1. Gịnị bụ isi ojiji nke hydroxypropyl methylcellulose?
A na-eji HPMC eme ihe n'ọtụtụ ebe na ihe owuwu ụlọ, mkpuchi, resins sịntetik, ceramik, ọgwụ, nri, textiles, ọrụ ugbo, ihe ịchọ mma, ụtaba na ụlọ ọrụ ndị ọzọ. Enwere ike kewaa HPMC na ọkwa ụlọ ọrụ mmepụta ihe, ọkwa nri na ọkwa ọgwụ dịka ojiji ya siri dị.
2. Enwere ọtụtụ ụdị hydroxypropyl methylcellulose. Kedu ihe dị iche n'etiti ha?
Enwere ike kewaa HPMC ka ọ bụrụ ụdị ngwa ngwa (akara suffix "S") na ụdị ọkụ-soluble. Ngwa ngwa ụdị ngwaahịa na-agbasa ngwa ngwa na mmiri oyi wee pụọ na mmiri. N'oge a, mmiri mmiri enweghị viscosity n'ihi na HPMC na-agbasasị na mmiri na-enweghị ezigbo ngwọta. Mgbe ihe dị ka (na-akpali akpali) nkeji 2, viscosity nke mmiri mmiri ji nwayọọ nwayọọ na-abawanye ma na-emepụta colloid viscous transperent. Ngwaahịa na-ekpo ọkụ na-ekpo ọkụ, na mmiri oyi, nwere ike ịgbasa ngwa ngwa na mmiri ọkụ ma pụọ na mmiri ọkụ. Mgbe okpomọkụ na-adaba na ọnọdụ okpomọkụ (dị ka gel okpomọkụ nke ngwaahịa), viscosity ji nwayọọ nwayọọ na-apụta ruo mgbe a na-emepụta colloid transperent na viscous.
3. Gịnị bụ ụzọ ngwọta hydroxypropyl methylcellulose?
1. Enwere ike ịgbakwunye ụdị niile na ihe site na ịgwakọta akọrọ;
2. Ọ dị mkpa ka agbakwunyere ya ozugbo na ngwọta mmiri mmiri nkịtị. Ọ kacha mma iji ụdị mgbasa mmiri oyi. Mgbe agbakwunyere, ọ na-erukarị eru n'ime 10-90 nkeji (kpali, nwuo, nwuo)
3. Maka ụdị ndị nkịtị, kpalie ma fesaa na mmiri ọkụ na mbụ, wee tinye mmiri oyi ka ọ gbazee mgbe edemede na jụrụ.
4. Ọ bụrụ na agglomeration ma ọ bụ wrapping eme n'oge mgbasa, ọ bụ n'ihi na-akpali akpali bụ ezughi oke ma ọ bụ ndị nkịtị nlereanya na-etinye ozugbo na mmiri oyi. N'ebe a, kpalie ngwa ngwa.
5. Ọ bụrụ na a na-emepụta egosipụta n'oge mgbasa, ha nwere ike ịhapụ maka awa 2-12 (oge a kapịrị ọnụ na-adabere na nkwụsi ike nke ngwọta) ma ọ bụ wepụ ya site na mmịpụta agụụ, pressurization, wdg, na ihe kwesịrị ekwesị nke defoaming gị n'ụlọnga nwekwara ike. gbakwunyere.
4. Olee otú ikpe àgwà nke hydroxypropyl methylcellulose mfe na kensinammuo?
1. Ọcha. Ọ bụ ezie na ọcha enweghị ike ikpebi ma HPMC ọ dị mma ma ọ bụ na ọ bụghị, na ịgbakwunye ndị na-acha ọcha ọcha n'oge usoro mmepụta ga-emetụta àgwà ya, ọtụtụ ngwaahịa dị mma nwere ezigbo ọcha.
2. Ịdị mma: Ịdị mma HPMC bụ n'ozuzu 80 ntupu na 100 ntupu, n'okpuru 120, nke kacha mma.
3. Light transmittance: HPMC na-etolite a transperent colloid na mmiri. Lee anya na-ebufe ọkụ. Ọ bụrụ na ị na-ebufe ọkụ na-ebuwanye ibu, ọ na-eme ka ọ dịkwuo mma, nke pụtara na ọ nwere obere ihe ndị na-adịghị edozi na ya. The vetikal reactor bụ n'ozuzu mma, na kehoraizin reactor ga emit ụfọdụ. Ma a pụghị ikwu na mmepụta nke kettles kwụ ọtọ dị mma karịa nke kettles kwụ ọtọ. Enwere ọtụtụ ihe na-ekpebi ogo ngwaahịa.
4. Specific gravity: Ka nnukwu ike ndọda dị, ka arọ ahụ ka mma. Ka nnukwu ike ndọda dị, ka ọdịnaya hydroxypropyl dị elu. N'ozuzu, ka ọdịnaya hydroxypropyl dị elu, ka mma na-ejigide mmiri.
5. Olee otú hydroxypropyl methylcellulose na-eji na putty ntụ ntụ?
Ọnụ ọgụgụ nke HPMC eji na ngwa n'ezie dịgasị iche site n'otu ebe ruo ebe, n'ozuzu na-ekwu okwu, ọ bụ n'etiti 4-5 kg, dabere na ihu igwe gburugburu ebe obibi, okpomọkụ, obodo calcium ash àgwà, putty ntụ ntụ usoro na ndị ahịa mma chọrọ.
6. Gịnị bụ viscosity nke hydroxypropyl methylcellulose?
Putty ntụ ntụ n'ozuzu na-efu RMB 100,000, ebe ngwa agha nwere ihe dị elu chọrọ. Ọ na-efu RMB 150,000 ka ọ dị mfe iji. Ọzọkwa, ọrụ kachasị mkpa nke HPMC bụ ijigide mmiri, na-esote thickening. Na ntụ ntụ putty, ọ bụrụhaala na njide mmiri dị mma na viscosity dị ala (7-8), ọ ga-ekwe omume. N'ezie, ka viscosity dị ukwuu, otú ahụ ka njigide mmiri dị mma. Mgbe viscosity dị n'elu 100,000, viscosity enwechaghị mmetụta na njide mmiri.
7. Gịnị bụ isi oru egosi hydroxypropyl methylcellulose?
Hydroxypropyl ọdịnaya
Methyl ọdịnaya
viscosity
Ash
akọrọ arọ ọnwụ
8. Kedu ihe bụ isi akụrụngwa nke hydroxypropyl methylcellulose?
Ihe bụ isi akụrụngwa nke HPMC: owu a nụchara anụcha, methyl chloride, propylene oxide, akụrụngwa ndị ọzọ, soda caustic, na toluene acid.
9. Ngwa na isi ọrụ nke hydroxypropyl methylcellulose na putty ntụ ntụ, ọ bụ chemical?
Na ntụ ntụ putty, ọ na-arụ ọrụ atọ dị mkpa: ịgbakọ, njigide mmiri na iwu ụlọ. Ịba ụba nwere ike ime ka cellulose sie ike ma rụọ ọrụ nkwụsịtụ, na-edobe ihe ngwọta ahụ n'otu elu na ala na igbochi ịda mbà n'obi. Njide mmiri: Mee ka ntụ ntụ putty kpoo nwayọọ nwayọọ ma nyere calcium isi awọ aka imeghachi omume n'okpuru mmiri. Ịrụ ọrụ: Cellulose nwere mmetụta na-egbuke egbuke, nke na-eme ka uzuzu putty nwee ezigbo ọrụ. HPMC anaghị eso na mmeghachi omume kemịkalụ ọ bụla yana naanị na-arụ ọrụ nkwado.
10. Hydroxypropyl methylcellulose bụ ether cellulose na-abụghị ionic, ya mere gịnị bụ ụdị na-abụghị ionic?
N'ikwu okwu n'ozuzu, ihe inert adịghị etinye aka na mmeghachi omume kemịkal.
CMC (carboxymethylcellulose) bụ cellulose cationic na ọ ga-aghọ tofu dregs mgbe ekpughere ya na uyi calcium.
11. Gịnị bụ gel okpomọkụ nke hydroxypropyl methylcellulose metụtara?
Okpomọkụ gel nke HPMC metụtara ọdịnaya metoxyl ya. Ọdịnaya methoxyl dị ala, ọ na-abawanye okpomọkụ gel.
12. Enwere mmekọrịta ọ bụla n'etiti putty ntụ ntụ na hydroxypropyl methylcellulose?
Nke a dị mkpa! HPMC enweghị njide mmiri na-adịghị mma, ọ ga-eme ka ntụ ntụ.
13. Kedu ihe dị iche na usoro mmepụta n'etiti ngwọta mmiri oyi na mmiri ọkụ nke hydroxypropyl methylcellulose?
Ụdị mmiri oyi na-agbaze HPMC na-agbasa ngwa ngwa na mmiri oyi mgbe a gwọchara ya na glioxal, mana ọ naghị agbaze n'ezie. Viscosity na-ebili, ya bụ, ọ na-agbaze. Ụdị agbaze na-ekpo ọkụ anaghị agwọ ya na glycoxal. Glyoxal buru ibu ma na-agbasa ngwa ngwa, mana ọ nwere viscosity dị nwayọ na obere olu, yana ọzọ.
14. Gịnị bụ isi nke hydroxypropyl methylcellulose?
A na-eme HPMC site na usoro mgbaze na toluene na mmanya isopropyl dị ka ihe mgbaze. Ọ bụrụ na a saghị ya nke ọma, a ga-enwe isi ísì. (Neutralization na recycling bụ isi usoro maka isi)
15. Kedu otu esi ahọrọ hydroxypropyl methylcellulose kwesịrị ekwesị maka ojiji dị iche iche?
Putty ntụ ntụ: mmiri dị elu chọrọ na ihe eji arụ ụlọ dị mma (akara akwadoro: 7010N)
Ngwa ngwa sitere na ciment nkịtị: njide mmiri dị elu, nguzogide okpomọkụ dị elu, viscosity ozugbo (ọkwa akwadoro: HPK100M)
Ngwa nrapado ụlọ: ngwaahịa ngwa ngwa, nnukwu viscosity. (Akara akwadoro: HPK200MS)
Ngwa ngwa gypsum: njide mmiri dị elu, viscosity dị obere, viscosity ozugbo (ọkwa akwadoro: HPK600M)
16. Gịnị bụ aha ọzọ nke hydroxypropyl methylcellulose?
A na-akpọkwa HPMC ma ọ bụ MHPC dị ka hydroxypropyl methylcellulose na hydroxypropyl methylcellulose ether.
17. Ngwa nke hydroxypropyl methylcellulose na putty ntụ ntụ. Kedu ihe na-eme putty ntụ ntụ na ụfụfụ?
HPMC na-arụ ọrụ atọ dị mkpa na ntụ ntụ putty: ịgbakọ, njigide mmiri na ihe owuwu. Ihe kpatara afụ bụ:
1. Tinye oke mmiri.
2. Ọ bụrụ na ala adịghị akpọnwụ, ịcha akwa oyi akwa n'elu ga-eme ka ọnya dị mfe.
18. Kedu ihe dị iche n'etiti hydroxypropyl methylcellulose na MC:
A na-eme MC, methyl cellulose site na owu a nụchara anụcha mgbe ọgwụgwọ alkali gasịrị, na-eji methane chloride dị ka onye na-ahụ maka etherifying, na usoro mmeghachi omume iji mepụta cellulose ether. Ogo ngbanwe nke izugbe bụ 1.6-2.0, na solubility nke ogo dị iche iche nke nnọchi dịkwa iche. Ọ bụ cellulose ether na-abụghị ionic.
(1) Njide mmiri nke methylcellulose na-adabere na ego mgbakwunye ya, viscosity, urughuru mma na mgbasa ozi. N'ikwu okwu n'ozuzu, ego mgbakwunye dị ukwuu, ịdị mma dị ntakịrị, viscosity dị elu, na njide mmiri dị elu. Ọnụ ego mgbakwunye ahụ nwere mmetụta dị ukwuu na njide mmiri, na viscosity enweghị ihe jikọrọ ya na ọnụ ọgụgụ njide mmiri. The mgbasa ọnụego tumadi dabere na elu mgbanwe ogo na urughuru fineness nke cellulose ahụ. N'ime cellulose ethers dị n'elu, methylcellulose na hydroxypropylmethylcellulose nwere ọnụ ọgụgụ njide mmiri dị elu.
(2) Methyl cellulose nwere ike gbazere na mmiri oyi, mana ọ ga-esiri ike ịgbaze na mmiri ọkụ. Ngwọta mmiri ya kwụsiri ike n'ogo pH = 3-12, ma nwee ndakọrịta dị mma na starch na ọtụtụ surfactants. Mgbe okpomọkụ ahụ ruru gel Mgbe ikuku gelation na-abawanye, gelation ga-eme.
(3) Mgbanwe okpomọkụ ga-emetụta oke njide mmiri nke methylcellulose. N'ozuzu, ka okpomọkụ dị elu, na-akawanye njọ nke njide mmiri. Ọ bụrụ na okpomọkụ nke ngwa agha gafere ogo 40, njide mmiri nke methylcellulose ga-akawanye njọ nke ukwuu, na-emetụta nrụnye ngwa ngwa.
(4) Methylcellulose nwere mmetụta dị ukwuu n'iwu na nchikota nke ngwa agha. Adhesion ebe a na-ezo aka na adhesion chere n'etiti ngwa ngwa onye ọrụ na ihe ndabere mgbidi, ya bụ, nkwụsị nke ngwa agha. Nchikota dị elu, nkwụsị nke mgbochi nke ngwa agha dị elu, na ike nke ndị ọrụ na-achọ n'oge a na-eji ya dịkwa elu, ya mere arụ ọrụ nke ngwa agha adịghị mma.
Oge nzipu: Jan-31-2024