Hydroxyethyl cellulose (HEC) bụ vasatail na ọtụtụ ebe a na-eji thickening gị n'ụlọnga na agba na mkpuchi. Ọ na-arụ ọtụtụ ọrụ, na-eme ka arụmọrụ, nkwụsi ike, na ngwa ngwa nke ngwaahịa ndị a. N'okpuru ebe a bụ ntuziaka zuru oke maka otu esi eji hydroxyethyl cellulose eme ihe nke ọma na agba na mkpuchi, na-ekpuchi uru ya, ụzọ ntinye, na echiche nhazi.
Uru nke Hydroxyethyl Cellulose na agba na mkpuchi
Mgbanwe Rheology: HEC na-enye ihe na-achọsi ike na nhazi ọkwa na eserese na mkpuchi, na-enyere ha aka ịgbasa nke ọma na ibelata sagging.
Nkwalite nkwụsi ike: Ọ na-eme ka emulsion kwụsie ike ma gbochie nkewa nke oge, na-ahụ na nkesa otu nke pigmenti na ndị na-ejuputa.
Njirimara Ngwa emelitere: Site n'ịgbanwe viscosity, HEC na-eme ka agba dị mfe itinye, ma ọ bụ brush, roller, ma ọ bụ ịgba.
Njide mmiri: HEC nwere ezigbo njide mmiri, nke dị oke mkpa maka ịnọgide na-arụ ọrụ nke agba na mkpuchi, karịsịa na ọnọdụ akọrọ.
Ndakọrịta: HEC dakọtara na ọtụtụ ihe mgbaze, pigmenti na ihe mgbakwunye ndị ọzọ, na-eme ka ọ dị mma maka usoro dị iche iche.
Ụzọ ngwa
1. Ngwakọta akọrọ
Otu ụzọ a na-ahụkarị iji tinye HEC n'ime nhazi agba bụ site na ngwakọta akọrọ:
Kwụpụ 1: tụọ ego achọrọ nke ntụ ntụ HEC.
Nzọụkwụ 2: Jiri nwayọọ tinye HEC ntụ ntụ na akụkụ ndị ọzọ akọrọ nke nhazi.
Kwụpụ 3: Gbaa mbọ hụ na ị ga-agwakọta nke ọma ka ịzenarị nhịkọ.
Kwụpụ 4: Jiri nwayọọ tinye mmiri ma ọ bụ ihe mgbaze ka ị na-agwakọta na-aga n'ihu ruo mgbe HEC zuru ezu hydrated ma nweta ngwakọta nke otu.
Ngwakọta akọrọ dị mma maka nhazi ebe achọrọ njikwa ziri ezi na viscosity site na mmalite.
2. Nkwadebe Ngwọta
Ịkwadebe ihe ngwọta nke HEC tupu itinye ya na nhazi agba bụ ụzọ ọzọ dị irè:
Kwụpụ 1: Gbasaa ntụ ntụ HEC n'ime mmiri ma ọ bụ ihe mgbaze chọrọ, na-eme ka mkpali na-aga n'ihu iji gbochie nhazi nke ọkpụkpụ.
Kwụpụ 2: Nye oge zuru ezu maka HEC iji mee ka mmiri na-agbaze ma gbazee, ọ na-abụkarị ọtụtụ awa ma ọ bụ n'abali.
Kwụpụ 3: Tinye ihe ngwọta ngwaahịa a na nhazi agba mgbe ị na-akpali ruo mgbe a na-enweta nkwekọ na ihe onwunwe achọrọ.
Usoro a na-enye ohere ijikwa na ntinye HEC dị mfe karị, karịsịa na mmepụta nnukwu.
Atụmatụ nhazi
1. itinye uche
Ntinye uche nke HEC chọrọ na nhazi agba dịgasị iche dabere na viscosity na usoro ngwa achọrọ:
Ngwa dị ala-Shear: Maka ngwa ahịhịa ma ọ bụ rola, obere ntinye HEC (0.2-1.0% site na ibu) nwere ike zuo oke iji nweta viscosity achọrọ.
Ngwa akwa-Shear: Maka ngwa ịgba mmiri, itinye uche dị elu (1.0-2.0% site na ịdị arọ) nwere ike ịdị mkpa iji gbochie ịla n'iyi ma hụ na atomization dị mma.
2. Ndozi pH
pH nke agba agba nwere ike imetụta solubility na arụmọrụ nke HEC:
Oke pH kacha mma: HEC kacha dị irè na oke pH na-anọpụ iche na obere alkaline (pH 7-9).
Ndozi: Ọ bụrụ na nhazi ahụ dị oke acidic ma ọ bụ oke alkaline, gbanwee pH site na iji mgbakwunye kwesịrị ekwesị dị ka amonia ma ọ bụ organic acids iji bulie arụmọrụ HEC.
3. Okpomọkụ
Okpomọkụ na-arụ ọrụ dị mkpa na hydration na mgbasa nke HEC:
Mmiri oyi Soluble: Ụfọdụ akara ule HEC ka emebere na mmiri oyi, nke nwere ike ime ka usoro ngwakọta dị mfe.
Mmụba mmiri na-ekpo ọkụ: N'ọnọdụ ụfọdụ, iji mmiri ọkụ nwere ike mee ka usoro hydration dịkwuo ngwa, mana okpomọkụ dị n'elu 60 ° C kwesịrị izere iji gbochie mmebi nke polymer.
4. Ndakọrịta na ihe ndị ọzọ
HEC kwesịrị ikwekọ na ihe ndị ọzọ dị na nhazi ahụ iji zere nsogbu dị ka nhazi gel ma ọ bụ nkewa nke oge:
Ihe mgbaze: HEC dakọtara na ma usoro mmiri na ihe mgbaze, mana ekwesịrị ịkpachara anya iji hụ na mgbasa zuru oke.
Pigments na Fillers: HEC na-enyere aka ịkwado pigmenti na ndị na-ejuputa, na-ahụ maka nkesa otu na igbochi nhazi.
Ihe mgbakwunye ndị ọzọ: Ọnụnọ nke surfactants, dispersants, na ihe mgbakwunye ndị ọzọ nwere ike imetụta viscosity na nkwụsi ike nke usoro HEC-thickened.
Ndụmọdụ bara uru maka iji kacha mma
Mgbasa tupu: Ịgbasa HEC na mmiri tupu ịtinye ya na nhazi agba nwere ike inye aka hụ na nkesa otu na igbochi nkwụsị.
Mgbakwunye ngwa ngwa: Mgbe ị na-agbakwunye HEC na nhazi ahụ, mee ya nwayọọ nwayọọ na mkpasu iwe na-aga n'ihu iji zere lumps.
Ịgwakọta nnukwu shear: Jiri igwe na-akụ akwa dị elu ma ọ bụrụ na ọ ga-ekwe omume, n'ihi na ha nwere ike inye aka nweta ngwakọta na-ejikọta ọnụ na njikwa viscosity ka mma.
Nkwalite mmụba: Gbanwee ntinye uche HEC na-abawanye, nwalee viscosity na ngwa ngwa mgbe mgbakwunye ọ bụla ga-enweta nguzosi ike chọrọ.
Okwu ndị a na-ahụkarị na nchọpụta nsogbu
Lumping: Ọ bụrụ na agbakwunyere HEC ngwa ngwa ma ọ bụ na-enweghị ngwakọta zuru oke, ọ nwere ike ịmepụta lumps. Iji gbochie nke a, fesaa HEC na mmiri nke nta nke nta ka ọ na-akpali akpali.
Viscosity na-ekwekọghị ekwekọ: Mgbanwe dị na ọnọdụ okpomọkụ, pH, na ngwakọ ngwakọta nwere ike iduga viscosity na-ekwekọghị ekwekọ. Na-enyocha ma mezie paramita ndị a mgbe niile iji nọgide na-enwe otu.
Ụfụfụ: HEC nwere ike iwebata ikuku n'ime nhazi ahụ, na-eduga na ụfụfụ. Jiri defoamers ma ọ bụ ihe na-egbochi ụfụfụ iji belata okwu a.
Hydroxyethyl cellulose bụ ihe dị oké ọnụ ahịa n'ụdị agba na mkpuchi n'ihi ikike ya ịkwalite viscosity, nkwụsi ike na njirimara ngwa. Site n'ịghọta ụzọ kachasị mma maka itinye HEC, nhazi nhazi usoro, na nchọpụta nsogbu ndị a na-ahụkarị, ndị na-emepụta nwere ike ịmepụta ngwaahịa agba dị elu, na-agbanwe agbanwe na enyi na enyi. Ma site na ngwakọta akọrọ ma ọ bụ nkwadebe ngwọta, isi ihe dị na ngwakọta nke ọma, ngbanwe pH na njikwa okpomọkụ iji nweta uru nke HEC n'ụzọ zuru ezu.
Oge nzipu: Mee-28-2024