1, kedu ihe bụ isi ojiji nke hydroxypropyl methyl cellulose (HPMC)?
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 ikewa HPMC n'ime: ọkwa ihe owuwu, ọkwa nri na ọkwa ahụike site na iji. Ka ọ dị ugbu a, ihe ka ọtụtụ n'ime ụlọ ihe owuwu ụlọ, na ọkwa ihe owuwu, ntinye ntụ ntụ nke putty buru ibu, ihe dịka 90% na-eji ntụ ntụ eme ihe, ndị ọzọ na-eji ciment mortar na gluu.
2, hydroxypropyl methyl cellulose (HPMC) kewara n'ime ọtụtụ, kedu ihe dị iche na ojiji ya?
HPMC nwere ike kewara n'ime ngwa ngwa na-ekpo ọkụ ụdị ngwọta, ngwa ngwa ngwaahịa, na mmiri oyi ngwa ngwa chụsasịrị, na-apụ n'anya na mmiri, n'oge a mmiri mmiri enweghị viscosity, n'ihi na HPMC bụ nnọọ chụsasịrị na mmiri, ọ dịghị ezigbo mgbasa. Ihe dị ka nkeji 2, viscosity nke mmiri mmiri na-eji nwayọọ nwayọọ na-abawanye, na-eme ka colloid viscous na-egbuke egbuke. Ngwaahịa na-ekpo ọkụ na-ekpo ọkụ, na mmiri oyi, nwere ike ịgbasa ngwa ngwa na mmiri ọkụ, na-apụ n'anya na mmiri ọkụ, mgbe okpomọkụ na-adaba na okpomọkụ ụfọdụ, viscosity ji nwayọọ nwayọọ na-apụta, ruo mgbe e guzobere transperent viscous colloid. Enwere ike iji ngwọta na-ekpo ọkụ na-eji ntụ ntụ na ngwa ngwa, na gluu mmiri mmiri na agba, a ga-enwe ihe ngosi otu, enweghị ike iji ya. Ihe Nlereanya Ngwa ngwa ngwa ngwa, ụdị ngwa ngwa dị ole na ole, na ntụ ntụ na ngwa ụmụaka na-agwụ ike, na n'ime gluu mmiri na mkpuchi, ha niile nwere ike iji, na-enweghị ihe mgbochi.
3, hydroxypropyl methyl cellulose (HPMC) solubility ụzọ nwere ndị?
– A: Hot water dissolution usoro: n'ihi na HPMC adịghị etisasịwo na mmiri ọkụ, otú HPMC mbụ nwere ike evenly chụsasịrị na mmiri ọkụ, mgbe ahụ ngwa ngwa agbazekwa mgbe obi jụrụ, abụọ ahụkarị ụzọ kọwara dị ka ndị a: 1), na akpa n'ime akpa. ego mmiri ọkụ chọrọ, ma kpoo ọkụ ruo ihe dịka 70 ℃. Nke nta nke nta tinye hydroxypropyl methylcellulose n'okpuru nwayọọ edemede, HPMC malitere ise n'elu n'elu mmiri, wee jiri nwayọọ nwayọọ na-etolite a slurry, n'okpuru edemede jụrụ slurry. 2), tinye ego achọrọ nke 1/3 ma ọ bụ 2/3 n'ime akpa ahụ, na ikpo ọkụ ruo 70 ℃, dịka usoro nke 1 si dị), mgbasa HPMC, nkwadebe nke slurry mmiri ọkụ; Mgbe ahụ tinye ihe fọdụrụ nke mmiri oyi na slurry na-ekpo ọkụ, kpalie ma mee ka ngwakọta ahụ dị jụụ. Usoro ngwakọta ntụ ntụ: HPMC ntụ ntụ na ọnụ ọgụgụ buru ibu nke ihe ndị ọzọ na-eme ntụ ntụ, nke ọma na-agwakọta ya na blender, mgbe ị gbakwunyere mmiri ka ọ gbazee, mgbe ahụ HPMC nwere ike igbari n'oge a, ma ọ bụghị nchikota, n'ihi na obere akụkụ ọ bụla, naanị obere ntụ ntụ HPMC. , mmiri ga-agbaze ozugbo. - Putty ntụ ntụ na ụlọ ọrụ mmepụta ngwa agha na-eji usoro a. A na-eji Hydroxypropyl METHYL cellulose (HPMC) dị ka ihe na-eme ka ọ dị arọ na onye na-ejide mmiri na ngwa ngwa putty powder.
4, kedu ka ọ dị mfe na nghọta iji chọpụta ogo hydroxypropyl methyl cellulose (HPMC)?
- Azịza: (1) ọcha: ọ bụ ezie na ịcha ọcha enweghị ike ikpebi ma HPMC ọ dị mma iji, ma ọ bụrụ na agbakwunyere ya na usoro mmepụta nke onye na-acha ọcha, ga-emetụta àgwà ya. Otú ọ dị, ngwaahịa ndị dị mma na-abụkarị ndị ọcha. (2) fineness: HPMC fineness n'ozuzu 80 ntupu na 100 ntupu, 120 obere nzube, Hebei HPMC ukwuu n'ime 80 ntupu, na finer na fineness, n'ozuzu mma. (3) nnyefe: na hydroxypropyl methyl cellulose (HPMC) n'ime mmiri, e guzobere a transperent colloid, na-ahụ ya transmittance, ukwuu na transmittance, mma, ndị na-erughị insoluble ihe n'ime. The permeability nke vetikal reactor bụ n'ozuzu ezi, kehoraizin reactor bụ njọ, ma enweghị ike igosi na àgwà nke vetikal reactor mmepụta dị mma karịa nke kehoraizin reactor mmepụta, ngwaahịa àgwà na-ekpebi ọtụtụ ihe. (4) ike ndọda pụrụ iche: ka nnukwu ike ndọda dị, otú ahụ ka ịdị arọ ga-aka mma. Karia ihe dị ịrịba ama, n'ozuzu n'ihi na ọdịnaya nke hydroxypropyl dị elu, ọdịnaya hydroxypropyl dị elu, mgbe ahụ, njigide mmiri ka mma.
5, hydroxypropyl methyl cellulose (HPMC) na ego nke putty ntụ ntụ?
– Azịza: HPMC na n'ezie ngwa nke onunu ogwu, site ihu igwe gburugburu ebe obibi, okpomọkụ, obodo calcium ash àgwà, putty ntụ ntụ usoro na "ndị ahịa chọrọ nke àgwà", na e nwere dị iche iche. N'ikwu okwu n'ozuzu, mmiri - ọgwụ putty na-eguzogide ọgwụ na 4 kg - 5 n'arọ n'etiti. Dịka ọmụmaatụ: Beijing putty ntụ ntụ, na-etinyekarị 5 n'arọ; Na Guizhou, ọtụtụ n'ime ha dị kilogram 5 n'oge ọkọchị na kilogram 4.5 n'oge oyi. Ọnụego Yunnan dị obere, n'ozuzu 3 n'arọ -4 n'arọ na ihe ndị ọzọ. Na usoro ọgwụgwọ HPMC na 821 putty bụ n'ozuzu na 2 ~ 3 n'arọ.
6, hydroxypropyl methyl cellulose (HPMC) ole viscosity kwesịrị ekwesị?
– Azịza:-na-agwụ ike na nwata ntụ ntụ GENERAL 100 puku OK, ihe a chọrọ na ngwa agha dị ụfọdụ ogologo, chọrọ 150 puku ike iji. Ọzọkwa, ọrụ kachasị mkpa nke HPMC bụ njide mmiri, na-esote thickening. Na ntụ ntụ putty, ọ bụrụhaala na njigide mmiri dị mma, viscosity dị ala (7-80 puku), ọ ga-ekwe omume, n'ezie, viscosity dị ukwuu, njigide mmiri dị n'akụkụ dị mma, mgbe viscosity karịrị karịa. 100 puku, viscosity nwere obere mmetụta na njide mmiri.
7, hydroxypropyl methyl cellulose (HPMC) ihe bụ isi oru egosi?
A: Ọdịnaya Hydroxypropyl na viscosity, nke bụ ihe ọtụtụ ndị ọrụ na-eche banyere ya. Ọdịnaya Hydroxypropyl dị elu, njide mmiri na-adịkarị mma. Viscosity, mmiri njigide, ikwu (ma ọ bụghị zuru oke) dịkwa mma, na viscosity, na ciment ngwa agha mma na-eji ụfọdụ.
8, hydroxypropyl methyl cellulose (HPMC) ihe bụ isi akụrụngwa bụ gịnị?
- Azịza: hydroxypropyl methyl cellulose (HPMC) nke isi akụrụngwa: owu a nụchara anụcha, chloromethane, propylene oxide, ndị ọzọ akụrụngwa nwere, mbadamba alkali, acid, toluene, isopropyl mmanya, wdg.
9, HPMC na ngwa nke putty ntụ ntụ, gịnị bụ ọrụ bụ isi, ma ọ bụ kemistri?
HPMC na putty powder, ndim, njigide mmiri na iwu nke oru ato. Thicking: Cellulose nwere ike thickened na-egwu a nkwusioru, nke mere na ihe ngwọta ịnọgide na-enwe edo elu na ala otu ọrụ, mgbochi eruba nghọta. Njide mmiri: mee ka putty ntụ ntụ kpoo nwayọọ nwayọọ, ihe enyemaka ash calcium mmeghachi omume n'okpuru mmiri. Mwube: Cellulose nwere mmetụta lubricating, nwere ike ime ka putty ntụ ntụ nwere ihe owuwu dị mma. HPMC anaghị eso na mmeghachi omume kemịkalụ ọ bụla, naanị na-arụ ọrụ inyeaka. Putty ntụ ntụ agbakwunyere mmiri, na mgbidi, bụ mmeghachi omume kemịkalụ, n'ihi na e nwere ọgbọ ọhụrụ ihe, putty ntụ ntụ na mgbidi gbadaa site na mgbidi, ala n'ime ntụ ntụ, na mgbe ahụ na-eji, ọ dịghịzi, n'ihi na kpụrụ a. ihe ọhụrụ (calcium carbonate). Isi ihe dị na ntụ ntụ ntụ ntụ ntụ bụ: Ca (OH) 2, CaO na obere ego CaCO3 ngwakọta, CaO + H2O = Ca (OH) 2 - Ca (OH) 2 + CO2 = CaCO3↓ + H2O calcium ash na mmiri. na ikuku n'okpuru omume nke CO2, e guzobere calcium carbonate, na HPMC naanị mmiri njide, inyeaka calcium ash mma mmeghachi omume, ya onwe-adịghị ekere òkè ọ bụla mmeghachi omume.
10, HPMC na-abụghị ionic cellulose ether, kedu ihe na-abụghị ionic?
A: N'ikwu okwu n'ozuzu, nonionic bụ ihe dị na mmiri nke na-adịghị ionize. Ionization bụ usoro nke na-ekewa electrolyte n'ime ion chaja na-ebugharị n'efu n'ime ihe mgbaze, dị ka mmiri ma ọ bụ mmanya. Dịka ọmụmaatụ, sodium chloride (NaCl), nnu anyị na-eri kwa ụbọchị, na-agbaze n'ime mmiri na ionizes iji mepụta sodium ion (Na+) na-enweghị ihe ọ bụla na-akwụ ụgwọ nke ọma na ion chloride (Cl) nke na-adịghị mma. N'ikwu ya n'ụzọ ọzọ, HPMC dị na mmiri anaghị ekewa n'ime ion ebubo, kama ọ dị dị ka ụmụ irighiri ihe.
11, hydroxypropyl methylcellulose gel okpomọkụ na ihe metụtara?
– Azịza: The jel okpomọkụ nke HPMC metụtara ya methoxy ọdịnaya. Ọdịnaya methoxy dị ala, ọ na-abawanye okpomọkụ gel.
12. Enwere mmekọrịta dị n'etiti putty ntụ ntụ na HPMC?
– Azịza: putty ntụ ntụ ntụ na àgwà nke calcium nwere nnukwu mmekọrịta, na HPMC enweghị oke mmekọrịta. Ọdịnaya calcium dị ala nke calcium na oke nke CaO, Ca (OH) 2 na calcium ash adịghị mma, ga-eme ka ntụ ntụ ntụ. Ọ bụrụ na ọ nwere ihe jikọrọ ya na HPMC, mgbe ahụ, njide mmiri nke HPMC adịghị mma, ọ ga-emekwa ka ntụ ntụ. Maka ihe kpatara ya, biko hụ ajụjụ 9
13, hydroxypropyl methylcellulose mmiri oyi soluble ụdị na-ekpo ọkụ soluble ụdị na mmepụta usoro, kedu ihe dị iche?
– A: HPMC oyi mmiri soluble ụdị bụ mgbe glioxal n'elu ọgwụgwọ, tinye na mmiri oyi ngwa ngwa gbasasịa, ma ọ bụghị n'ezie etisasịwo, viscosity elu, na-etisasịwo. Ejighị glycoxal agwọ ụdị ọkụ-soluble n'elu. Olu nke glioxal buru ibu, mgbasa ozi na-adị ngwa ngwa, ma viscosity dị ngwa ngwa, olu dị ntakịrị, n'ụzọ megidere ya.
14, hydroxypropyl methyl cellulose (HPMC) nwere isi nke ihe na-eme?
- Azịza: HPMC emepụtara site na usoro mgbaze bụ nke toluene na mmanya isopropyl dị ka ihe mgbaze. Ọ bụrụ na ịsa ahụ adịghị mma nke ukwuu, a ga-enwe ụtọ fọdụrụnụ.
15, ojiji dị iche iche, otu esi ahọrọ ezigbo hydroxypropyl methyl cellulose (HPMC)?
– Azịza: Ngwa nke putty ntụ ntụ: ihe a chọrọ bụ ala, viscosity bụ 100 puku, ọ dị mma, ihe dị mkpa bụ idobe mmiri ka mma. Ngwa ngwa ngwa: ihe achọrọ dị elu, ihe a chọrọ bụ viscosity dị elu, 150 puku kwesịrị ka mma. Ngwa nke gluu: mkpa ngwa ngwa ngwaahịa, elu viscosity.
16, hydroxypropyl methylcellulose kedu utu aha?
A: Hydroxypropyl Methyl Cellulose, Bekee: Hydroxypropyl Methyl Cellulose abbreviation: HPMC ma ọ bụ MHPC utu aha: Hydroxypropyl Methyl Cellulose; Cellulose hydroxypropyl methyl ether; Cellulose Hypromellose, 2-hydroxypropyl methyl cellulose ether. Cellulose hydroxypropyl Methyl ether Hyprolose.
17, HPMC na ngwa nke putty powder, putty powder afụ kedu ihe kpatara ya?
HPMC na putty powder, ndim, njigide mmiri na iwu nke oru ato. Anaghị esonye na mmeghachi omume ọ bụla. Ihe kpatara egosipụta: 1, mmiri na-etinye oke. 2, ala adịghị akọrọ, n'elu na scrape a oyi akwa, dịkwa mfe afụ.
18. Putty ntụ ntụ usoro maka ime na mpụta mgbidi?
- Azịza: ntụ ntụ na-eguzogide mmiri maka mgbidi dị n'ime: 750 ~ 850KG nke calcium dị arọ, 150 ~ 250KG nke calcium isi awọ, 4 ~ 5KG nke cellulose ether, na 1 ~ 2KG nke polyvinyl mmanya ntụ ntụ nwere ike ịgbakwunye nke ọma; Mpụga mgbidi putty ntụ ntụ: ciment ọcha 350KG, calcium arọ 500-550kg, isi awọ calcium 100-150kg, latex ntụ ntụ 8-12kg, cellulose ether 5KG, osisi fiber 3KG.
19. Kedu ihe dị iche n'etiti HPMC na MC?
- MC maka methyl cellulose, bụ owu a nụchara anụcha mgbe ọgwụgwọ alkali gasịrị, yana methane chloride dị ka onye na-ahụ maka etherification, site na usoro mmeghachi omume na cellulose ether. N'ozuzu, ogo nke nnọchi bụ 1.6 ~ 2.0, na solubility dịgasị iche na ogo nke nnọchi. Ọ bụ cellulose ether na-abụghị ionic.
(1) Njide mmiri nke methyl cellulose na-adabere na ego nke mgbakwunye ya, viscosity, urughuru mma na mgbasa ọsọ. N'ozuzu tinye nnukwu ego, obere mma, viscosity, nnukwu njigide mmiri. N'ime ha, ọnụ ọgụgụ nke agbakwunyere na ọnụ ọgụgụ njide mmiri na-enwe mmetụta kasịnụ, viscosity na ọkwa nke njide mmiri adịghị adabere na mmekọrịta ahụ. The mgbasa ọnụego tumadi na-adabere n'elu mgbanwe ogo na urughuru fineness nke cellulose ahụ. Na cellulose ether dị n'elu, methyl cellulose na hydroxypropyl methyl cellulose ọnụ ọgụgụ njide mmiri dị elu.
(2) Methyl cellulose nwere ike agbaze na mmiri oyi, mmiri ọkụ na-agbaze ga-ezute ihe isi ike, ngwọta mmiri ya na pH = 3 ~ 12 dị nnọọ mma. Ọ nwere ezigbo ndakọrịta na starch, guanidine chịngọm na ọtụtụ surfactants. Gelation na-eme mgbe okpomọkụ na-erute okpomọkụ gelation.
(3) Mgbanwe nke okpomọkụ ga-emetụta oke njide mmiri nke methyl cellulose. N'ozuzu, ka okpomọkụ dị elu, na-akawanye njọ njigide mmiri. Ọ bụrụ na ngwa ngwa okpomọkụ gafere 40 ℃, mmiri na-ejigide methyl cellulose ga-aka njọ nke ukwuu, na-emetụta n'ụzọ dị ukwuu owuwu nke ngwa agha.
(4) Methyl cellulose nwere mmetụta doro anya na owuwu na nrapado nke ngwa agha. N'ebe a, "adhesion" na-ezo aka na ike nrapado a na-enwe n'etiti ngwa ngwa onye ọrụ na mgbidi mgbidi, ya bụ, nkwụsị nke ngwa agha. Ngwongwo nrapado buru ibu, ihe mgbochi nke ngwa agha buru ibu, na ike nke ndị ọrụ na-arụ ọrụ na-arụ ọrụ na-arụkwa ọrụ buru ibu, ya mere ihe eji arụ ọrụ nke ngwa agha adịghị mma.
Na ngwaahịa ether cellulose, adhesion methyl cellulose dị na ọkwa ọkara. HPMC maka hydroxypropyl methyl cellulose, na-mere nke nụchara anụcha owu mgbe alkalization ọgwụgwọ, na propylene oxide na chloromethane dị ka etherifying gị n'ụlọnga, site a usoro nke mmeghachi omume na mere nke na-abụghị ionic cellulose agwakọta ether. Ogo ngbanwe bụ n'ozuzu 1.2 ~ 2.0. Njirimara ya na-emetụta oke ọdịnaya methoxy yana ọdịnaya hydroxypropyl.
(1) hydroxypropyl methyl cellulose soluble na mmiri oyi, mmiri ọkụ gbazere ga-ezute ihe isi ike. Ma gelation okpomọkụ ya na mmiri ọkụ dị nnọọ elu karịa nke methyl cellulose. Solubility nke methyl cellulose na mmiri oyi na-akawanye mma nke ukwuu.
(2) viscosity nke hydroxypropyl methyl cellulose metụtara ya molekụla arọ, na nnukwu molekụla arọ bụ elu viscosity. Okpomọkụ ga-emetụtakwa viscosity ya, okpomọkụ na-abawanye, viscosity na-ebelata. Otú ọ dị, viscosity nke elu okpomọkụ dị ala karịa nke methyl cellulose. Ngwọta ahụ kwụsiri ike mgbe echekwara ya na ụlọ okpomọkụ.
(3) hydroxypropyl methyl cellulose kwụsiri ike na acid na alkali, na mmiri mmiri ngwọta ya kwụsiri ike na nso nke pH = 2 ~ 12. Caustic soda na mmiri lime enweghị mmetụta dị ukwuu na njirimara ya, mana alkali nwere ike mee ka ọnụego mgbasa ya dịkwuo elu ma melite viscosity nke ntụtụ. Hydroxypropyl methyl cellulose nwere nkwụsi ike na nnu n'ozuzu, ma mgbe ntinye nke ngwọta nnu dị elu, viscosity nke hydroxypropyl methyl cellulose ngwọta na-eme ka ọ dịkwuo elu.
(4) Njide mmiri nke hydroxypropyl methyl cellulose na-adabere na ọnụọgụ nke agbakwunyere ya, viscosity, wdg, otu ọnụ ọgụgụ nke njide mmiri dị elu karịa methyl cellulose.
(5) hydroxypropyl methyl cellulose nwere ike ịgwakọta ya na mmiri-soluble polymer ogige ka ọ bụrụ otu, elu viscosity ngwọta. Dị ka mmanya polyvinyl, starch ether, osisi chịngọm na ihe ndị ọzọ.
(6) Nrapanye nke hydroxypropyl methyl cellulose na ngwa ngwa owuwu dị elu karịa nke methyl cellulose.
(7) hydroxypropyl methyl cellulose nwere nguzogide enzymatic ka mma karịa methyl cellulose, na ohere nke mmebi enzymatic nke ngwọta ya dị ala karịa nke methyl cellulose.
20, mmekọrịta dị n'etiti viscosity na okpomọkụ nke HPMC, nke kwesịrị ịkwụ ụgwọ na ngwa ngwa?
– Azịza: The viscosity nke HPMC bụ inversely hà okpomọkụ, ya bụ, viscosity na-abawanye na mbelata nke okpomọkụ. Mgbe anyị na-ekwu maka viscosity nke ngwaahịa, anyị na-ekwu na nsonaazụ nke ịlele 2% mmiri mmiri ngwọta na okpomọkụ nke 20 degrees Celsius. Na ngwa bara uru, na mpaghara nwere nnukwu ọdịiche okpomọkụ dị n'etiti oge okpomọkụ na oyi, a ga-akwụ ụgwọ nlebara anya na nkwenye iji obere viscosity dị ala n'oge oyi, nke na-eme ka owuwu ụlọ. Ma ọ bụghị ya, mgbe okpomọkụ dị ala, viscosity nke cellulose ga-abawanye, mgbe ịchacha, ọ ga-adị arọ. Ọkara viscosity: 75000-100000 bụ tumadi eji maka putty kpatara: ezigbo mmiri njigide elu viscosity: 150000-200000 bụ tumadi eji polystyrene ahụ thermal mkpuchi ngwa agha gluu ntụ ntụ ihe na iko beads thermal mkpuchi ngwa agha. Ihe kpatara ya: elu viscosity, ngwa agha adịghị mfe idobe uyi na eruba nghọta, meziwanye ihe owuwu ahụ. Ma n'ozuzu na-ekwu okwu, na elu nke viscosity, mma njigide mmiri ga-adị, ya mere, ọtụtụ akọrọ ngwa agha ụlọ ọrụ na-atụle na-eri, na ọkara viscosity cellulose (75,000-100000) iji dochie ala viscosity cellulose (20,000-40000) iji belata ego. mgbakwunye.
Oge nzipu: Feb-05-2024