1. Gịnị bụ isi ojiji nke hydroxypropyl methyl cellulose?
HPMCa na-ejikarị eme ihe na ihe owuwu ụlọ, mkpuchi, resins synthetic, ceramics, nkà mmụta ọgwụ, nri, textile, ugbo, ịchọ mma, ụtaba na ụlọ ọrụ ndị ọzọ. Enwere ike kewaa HPMC n'ime ọkwa ụlọ ọrụ mmepụta ihe, ọkwa nri na ọkwa ahụike dịka iji ya si dị.
2. Hydroxypropyl methyl cellulose na-ekewa n'ime ụdị dị iche iche, gịnị bụ ọdịiche dị n'etiti ha?
Enwere ike kewaa HPMC n'ime ngwa ngwa (akara suffix "S") na soluble na-ekpo ọkụ, ngwa ngwa ngwa ngwa, na mmiri oyi na-agbasa ngwa ngwa, na-apụ n'anya na mmiri, n'oge a, mmiri mmiri enweghị viscosity, n'ihi na HPMC na-agbasasị na mmiri, ọ dịghị ezigbo mgbasa. Ihe dị ka nkeji 2, viscosity nke mmiri mmiri na-eji nwayọọ nwayọọ na-abawanye, na-eme gel doro anya ma na-adọrọ adọrọ. Okpomọkụ soluble ngwaahịa, clumped na mmiri oyi, nwere ike ngwa ngwa gbasasịa na mmiri ọkụ, na-apụ n'anya na mmiri ọkụ, dị ka okpomọkụ tụlee na a ụfọdụ okpomọkụ (dị ka gel okpomọkụ nke ngwaahịa), viscosity ji nwayọọ nwayọọ na-apụta, ruo mgbe e guzobere transperent viscous colloid.
3. Kedu ka esi achọpụta àgwà hydroxypropyl methyl cellulose dị mfe na nke uche?
1) Ọcha, ọ bụ ezie na ịcha ọcha enweghị ike ikpebi ma HPMC ọ dị mma, ma ọ bụrụ na etinye ya na usoro mmepụta ihe na-acha ọcha, ga-emetụta àgwà ya, ma, ngwaahịa ndị dị mma na-abụkarị ndị ọcha dị mma.
2) ịdị mma: ịdị mma HPMC bụ ntupu 80 na ntupu 100, ebumnuche 120 pere mpe, nke kacha mma.
3) ìhè transmittance: HPMC na mmiri, na-akpụ a transperent colloid, na-ahụ ya ìhè transmittance, na ibu penetrability nke ọma, na-akọwa insoluble obere n'ime, vetikal mmeghachi omume kettle site degrees n'ozuzu ezi, ga-eziga ụfọdụ nke kehoraizin mmeghachi omume kettle, ma enweghị ike ịkọwa na vetikal ketulu mmepụta mma dị mma karịa ụgha ketulu mmepụta, e nwere ọtụtụ ihe na-ekpebi ngwaahịa àgwà.
4) nha: oke nha, nke dị arọ karị, karịa isi, n'ozuzu n'ihi nnukwu ọdịnaya nke hydroxypropyl n'ime, ọdịnaya hydroxypropyl dị elu, njide mmiri dị mma.
4. Kedu usoro mgbasa nke hydroxypropyl methyl cellulose?
1) Enwere ike ịgbakwunye ụdị niile n'ime ihe site na usoro ngwakọta akọrọ;
2) Mkpa ka etinye ya ozugbo na mmiri mmiri ọkụ nkịtị, ọ ka mma iji mgbasa mmiri oyi, mgbe ị na-agbakwunye n'ozuzu na 10-90 nkeji ka ọ gbasie ike (ịkpali nwuo)
3) Enwere ike ịgbaze ụdị nkịtị mgbe agwakọta ma gbasaa na mmiri ọkụ na-agbakwunye mmiri oyi mgbe ọ kpalitere ma mee ka ọ dị jụụ;
4) Mgbe dissolving, ma ọ bụrụ na onu nke agglomerating emee, ọ bụ n'ihi na-akpali akpali ezughị ma ọ bụ ndị nkịtị nlereanya na-etinye ozugbo n'ime mmiri oyi. N'oge a, a ga-akpali ya ngwa ngwa.
5) Ọ bụrụ na afụ na-eme n'oge mgbasa, enwere ike iwepụ ha site na iguzo maka awa 2-12 (oge a kapịrị ọnụ na-adabere na nkwụsi ike nke ngwọta) ma ọ bụ site na ịmegharị na nrụgide, ma ọ bụ site n'ịgbakwụnye ego kwesịrị ekwesị nke onye na-emepụta ihe.
5 hydroxypropyl methyl cellulose na olu nke putty ntụ ntụ?
HPMC n'ezie ngwa nke ego, site ihu igwe gburugburu ebe obibi, okpomọkụ, mpaghara isi awọ calcium àgwà, putty ntụ ntụ usoro na ndị ahịa chọrọ nke dị iche iche àgwà, na e nwere ndịiche gburugburu, n'ozuzu n'etiti 4-5 kilogram.
6. Kedu ihe bụ viscosity kwesịrị ekwesị nke hydroxypropyl methyl cellulose?
Putty ntụ ntụ bụ n'ozuzu 100000 nwere ike, ngwa agha chọrọ dị elu, na 150000 dị mma, na HPMC bụ ọrụ dị mkpa karị bụ njide mmiri, na-esote thickening. Na ntụ ntụ putty, ọ bụrụhaala na njide mmiri dị mma, viscosity dị ala (7-8), ọ ga-ekwe omume, n'ezie, viscosity dị ukwuu, njide mmiri dị n'akụkụ dị mma, mgbe viscosity karịrị 100,000, viscosity nke njide mmiri adịghị ukwuu.
7. Kedu ihe bụ isi akụrụngwa nke hydroxypropyl methyl cellulose?
HPMCisi akụrụngwa: owu a nụchara anụcha, chloromethane, propylene oxide, akụrụngwa ndị ọzọ, mbadamba alkali, acid toluene.
8. Hydroxypropyl methyl cellulose na ngwa nke putty ntụ ntụ, isi ọrụ, ma chemical?
Na putty ntụ ntụ, ndina, njigide mmiri na iwu nke ọrụ atọ. N'ịdị arọ, cellulose nwere ike ịgbatị na nkwusioru, nke mere na ngwọta ahụ na-anọgide na-edozi elu na ala ọrụ nke mgbochi-asọpụta. Njide mmiri: mee ka putty ntụ ntụ kpoo nwayọọ nwayọọ, inyeaka calcium isi awọ n'omume mmeghachi omume mmiri. Ewu: cellulose lubrication, nwere ike ime ka putty ntụ ntụ nwere ihe owuwu dị mma. HPMC anaghị eso na mmeghachi omume kemịkalụ ọ bụla, mana ọ na-arụ naanị ọrụ nkwado.
9 .hydroxypropyl methyl cellulose bụ ndị na-abụghị ionic cellulose ether, ya mere, ihe na-abụghị ionic?
N'okwu ndị nkịtị, bekee adịghị etinye aka na mmeghachi omume kemịkal.
CMC (carboxymethyl cellulose) bụ cationic cellulose, ya mere izute calcium isi awọ ga-aghọ agwa curd fọdụrụnụ.
10. Gịnị bụ isi oru egosi hydroxypropyl methyl cellulose?
Hydroxypropyl ọdịnaya
Methyl ọdịnaya
viscosity
ntu
Akọrọ arọ ọnwụ
11. Kedu ihe metụtara gel okpomọkụ nke hydroxypropyl methyl cellulose?
The gel okpomọkụ nke HPMC metụtara methoxyl ọdịnaya, ala methoxyl ọdịnaya, na elu jel okpomọkụ.
12 putty ntụ ntụ dobe ntụ ntụ na mmekọrịta hydroxypropyl methyl cellulose?
Ọ bụrụ na HPMC adịghị mma njide mmiri, ga-eme ka ntụ ntụ.
13 hydroxypropyl methyl cellulose na ngwa nke putty ntụ ntụ, putty ntụ ntụ afụ kedu ihe kpatara ya?
HPMC n'ime ntụ ntụ putty, ịgbara mmiri, njigide mmiri na ịrụ ọrụ atọ, ihe kpatara afụ:
1. ) A na-agbakwunye oke mmiri.
2.) Ala oyi akwa adịghị akọrọ, wee kpochaa akwa oyi akwa na ya, nke dịkwa mfe ọnya.
14. Kedu ihe dị iche n'etiti mmiri oyi-mmiri ngwa ngwa-soluble na okpomọkụ-soluble hydroxypropyl methyl cellulose na mmepụta usoro?
HPMC mmiri oyi ozugbo ngwọta ụdị bụ mgbe glioxal n'elu ọgwụgwọ, tinye na mmiri oyi ngwa ngwa gbasasịa, ma ọ bụghị n'ezie etisasịwo, viscosity elu, na-etisasịwo. Eji glycoxal gwọọ ụdị thermosoluble n'elu. Ọnụ ọgụgụ nke glycoxal buru ibu, mgbasa ozi na-adị ngwa ngwa, ma viscosity na-adị ngwa ngwa, ego ahụ dị ntakịrị, n'ụzọ megidere ya.
15. Kedu ihe ọ bụ maka isi ísì hydroxypropyl methyl cellulose?
HPMC emepụtara site na usoro mgbaze bụ nke toluene na mmanya isopropyl. Ọ bụrụ na ịsa ahụ adịghị mma nke ukwuu, a ga-enwe ụtọ fọdụrụnụ. (Nweghachi nke ịnọpụ iche bụ usoro isi maka isi)
16. Kedu otu esi ahọrọ hydroxypropyl methyl cellulose kwesịrị ekwesị maka ojiji dị iche iche?
Putty ntụ ntụ: mmiri dị elu chọrọ, ndakọrịta ihe owuwu dị mma (ọkwa akwadoro: 75AX100000)
Ngwa ngwa sitere na ciment nkịtị: njigide mmiri dị elu, nguzogide okpomọkụ dị elu, viscosity ozugbo (ọkwa akwadoro: 75AX150000)
Ngwa nke gluu ụlọ: ngwaahịa ngwa ngwa, nnukwu viscosity. ( Nọmba akara akwadoro: 75AX200000S)
Ngwa ngwa gypsum: njide mmiri dị elu, ọkara na viscosity dị ala, viscosity ozugbo (ọkwa akwadoro: 75AX75000)
17. Gịnị bụ aha otutu maka hydroxypropyl methyl cellulose?
HPMC ma ọ bụ MHPC aha ya bụ hydroxypropyl methyl cellulose, cellulose hydroxypropyl methyl ether.
18. Kedu ihe dị iche n'etiti hydroxypropyl methyl cellulose naMC?
MC bụ methyl cellulose, a nụchara anụcha owu mgbe alkali ọgwụgwọ, methane chloride dị ka etherifying gị n'ụlọnga, site a usoro mmeghachi omume na mere nke cellulose ether, n'ozuzu ogo nke nnọchi bụ 1.6-2.0, dị iche iche ogo nke nnọchi solubility dịkwa iche iche, bụ nke na-abụghị ionic cellulose ether.
(1) Njide mmiri nke methyl cellulose na-adabere na ego mgbakwunye ya, viscosity, urughuru mma na mgbasa ozi. N'ozuzu, ihe mgbakwunye ego buru ibu, ịdị mma dị ntakịrị, viscosity dị ukwuu, ọnụ ọgụgụ njide mmiri dị elu, ego mgbakwunye nwere mmetụta dị ukwuu na njide mmiri, viscosity na njigide mmiri adịghị ala karịa mmekọrịta ahụ, ọnụego mgbasa ozi na-adabere n'elu elu mgbanwe ogo na urughuru fineness nke cellulose ahụ. Methyl cellulose na hydroxypropyl methyl cellulose dị n'elu ọtụtụ cellulose ethers nwere ọnụ ọgụgụ dị elu nke njide mmiri.
(2) Methyl cellulose nwere ike igbari na mmiri oyi, mmiri ọkụ ga-esi ike igbari, mmiri mmiri ya ngwọta na pH = 3-12 nso bụ nnọọ kwụsiri ike, na starch, wdg, na ọtụtụ surfactants nwere ezigbo ndakọrịta, mgbe okpomọkụ rutere gelation okpomọkụ, a ga-enwe gelation phenomenon.
(3) Mgbanwe nke okpomọkụ ga-emetụta oke njide mmiri nke methyl cellulose, n'ozuzu, elu okpomọkụ, na-akawanye njọ njide mmiri. Ọ bụrụ na okpomọkụ nke ngwa agha gafere ogo 40, njigide mmiri nke methyl cellulose ga-akawanye njọ, nke na-emetụta ike nke ngwa agha.
(4)Methyl cellulosenwere mmetụta doro anya na constructability na adhesion nke ngwa agha. Adhesion ebe a na-ezo aka na ike nrapado chere n'etiti ngwá ọrụ na mgbidi mgbidi site na onye ọrụ, ya bụ, nkwụsị nke ngwa agha. Adhesion buru ibu, nkwụsị nke mgbochi nke ngwa agha buru ibu, ike nke ndị ọrụ chọrọ na usoro iji mee ihe dịkwa ukwuu, na-ewu ngwa agha adịghị mma.
Oge nzipu: Eprel-25-2024