Eteri ya selulosibishobora kunoza cyane imikorere ya mortila itose, kandi ni inyongeramusaruro nyamukuru igira ingaruka ku mikorere y’ubwubatsi bwa mortila. Guhitamo neza eteri za cellulose z’ubwoko butandukanye, ubukana butandukanye, ingano zitandukanye z’uduce, ingano zitandukanye z’ubukana n’ingano y’inyongera bizagira ingaruka nziza ku kunoza imikorere ya mortila yumye.
Hariho kandi isano nziza hagati y’uburyo sima ikora n’uburyo ikoreshwa muri eteri ya selulose. Eteri ya selulose ishobora kongera cyane ubukana bwa sima. Uko ikoreshwa ari nini, niko ingaruka zigaragara cyane. Umuti w’amazi wa selulose eteri ufite ubukana bwinshi ufite thixotropy nyinshi, ari na wo muco ukomeye wa eteri ya selulose.
Ingaruka zo gukomera ziterwa n'urugero rwa polymerization ya etha ya selulosi, ubwinshi bw'umuti, igipimo cyo gukata, ubushyuhe n'ibindi. Imiterere ya gelling y'umuti ni umwihariko wa alkyl cellulose n'ibikomoka kuri yo byahinduwe. Imiterere ya gelation ifitanye isano n'urwego rwo gusimbuza, ubwinshi bw'umuti n'inyongera. Ku bikomoka kuri hydroxyalkyl byahinduwe, imiterere ya gel ifitanye isano n'urwego rwo guhindura hydroxyalkyl. Umuti wa 10%-15% ushobora gutegurwa kuri MC na HPMC bifite ubukana buke, umuti wa 5%-10% ushobora gutegurwa kuri MC na HPMC bifite ubukana buri hagati, naho umuti wa 2%-3% ushobora gutegurwa gusa kuri MC na HPMC bifite ubukana bwinshi. Ubusanzwe ishyirwa mu byiciro rya viscosity ya etha ya selulosi naryo rishyirwa mu byiciro bya 1%-2%.
Ubwinshi bw'uturemangingoeteri ya seluloseifite ubushobozi bwo gukuba cyane. Polymers zifite uburemere butandukanye bwa molekile zifite ubushyuhe butandukanye mu gisubizo kimwe. Ubunini buri hejuru. Ubushyuhe bw'intego bushobora kugerwaho gusa wongeyeho ingano nini ya cellulose ether ifite uburemere buke bwa molekile. Ubushyuhe bwayo ntibushingira cyane ku gipimo cyo gukata, kandi ubushyuhe bwinshi bugera ku bushyuhe bw'intego, kandi ingano ikenewe yo kongeramo ni nto, kandi ubushyuhe bushingiye ku bushyuhe bw'inyongera. Kubwibyo, kugira ngo habeho uburinganire runaka, ingano runaka ya cellulose ether (ubwinshi bw'igisubizo) n'ubushyuhe bw'igisubizo bigomba kwemezwa. Ubushyuhe bwa gel bw'igisubizo nabwo buragabanuka ku murongo ukurikije ubwiyongere bw'ubwinshi bw'igisubizo, na gel ku bushyuhe bw'icyumba nyuma yo kugera ku bushyuhe runaka. Ubushyuhe bwa HPMC ni bwinshi cyane ku bushyuhe bw'icyumba.
Igihe cyo kohereza: 28 Mata 2024