HPMC enhances adhesion na mkpuchi ngwa

1. Basic Ọdịdị na Njirimara nke HPMC

HPMC bụ ihe etherified cellulose, nke a na-emepụta site na mmeghachi omume etherification nke otu hydroxyl nke cellulose molecule na methyl na hydroxypropyl ogige. Ọdịdị molekụla nke HPMC nwere ọkpụkpụ cellulose na ihe ndị ọzọ, na ihe onwunwe ya nwere ike gbanwee site na iwebata ihe dị iche iche. Nke a molekụla Ọdịdị na-enye HPMC magburu onwe mmiri solubility, ndim, adhesiveness na film-akpụ Njirimara.

Njirimara adhesion nke HPMC nwere njikọ chiri anya na ike hydration ya. Mgbe agbazere HPMC n'ime mmiri, ụmụ irighiri ihe ndị ahụ na-amịkọrọ mmiri wee zaa ka ha mepụta usoro gel nwere viscosity dị elu. Nke a jel nwere ike adsorption na adhesion, nwere ike mejupụta pores n'elu nke mkpụrụ ahụ, na-eme ka ịdị nro dị elu na ịdị n'otu nke mkpụrụ osisi ahụ, ma si otú a na-eme ka ọrụ nkedo nke mkpuchi ahụ dịkwuo mma.

2. Usoro ọrụ nke HPMC na mkpuchi

N'ime ihe mkpuchi mkpuchi, ọrụ bụ isi nke HPMC bụ onye na-ekpo ọkụ, onye na-egbochi ya na onye na-eme ka ọ dị ike, na ọrụ ndị a na-emetụta kpọmkwem ihe mkpuchi nke mkpuchi.

2.1 Mmetụta dị arọ

HPMC bụ ihe dị irè thickener nke nwere ike budata dịkwuo viscosity nke mkpuchi usoro na-enye mkpuchi ọma ewu arụmọrụ. Viscosity nke mkpuchi bụ ihe dị mkpa na-emetụta mmiri ya, mgbasa na ike mkpuchi na mkpụrụ. Site n'ịgbanwe ego nke HPMC agbakwunyere, enwere ike nweta mkpuchi nke viscosities dị iche iche iji mezuo ihe owuwu dị iche iche. Viscosity mkpuchi kwesịrị ekwesị na-enyere aka na-ekesa mkpuchi nke ọma n'elu ihe nkedo ahụ ma mepụta ihe nkiri mkpuchi dị mma, si otú a na-eme ka adhesion nke mkpuchi ahụ dịkwuo mma.

2.2 Mmetụta nkwusioru na nkwụsi ike

N'ime ihe mkpuchi mmiri, ihe ndị siri ike dị ka pigmenti na ihe ndị na-ejuputa kwesịrị ka a gbasaa n'otu n'otu na usoro mkpuchi iji gbochie sedimentation na stratification. HPMC ngwọta nwere magburu onwe nkwusioru na nkwụsi ike, na ike na-etolite a netwọk Ọdịdị na mkpuchi usoro, n'ụzọ dị irè wrapping na-akwado siri ike irighiri ime ka ha evenly kesaa. Nkwụsịtụ na nkwụsi ike dị mma nwere ike hụ na mkpuchi ahụ na-edobe otu n'oge nchekwa na ihe owuwu, belata ntinye nke pigmenti ma ọ bụ ihe ndị na-emepụta ihe, ma mee ka ọdịdị ọdịdị dị mma na ntanye nke mkpuchi.

2.3 Mmetụta imepụta ihe nkiri

HPMC nwere ike ịmepụta ihe nkiri siri ike ma nwee ike ịmepụta ihe nkiri na-agbanwe agbanwe n'oge usoro ihicha nke mkpuchi. Ihe nkiri a nwere ike ọ bụghị naanị ịkwalite ike nrụpụta nke mkpuchi n'onwe ya, kamakwa na-arụ ọrụ nchịkọta n'etiti mkpụrụ na mkpuchi. Mgbe emechara ihe nkiri HPMC, ọ nwere ike mejupụta obere mgbape na ebe na-ezighi ezi n'elu mkpụrụ ahụ, si otú ahụ na-abawanye mpaghara kọntaktị n'etiti mkpuchi na mkpụrụ ahụ ma na-eme ka adhesion anụ ahụ nke mkpuchi ahụ dịkwuo mma. Tụkwasị na nke ahụ, ọrụ mmepụta ihe nkiri nke HPMC nwere ike ibelata nkwụsịtụ na peeling n'elu mkpuchi ahụ, na-eme ka ọ dịkwuo ogologo oge nke mkpuchi ahụ.

3. Ngwa nke HPMC na ụdị mkpuchi dị iche iche

Dabere na ụdị mkpuchi dị iche iche, nkwalite nkwalite nke HPMC ga-adịkwa iche. Ndị a bụ ọmụmaatụ ngwa HPMC n'ọtụtụ ụdị mkpuchi a na-ahụkarị:

3.1 Ihe mkpuchi mmiri

Na mkpuchi mmiri na-adabere na mmiri, HPMC nwere ike imeziwanye adhesion na ịrụ ọrụ nke mkpuchi site na mmetụta dị iche iche dị ka ịgbatị, nkwusioru na nhazi ihe nkiri. Ebe ọ bụ na HPMC nwere ezigbo mmiri solubility, ọ nwere ike ịgbasa ngwa ngwa na mkpuchi mmiri iji mepụta usoro ngwọta kwụsiri ike. Tụkwasị na nke ahụ, HPMC nwekwara ike imeziwanye njide mmiri nke mkpuchi mmiri na-eme ka mmiri dị elu ma gbochie mgbawa na mbelata nrapado kpatara oke mmiri na-efunahụ n'oge usoro ihicha.

3.2 Ngwa ngwa akọrọ

A na-ejikwa HPMC na ngwa ngwa akọrọ. Ngwa ngwa akọrọ bụ ihe a na-ejikarị eme ihe n'ịchọ ụlọ, nke a na-agwakọta ya na mmiri iji mepụta mkpuchi. Na usoro a, ndị thickening na film-akpụ mmetụta nke HPMC nwere ike melite bonding ike nke ngwa agha, na-eme ka ọ dịkwuo ike mmasị na substrates dị ka mgbidi ma ọ bụ ala. Tụkwasị na nke ahụ, ihe onwunwe mmiri nke HPMC nwere ike igbochi mmiri dị na ngwa ngwa ịpụpụ ngwa ngwa, si otú ahụ na-eme ka adhesion nke ngwa agha ahụ n'oge a na-ewu na ihicha.

3.3 mkpuchi mkpuchi

N'ime mkpuchi mkpuchi, a na-eji HPMC eme ihe dị ka ihe na-eme ka ọ dịkwuo mma nke ukwuu. Ọdịdị nke colloidal nke e mepụtara site na ngwọta ya nwere ike ọ bụghị nanị na-eme ka adhesion anụ ahụ dị n'etiti mkpuchi na ihe nkedo ahụ, ma na-eme ka ike na-ejikọta ọnụ nke nrapado ahụ, na-eme ka mkpuchi ahụ na-eme ka ọ dị mma n'okpuru ọnọdụ gburugburu ebe obibi dị iche iche.

4. Uru nke HPMC na ịkwalite adhesion

Dị ka ihe mgbakwunye na-arụ ọrụ na mkpuchi, HPMC nwere uru ndị a n'ịkwalite adhesion:

Mmiri dị oke mma na ndakọrịta: HPMC nwere ike gbazee n'ụdị ihe mgbaze dị iche iche ma dị mma na mgbakwunye ndị ọzọ ma ọ bụ ihe ndị ọzọ na-enweghị mmeghachi omume ọjọọ, na-eme ka nkwụsi ike nke mkpuchi mkpuchi.

Nrụpụta ihe owuwu mara mma: HPMC nwere ike imeziwanye mmiri na mgbasa nke mkpuchi ahụ, hụ na a na-ekpuchi mkpuchi ahụ nke ọma n'elu mkpụrụ ahụ, ma welie adhesion ya.

Meziwanye mgbanwe na ịdịte aka nke mkpuchi: Mmetụta na-emepụta ihe nkiri nke HPMC nwere ike ime ka mgbanwe nke mkpuchi ahụ dịkwuo mma, na-eme ka ọ ghara ịdị na-agbawa ma ọ bụ kpochapụ mgbe a na-agbanye ike ma ọ bụ mgbanwe gburugburu ebe obibi, na ịgbatị ndụ ọrụ nke mkpuchi.

Nchedo gburugburu ebe obibi: HPMC bụ ihe na-adịghị egbu egbu na nke na-adịghị emerụ ahụ nke na-emezu ihe achọrọ nke ụlọ ọrụ mkpuchi nke oge a maka nchebe gburugburu ebe obibi na ahụike.

Dị ka ihe mgbakwunye na-arụ ọrụ, a na-eji HPMC eme ihe na mkpuchi, karịsịa n'ịkwalite adhesion. Site n'ịdị arọ ya, nkwusioru, imepụta ihe nkiri na ọrụ ndị ọzọ, HPMC nwere ike imeziwanye adhesion nke mkpuchi nke ọma ma welie àgwà na ịdịte aka nke mkpuchi. Site na ọganihu na-aga n'ihu nke teknụzụ mkpuchi, atụmanya ngwa nke HPMC ga-aba ụba ma ọ ga-anọgide na-arụ ọrụ dị mkpa na usoro mkpuchi dị iche iche.