I-Cellulose Ether iyi-polymer yokwenziwa eyenziwe kusuka ku-cellulose yemvelo ngokuguqulwa kwamakhemikhali. I-Cellulose Ether iyinto etholwa yiselula yemvelo. Ukukhiqizwa kwe-cellulose ether kuhlukile kwa-applemers zokwenziwa. Izinto zayo eziyisisekelo kakhulu ziyi-cellulose, i-polymer yemvelo yemvelo. Ngenxa yesehlakalo sesakhiwo semvelo se-cellulose, i-cellulose uqobo ayinakhono ukusabela nabenzeli bokuthembela. Kodwa-ke, ngemuva kokwelashwa kwe-ejenti yokuvuvukala, izibopho eziqinile ze-hydrogen phakathi kwamaketanga amamolekyuli namaketanga abhujisiwe, futhi ukukhishwa okusebenzayo kweqembu le-hydroxyl kuba yi-alkali cellulose esebenzayo. Thola i-cellulose ether.
Izakhiwo ze-Cellulose Afers zincike ohlotsheni, inombolo kanye nokusatshalaliswa kwabangeniswa esikhundleni. Ukuhlukaniswa kwe-cellulose ether kuyahlukaniswa ngokuya ngohlobo lwe-ethertuent, degree yokuthezeka, ukugcwala kanye nezinto ezihlobene nezicelo. Ngokusho kohlobo lokufakazelwa okufakwa esikhundleni se-molecular chain, kungahlukaniswa nge-monothert ne-ether exubile. I-MC sivame ukuyisebenzisa i-monother, futhi i-HPMC iyi-ether exubile. I-Methyl Cellulose Ether MC ngumkhiqizo ngemuva kweqembu le-hydroxyl kuyunithi le-glucose le-mortule yemvelo lifakwa esikhundleni se-methoxy. Kungumkhiqizo otholwe ngokufaka ingxenye yengxenye yeqembu le-hydroxyl kuyunithi eneqembu le-methoxy kanti enye ingxenye ne-hydroxyproppyl group. Ifomula yesakhiwo [C6H7O2 (oh) 3-MN (OCH3) m [OCH2CH (OH.CHWEPHESHE
Ngokuya nge-solubity, ingahlukaniswa nge-ionic ne-nonic. Izithambiso ze-Sulluble Sulloble Cellulose ezingezona zamanzi zihlanganiswa ngokukhethekile ngochungechunge lwe-ALKYL TETER NE-HYDROXYallyl. I-Ionic CMC isetshenziswa ikakhulukazi ezihlalweni zokwenziwa, ukuphrinta kwendwangu nokudaya, ukudla kanye nokuhlola uwoyela. I-Non-ionic MC, i-HPMC, i-hemc, njll. Isetshenziswa kakhulu ezintweni zokwakha, ukumboza kwe-latex, umuthi, i-ejenti yansuku zonke, i-ejenti yokugcina amanzi, i-stabilizer kanye nefilimu eyakha i-ejenti.
Ukukhonjwa kwekhwalithi ye-cellulose ether:
Umphumela wokuqukethwe kwe-methoxyl ngekhwalithi: Ukugcinwa kwamanzi kanye nomsebenzi wokuqina
Ithonya lekhwalithi le-Hydroxyethoxyl / hydroxypropoxyl: okuphezulu okuqukethwe, okungcono ukugcinwa kwamanzi.
Ithonya lekhwalithi ye-viscosity: I-ephakeme ye-polymerization, ikhuphuka i-viscosity kanye nokugcinwa kwamanzi kangcono.
Ithonya Lekhwalithi Ebucayi: The Phecter Ukuhlakazeka kanye Ukuchithwa Kumonga, okusheshayo futhi okufanayo, futhi ukugcinwa kwamanzi okuhlobene kungcono
Umthelela wekhwalithi wokudluliselwa kokukhanya: I-degree degree ye-polymerization, umfaniswano owengeziwe we-polymerization, kanye nokungcola okuncane
Umthelela Wezinga Lokushisa le-GEL: Ukushisa kwe-Gel kwezokwakha kucishe kube ngu-75 ° C
Ithonya lekhwalithi lamanzi: <5%, i-cellulose ether kulula ukumunca umswakama, ngakho-ke kufanele iboshwe futhi igcinwe
Umthelela wekhwalithi yomlotha: <3%, uphakamisa umlotha, ukungcola okwengeziwe
Ithonya lekhwalithi ye-PH: eduze kokungathathi hlangothi, i-ether ye-cellulose inokusebenza okuzinzile phakathi kwe-pH: 2-11
Isikhathi sePosi: Feb-14-2023