Kedu ihe bụ oke HPMC Hydroxypropyl methyl cellulose na simenti?
Mkpụrụ ihe mkpuchi ihe eji eme ihe nke na-anaghị amị amị nke na-anaghị amị amị, njirimara ya dabere na ibu dị arọ nke ihe ndị a na-emepụta: Kọnktrị 30-340, ntụ brik ihe mkpofu nke ihe owuwu injinia 40-50, eriri lignin 20-24, calcium formate 4-6, hydroxypropyl methyl cellulose 7-9, ntụ silicon carbide 40-45, ntụ calcium hydroxide 10-20, ntụ corundum aja aja 10-12, ntụ ntụ silt obodo kpọrọ nkụ 30-35, ala obodo Datong 40-45, aluminum sulfate 4-6, carboxymethyl Base starch 20-24, ihe ndị agbanwere nanotechnology ntụ ntụ carbon 4-6, mmiri 600-650; Mkpụrụ ihe mkpuchi ihe eji eme ihe nke na-anaghị amị amị nke ngwaahịa a nwere mkpuchi okpomọkụ siri ike, ezigbo iguzogide ọkụ, njikọ siri ike na mgbidi, ike nrụgide, arụmọrụ nrụgide, ezigbo iguzogide ịka nká, ezigbo nchekwa gburugburu ebe obibi, ezigbo mgbochi mmiri, iguzogide mgbawa, igbochi ịda ada. Taa, anyị ga-ekwu maka viscosity nke ngwọta mmiri hydroxypropyl methyl cellulose bụ ihe niile n'akụkụ dị aṅaa? Ka anyị mụọ ya nke ọma.
1. Ibu molekul dị n'otu, okpomọkụ nke mmiri mmiri, ọnụego mbelata na usoro nnwale nke cellulose ether; 2. Ka okpomọkụ mgbanwe iko dị elu, ka ibu molekul dị n'otu, ka viscosity nke ngwọta ahụ dị elu n'ụzọ ebumpụta ụwa; 3. Ka ọdịnaya nke cellulose ether dị elu, ka viscosity nke ngwọta ahụ dị elu, yabụ na ntinye nke ojiji anyị kwesịrị ịṅa ntị na ọnụọgụ kwesịrị ekwesị nke itinye ya, gbochie itinye ya oke elu, ma metụta kpọmkwem njirimara nke simenti na simenti; 4. Dịka ọtụtụ n'ime ngwọta ahụ, viscosity ga-ebelatakwa ka okpomọkụ na-abawanye, gbakwunyere ka ọdịnaya nke cellulose ether dị elu, ka mmebi nke okpomọkụ na-abawanye; Na mgbakwunye, mmetụta ọkpụrụkpụ n'ezie na-agbanwekwa dịka ọnụọgụ mmiri ejiri maka simenti epoxy simenti simenti simenti simenti simenti simenti simenti simenti simenti simenti simenti simenti simenti simenti simenti simenti simenti si dị.
Mmiri mmiri nke Hydroxypropyl methyl cellulose nwekwara ike ịbụ njikọ dị mkpa maka nkọwa gbasara njirimara nke cellulose ether, ka mmiri mmiri na-agba elu, ka ihe simenti epoxy ya dị arọ, ka mma, n'azụ efere ahụ, mana ọ bụrụ na mmiri ahụ buru ibu, ọ ga-emerụ ihe simenti epoxy ahụ ozugbo mmiri na ikike ịmanye ya. Banyere ụfọdụ ngwa agha na-eme ka ọ dị larịị nke nwere nnukwu mmiri mmiri, a ga-akọwapụta viscosity nke cellulose ether ka ọ dị ala.
Mmiri mmiri cellulose ether bụ ahụ pseudoplastic, anyị na ọkwa ikpeazụ nke nchọpụta nke ọnụego shear ka ukwuu, viscosity dị obere.
Ya mere, iji chịkọta ya bụ: ike mpụga ga-ebelata njikọ nke simenti mortar, nke bara uru maka owuwu injinia n'azụ, mana mmiri mmiri cellulose ether ga-eme ma ọ bụrụ na uru dị oke ala, njirimara nke mmiri mmiri na-abụghị Newtonian ga-eme, n'ụzọ megidere nke ahụ, mgbe uru ntinye ahụ mụbara, mmiri mmiri ga-eme njirimara mmiri mmiri pseudoplastic.
Nchekwa mmiri site na hydroxypropyl methyl cellulose bụ otu n'ime ihe ndị bụ isi nke hydroxypropyl methyl cellulose. Ọkwa mmiri na-agbapụta n'ime ngwaahịa agwakọta na plasta na-emetụta okpomọkụ gas, okpomọkụ na ọnụego nrụgide. Ya mere, n'oge dị iche iche, tinyere hydroxypropyl methyl cellulose, otu ụdị ngwaahịa ahụ nwere ụfọdụ ọdịiche dị iche.
N'ozuzu, ka viscosity nke hydroxypropyl methyl cellulose na-abawanye, otú ahụ ka mmetụta nke viscosity nke viscosity ga-aka mma, mana nsogbu nke viscosity na viscosity na viscosity ga-ebelata mgbe viscosity gafere 100,000 Mpa. s. Mgbe viscosity nke HYDROXYpropyl methyl cellulose gafere 100,000, a pụrụ ime ka ọnụego hydroxidepropyl methyl cellulose ka mma nke ukwuu.
N'usoro nhazi zuru ezu, enwere ike ịgbanwe mmetụta njigide mmiri nke slurry site na ịgbanwe ọnụọgụ nke hydroxypropyl methyl cellulose. Ngwaahịa usoro hydroxypropyl methyl cellulose nwere ike idozi nsogbu nke njigide mmiri nke ọma n'okpuru okpomọkụ dị elu na-aga n'ihu. N'oge okpomọkụ dị elu na-aga n'ihu, karịsịa n'ebe ọkụ na-agwụ ike na owuwu nke chromatography n'akụkụ anwụ na-acha, achọrọ HYDROXYpropyl methyl cellulose dị elu iji mepụta njigide mmiri nke slurry.
Ọ dị mma nke hydroxypropyl methyl cellulose, o nwere ezigbo nguzozi, otu ọrụ ya nke tertiary butyl na hydroxypropyl oxygen tinyere nkesa njikọ eriri molekul, ọ nwere ike ịmepụta otu methyl aldehyde na oxygen, na ịdị mma mmiri nke ụdị dijitalụ covalent bonds nwere ike, ghọọ mmiri na mmiri nke mgbasa, wee chịkwaa ihu igwe okpomọkụ dị elu nke mmiri na-ekupụ, na-ejide mmiri dị elu.
Elu dị elu nke hydroxypropyl methyl cellulose nwere ike itinye ala rụrụ arụ na nke azụmahịa n'ime ngwaahịa ngwa ọgụ na plasta agwakọtara, yana ihe niile siri ike cyst, mmiri mmiri, oyi, ma mepụta oyi akwa nke ihe nkiri, mmiri mmiri n'ime obere oge na-ahapụ nwayọ nwayọ site na ntọala, na mmalite nke ngwakọta organic nke mmeghachi omume mmiri mmiri, wee hụ na njikọ nke ihe ndị e ji emepụta ihe dị n'ime ya siri ike na ike nrụgide. Ya mere, n'oge usoro owuwu oge okpomọkụ dị elu, iji ruo mmetụta mmiri, kwesịrị ịdị ka usoro maka ọnụọgụ na ịdị mma nke ngwaahịa hydroxypropyl methyl cellulose, ma ọ bụghị ya, ọ ga-egosi na ọ na-agwụ ike ngwa ngwa ma na-akpata mmiri zuru oke, belata ike nrụgide, kewaa, gbawaa àgwà ndị dị ka drum efu metope na obi abụọ, tinyekwara ihe isi ike owuwu onye ọrụ. Ka okpomọkụ na-ebelata, enwere ike ibelata ọnụọgụ nke hydroxypropyl methyl cellulose nwayọ nwayọ ma nwee ike nweta otu mmetụta njide mmiri ahụ.
Ọ bụrụ na etinyeghị cellulose ether, chromatography nke simenti ọhụrụ ga-akpọnwụ ngwa ngwa, na-eme ka simenti ghara ịmịcha mmiri n'ụzọ nkịtị, nke na-eme ka simenti ghara ịdị ike ma nweta nrapado ka mma. N'otu oge ahụ, mgbakwunye nke cellulose ether na-eme ka simenti nwee ezigbo ductility na mgbanwe, ma na-eme ka ike nrụgide nke simenti dịkwuo mma.
1, nha ihe dị na hydroxypropyl methyl cellulose
Nha nke cellulose ether na-emebi ike ya ịgbaze. Ka cellulose ether dị nro karị, otú ahụ ka ọsọ ọsọ ya na-agbaze n'ime mmiri na-eme ka njirimara ya na-ejide mmiri dịkwuo elu. Ya mere, a ga-etinye nha nke cellulose ether n'ime nyocha nke otu n'ime njirimara ya. N'ozuzu, nha nke cellulose ether nke mesh 80 dabere na ya.
2, hydroxypropyl methyl cellulose kpọrọ nkụ na-enweghị oke ndọda
Ọkwa oke manic akọrọ nke na-enweghị ike ndọda, na-ezo aka na okpomọkụ ụfọdụ nke manic cellulose ether akọrọ, ọnwụ nke ịdị mma kemịkalụ mere ka pasentị mma nke ihe mejupụtara ya bụrụ nke mbụ. Maka ụdị ụfọdụ nke cellulose ether na akọrọ na-enweghị ike ndọda, ọ ga-ebelata ihe ndị dị mkpa na cellulose ether, mebie mmetụta nke ojiji nke ụlọ ọrụ ndị dị n'okpuru ala, mana ọ ga-emekwa ka ọnụ ahịa ịzụrụ ya ka mma. Ọtụtụ mgbe, cellulose ether akọrọ na-enweghị ike ndọda agaghị agafe 5.0%.
3, hydroxypropyl methyl cellulose potassium thiocyanate ash
Maka àgwà ụfọdụ nke cellulose ether na ọdịnaya ash dị oke elu, ga-ebelata cellulose ether na ihe ndị dị mkpa, mebie mmetụta nke ojiji nke ụlọ ọrụ ndị dị n'okpuru ala, ọdịnaya ash cellulose ether potassium thiocyanate bụ isi ihe a na-atụle nke njirimara ya na uru index.
4, viscosity nke hydroxypropyl methyl cellulose
Mmetụta nke hydroxypropyl methyl cellulose na njigide mmiri bụ isi ihe na-eme ka simenti mortar cellulose ether nwee viscosity na ntinye ya.
5, hydroxypropyl methyl cellulose PH uru
Ọbara ọbara nke ngwaahịa hydroxypropyl methyl cellulose na-ebelata nwayọ nwayọ ma ọ bụrụ na okpomọkụ dị elu ma ọ bụ mgbe echekwara ya ruo ogologo oge, ọkachasị maka ngwaahịa viscosity dị elu, yabụ uru pH ga-ejedebe. A na-ekwukarị na a ga-eji ụdị uru PH nke cellulose ether rụọ ọrụ dị ka 5-9.
6. Mbufe nke hydroxypropyl methyl cellulose
Uru na ọghọm nke nnyefe nke hydroxypropyl methyl cellulose nwere ike imetụta mmetụta nke ojiji ya n'ihe owuwu ụlọ. Isi ihe ndị na-emebi nnyefe nke cellulose ether bụ
1) ịdị mma nke ihe ndị e ji arụ ọrụ; (2) mmetụta nke deashing n'ezie; (3) nkwadebe teknụzụ nhazi; (4) nkwadebe ihe mgbaze organic; (5) Mmetụta n'ezie nke zhonghe.
Dịka mmetụta ngwa ahụ si dị, nnyefe nke cellulose ether ekwesịghị ịbụ ihe na-erughị 80%.
7, a na-enyo enyo na okpomọkụ hydroxypropyl methyl cellulose
hydroxypropyl methyl cellulosena ihe ndị e ji simenti mee dị ka isi ihe na-eme ka ihe nrapado dịkwuo elu, viscosity na ihe na-ejide mmiri, ya mere viscosity na okpomọkụ gel bụ isi ihe dị mkpa nke hydroxypropyl methyl cellulose. A na-eji okpomọkụ ahụ ekpebi ụdị na nkọwapụta nke cellulose ether, yana oke nnọchi nke cellulose ether nwere njikọ.
8. Na mgbakwunye, nnu na ihe fọdụrụ ga-emerụkwa okpomọkụ nke gluu ahụ. Mgbe okpomọkụ nke mmiri mmiri ahụ rịrị elu, polima eriri ahụ na-enweghị mmiri nwayọ nwayọ, viscosity nke mmiri mmiri ahụ na-ebelata. Mgbe e ruru ebe ihe nrapado ahụ, polima ahụ kpọrọ nkụ kpamkpam ma mepụta ihe nrapado ahụ. Ya mere, okpomọkụ ọrụ nke ihe ndị mejupụtara simenti na-adịkarị n'okpuru okpomọkụ gluu mbụ. N'okpuru ọkọlọtọ a, obere okpomọkụ ahụ na-ebelata, viscosity na-abawanye, na mmetụta dị ukwuu nke viscosification na idobe mmiri.
Oge ozi: Eprel-25-2024