Hydroxypropyl methylcellulose ituruka he?

Hydroxypropyl methylcellulose (HPMC) ni polymer ya sintetike ikomoka kuri selile, ikaba isanzwe iba polymer kama igizwe nurukuta rw'utugingo ngengabuzima. HPMC ikorwa muburyo bwo guhindura selile ikoresheje inzira yitwa etherification.

Muri etherification, selile ivurwa hamwe nuruvange rwa oxyde ya propylene na methyl chloride mugihe cyagenwe kugirango habeho hydroxypropyl selile (HPC). HPC noneho irahindurwa ikayivura hamwe na methanol na aside hydrochloric kugirango ikore HPMC.

Ibicuruzwa bya HPMC bivamo ni amazi ashonga, polymer adafite ionic ifite ibintu byinshi byingirakamaro, nko kubika amazi menshi, ubushobozi bwiza bwo gukora firime, hamwe nuburyo bwiza bwo kubyimba no gutuza. Iyi mitungo ituma HPMC yongerwaho ingirakamaro muburyo butandukanye bwo gukoresha, nk'ibikoresho byo kubaka, imiti, n'ibiribwa.

Mugihe HPMC ikomoka kuri selile, ni polymer synthique ikorwa binyuze muburyo bukomeye bwimiti.