HPMC VS HEC: Itandukaniro 6 Ugomba Kumenya!

Tanga:

Hydroxypropylmethylcellulose (HPMC) na hydroxyethylcellulose (HEC) byombi ni inyongeramusaruro zikoreshwa cyane mu nganda z'ibiribwa, ubwiza n'imiti. Izi mvange za cellulose zifite amahirwe menshi yo gukoreshwa bitewe n'uko zishonga mu mazi, zigakomera, kandi zikaba zifite ubushobozi bwo gukora filime neza.

1. Imiterere ya chimique:

HPMC ni polymeri ikoze mu buryo bwa sillulose. Ikorwa hakoreshejwe uburyo bwa shimi bwo guhindura cellulose karemano wongeramo propylene oxide na methyl chloride. HEC nayo ni ubwoko bwa cellulose ikomokaho, ariko ikorwa hakoreshejwe uburyo bwa methyl oxide ikoreshwa mu guhindura cellulose karemano hanyuma ikayakoresha mu kuyitunganya.

2. Gushonga:

HPMC na HEC byombi birashonga mu mazi kandi bishobora gushonga mu mazi akonje. Ariko ubushobozi bwo gushonga bwa HEC buri hasi ugereranije na HPMC. Ibi bivuze ko HPMC ishobora gushonga neza kandi ishobora gukoreshwa byoroshye mu buryo bworoshye.

3. Ubucucike:

HPMC na HEC bifite imiterere itandukanye ya viscosity bitewe n’imiterere yabyo ya shimi. HEC ifite uburemere bwa molekile n’imiterere y’ubucucike kurusha HPMC, ibi bikaba biyiha viscosity nyinshi. Kubwibyo, HEC ikunze gukoreshwa nk'umubyibuho mu miterere isaba viscosity nyinshi, mu gihe HPMC ikoreshwa mu miterere isaba viscosity nke.

4. Gukina filime:

HPMC na HEC byombi bifite ubushobozi bwiza bwo gukora filime. Ariko HPMC ifite ubushyuhe buke bwo gukora filime, bivuze ko ishobora gukoreshwa ku bushyuhe buke. Ibi bituma HPMC irushaho kuba nziza mu gukoresha filime zisaba igihe cyo kuma vuba no gufatana neza.

5. Gutuza:

HPMC na HEC ntibihinduka mu gihe hari pH nyinshi n'ubushyuhe bwinshi. Ariko, HEC irushaho kwitabwaho n'impinduka za pH kurusha HPMC. Ibi bivuze ko HEC igomba gukoreshwa mu buryo bufite pH kuva kuri 5 kugeza kuri 10, mu gihe HPMC ishobora gukoreshwa mu buryo bwagutse bwa pH.

6. Gukoresha:

Imiterere itandukanye ya HPMC na HEC ituma bikoreshwa mu buryo butandukanye. HEC ikunze gukoreshwa nk'ikintu gikomeza ubushyuhe mu buryo bw'ubwiza n'imiti. Ikoreshwa kandi nk'ikintu gifunga kandi gishyiraho firime mu buryo bw'ibinini. HPMC ikoreshwa nk'ikintu gikomeza ubushyuhe, gitera imbaraga, kandi gitera firime mu buryo bw'ibiribwa, imiti, n'ubwiza. Ikoreshwa kandi nk'ikintu gitera feri mu buryo bumwe na bumwe bw'ibiribwa.

Mu gusoza:

HPMC na HEC byombi ni ibikomoka kuri selulosi bifite imiterere yihariye ikwiriye gukoreshwa mu buryo butandukanye. Gusobanukirwa itandukaniro riri hagati y’ibi binyobwa bibiri bishobora kugufasha guhitamo ibikwiriye guteka. Muri rusange, HPMC na HEC ni ibinyobwa byizewe kandi bifite akamaro bitanga inyungu nyinshi ku nganda zikora ibiribwa, ubwiza n’imiti.