnukwu, n'ozuzu n'ihi na

(2) 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.

(3) 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, ka ọ ka mma n'ozuzu ya.

(4) Mfefe ọkụ: tinye hydroxypropyl methylcellulose (HPMC) n'ime mmiri iji mepụta colloid transperent, ma lelee nnyefe ọkụ ya. Nke dị elu na-ebufe ọkụ, nke ka mma, na-egosi na ọ dị obere insoluble na ya. . The permeability nke vetikal reactor bụ n'ozuzu mma, na nke kehoraizin reactor dị njọ, ma ọ pụtaghị na àgwà nke vetikal reactor dị mma karịa na nke kwụ ọtọ reactor, na e nwere ọtụtụ ihe na-ekpebi ngwaahịa àgwà. . Ọdịnaya nke hydroxypropyl otu dị na ya dị elu, na ọdịnaya nke hydroxypropyl otu dị elu, na njide mmiri ka mma.

5. Gịnị bụ isi oru egosi hydroxypropyl methylcellulose (HPMC)?

——Azịza: 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. Nnukwu viscosity, njide mmiri, dịtụ (kama

6. Kedu ihe bụ viscosity kwesịrị ekwesị nke hydroxypropyl methylcellulose (HPMC)?

——Azịza: Putty ntụ ntụ bụ n'ozuzu 100,000 yuan, na ihe ndị a chọrọ maka ngwa agha dị elu, na 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. Kpamkpam) dịkwa mma, na viscosity dị elu, na ọ ka mma iji ciment ngwa agha.

7. Kedu ihe bụ isi akụrụngwa nke hydroxypropyl methylcellulose (HPMC)?

——Azịza: 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.

8. Gịnị bụ isi ọrụ nke ngwa nke HPMC na putty ntụ ntụ, na ọ na-eme chemically?

——Azịza: 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). ) 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, ebe HPMC na-ejigide mmiri naanị, na-enyere aka mmeghachi omume ka mma nke calcium ash, na ọ dịghị etinye aka na mmeghachi omume ọ bụla n'onwe ya.

9. HPMC bụ cellulose ether na-abụghị ionic, yabụ kedu ihe na-abụghị ionic?

——Azịza: N'okwu ndị nkịtị, ndị na-abụghị ions bụ ihe 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.

10. Enwere mmekọrịta ọ bụla n'etiti dobe putty powder na HPMC?

——Azịza: Mfu 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.

11. Gịnị bụ gel okpomọkụ nke hydroxypropyl methylcellulose metụtara?

——Azịza: The jel okpomọkụ nke HPMC metụtara methoxy ọdịnaya. Ọdịnaya methoxy dị ala↓, na elu nke gel okpomọkụ.

12. Otu esi ahọrọ nke kwesịrị ekwesịhydroxypropyl methylcellulose (HPMC)maka ebumnuche dị iche iche?

——Azịza: Ngwa nke putty ntụ ntụ: ihe ndị a chọrọ dị ntakịrị, na viscosity bụ 100,000, nke zuru oke. Ihe dị mkpa bụ idobe mmiri nke ọma. Ngwa nke ngwa agha: elu chọrọ, elu viscosity, 150,000 ka mma. Ngwa nke gluu: ngwa ngwa ngwaahịa nwere nnukwu viscosity chọrọ.

13. Kedu ihe dị iche n'etiti ụdị ngwa ngwa mmiri oyi na ụdị hydroxypropyl methylcellulose na-ekpo ọkụ na-emepụta ihe?

——Azịza: Ụdị ngwa ngwa mmiri oyi nke HPMC na-eji glioxal 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. A naghị eji glycoxal agwọ ụdị agbaze na-ekpo ọkụ n'elu. 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.

14. Gịnị bụ isi nke hydroxypropyl methylcellulose (HPMC)?

——Azịza: HPMC nke usoro mgbaze na-emepụta na-eji toluene na isopropanol dị ka ihe mgbaze. Ọ bụrụ na ịsa ahụ adịghị mma nke ukwuu, a ga-enwe isi ihe fọdụrụnụ.

15. Kedu aha ọzọ maka hydroxypropyl methylcellulose?

——Azịza: Hydroxypropyl Methyl Cellulose, Bekee: Hydroxypropyl Methyl Cellulose Abbreviation: HPMC ma ọ bụ MHPC Alias: Hypromellose; Cellulose hydroxypropyl methyl ether; Hypromellose, cellulose, 2-hydroxypropyl methyl cellulose ether. Cellulose hydroxypropyl methyl ether Hyprolose.

16. Gịnị ka a ga-aṅa ntị na n'ezie ngwa nke mmekọrịta dị n'etiti viscosity na okpomọkụ nke HPMC?

——Azịza: Viscosity nke HPMC na-adaba na ọnọdụ okpomọkụ, ya bụ, viscosity na-abawanye ka okpomọkụ na-ebelata. Viscosity nke ngwaahịa anyị na-ezokarị aka na nsonaazụ nnwale nke 2% mmiri mmiri na-ekpo ọkụ na ogo 20 Celsius.

N'ime ngwa ndị bara uru, ekwesịrị iburu n'uche na n'ebe ndị nwere nnukwu okpomọkụ dị iche n'etiti oge okpomọkụ na oyi, a na-atụ aro ka iji obere viscosity dị ntakịrị na oyi, nke na-eme ka ọ dịkwuo mma n'ịrụ ụlọ. Ma ọ bụghị ya, mgbe okpomọkụ dị ala, viscosity nke cellulose ga-abawanye, na mmetụta aka ga-adị arọ mgbe ịchacha. Viscosity ọkara: 75000-100000 A na-ejikarị maka putty. Ihe kpatara ya: ezigbo njide mmiri. Nnukwu viscosity: 150000-200000 A na-ejikarị eme ihe maka polystyrene urughuru thermal mkpuchi ngwa agha gluu ntụ ntụ na vitrified microbead thermal insulation ngwa agha. Ihe kpatara ya: viscosity dị elu, ngwa agha adịghị mfe ịkwanye, kpọgidere, na imeziwanye ihe owuwu.

17. Ngwa nke HPMC na ntụ ntụ ntụ, kedu ihe kpatara egosipụta na ntụ ntụ ntụ?

——Azịza: N'ime ntụ ntụ putty, HPMC na-arụ ọrụ atọ nke ịgbara mmiri, njigide mmiri na ihe owuwu. Esokwala na mmeghachi omume ọ bụla. Ihe kpatara afụ: 1. Tinye oke mmiri. 2. Ala oyi akwa adịghị akọrọ, naanị kpochapụ oyi akwa ọzọ n'elu, ọ dịkwa mfe ịfụfụ.