Ikintu cyo kugabanuka kwijimye mugihe cyo kubika amarangi nikibazo gikunze kugaragara, cyane cyane nyuma yo kubika igihe kirekire, ubwiza bwirangi bugabanuka cyane, bikagira ingaruka kumyubakire nubwiza bwibicuruzwa. Kugabanuka kwijimye bifitanye isano nibintu byinshi, nkubushyuhe, ubushuhe, guhindagurika kwa solvent, polymer degradation, nibindi, ariko imikoranire na selile ya selile yiyongera cyane.
1. Uruhare rwibanze rwa selile
Cellulose ether ni umubyimba usanzwe ukoreshwa cyane mumarangi ashingiye kumazi. Ibikorwa byabo by'ingenzi birimo:
Ingaruka yibyibushye: Ether ya selile irashobora gukora imiyoboro yabyimbye yibice bitatu ikurura amazi, bityo bikongerera ububobere bwa sisitemu no kunoza thixotropy hamwe nubwubatsi bwirangi.
Ingaruka yo guhagarika ihagarikwa: Cellulose ether irashobora gukumira neza iyimuka ryibice bikomeye nka pigment hamwe nuwuzuza irangi kandi bikagumana uburinganire bwirangi.
Umutungo ukora firime: Ether ya Cellulose irashobora kandi kugira ingaruka kumitungo ikora firime irangi, bigatuma igifuniko gifite ubukana nigihe kirekire.
Hariho ubwoko bwinshi bwa ethers ya selile, harimo methyl selulose (MC), hydroxyethyl selulose (HEC), hydroxypropyl methyl selulose (HPMC), nibindi.
2. Impamvu nyamukuru zo kugabanya ubukonje
Mugihe cyo kubika ibifuniko, kugabanuka kwijimye biterwa ahanini nimpamvu zikurikira:
(1) Gutesha agaciro selile ethers
Ingaruka yibyibushye ya selile ya selile mubitambaro biterwa nubunini bwuburemere bwa molekile hamwe nuburinganire bwimiterere yabyo. Mugihe cyo kubika, ibintu nkubushyuhe, acide na alkaline, na mikorobe bishobora gutera kwangirika kwa ether selile. Kurugero, mugihe cyo kubika igihe kirekire, ibice bya acide cyangwa alkaline mubifuniko bishobora hydrolyze urunigi rwa molekile ya selile ya selile, kugabanya uburemere bwa molekile, bityo bikagabanya ingaruka zabyo, bigatuma kugabanuka kwijimye.
(2) Kwimuka guhindagurika no kwimuka
Guhindagurika kwa solvent cyangwa kwimuka kwimuka muri coating birashobora kugira ingaruka kumyuka ya selile ya ether. Mugihe cyo kubika, igice cyamazi kirashobora guhumuka cyangwa kwimuka hejuru yubuso, bigatuma igabanywa ryamazi muri coating itaringaniye, bityo bikagira ingaruka kumubyimba wa ether ya selile kandi bigatuma igabanuka ryubwiza mubice byaho.
(3) Igitero cya mikorobe
Imikurire ya mikorobe irashobora kugaragara mugifuniko iyo ibitswe nabi cyangwa ibidindiza bikagira ingaruka. Microorganismes irashobora kubora ethers ya selile hamwe nibindi byongera ibinyabuzima, bigabanya imbaraga zabyo kandi bigatuma ubwiza bwikibiriti bugabanuka. Amazi ashingiye kumazi, byumwihariko, ni ibidukikije byiza byo gukura kwa mikorobe kuko birimo amazi menshi.
(4) Ubusaza bukabije
Mubihe byubushyuhe bwo hejuru, imiterere yumubiri cyangwa imiti ya selile ya selile ya selile irashobora guhinduka. Kurugero, ethers ya selile ikunda okiside cyangwa pyrolysis mubushyuhe bwinshi, bikaviramo intege nke zingaruka. Ubushyuhe bwo hejuru nabwo bwihutisha guhindagurika no guhumeka amazi, bikarushaho kugira ingaruka ku bwonko.
3. Uburyo bwo kunoza ububiko bwimyenda yububiko
Kugirango ugabanye kugabanuka kwijimye mugihe cyo kubika no kongera igihe cyo kubika igifuniko, ingamba zikurikira zirashobora gufatwa:
(1) Guhitamo selile iburyo
Ubwoko butandukanye bwa selile ethers ifite imikorere itandukanye mubijyanye no kubika neza. Ether ya selile ifite uburemere buke bwa molekuline muri rusange igira ingaruka nziza zo kubyimba, ariko kubika neza kwayo ni muke, mugihe selile ya selile ifite uburemere buke bwa molekile irashobora kugira imikorere myiza yo kubika. Kubwibyo, mugihe utegura formulaire, selile ya selile ifite ububiko bwiza bugomba gutoranywa, cyangwa ether ya selile igomba guhuzwa nibindi binini kugirango byongere ububiko bwabyo.
(2) Kugenzura pH ya coating
Acide na alkalinity ya sisitemu yo gutwikira bigira uruhare runini mumitekerereze ya selile ya selile. Mu gishushanyo mbonera, agaciro ka pH k'igifuniko kagomba kugenzurwa kugirango hirindwe aside irike cyangwa alkaline ikabije kugirango igabanye kwangirika kwa ether selile. Mugihe kimwe, wongeyeho urugero rukwiye rwa pH uhindura cyangwa buffer birashobora gufasha guhagarika pH ya sisitemu.
(3) Kongera ikoreshwa ryokwirinda
Kugirango wirinde isuri ya mikorobe, hagomba kongerwaho urugero rukwiye rwo kubungabunga ibidukikije. Kurinda ibintu bishobora kubuza imikurire ya mikorobe, bityo bikarinda ibintu kama nka selile ya ether ya selile kubora no gukomeza guhagarara neza. Ibikoresho byabigenewe bigomba gutoranywa hakurikijwe uburyo bwo kubika no kubika ibidukikije, kandi imikorere yabyo igomba kugenzurwa buri gihe.
(4) Kugenzura ibidukikije
Ubushyuhe bwo kubika hamwe nubushuhe bwikibiriti bigira ingaruka zitaziguye kumitsi. Igipfundikizo kigomba kubikwa ahantu humye kandi hakonje, hirindwa ubushyuhe bwinshi nubushyuhe bwinshi kugirango bigabanye guhindagurika kwangirika no kwangirika kwa selile. Byongeye kandi, gupakira bifunze neza birashobora kugabanya neza kwimuka no guhumeka kwamazi no gutinda kugabanuka kwijimye.
4. Ibindi bintu bigira ingaruka kumyuka
Usibye selile ya selile, ibindi bice bigize sisitemu yo gutwikira bishobora no kugira ingaruka kumihindagurikire. Kurugero, ubwoko hamwe nubunini bwa pigment, igipimo cyihindagurika cyumuti, hamwe nubwuzuzanye bwibindi byibyimbye cyangwa bitatanye bishobora kugira ingaruka kumyifatire yimyenda. Kubwibyo, igishushanyo mbonera cya coating formulaire hamwe nubusabane hagati yibigize nabyo ni ingingo zingenzi zigomba kwitabwaho.
Kugabanuka kwijimye mugihe cyo kubika igifuniko bifitanye isano rya bugufi nibintu nko kwangirika kwa ethers ya selile, guhindagurika kwa solvent, no kwimuka kwamazi. Kugirango tunonosore ububiko bwububiko bwa coater, hagomba gutoranywa ubwoko bwa selulose ether butandukanye, pH ya coating igomba kugenzurwa, ingamba zo kurwanya ruswa zigomba gushimangirwa, hamwe nububiko bugomba kuba bwiza. Binyuze mu buryo bunoze bwo gushushanya no gucunga neza ububiko, ikibazo cyubwiza bugabanuka mugihe cyo kubika igifuniko gishobora kugabanuka neza, kandi imikorere yibicuruzwa no guhatanira isoko birashobora kunozwa.
Igihe cyo kohereza: Nzeri-27-2024