1. Kedu ụzọ esi agbaze hydroxypropyl methylcellulose HPMC?
Azịza: Usoro ịgbaze mmiri ọkụ: Ebe ọ bụ na HPMC anaghị agbaze na mmiri ọkụ, enwere ike ịgbasa HPMC n'otu aka ahụ na mmiri ọkụ na mbido, wee gbazee ngwa ngwa mgbe ọ jụrụ oyi. A kọwara ụzọ abụọ a na-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, gbasaa HPMC dịka usoro nke 1 si dị), ma kwadebe mmiri ọkụ; wee tinye mmiri oyi fọdụrụ na mmiri ọkụ, ngwakọta ahụ jụrụ oyi mgbe agwakọtara ya.
Usoro ngwakọta ntụ ntụ: gwakọta ntụ ntụ HPMC na ọtụtụ ihe ndị ọzọ dị ka ntụ ntụ, gwakọta ya nke ọma na igwekota, wee tinye mmiri ka ọ gbazee, mgbe ahụ enwere ike ịgbaze HPMC n'oge a na-enweghị njikọta, n'ihi na obere HPMC dị na obere nkuku ọ bụla, ntụ ntụ ga-agbaze ozugbo mgbe ọ metụrụ mmiri aka. ——Ndị na-emepụta ntụ ntụ na ngwa agha na-eji usoro a. [A na-eji Hydroxypropyl methylcellulose (HPMC) eme ihe dị ka ihe na-eme ka mmiri sie ike ma na-ejide mmiri na ngwa agha ntụ ntụ putty.
2) Tinye mmiri ọkụ achọrọ n'ime akpa ahụ wee kpoo ya ọkụ ruo ihe dị ka 70°C. A na-etinye hydroxypropyl methylcellulose nwayọ nwayọ n'ime ya, na mbụ, HPMC na-ese n'elu mmiri ahụ, wee jiri nwayọọ nwayọọ mepụta slurry, nke a na-ajụ oyi mgbe a na-akpali ya.
2. E nwere ọtụtụ ụdị hydroxypropyl methylcellulose HPMC. Kedu ihe dị iche n'ojiji ha?
Azịza: Enwere ike kewaa Hydroxypropyl methylcellulose HPMC n'ụdị ozugbo na ụdị mgbaze ọkụ. Ngwaahịa ụdị ozugbo na-agbasa ngwa ngwa na mmiri oyi ma na-apụ n'anya n'ime mmiri. N'oge a, mmiri mmiri ahụ enweghị viscosity, n'ihi na HPMC na-agbasa naanị na mmiri, ọ dịghị ezigbo mgbaze. Ihe dị ka nkeji abụọ, viscosity nke mmiri mmiri ahụ na-abawanye nwayọ nwayọ, na-emepụta viscous colloid doro anya. Ngwaahịa ndị na-agbaze ọkụ, mgbe ha zutere ya na mmiri oyi, nwere ike ịgbasa ngwa ngwa na mmiri ọkụ ma pụọ na mmiri ọkụ. Mgbe okpomọkụ dara ruo na okpomọkụ ụfọdụ, viscosity ga-apụta nwayọ nwayọ ruo mgbe ọ ga-emepụta viscous colloid doro anya. Ụdị agbaze ọkụ nwere ike iji naanị na putty powder na mortar. Na mmiri mmiri gluu na agba, a ga-enwe ihe na-eme ka a na-ahazi ya ma enweghị ike iji ya. Ụdị ngwa ngwa ahụ nwere ọtụtụ ojiji. Enwere ike iji ya na putty powder na mortar, yana mmiri mmiri gluu na agba, na-enweghị ihe mgbochi ọ bụla.
3. Gịnị bụ isi ihe e ji hydroxypropyl methylcellulose (HPMC) eme?
Azịza: A na-eji HPMC eme ihe n'ọtụtụ ebe n'ihe owuwu, 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 owuwu, ọkwa nri na ọkwa ọgwụ dịka ojiji si dị. Ugbu a, ọtụtụ n'ime ngwaahịa ụlọ bụ ọkwa owuwu. N'ọkwa owuwu, a na-eji ntụ ntụ putty eme ihe n'ọtụtụ buru ibu, ihe dị ka 90% bụ maka ntụ ntụ putty, ebe a na-eji ihe ndị ọzọ eme ihe maka simenti na gluu.
4. Kedu otu esi ekpebi ịdị mma nke hydroxypropyl methylcellulose (HPMC) n'ụzọ dị mfe na n'ụzọ amamihe?
Azịza: (1) Oke ike ndọda kpọmkwem: Ka ike ndọda kpọmkwem buru ibu, otú ahụ ka ike ndọda ahụ na-adị arọ karị. Oke ya buru ibu, n'ozuzu ya n'ihi na ọ bụ n'ihi na
(2) Ịcha ọcha: Ọ bụ ezie na ịcha ọcha enweghị ike ikpebi ma ọ dị mfe iji HPMC, ọ bụrụkwa na etinyere ihe ndị na-eme ka ọ dị ọcha n'oge mmepụta, ọ ga-emetụta àgwà ya. Agbanyeghị, ọtụtụ n'ime ngwaahịa dị mma nwere ezigbo ịcha ọcha.
(3) Ịdị mma: Ịdị mma nke HPMC na-enwekarị mpempe 80 na mpempe 100, ebe mpempe 120 pere mpe. Ọtụtụ HPMC emepụtara na Hebei bụ mpempe 80. Ka ịdị mma ya na-aka mma, otú ahụ ka ọ na-aka mma n'ozuzu ya.
(4) Mbufe ọkụ: tinye hydroxypropyl methylcellulose (HPMC) n'ime mmiri iji mepụta colloid doro anya, ma lelee nnyefe ọkụ ya. Ka nnyefe ọkụ dị elu, otú ahụ ka ọ ka mma, na-egosi na enweghị ihe na-agbaze na ya. . Mbufe nke reactor kwụ ọtọ na-adịkarị mma, nke reactor kwụ ọtọ na-aka njọ, mana ọ pụtaghị na ịdị mma nke reactor kwụ ọtọ ka mma karịa nke reactor kwụ ọtọ, enwere ọtụtụ ihe iji chọpụta ịdị mma ngwaahịa ahụ. Ọdịnaya nke otu hydroxypropyl dị na ya dị elu, ọdịnaya nke otu hydroxypropyl dịkwa elu, njigide mmiri ka mma.
5. Kedu ihe bụ isi ihe na-egosi teknụzụ nke hydroxypropyl methylcellulose (HPMC)?
Azịza: Ọdịnaya Hydroxypropyl na viscosity, ọtụtụ ndị na-eji ya na-echegbu onwe ha maka ihe ngosi abụọ a. Ndị nwere nnukwu hydroxypropyl na-enwekarị nchekwa mmiri ka mma. Ọdịnaya dị elu, nchekwa mmiri, dịtụ (kama karịa
6. Kedu ihe bụ viscosity kwesịrị ekwesị nke hydroxypropyl methylcellulose (HPMC)?
Azịza: Ntụ ntụ Putty na-abụkarị yuan 100,000, ihe achọrọ maka ngwa agha dịkwa elu, ọ dịkwa mfe iji yuan 150,000. Ọzọkwa, ọrụ kachasị mkpa nke HPMC bụ idobe mmiri, wee soro ya mee ka ọ dị arọ. Na ntụ ntụ putty, ọ bụrụhaala na idobe mmiri dị mma ma viscosity dị ala (70,000-80,000), ọ ga-ekwe omume. N'ezie, ka viscosity dị elu, otú ahụ ka idobe mmiri dị mma. Mgbe viscosity karịrị 100,000, viscosity ga-emetụta idobe mmiri. Ọ dịghịzi ihe ọzọ. N'ezie) ka mma, viscosity dịkwa elu, ọ ka mma iji ya na ngwa agha simenti.
7. Kedu ihe ndị bụ isi e ji hydroxypropyl methylcellulose (HPMC) mee?
Azịza: Isi ihe ndị e ji hydroxypropyl methylcellulose (HPMC) mee: owu a nụchara anụcha, methyl chloride, propylene oxide, na ihe ndị ọzọ e ji arụpụta ihe, caustic soda, acid, toluene, isopropanol, wdg.
8. Gịnị bụ isi ọrụ nke itinye HPMC n'ime ntụ ntụ putty, ọ na-emekwa na kemịkalụ?
Azịza: N'ime ntụ ntụ putty, HPMC na-arụ ọrụ atọ dịka ịkacha, idobe mmiri na ịrụpụta ihe. Ịkpọ: Enwere ike ime ka cellulose sie ike iji kwụchie ma mee ka ihe ngwọta ahụ dị otu elu na ala, ma gbochie ịda mba. Ịdobe mmiri: mee ka ntụ ntụ putty kpọọ nkụ nwayọ nwayọ, ma nyere calcium ntụ aka imeghachi omume n'okpuru ọrụ mmiri. Nhazi: Cellulose nwere mmetụta na-eme ka mmanụ dị n'ahụ, nke 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 enyemaka. Ịtinye mmiri na ntụ ntụ putty ma tinye ya na mgbidi bụ mmeghachi omume kemịkalụ, n'ihi na a na-emepụta ihe ọhụrụ. Ọ bụrụ na ị wepụ ntụ ntụ putty na mgbidi site na mgbidi, gwerie ya ka ọ bụrụ ntụ, ma jiri ya ọzọ, ọ gaghị arụ ọrụ n'ihi na emepụtala ihe ọhụrụ (calcium carbonate). Isi ihe mejupụtara ntụ ntụ calcium ntụ bụ: ngwakọta nke Ca(OH)2, CaO2 na obere CaCO3, CaO+H2O=Ca(OH)2—Ca(OH)2+CO2=CaCO3↓+H2O Calcium ntụ dị na mmiri na ikuku N'okpuru ọrụ nke CO2, a na-emepụta calcium carbonate, ebe HPMC na-ejide naanị mmiri, na-enyere aka ka calcium ntụ dị mma, ọ naghịkwa esonye na mmeghachi omume ọ bụla n'onwe ya.
9. HPMC bụ cellulose ether nke na-abụghị ionic, gịnịkwa bụ non-ionic?
Azịza: N'okwu ndị nkịtị, enweghị ion bụ ihe na-agaghị ion n'ime mmiri. Ionization na-ezo aka n'usoro e si ekewa electrolyte n'ime ion charge nke nwere ike ịkwaga n'enweghị nsogbu n'ime ihe mgbaze kpọmkwem (dịka mmiri, mmanya). Dịka ọmụmaatụ, sodium chloride (NaCl), nnu anyị na-eri kwa ụbọchị, na-agbaze na mmiri ma na-agbanwe ion iji mepụta ion sodium na-agagharị agagharị (Na+) nke nwere chajị dị mma na ion chloride (Cl) nke nwere chajị na-adịghị mma. Nke ahụ bụ, mgbe etinyere HPMC na mmiri, ọ gaghị ekewa n'ime ion charge, kama ọ dị n'ụdị molekul.
10. È nwere njikọ dị n'etiti ntụ ntụ putty na HPMC?
Azịza: Ntufu ntụ ntụ nke putty na-adaberekarị n'ịdị mma nke calcium ntụ, ọ nweghịkwa ihe jikọrọ ya na HPMC. Ọdịnaya calcium dị ala nke calcium isi awọ na oke CaO na Ca(OH)2 na calcium isi awọ ga-akpata ntụ ntụ. Ọ bụrụ na ọ nwere ihe jikọrọ ya na HPMC, mgbe ahụ ọ bụrụ na HPMC enweghị mmiri zuru oke, ọ ga-akpatakwa ntụ ntụ.
11. Kedu ihe metụtara okpomọkụ jel nke hydroxypropyl methylcellulose?
Azịza: Okpomọkụ gel nke HPMC metụtara ọdịnaya methoxy ya, obere ọdịnaya methoxy↓, otú ahụ ka okpomọkụ gel na-arị elu.
12. Kedu otu esi ahọrọ hydroxypropyl methylcellulose (HPMC) kwesịrị ekwesị maka ebumnuche dị iche iche?
Azịza: Itinye ntụ ntụ putty: ihe achọrọ dị obere, viscosity ya dịkwa 100,000, nke zuru ezu. Ihe dị mkpa bụ idobe mmiri nke ọma. Itinye ụrọ: ihe achọrọ dị elu, viscosity dị elu, 150,000 ka mma. Itinye gluu: ngwaahịa ozugbo nwere viscosity dị elu chọrọ.
13. Gịnị bụ ihe dị iche n'etiti ụdị mmiri oyi na-agbaze ngwa ngwa na ụdị hydroxypropyl methylcellulose na-agbaze ngwa ngwa n'usoro mmepụta?
Azịza: A na-eji glyoxal agwọ ụdị HPMC mmiri oyi ozugbo, ọ na-agbasakwa ngwa ngwa na mmiri oyi, mana ọ naghị agbaze n'ezie. Ọ na-agbaze naanị mgbe viscosity mụbara. A naghị eji glyoxal agwọ ụdị agbaze ọkụ na-ekpo ọkụ. Ọ bụrụ na glyoxal buru ibu, mgbasa ahụ ga-adị ngwa ngwa, mana viscosity ahụ ga-abawanye nwayọ nwayọ, ọ bụrụkwa na ọnụọgụ ahụ pere mpe, ihe dị iche ga-abụ eziokwu.
14. Gịnị bụ isi nke hydroxypropyl methylcellulose (HPMC)?
Azịza: HPMC nke usoro ihe mgbaze mepụtara na-eji toluene na isopropanol dị ka ihe mgbaze. Ọ bụrụ na ịsa ahụ adịghị mma nke ukwuu, a ga-enwe isi ụfọdụ fọdụrụ.
15. Gịnị bụ aha ọzọ maka hydroxypropyl methylcellulose?
Azịza: Hydroxypropyl Methyl Cellulose, Bekee: Hydroxypropyl Methyl Cellulose Nchikota: HPMC ma ọ bụ MHPC Aha njirimara: Hypromellose; Cellulose hydroxypropyl methyl ether; Hypromellose, Cellulose, 2-hydroxypropyl methyl Cellulose ether. Cellulose hydroxypropyl methyl ether Hyprolose.
16. Gịnị ka a ga-elebara anya na ya n'otú e si etinye mmekọrịta dị n'etiti viscosity na okpomọkụ nke HPMC n'ọrụ?
Azịza: Oke mmiri nke HPMC na-adaba na oke okpomọkụ, ya bụ, oke mmiri na-abawanye ka okpomọkụ na-ebelata. Oke mmiri nke ngwaahịa anyị na-ezo aka na ya na-ezo aka na nsonaazụ nnwale nke mmiri mmiri 2% ya na okpomọkụ nke ogo Celsius 20.
N'ọrụ bara uru, a ga-amara na n'ebe nwere nnukwu ọdịiche okpomọkụ n'etiti oge okpomọkụ na oge oyi, a na-atụ aro ka e jiri obere viscosity n'oge oyi, nke na-eme ka ọ dịkwuo mma maka owuwu. Ma ọ bụghị ya, mgbe okpomọkụ dị ala, viscosity nke cellulose ga-abawanye, mmetụta aka ga-adịkwa arọ mgbe a na-akpụcha ya. viscosity dị n'etiti: 75000-100000 A na-ejikarị ya eme ihe maka putty. Ihe kpatara ya: ezigbo njigide mmiri. viscosity dị elu: 150000-200000 A na-ejikarị ya eme ihe maka mkpuchi okpomọkụ polystyrene particle thermal insulation powder mortar glue powder na vitrified microbead thermal insulation mortar. Ihe kpatara ya: viscosity dị elu, strain adịghị mfe ịda, kwụgide, na imeziwanye owuwu.
17. Iji HPMC mee ihe n'ime ntụ ntụ putty, gịnị bụ ihe kpatara afụfụ ahụ n'ime ntụ ntụ putty?
Azịza: N'ime ntụ ntụ putty, HPMC na-arụ ọrụ atọ dịka ịka mma, idobe mmiri na ịrụpụta ihe. Esola na mmeghachi omume ọ bụla. Ihe kpatara afụfụ: 1. Tinye mmiri buru ibu. 2. Ala oyi akwa ahụ akpọghị nkụ, naanị kpụchaa oyi akwa ọzọ n'elu ya, ọ dịkwa mfe ịfụ ụfụfụ.
Oge ozi: Jenụwarị-13-2023