HPMC (hydroxypylthylthylthylcelllose) bụ ezigbo mgbakwunye ma bụrụ nke ọma na-ejikwa ya na usoro nke mkpuchi na eserese. Otu n'ime ọrụ ya bụ ime ka njikwa viscosise, nke na-adịghị mma maka oology nke mkpuchi na eserese, kamakwa ọ na-eme ka ọrụ owuwe ihe nkiri na ogo ikpeazụ.
1. Njirimara Njirimara nke HPMC
HPMC bụ onye na-abụghị nke ionic na-abụghị nke nwere ezigbo mmiri sossible na ọnya afọ. Ọ nwere ike ịgbasa ma mepụta ngwọta carfụl na ọnọdụ dị iche iche na ụkpụrụ plọgị. Usoro ihe eji eme ihe nke HPMC bu ime ihe eji eme ihe site na njikọta netwọdi na van der Waals ike, si otú a na-emetụta ihe ndị na-adịghị mma nke mkpuchi nke mkpuchi ma ọ bụ ihe osise. Visal viscosit na-agbanwe agbanwe na mgbanwe na ịta, ọnọdụ okpomọkụ, oke mmiri na ihe ndị ọzọ, nke na-eme ka ngwa ya na eserese nwere nnukwu oghere.
2. Ọrụ nke HPMC na mkpuchi na eserese
Mgbanwe viscosity: Ọrụ bụ isi nke HPMC bụ idozi viscosity nke sistemụ ahụ. Na mkpuchi na ihe osise, viscosity bu oke ihe di nkpa nke na-emetụta ihe owuwu, na-arị elu, na ihe nkiri ikpeazụ nke ihe ahụ. HPMC nwere ike ịchịkwa viting site na ịgbanwe usoro molecular ma ọ bụ ịta ahụhụ, na-ejide nkwụsi ike na ọrụ, njem na owuwu.
Njikwa nke Rheological: HPMC na-enye mkpuchi dị mma ma ọ bụ na-agba ya ezigbo vieologity ma ọ bụrụ na ị na-egbochi ndapụta, na-eme ka ọ dị mfe itinye akwụkwọ. Nke a bụ ihe dị mkpa maka ịrụ ọrụ owuwu nke mkpuchi mkpuchi nke mkpuchi mkpuchi, karịchaa mgbe spraying, brushing ma ọ bụ na-enyere aka imezu uwe elu na akwa mkpuchi.
Ọrụ mgbochi: mgbe etinyere mkpuchi ma ọ bụ eserese na vetikal na vetikal na-ahụ, ya bụ, na-eme ka ihe nkiri na-efe efe, na-ebute akara ngosi na akara ngosi. HPMC na - egbochi ihe na - akpachapụ anya site na ịkwalite viscosity na Thixotropy nke sistemụ ahụ, na - agbasi ike nkwụsi ike nke mkpuchi mgbe etinyere na vetikal.
Mmetụta mgbochi na-egbochi: na mkpuchi nwere ụcha ma ọ bụ ndị filters ma ọ bụ fins, pigments ma ọ bụ frems na-adịkarị nkụ, na-emetụta ịdị n'otu nke mkpuchi. HPMC na-akwụsịlata nke na-ada ụda nke ụmụ irighiri ihe site na ịba ụba viscosity nke sistemụ ahụ. N'otu oge ahụ, ọ na-edobekwa nkwusioru ya na agba site na isonye na-akụ, na-ejide na agba ahụ na-agbanwe agbanwe na-agbanwe agbanwe n'oge usoro owuwu.
Meziwanye ebe nchekwa: N'oge nchekwa ogologo oge, agba ahụ na-adịkarị mfe, cogulation ma ọ bụ nkụda mmụọ. Mgbakwunye nke HPMC nwere ike ime ka mmachi nkwụsi ike na viscosis na ụdị agba ahụ, si otú ahụ na-agbaga na nchekwa ngwaahịa na-egbochi ngwaahịa na-adịghị mma.
3. Ihe na-emetụta njikwa viscosis na HPMC
Intata: Nụrụ nke HPMC bụ ihe dị iche iche na-emetụta viscosity nke agba ma ọ bụ tee. Dị ka ịta nke HPMC na-abawanye, viscosity nke sistemụ ga-abawanye nke ukwuu. Maka mkpuchi nke chọrọ viocosity dị elu, n'ụzọ kwesịrị ekwesị ịbawanye ego HPMC nwere ike nweta ọkwa vicet. Agbanyeghị, ịta ahụhụ dị elu nwekwara ike ime ka usoro ahụ bụrụ ndị na-ele anya ma na-emetụta arụmọrụ owuwu. Ya mere, ọ dị mkpa ijikwa ego HPMC kwukwara dabere na ọnọdụ ngwa a kapịrị ọnụ na ụlọ ọrụ.
Ibu Ilucular: Ibu molecular arọ nke Hpmc bụkwa ihe dị mkpa na-emetụta viscosity. HPMC nwere oke molecular na-etolite usoro netwọọk na ngwọta ya, nke nwere ike ịbawanye vity na-enweghị atụ; Ọ bụ ezie na HPMC na oke molecular dị ala na-egosi na viscosity. Site na ịhọrọ HPMC nwere ihe dị iche iche molecular, enwere ike idozigharị ihe mkpuchi ma ọ bụ eserese iji gboo mkpa owuwu dị iche iche.
Okpomoku: viscosity nke hpmc tinyere na-abawanye okpomọkụ. Ya mere, mgbe ị na-ewulite na gburugburu ọnọdụ okpomọkụ dị elu, ọ dị mkpa ịhọrọ ụdị HPMC dị mma na-eguzogide ọnọdụ okpomọkụ ma ọ bụ n'ụzọ dabara adaba na usoro ihe nkiri na ogo ihe nkiri dị n'okpuru elu ọnọdụ okpomọkụ.
PH PHOD: HPMC kwụsiri ike na mbara igwe, mana acid acid na alkali ga-emetụta nkwụsi ike ya. Na acid acid ma ọ bụ gburugburu alkali, Hpmc nwere ike imebi ma ọ bụ daa, na-ebute mbenarị na viscosity. Ya mere, mgbe ị na-edebe usoro, hụ na uru PH bara uru nke sistemụ ahụ bụ ihe na-adịghị mma iji na-enwe mmetụta njikwa viscosity nke HPMC.
Shear Short: HPMC bụ nnukwu osisi dị nro, ya bụ, na viscosis ya ga-belatara nke ukwuu na ọnụego shiee. Ngwongwo a dị ezigbo mkpa na usoro owuwu ihe owuwu ahụ, n'ihi na mgbe a na-akwọ, na-efegharị, na HPMC nwere ike ịkwalite arụmọrụ owuwu site na-ebelata viscosity site na ibelata viscosity. Mgbe emechara ụlọ ọrụ ahụ, a na-apụ apụ apụ apụ n'anya, na HPMC nwere ike iweghachi vieti ahụ iji hụ na otu fim ahụ.
4. Ngwa nke HPMC na sistemụ mkpuchi dị iche iche
A na-ejikarị mkpuchi mmiri: A na-eji HPMC mee ihe n'ọtụtụ ebe dabere na mmiri. Ọ nweghị ike iji ya mee ihe dị ka nke na-eto eto, kamakwa dị ka enyemaka na-ese ihe na iji kwụsie ike. Na sistemu sitere na sistemu sitere na mmiri, HPMC nwere ike iwelie viocosity nke mkpuchi, melite ya rhiology na ọkwa, ma na-egbochi ịgba nedination na ịka njọ. N'otu oge ahụ, ọ nwekwara ike ime ka mmiri na-eguzogide mmiri na sctub na-eguzogide nke ihe nkiri ahụ ma gbasaa ndụ ọrụ nke mkpuchi.
Colonings Cowvent-Dabere: Ọ bụ ezie na a na-ejikarị HPMC na-ejikọkarị ya na mkpuchi akwa, enwere ike iji ya mee ihe dị ka ihe enyemaka. Karịsịa na akụrụngwa dị ala (Volu) nwere ike inye njikwa ọhụụ dị mkpa na mmegharị ahụ dị mkpa, na -ebelata iji ihe mgbado chọrọ.
Eti ntụ ntụ: HPMC nwere ike ịgba mbọ hụ na mkpuchi ntụ ntụ adịghị mfe iji efe efe n'oge owuwu ihe owuwu, mgbe ị na-eme ka ịdị n'otu na njupụta nke ihe nkiri a na-eme.
HPMC na-enweta njikwa viscosit na mkpuchi ma na-ese ihe site na akụrụngwa ya pụrụ iche. Ọ nweghị ike idozi viscosity nke usoro, kamakwa melite oolog nke mkpuchi, welie ihe mgbochi na Njirimara Njirimara na Njirimara Nchọsi. Dabere na sistemụ mkpuchi dị iche iche na ihe owuwu, site na idozi ibu, oke molecular nwere ike ịchịkwa nke ọma, si otú ahụ na-eme ka owuwu nke mkpuchi na ogo mkpuchi ikpeazụ.
Oge Post: Sepp-13-2024