Hydroxypropyl methylcellulose (HPMC) bụ ihe mmepụta ihe na-emepụta ihe na-ejikarị eme ihe na mgbidi putty powder formulations, karịsịa maka ime ụlọ na n'èzí ngwa.
HPMC ntụ ntụ iwebata:
Nkọwa na mejupụtara:
Hydroxypropyl methylcellulose, nke a na-akpọ HPMC, bụ cellulose ether gbanwetụrụ nke sitere na cellulose eke. A na-emepụta ya site na cellulose na-emezi kemịkal, carbohydrate dị mgbagwoju anya dị na mgbidi cell osisi. Mgbanwe na-agụnye iwebata hydroxypropyl na methyl dị iche iche n'ime nhazi cellulose, na-eme ka mmiri na-edozi mmiri na nke ukwuu.
Njirimara anụ ahụ na kemịkal:
Solubility: HPMC bụ soluble na mmiri, na-eme ihe ngwọta doro anya na enweghị agba. Enwere ike idozi solubility site n'ịgbanwe ogo nke nnọchi (DS) n'oge usoro nrụpụta.
Viscosity: HPMC na-enye viscosity na-achịkwa ma na-agbanwe agbanwe na ngwọta. Ngwongwo a dị oke mkpa na nhazi mgbidi mgbidi dị ka ọ na-emetụta arụmọrụ na njirimara ngwa nke ihe ahụ.
Gelation thermal: HPMC na-egosipụta gelation thermal, nke pụtara na ọ nwere ike ịmepụta gel mgbe ọ dị ọkụ. Ihe onwunwe a bara uru na ụfọdụ ngwa ebe achọrọ gelling.
Ngwa nke HPMC na mgbidi putty:
Putty mgbidi ime:
1. Njide na nrapado:
HPMC na-eme ka ihe ejikọtara ọnụ nke mgbidi dị n'ime ime, na-eme ka adhesion ka mma na ihe ndị dị ka ihe, stucco ma ọ bụ drywall.
Ọdịdị cellulose nke HPMC gbanwetụrụ na-etolite ihe nkiri dị mkpa n'elu, na-enye njikọ siri ike na nke na-adịgide adịgide.
2. Usoro na mfe nke ngwa:
The akara viscosity nke HPMC na-enye putty magburu onwe workability, ikwe ka ọ na-etinye were were na mfe ime n'elu.
Ọ na-egbochi ịdaba na ntapu n'oge ngwa ma na-eme ka mkpuchi otu.
3. Ndogide mmiri:
HPMC na-arụ ọrụ dị ka onye na-ejigide mmiri, na-egbochi ikuku mmiri ngwa ngwa n'oge usoro ọgwụgwọ. Nke a na-enyere aka melite hydration nke putty, na-ebute mmepe ike dị mma.
Putty mgbidi dị n'èzí:
1. Nguzogide ihu igwe:
HPMC na-akwalite nguzogide ihu igwe nke mpụta mgbidi ma na-echebe megide mmetụta ọjọọ nke ìhè anyanwụ, mmiri ozuzo na mgbanwe okpomọkụ.
Ihe nkiri polymer nke HPMC guzobere na-arụ ọrụ dị ka ihe mgbochi, na-egbochi ntinye mmiri na ịnọgide na-eguzosi ike n'ezi ihe nke mkpuchi.
2. Nguzogide mgbawa:
Mgbanwe nke HPMC na-enye aka na mgbawa mgbawa nke mpụta mgbidi putty. Ọ na-anabata mmegharị mkpụrụ na-enweghị emetụta iguzosi ike n'ezi ihe nke mkpuchi ahụ.
Ngwongwo a dị oke mkpa maka ngwa mpụga nke ekpughere na nrụgide gburugburu ebe obibi.
3. Ogologo oge:
HPMC na-eme ka ịdịte aka nke mpụga putty dịkwuo mma site n'ịkwalite nguzogide ya na abrasion, mmetụta na mkpughe kemịkal.
Ihe nkiri nchebe nke HPMC mere na-enyere aka ịgbatị ndụ mkpuchi ma belata mkpa ọ dị maka nlekọta ugboro ugboro.
Uru nke iji HPMC na mgbidi putty:
1. Ọdịmma kwụsiri ike:
HPMC na-eme ka o doo anya na nhazi mgbidi mgbidi na-aga n'ihu ma na-agbaso ụkpụrụ arụmọrụ achọrọ.
2. Melite ikike ịrụ ọrụ:
The akara viscosity nke HPMC na-enye mma processability, na-eme ka ngwa usoro ọzọ nke ọma na onye ọrụ-enyi na enyi.
3. Kwalite adhesion:
Njirimara nrapado nke HPMC na-enye aka na nrapanye dị mma, na-ahụ na putty na-akwado nke ọma na ụdị dị iche iche.
4. Mgbanwe:
HPMC bụ vasatail na enwere ike iji ya n'ụdị dị iche iche yana enwere ike ịhazi ya iji mezuo ihe achọrọ.
na ngwụcha:
Hydroxypropyl methylcellulose (HPMC) ntụ ntụ bụ isi ihe dị n'ime ime na mpụta mgbidi putty. Njirimara ya pụrụ iche, gụnyere solubility, njikwa viscosity na ikike imepụta ihe nkiri, na-eme ka ọ dị mma maka ịkwalite arụmọrụ na ịdịte aka nke mkpuchi mgbidi. Ma etinyere ya n'ime ụlọ ma ọ bụ n'èzí, mgbidi mgbidi nwere HPMC na-enye àgwà na-agbanwe agbanwe, arụmọrụ ngwa dị mma yana nchebe na-adịte aka megide ihe gburugburu ebe obibi. Dị ka ụlọ ọrụ ihe owuwu na-aga n'ihu na-etolite, ọrụ HPMC na nhazi mgbidi na-anọgide na-adị mkpa iji nweta mmecha dị elu na nkwụsi ike.
Oge nzipu: Jan-25-2024