Niki pH ituje ya hydroxyethylcellulose?

Hydroxyethylcellulose (HEC) ni polymer yamazi yamazi akoreshwa cyane mubikorwa bitandukanye nka adhesives, coatings, nibicuruzwa byita kumuntu. PH ihagaze neza ya HEC biterwa nibintu byinshi, harimo urwego rwihariye rwa HEC, pH urwego rwimikorere, hamwe nigihe cyo guhura nibidukikije bya pH.

HEC mubusanzwe ihagaze neza muri pH ya 2-12, ikubiyemo aside irike ya alkaline. Nyamara, kumara igihe kinini kumiterere ya pH ikabije birashobora gutuma HEC itesha agaciro, bikaviramo gutakaza imiterere yabyo kandi igahinduka.

Ku gaciro ka pH aside, munsi ya pH ya 2, HEC irashobora kwandura hydrolysis, bigatuma kugabanuka kwibiro bya molekile no kugabanuka kwijimye. Ku gipimo kinini cyane cya alkaline pH, hejuru ya pH 12, HEC irashobora kwandura hydrolysis ya alkaline, biganisha ku gutakaza imiterere yabyo kandi ikomeza.

Ihinduka rya pH rya HEC rishobora kandi guterwa no kuba hariho indi miti mu kuyikora, nk'umunyu cyangwa surfactants, bishobora kugira ingaruka kuri pH n'imbaraga za ionic z'umuti. Rimwe na rimwe, kongeramo aside cyangwa base birashobora gukenerwa kugirango uhindure pH kandi ugumane igisubizo cyumuti wa HEC.

Muri rusange, HEC muri rusange ihagaze neza mugice kinini cya pH, ariko ni ngombwa gusuzuma uburyo bwihariye bwo gusaba no kubishyiraho kugirango HEC ikomeze imitungo yifuza mugihe runaka.