Hydroxypropyl methylcellulose (HPMC) bụ polymer multifunctional nke a na-ejikarị na ụlọ ọrụ dị iche iche gụnyere ihe owuwu.N'ime usoro putty, HPMC na-arụ ọrụ dị iche iche, gụnyere ịkwalite ikike ịrụ ọrụ, melite nrapado, ịchịkwa njide mmiri, na ịkwalite akụrụngwa akụrụngwa.
Nhazi nke Putty na-arụ ọrụ dị mkpa n'ịrụ ụlọ dị ka ihe dị iche iche nke na-ejupụta oghere, na-eme ka ọ dị nro, ma na-enye ọbụna ntọala maka agba na mkpuchi.Hydroxypropyl methylcellulose (HPMC) bụ otu n'ime ihe ndị bụ isi e ji mee ihe n'ụdị putty n'ihi ihe ndị pụrụ iche na ụdị ya.
1.HPMC chemical Njirimara
Hydroxypropylmethylcellulose bụ polymer synthetic nke sitere na cellulose.A na-eji usoro ya pụrụ iche mara ya, nke nwere agbụ cellulose jikọtara na hydroxypropyl na otu methyl.Ogo nke nnọchi nke otu ndị a na-ekpebi njirimara nke HPMC, gụnyere solubility, viscosity na ike imepụta ihe nkiri.A, HPMC eji na putty formulations dị na ọkara ruo elu viscosity akara ule na-enye chọrọ rheological Njirimara.
2. Usoro nke ime ihe nke usoro putty
Melite ikike ịrụ ọrụ
HPMC na-arụ ọrụ dị ka onye na-agbapụta ihe na rheology modifier iji melite arụmọrụ nke usoro putty.Molecules polymer na-ekekọta ma na-etolite netwọk nwere akụkụ atọ, nke na-enye viscosity ma na-egbochi ụmụ irighiri ihe siri ike idozi.Nke a na-eme ka ọ bụrụ nkesa na ngwa ngwa dị mfe nke putty, na-enye ya ohere ịgbasa ma na-akpụzi nke ọma na-enweghị oke sagging ma ọ bụ ntapu.
Melite nrapado
Adhesion bụ ihe dị mkpa n'ime usoro putty ka ọ na-ekpebi ike nke njikọ dị n'etiti putty na mkpụrụ.HPMC enhances adhesion site na-akpụ a mkpa film n'elu mkpụrụ n'elu, na-akwalite n'ibu interlocking na-amụba kọntaktị ebe n'etiti putty na mkpụrụ.Na mgbakwunye, ọdịdị hydrophilic nke HPMC na-enye ya ohere ịmekọrịta ya na putty matrices na substrates, na-akwalite adhesion ọbụna n'elu ihe ịma aka.
njikwa njigide mmiri
Njide mmiri dị oke mkpa maka ọgwụgwọ nke ọma na ihicha usoro putty.HPMC na-arụ ọrụ dị ka onye na-ejigide mmiri site na ịmịnye na idowe mmiri mmiri n'ime usoro ihe omimi ya.Nke a na-egbochi mmịpụ ngwa ngwa nke mmiri site na matrix putty, na-eme ka arụ ọrụ dị ogologo oge na ịnweta hydration zuru oke nke ihe simenti.Njide mmiri a na-achịkwa na-ebelatakwa mbelata na mgbawa n'oge ihicha, na-eme ka ịdịte aka na imecha elu.
Nkwalite arụmọrụ igwe
HPMC na-emeziwanye ihe eji arụ ọrụ nke usoro putty site n'ịkwalite matriks na imeziwanye ịdị n'otu.Polymer na-emepụta njikọ hydrogen na ihe ndị ọzọ dị na putty, na-abawanye ike ya, mgbanwe na nguzogide mmetụta.Na mgbakwunye, ikike imepụta ihe nkiri HPMC na-emepụta ihe mgbochi na-echebe putty site na nrụgide mpụga na ihe gburugburu ebe obibi, na-abawanye ogologo ndụ ya na ogologo ndụ ya.
3.The mmetụta nke HPMC na putty arụmọrụ
Njirimara rheological
HPMC budata emetụta rheological omume nke putty formulations, na-emetụta viscosity, thixotropy na eruba Njirimara.Ntinye uche polymer, ịdị arọ molekụla na ogo nke nnọchi na-ekpebi ogo ngbanwe nke viscosity, na-enye ndị na-emepụta ihe aka ịhazi akụrụngwa rheological ka ihe achọrọ ngwa ngwa.Ndozi kwesịrị ekwesị nke usoro onunu ogwu HPMC na-eme ka owuwu kacha mma na arụmọrụ ngwa.
adhesion
Ọnụnọ nke HPMC na-eme ka ike njikọ nke nhazi nke putty dịkwuo mma, na-eme ka adhesion dị mma na ihe dị iche iche gụnyere ihe, osisi, metal na masonry.Ndị na-emepụta ihe nwere ike ịhazigharị ọkwa HPMC na itinye uche iji nweta ihe ejikọtara ọnụ, na-eme ka ndakọrịta na ihe dị iche iche dị elu na ọnọdụ gburugburu ebe obibi.Nkwadebe nke ọma na usoro ngwa ngwa nwere ike imeju mmetụta na-akwalite njikọ nke HPMC iji bulie ike nkekọ na ogologo ogologo oge.
ndị nnupụisi mmiri
HPMC na-enyere aka melite nguzogide mmiri nke usoro putty site n'ịchịkwa njide mmiri na ibelata ike mmiri.Polymer na-emepụta ihe nkiri hydrophilic nke na-egbochi ntinye mmiri n'ime matrix putty, na-egbochi ọzịza, mmebi na ọnwụ nke ihe eji arụ ọrụ.Nhọrọ nke ọma nke akara ule HPMC na ihe mgbakwunye nwere ike ịkwalite nguzogide mmiri, na-eme ka putty dị mma maka ngwa ime ụlọ na n'èzí kpughere mmiri.
4. Mechanical ike na anwụ ngwa ngwa
Itinye HPMC n'ime usoro putty na-abawanye ike igwe, ịdịte aka, na iguzogide mgbawa, mbelata, na ihu igwe.Polymer na-arụ ọrụ dị ka onye na-agba ume, na-ewusi matrix putty ike ma na-eme ka njikọ dịkwuo mma.Na mgbakwunye, ikike HPMC ịchịkwa njide mmiri na ịkwalite ọgwụgwọ kwesịrị ekwesị na-enyere aka ịkwalite ike njikọ yana ịrụ ọrụ ogologo oge.Ndị na-emepụta ihe nwere ike ịkwalite usoro onunu ogwu na usoro nhazi nke HPMC iji nweta nguzozi zuru oke nke akụrụngwa na ịdịte aka.
5. Atụmatụ bara uru maka nhazi
Nhọrọ nke akara ule HPMC
Mgbe ị na-ahọrọ akararị HPMC kwesịrị ekwesị maka nhazi putty, ndị na-emepụta ihe ga-atụle ihe dị iche iche, gụnyere viscosity, ogo nke nnọchi, na ndakọrịta na ihe ndị ọzọ.Akara viscosity dị elu dabara adaba maka itinye akwa na ngwa kwụ ọtọ, ebe akara viscosity dị ala dabara adaba maka textures dị nro ma dị mfe ịgbasa.Ndị na-emepụta ihe kwesịkwara ịhụ na ndakọrịta n'etiti HPMC na ihe mgbakwunye ndị ọzọ dị ka ihe ndochi, pigmenti, na ihe nchekwa iji zere nsogbu ndakọrịta na mmebi arụmọrụ.
njikarịcha dose
Ọnụ ego kacha mma nke HPMC dabere n'ihe ndị dị ka akụrụngwa achọrọ, usoro ngwa, ụdị mkpụrụ na ọnọdụ gburugburu ebe obibi.Ndị na-emepụta ihe kwesịrị ime nyocha nke ọma iji chọpụta ọgwụ kachasị dị irè nke na-arụ ọrụ a chọrọ n'emebighị ọnụ ahịa.Iji HPMC emebiga ihe ókè nwere ike ịkpata viscosity gabigara ókè, ihe isi ike itinye n'ọrụ, na oge ihicha ogologo oge, ebe iji ya eme ihe nwere ike ịkpata njikwa rheology ezughi oke yana ibelata arụmọrụ.
6. Ndakọrịta na mgbakwunye ndị ọzọ
HPMC na-emekọrịta ihe na mgbakwunye dị iche iche a na-ejikarị eme ihe n'ụdị putty, dị ka thickeners, dispersants na preservatives.Ndị na-emepụta ihe kwesịrị iji nlezianya nyochaa ndakọrịta na mmekọrịta nke HPMC na ihe ndị ọzọ iji hụ na arụmọrụ na nkwụsi ike kacha mma.Nnwale ndakọrịta, gụnyere nyocha rheological na nyocha nchekwa ogologo oge, na-enyere aka ịchọpụta mmekọrịta ọ bụla nwere ike ime ma ọ bụ okwu nhazi n'oge mmalite usoro mmepe ka enwere ike ime mgbanwe na njikarịcha.
7. Ngwa teknụzụ
Usoro ngwa kwesịrị ekwesị dị oke mkpa iji bulie arụmọrụ nke usoro putty nwere HPMC.Ndị na-emepụta ihe kwesịrị inye ntụziaka doro anya na ntụziaka maka nkwadebe elu, ịgwakọta, ngwa na ọgwụgwọ iji hụ na nsonaazụ kacha mma.Iji nweta adhesion achọrọ, ire ụtọ na ịdịte aka, enwere ike ịchọ usoro dị ka priming, ntụ oyi na mkpuchi ọtụtụ oyi akwa.Ọzụzụ na agụmakwụkwọ nke ndị ọrụ ihe owuwu na-eme ka ọ pụta ìhè na-agbanwe agbanwe, nsonaazụ dị elu, na-ebelata ọrụ nrụpụta yana okwu akwụkwọ ikike.
Oge nzipu: Feb-22-2024