1. 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 ebumnuche ya 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.
2. E nwere ọtụtụ ụdị hydroxypropyl methylcellulose (HPMC), kedu ihe dị iche n'ojiji ha?
Azịza: Enwere ike kewaa HPMC n'ụdị ngwa ngwa na ụdị ọkụ-mgbaze. Ngwaahịa ụdị ngwa ngwa 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 a na-agbasa HPMC naanị na mmiri na-enweghị ezigbo mgbaze. Ihe dị ka nkeji abụọ, viscosity nke mmiri mmiri ahụ na-abawanye nwayọ nwayọ, na-emepụta viscous colloid doro anya. Ngwaahịa 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 (ngwaahịa ụlọ ọrụ anyị bụ ogo 65 Celsius), viscosity ahụ na-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 omume nhazi 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. 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 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), 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. ]
4. Kedu otu esi ekpebi ịdị mma nke hydroxypropyl methylcellulose (HPMC) n'ụzọ dị mfe na n'ụzọ amamihe?
Azịza: (1) Ịcha ọcha: Ọ bụ ezie na ịcha ọcha enweghị ike ikpebi ma ọ dị mfe iji HPMC, ma ọ bụrụ 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. (2) Ịcha ọcha: Ịcha ọcha nke HPMC na-enwekarị 80 mesh na 100 mesh, 120 mesh dịkwa obere. Ọtụtụ HPMC emepụtara na Hebei bụ 80 mesh. Ka ịcha mma, n'ozuzu, ka mma. (3) Ịfefe ìhè: tinye hydroxypropyl methylcellulose (HPMC) n'ime mmiri iji mepụta colloid doro anya, ma lelee nnyefe ìhè ya. Ka ịcha ọkụ na-ebu ibu, ka mma, na-egosi na enweghị obere ihe na-agbaze na ya. . Ịfefe nke ihe ndị na-eme ka ọ dị kwụ ọtọ dị mma n'ozuzu, nke ihe ndị na-eme ka ọ dị kwụ ọtọ ka njọ, mana ọ pụtaghị na àgwà nke ihe ndị na-eme ka ọ dị kwụ ọtọ ka mma karịa nke ihe ndị na-eme ka ọ dị kwụ ọtọ, ọtụtụ ihe na-ekpebikwa ịdị mma ngwaahịa. (4) Ike ndọda kpọmkwem: Ka ịcha ike kpọmkwem buru ibu, otú ahụ ka ịcha arọ ka mma. Nkọwapụta ya buru ibu, n'ozuzu ya n'ihi na ọdịnaya nke otu hydroxypropyl dị na ya dị elu, na ọdịnaya nke otu hydroxypropyl dị elu, njigide mmiri ka mma.
5. Kedu ka hydroxypropyl methylcellulose (HPMC) dị na ntụ ntụ putty?
Azịza: Ọnụọgụ HPMC eji eme ihe n'ọrụ dị irè dịgasị iche dabere na ihu igwe, okpomọkụ, ịdị mma nke calcium ntụ mpaghara, usoro ntụ putty na "ịdị mma nke ndị ahịa chọrọ". N'ozuzu, n'etiti kilogram 4 na kilogram 5. Dịka ọmụmaatụ: ọtụtụ ntụ putty na Beijing bụ kilogram 5; ọtụtụ ntụ putty na Guizhou bụ kilogram 5 n'oge ọkọchị na kilogram 4.5 n'oge oyi; ọnụọgụ putty na Yunnan dị obere, n'ozuzu ya dị kilogram 3 ruo kilogram 4, wdg.
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, a na-achọkwa yuan 150,000 maka ojiji dị mfe. 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 gaghịzi adị mkpa.
7. 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. Nke nwere nnukwu viscosity nwere nchekwa mmiri ka mma, n'ụzọ dịtụ iche (ọ bụghị kpamkpam), nke nwere nnukwu viscosity ka mma iji na simenti.
8. 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.
9. 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.
10. HPMC bụ cellulose ether nke na-abụghị ionic, yabụ gịnị bụ non-ionic?
Azịza: N'ozuzu, ihe na-abụghị ion bụ ihe na-agaghị ion n'ime mmiri. Ionization na-ezo aka n'usoro e si kewaa 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 sodium ion (Na+) nke a na-ebugharị nke ọma na ion chloride (Cl) nke a na-enweta na-adịghị mma. Nke ahụ bụ, mgbe etinyere HPMC na mmiri, ọ gaghị ekewa n'ime ion charge, kama ọ dị adị n'ụdị molekul.
11. Kedu ihe metụtara okpomọkụ jel nke hydroxypropyl methylcellulose?
Azịza: Okpomọkụ gel nke HPMC metụtara ọdịnaya methoxy ya, ka ọdịnaya methoxy dị ala ↓, otú ahụ ka okpomọkụ gel na-adị elu ↑.
12. È nwere njikọ dị n'etiti ntụ ntụ putty na HPMC?
Azịza: Ntufu ntụ ntụ nke ntụ 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. Maka ihe ụfọdụ, biko lee ajụjụ nke 9.
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. 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.
16. 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.
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.
18. Kedu usoro ntụ ntụ putty maka mgbidi dị n'ime na n'èzí?
Azịza: Ntụ ntụ putty dị n'ime mgbidi: calcium dị arọ 800KG, calcium isi awọ 150KG (starch ether, akwụkwọ ndụ akwụkwọ ndụ dị ọcha, ala Pengrun, citric acid, polyacrylamide, wdg. enwere ike itinye ya nke ọma)
Ntụ ntụ putty dị n'èzí mgbidi: simenti 350KG calcium dị arọ 500KG quartz ájá 150KG ntụ latex 8-12KG cellulose ether 3KG starch ether eriri osisi 0.5KG 2KG
Oge ozi: Disemba-13-2022