1, kedu ihe bụ isi ojiji nke hydroxypropyl methyl cellulose (HPMC)?
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 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?
Enwere ike kewaa HPMC n'ime ngwa ngwa ngwa ngwa na ụdị ngwọta na-ekpo ọkụ, ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa na mmiri oyi, na-apụ n'anya na mmiri, n'oge a, mmiri mmiri enweghị viscosity, n'ihi na HPMC na-agbasasị na mmiri. enweghị ezigbo mgbasa.Ihe dị ka nkeji 2, viscosity nke mmiri mmiri na-eji nwayọọ nwayọọ na-abawanye, na-eme ka colloid viscos 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?
Usoro mgbasa mmiri ọkụ: N'ihi na HPMC adịghị agbaze na mmiri ọkụ, yabụ enwere ike ịgbasa HPMC n'oge na mmiri ọkụ, wee gbazee ngwa ngwa mgbe ọ dị jụụ, a na-akọwa ụzọ abụọ a na-ahụkarị dị ka ndị a:
1) Tinye mmiri ọkụ achọrọ n'ime akpa wee kpoo ya 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) mee ihe dị ka onye na-emepụta ihe na ihe na-ejigide mmiri na ngwa ngwa putty powder.
4, kedu ka ọ dị mfe na nghọta iji chọpụta ogo hydroxypropyl methyl cellulose (HPMC)?
(1) ọcha: ọ bụ ezie na ịcha ọcha enweghị ike ikpebi ma HPMC dị mfe 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?
HPMC n'ezie ngwa nke onunu ogwu, site ihu igwe gburugburu ebe obibi, okpomọkụ, obodo calcium ash àgwà, putty ntụ ntụ usoro na "ahịa chọrọ nke àgwà", na nwere dị iche iche.N'ikwu okwu n'ozuzu, n'etiti kilogram anọ na ise.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.
6, hydroxypropyl methyl cellulose (HPMC) ole viscosity kwesịrị ekwesị?
Na-agwụ ike na nwa ntụ ntụ bụ izugbe 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 njide mmiri dị mma, viscosity dị ala (7-80 puku), ọ ga-ekwe omume, n'ezie, viscosity dị ukwuu, njide 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?
Ọdịnaya Hydroxypropyl na viscosity, ọtụtụ ndị ọrụ na-eche banyere ndeksi abụọ a.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 iji ụfọdụ.
8, hydroxypropyl methyl cellulose (HPMC) ihe bụ isi akụrụngwa bụ gịnị?
Hydroxypropyl methyl cellulose (HPMC) bụ isi akụrụngwa: owu a nụchara anụcha, chloromethane, propylene oxide, ngwaọrụ ndị ọzọ, mbadamba alkali, acid, toluene, isopropyl mmanya na na.
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.Thickening: 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, wee jiri ya mee ihe, 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 ngwakọta CaCO3, 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 uyi mma mmeghachi omume, ya onwe-adịghị ekere òkè ọ bụla mmeghachi omume.
10, HPMC na-abụghị ionic cellulose ether, kedu ihe na-abụghị ionic?
N'okwu n'ozuzu, nonionic bụ ihe na-adịghị ionize na mmiri.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?
HPMC gel okpomọkụ jikọtara ya na methoxy ọdịnaya, na-ebelata methoxy ọdịnaya ↓, na elu gel okpomọkụ ↑.
12. Enwere mmekọrịta dị n'etiti putty ntụ ntụ na HPMC?
Putty ntụ ntụ na àgwà calcium nwere mmekọrịta dị ukwuu, na HPMC enweghị mmekọrịta dị ukwuu.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?
HPMC mmiri oyi soluble ụdị bụ mgbe glioxal n'elu ọgwụgwọ, na mmiri oyi ngwa ngwa achụsasịwo, ma ọ bụghị n'ezie etisasịwo, viscosity elu, na-etisasịwo.Ejighị glycoxal gwọọ ụdị nke nwere ike ịsọ oyi n'elu.Olu nke glycoxal 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?
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)?
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?
Hydroxypropyl Methyl Cellulose, Bekee: Hydroxypropyl Methyl Cellulose ndebiri: HPMC ma ọ bụ MHPC utu aha: Hydroxypropyl Methyl Cellulose;Cellulose hydroxypropyl methyl ether;Cellulose hydroxypropyl Methyl ether Hypromellose, 2-hydroxypropylmethyl 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?
Putty ntụ ntụ maka mgbidi dị n'ime: 800KG nke calcium dị arọ na 150KG nke calcium isi awọ (starch ether, green green, peng peng, citric acid na polyacrylamide nwere ike ịgbakwunye nke ọma)
Mpụga mgbidi putty ntụ ntụ: ciment 350KG arọ calcium 500KG quartz ájá 150KG latex ntụ ntụ 8-12kg cellulose ether 3KG starch ether 0.5kg osisi eriri 2KG
19. Kedu ihe dị iche n'etiti HPMC na MC?
MC bụ methyl cellulose, owu a nụchara anụcha mgbe ọgwụgwọ alkali gasịrị, yana methane chloride dị ka onye na-ahụ maka etherification, site na usoro mmeghachi omume iji mee 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 njigide 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-emekarị 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.
Kedu ihe a ga-elebara anya na ngwa bara uru nke mmekọrịta dị n'etiti viscosity na okpomọkụ nke HPMC?
Viscosity nke HPMC na-adaba na 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 nke ejiri maka putty
Ihe kpatara ya: ezigbo njide mmiri
Viscosity dị elu: 150000-200000 bụ nke a na-ejikarị maka akụkụ polystyrene thermal ikpuchi ngwa agha ntụ ntụ na akwa mkpuchi mkpuchi mkpuchi mkpuchi iko.
Ihe kpatara ya: elu viscosity, ngwa agha adịghị mfe ịdaba, na-asọba na-asọba, 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: Sep-14-2022