Hydroxypropyl methyl cellulose HPMC tumadi nwere atọ viscosities, HPMC-100000, HPMC-150000, na HPMC-200000 viscosity.N'ikwu okwu n'ozuzu, hydroxypropyl methyl cellulose na viscosity nke 100,000 na-ejikarị eme ihe na mmepụta nke ime na mputa mgbidi putty ntụ ntụ.Cellulose nwere viscosity nke 200,000 a na-eji ya eme ihe eji arụ ụlọ dị ka ngwa ngwa akọrọ, apịtị nkume dị mfe, apịtị diatom, na mkpuchi mgbidi.Ngwaahịa ahụ nwere mmetụta njigide mmiri dị mma, mmetụta dị mma nke ọma, ịdị mma kwụsiri ike na ọnụahịa ezi uche dị na ya.
A na-eji HPMC Hydroxypropyl methylcellulose mee ihe na ụlọ ọrụ ihe owuwu ụlọ.Enwere ike iji ọnụ ọgụgụ dị ukwuu nke cellulose mee ihe dị ka onye na-azụ azụ, onye na-ejigide mmiri, thickener na ihe nkedo.Cellulose ether na-arụ ọrụ dị mkpa na ngwa agha akọrọ-agwakọta nkịtị, ngwa agha mkpuchi mgbidi dị elu dị elu, ngwa agha na-edozi onwe ya, ihe mkpuchi ntụ ntụ akọrọ, ceramic tile bonding akọrọ ntụ ntụ ngwa agha, nnukwu arụ ọrụ ụlọ putty, mgbape na-eguzogide ime na mputa. mgbidi mgbidi, wdg , mmiri na-adịghị akọrọ-mix ngwa agha, gypsum plasta, scraping whitening agent, mkpakọ nkwonkwo na ihe ndị ọzọ.Ha nwere mmetụta dị ukwuu na njide mmiri, mmiri chọrọ, ịdị mma, nkwụsịtụ na ịrụ ọrụ nke usoro stucco.Ethers cellulose a na-ejikarị eme ihe n'ubi a gụnyere HEC, HPMC, CMC, PAC, MHEC, wdg.
Nonionic mmiri-soluble cellulose ethers bara uru ihe mgbakwunye ihe eji ewu ụlọ n'ihi ihe ejikọtara ha, nkwụsi ike mgbasa, na ike ijide mmiri.A na-eji HPMC, MC ma ọ bụ EHEC eme ihe n'ọtụtụ ciment ma ọ bụ gypsum, dị ka ngwa agha masonry, ngwa ngwa ciment, mkpuchi ciment, gypsum, ngwakọta cementious na emulsion putty, wdg, nke nwere ike ịkwalite mgbasa nke ciment ma ọ bụ ájá ma melite nke ukwuu. adhesion , nke dị ezigbo mkpa maka plasta, tile ciment na putty.Maka ciment, HEC abụghị naanị onye na-azụ azụ, kamakwa onye na-ejigide mmiri.HEHPC nwekwara ebumnuche a.A na-ejikarị ethers cellulose na-ejikọta ya na gluconates na ngwa agha dị ka ihe mgbakwunye retarder bara uru.A na-ejikarị MC ma ọ bụ HEC na CMC eme ihe dị ka akụkụ siri ike nke akwụkwọ ahụaja.Ọkara ma ọ bụ elu viscosity cellulose ethers na-ejikarị na akwụkwọ ahụaja nrapado na ihe ụlọ.
Ngwaahịa HPMC Hydroxypropyl methylcellulose na-ejikọta ọtụtụ ihe anụ ahụ na kemịkal ka ọ bụrụ ngwaahịa pụrụ iche nwere ọtụtụ ojiji.Njirimara dị iche iche bụ ndị a:
(1) Njide mmiri: Ọ nwere ike idowe mmiri n'elu ihe ndị na-asọ oyi dịka mbadamba ciment na brik.
(2) Ihe na-emepụta ihe nkiri: Ọ nwere ike ịmepụta ihe nkiri transperent, siri ike, dị nro nke nwere mmanu mmanu mmanu.
(3) Ngwakọta anụ ahụ: Ngwaahịa a bụ soluble na ụfọdụ ihe mgbaze organic, dị ka ethanol/mmiri, propanol/mmiri, dichloroethane na ihe mgbaze nke mejupụtara abụọ ihe mgbaze organic na oke kwesịrị ekwesị.
(4) Thermal gelation: Mgbe ngwọta mmiri nke ngwaahịa a na-ekpo ọkụ, ọ na-emepụta gel ma ghọọ ngwọta mgbe ọ jụrụ.
(5) Ọrụ dị n'elu: Nye ọrụ elu na ngwọta iji nweta ezigbo emulsification colloidal na nchebe, yana nkwụsị nke oge.
(6) Ihe nkwusioru: Hydroxypropyl methylcellulose nwere ike igbochi ụmụ irighiri ihe siri ike idozi, si otú a na-egbochi nhazi nke precipitates.
(7) Colloid nchekwa: Ọ nwere ike igbochi ụmụ irighiri mmiri na ụmụ irighiri mmiri ka ọ ghara ikpokọta ma ọ bụ ikpokọta.
(8) Adhesion: Eji ya mee ihe maka pigmenti, ngwaahịa ụtaba, na ngwaahịa akwụkwọ, ọ nwere ọrụ magburu onwe ya.
(9) Mmiri solubility: Ngwaahịa a nwere ike igbari na mmiri n'ụzọ dị iche iche, na njedebe kachasị elu bụ nanị viscosity.
(10) Nonionic inertness: Ngwaahịa a bụ nonionic cellulose ether na anaghị ejikọta ya na metal salts ma ọ bụ ndị ọzọ ion na-etolite-apụghị soluble precipitates.
(11) Acid-base kwụsie ike: adabara maka ojiji n'ime pH nso nke 3.0-11.0.
(12) Enweghị ụtọ na enweghị isi, ọ naghị emetụta metabolism;eji dị ka mgbakwunye na nri na ọgwụ, ha na-adịghị metabolized na nri na-adịghị enye calories.
Ya mere, hydroxypropyl methylcellulose HPMC nwere ọnọdụ dị mkpa na ụlọ ọrụ na-ewu ụlọ, na cellulose green ga-eji ọtụtụ ebe na-ewu ụlọ ọrụ.Ogo dị elu, ọnụ ahịa ndị dị mma na ọrụ ka mma bụ ihe ndị na-emepụta cellulose na latex ntụ ntụ na-achụso mgbe niile.Ụbọchị Ọdịnihu na-akwado nkà ihe ọmụma azụmahịa nke "ịlanarị site na mma, mmepe site na sayensị na nkà na ụzụ, ahịa site na aha, na arụmọrụ site na njikwa".Anyị hydroxypropyl methylcellulose, redispersible latex ntụ ntụ, na hydroxyethyl cellulose na-enye ndị ahịa ngwaahịa ngwaahịa dị elu.
Oge nzipu: Feb-02-2024