Hydroxypropyl methylcellulose (HPMC) bụ ihe mgbakwunye dị iche iche nke a na-ejikarị eme ihe na ụlọ ọrụ ihe owuwu, karịsịa na nhazi mgbidi. HPMC na-enye ọtụtụ uru na-enyere aka melite arụmọrụ na mma nke mgbidi putty. Nke a bụ uru atọ dị mkpa nke iji HPMC na mgbidi putty:
Njide mmiri na ndagide:
Otu n'ime uru ndị dị n'itinye HPMC n'ime mgbidi putty formulations bụ ọmarịcha njide mmiri ya. HPMC bụ polymer hydrophilic, nke pụtara na ọ nwere njikọ siri ike maka mmiri. Mgbe agbakwunyere na mgbidi mgbidi, HPMC na-emepụta ihe nkiri na-edobe mmiri n'akụkụ akụkụ ciment, na-egbochi mmiri ịpụ ngwa ngwa n'oge usoro ọgwụgwọ.
Ikike nke HPMC iji jide mmiri na ngwakọta nwere ọtụtụ uru maka ngwa putty mgbidi. Nke mbụ, ọ na-eme ka ọrụ nke putty dịkwuo mma ma gbasaa oge ya, na-eme ka ọ dịkwuo mfe ịgbasa na ire ụtọ n'elu mkpụrụ. Nke a bara uru karịsịa n'ọrụ ihe owuwu, ebe ndị ọrụ nwere ike ịchọ oge ka ukwuu iji tinye ma mechaa mgbidi mgbidi ahụ tupu ya edozi.
Na mgbakwunye, ikike ijide mmiri nke HPMC na-enyere aka melite ntinye nke putty na mkpụrụ. Ịnweta mmiri dị ogologo oge na-eme ka mmiri dị mma nke akụkụ ciment, na-eme ka njikọ siri ike na nke na-adịte aka n'etiti mgbidi putty na n'okpuru ala. Nke a dị oke mkpa maka ịrụ ọrụ ogologo oge na iguzosi ike n'ezi ihe nke mgbidi mgbidi a na-etinye.
Melite njikọta na nguzogide sag:
HPMC na-arụ ọrụ dị ka thickener na ihe nkedo na mgbidi putty formulations, na-eme ka ihe si n'otu ọnụ. Ọnụnọ nke HPMC na-enyere aka ịnọgide na-eguzosi ike n'ezi ihe na nhazi nke putty, na-egbochi ya ka ọ ghara ịdaba ma ọ bụ daa mgbe etinyere ya na elu kwụ ọtọ. Nke a dị mkpa karịsịa maka ngwa n'elu ma ọ bụ mgbe ị na-arụ ọrụ na mgbidi n'akụkụ dị iche iche.
The ndim Njirimara nke HPMC na-enyere aka dịkwuo ọkpụrụkpụ na agbanwe agbanwe nke mgbidi putty, ikwe ka ọ na-rube nke ọma na mkpụrụ na-enweghị na-agba ọsọ ma ọ bụ ntapu. N'ihi ya, mgbidi mgbidi nwere HPMC nwere nnukwu nguzogide sag, na-eme ka ngwa ngwa na-agbanwe agbanwe, karịsịa na elu kwụ ọtọ na elu. Ngwongwo a na-eme ka imecha ya dị nro na nke mara mma.
Na mgbakwunye, nkwalite nkwalite nke HPMC na-enye na-enyere mgbidi putty aka igbochi mgbawa. Polymer na-emepụta ihe nkiri na-agbanwe agbanwe nke na-anabata obere mmegharị na mkpụrụ, na-ebelata ohere nke mgbawa ka oge na-aga. Nke a bụ isi ihe na-arụ ọrụ nke mgbidi mgbidi, dịka mgbawa nwere ike imetụta ọdịdị na ịdịte aka nke mkpuchi etinyere.
Enwetara ike nkedo na njikọ njikọ:
Adhesion bụ isi ihe na-arụ ọrụ nke mgbidi mgbidi, nke na-emetụta kpọmkwem ike njikọ dị n'etiti putty na mkpụrụ. HPMC na-arụ ọrụ dị mkpa n'ịkwalite adhesion site n'ịmepụta ihe nkiri na-ejikọta ọnụ na nke na-agbanwe agbanwe nke na-akwalite njikọ ihu igwe siri ike.
Ikike njide mmiri nke HPMC na-eme ka mmiri zuru ezu dị maka hydration nke cement particle, na-akwalite nhazi nke njikọ siri ike n'etiti mgbidi putty na mkpụrụ. Nke a dị mkpa karịsịa mgbe ị na-etinye putty n'elu porous ma ọ bụ ihe ịma aka, ebe ịnweta ezigbo nrapado nwere ike isi ike karị.
Ọzọkwa, HPMC na-enyere aka ibelata mbelata n'oge ihicha na ọgwụgwọ nke putty mgbidi. Ibelata mbelata na-enyere aka ịnọgide na-enwe mmekọrịta dị n'etiti putty na mkpụrụ, na-eme ka ike nkekọ dịkwuo elu. Ihe si na ya pụta bụ mgbidi mgbidi nke na-agbasosi ike n'ọtụtụ ebe dị iche iche, na-enye arụmọrụ na-adịte aka na iguzogide peeling ma ọ bụ delamination.
Hydroxypropyl methylcellulose (HPMC) na-enye ọtụtụ uru dị ịrịba ama mgbe etinyere ya na nhazi mgbidi. Ngwongwo ya na-ejigide mmiri na-eme ka arụ ọrụ na nrapanye na-arụ ọrụ, ebe ike ya na-ejikọta ya na-enyere aka melite njikọ na nkwụsị sag. Ojiji nke HPMC na mgbidi putty formulations nwere ike n'ikpeazụ inye ndị na-ewu ụlọ ọrụ ndị ọzọ inogide, mara mma na elu-arụmọrụ mkpuchi maka ime na mputa na-ebupụta.
Oge nzipu: Nov-28-2023