Enwere ike kewaa HPMC ka ọ bụrụ ọkwa ihe owuwu, ọkwa nri na ọkwa ọgwụ dịka ebumnuche siri dị.Ka ọ dị ugbu a, ihe ka ọtụtụ n'ime ihe ndị a na-emepụta n'ụlọ bụ ọkwa ihe owuwu, na n'ime ihe owuwu ụlọ, ọnụ ọgụgụ nke putty ntụ ntụ dị nnọọ ukwuu.Gwakọta ntụ ntụ HPMC na nnukwu ntụ ntụ ndị ọzọ, gwakọta ya nke ọma na igwekota, wee gbakwunye mmiri ka ọ gbazee, mgbe ahụ, HPMC nwere ike ịgbaze n'oge a na-enweghị agglomeration, n'ihi na nkuku ọ bụla, ntakịrị ntụ ntụ HPMC, na-ezute. mmiri.ga-agbaze ozugbo.Putty ntụ ntụ na ndị na-emepụta ngwa agha na-ejikarị usoro a.A na-eji Hydroxypropyl methylcellulose (HPMC) mee ihe dị ka onye na-agbapụta mmiri na mmiri na-ejide mmiri n'ime ntụ ntụ ntụ ntụ.
The gel okpomọkụ nke HPMC metụtara ya methoxy ọdịnaya, ala methoxy ọdịnaya ↓, elu na gel okpomọkụ ↑.A na-eji glioxal agwọ ụdị mmiri oyi nke HPMC n'elu, ọ na-agbasa ngwa ngwa na mmiri oyi, mana ọ naghị agbaze n'ezie.Ọ na-agbaze naanị mgbe viscosity na-abawanye.A naghị eji glycoxal agwọ ụdị agbaze na-ekpo ọkụ n'elu.Ọ bụrụ na ọnụ ọgụgụ glycoxal buru ibu, nkesa ahụ ga-adị ngwa ngwa, ma viscosity ga-abawanye nwayọọ nwayọọ, ma ọ bụrụ na ọnụ ọgụgụ ahụ dị ntakịrị, ihe na-abụghị eziokwu.Enwere ike ikewa HPMC ka ọ bụrụ ụdị ngwa ngwa na ụdị mgbasa ọkụ.Ngwa ngwa ụdị ngwaahịa na-agbasa ngwa ngwa na mmiri oyi wee pụọ n'ime mmiri.N'oge a, mmiri mmiri enweghị viscosity n'ihi na HPMC na-agbasasị naanị na mmiri na-enweghị ezigbo mgbasa.Ihe dị ka nkeji 2, viscosity nke mmiri mmiri na-eji nwayọọ nwayọọ na-abawanye, na-eme ka viscos colloid transperent.Ngwaahịa na-ekpo ọkụ na-ekpo ọkụ, mgbe a na-ezute mmiri oyi, nwere ike ịgbasa ngwa ngwa na mmiri ọkụ ma pụọ na mmiri ọkụ.Mgbe okpomọkụ na-adaba n'otu ọnọdụ okpomọkụ, viscosity ga-eji nwayọọ nwayọọ na-apụta ruo mgbe ọ na-emepụta colloid viscous na-egbuke egbuke.Ụdị agbaze na-ekpo ọkụ nwere ike iji naanị na ntụ ntụ na ngwa ngwa.N'ime gluu mmiri mmiri na agba, a ga-enwe otu ihe na-enweghị ike iji ya mee ihe.Ụdị ngwa ngwa nwere ọtụtụ ngwa ngwa.Enwere ike iji ya na ntụ ntụ na ngwa ngwa, yana gluu mmiri na agba, na-enweghị ihe ọ bụla.
HPMC mepụtara site na usoro mgbaze na-eji toluene na isopropanol dị ka ihe mgbaze.Ọ bụrụ na ịsa ahụ adịghị mma nke ukwuu, a ga-enwe isi ihe fọdụrụnụ.Ngwa nke ntụ ntụ putty: ihe ndị a chọrọ dị ala, viscosity bụ 100,000, o zuru ezu, ihe dị mkpa bụ idobe mmiri nke ọma.Ngwa nke ngwa agha: elu chọrọ, elu viscosity, 150,000 ka mma.Ngwa nke gluu: ngwa ngwa ngwaahịa nwere nnukwu viscosity chọrọ.Ọnụ ego nke HPMC ejiri mee ngwa dị irè dịgasị iche dabere na gburugburu ihu igwe, okpomọkụ, àgwà calcium mpaghara ash, usoro ntụ ntụ putty na "àgwà ndị ahịa chọrọ".Viscosity nke hydroxypropyl methylcellulose (HPMC) -putty ntụ ntụ bụ n'ozuzu 100,000, na ihe a chọrọ maka ngwa agha dị elu, ọ dịkwa mkpa 150,000 ka ọ dị mfe iji.Ọzọkwa, isi ọrụ nke HPMC bụ njide mmiri, na-esote thickening.Na ntụ ntụ putty, ọ bụrụhaala na njide mmiri dị mma na viscosity dị ala (70,000-80,000), ọ ga-ekwe omume.N'ezie, ka viscosity dị elu, ka mma na-ejigide mmiri.Mgbe viscosity gafere 100,000, viscosity ga-emetụta njide mmiri.Ọ bụghị nke ukwuu;ndị nwere ọdịnaya hydroxypropyl dị elu na-enwekarị njigide mmiri ka mma.Onye nwere viscosity dị elu nwere njide mmiri ka mma, na nke nwere nnukwu viscosity ka a na-eji ya mee ihe na ciment mortar.
N'ime ntụ ntụ putty, HPMC na-arụ ọrụ atọ nke ịgbara mmiri, njigide mmiri na ihe owuwu.Esokwala na mmeghachi omume ọ bụla.Ihe kpatara afụ nwere ike ịbụ na a na-etinye mmiri buru ibu, ma ọ bụ na ọ nwere ike ịbụ na oyi akwa nke ala adịghị akpọnwụ, na oyi akwa ọzọ na-akpụcha n'elu, ọ dịkwa mfe ịfụ ụfụfụ.Mmetụta siri ike nke HPMC na ntụ ntụ putty: cellulose nwere ike ịgbatị ka ọ kwụsịtụ, mee ka ngwọta ahụ bụrụ otu na nke na-agbanwe agbanwe, ma guzogide sagging.Mmetụta njide mmiri nke HPMC na ntụ ntụ: mee ka putty ntụ ntụ kpoo nwayọọ nwayọọ, ma nyere calcium ash aka imeghachi omume n'okpuru mmiri.Mmetụta ihe owuwu nke HPMC na ntụ ntụ ntụ: cellulose nwere mmetụta na-egbuke egbuke, nke nwere ike ime ka ntụ ntụ na-emepụta ihe dị mma.HPMC anaghị eso na mmeghachi omume kemịkalụ ọ bụla, mana ọ na-arụ naanị ọrụ inyeaka.
Ọnwụ ntụ ntụ nke putty ntụ ntụ na-emetụtakarị àgwà calcium ash, ọ nweghịkwa ihe jikọrọ ya na HPMC.Ọdịnaya calcium dị ala nke calcium isi awọ na oke na-ezighi ezi nke CaO na Ca (OH) 2 na calcium isi awọ ga-eme ka mfu ntụ ntụ.Ọ bụrụ na ọ nwere ihe jikọrọ ya na HPMC, ọ bụrụ na njide mmiri nke HPMC adịghị mma, ọ ga-eme ka ntụ ntụ daa.Ịgbakwunye mmiri na ntụ ntụ na-etinye ya na mgbidi bụ mmeghachi omume kemịkalụ, n'ihi na a na-emepụta ihe ọhụrụ, na-ewepụkwa ntụ ntụ na mgbidi ahụ na mgbidi ahụ.N'ala, gbadaa n'ime ntụ ntụ, ma jiri ya mee ihe, ọ gaghị arụ ọrụ, n'ihi na emepụtala ihe ọhụrụ (calcium carbonate).Isi ihe dị na ntụ ntụ calcium ash bụ: ngwakọta nke Ca (OH) 2, CaO na obere ego CaCO3, CaO + H2O = Ca (OH) 2-Ca (OH) 2+ CO2 = CaCO3↓+ H2O Ash calcium dị na mmiri na ikuku N'okpuru ọrụ nke CO2, calcium carbonate na-emepụta, ebe HPMC na-ejigide mmiri naanị, na-enyere aka mmeghachi omume dị mma nke calcium ash, ma ghara itinye aka na mmeghachi omume ọ bụla n'onwe ya.
Oge nzipu: Mar-18-2023