Gukoresha selulose ether mubice bitandukanye

Cellulose ether ni polimeri idafite ionic igice cya sintetike, gushonga amazi no gushonga kabiri, munganda zitandukanye zatewe ninshingano ziratandukanye, nko mubikoresho byubaka imiti, bifite ingaruka zikurikira:

Agent igumana amazi, agent igabanya umubyimba, ③ kuringaniza, form gukora firime, ⑤ binder

Mu nganda za PVC

ni emulifier, ikwirakwiza;

Mu nganda zikora imiti

ni ubwoko bwa binder kandi buhoro buhoro kurekura ibikoresho bya skeleton, kubera ko selile ya ether ifite ingaruka zitandukanye zingirakamaro, bityo rero niwo murima ukoreshwa cyane. Hasi ndibanda kumikoreshereze ya selulose ether mubikoresho bitandukanye byubaka ninshingano.

Irangi rya latex

Mumurongo wamabara ya latex, kugirango uhitemo hydroxyethyl selulose, ibisobanuro rusange byubwiza bungana ni 3000-50000cps, bihuye nibisobanuro bya HBR250, dosiye ikoreshwa ni 1.5 ‰ -2 ‰. Uruhare runini rwa hydroxyethyl selulose mu irangi rya latex ni ukubyimba, gukumira ihindagurika ry’ibara, kugira uruhare mu gukwirakwiza pigment, latex, ituze, kandi birashobora kunoza ubwiza bwibigize, bigira uruhare mu mikorere iringaniza yubwubatsi: Hydroxyethyl selulose iroroshye gukoresha , amazi akonje kandi ashyushye arashobora gushonga, kandi ntabwo bigira ingaruka kubiciro bya PH. Irashobora gukoreshwa neza hagati ya PI agaciro 2 na 12. Uburyo bwo gukoresha nuburyo bukurikira:

I. Ongeraho muburyo butaziguye

Kuri ubu buryo, hydroxyethyl selulose yatinze hamwe nigihe cyo gusesa iminota irenga 30 igomba guhitamo. Uburyo bukurikira: komeza kubyutsa kugeza ibikoresho byose bitose (4) kugirango wifatanye nibindi byongeweho ninyongeramusaruro ya alkaline (5) kubyutsa kugeza hydroxyethyl yose yashonze burundu, ongeramo ibindi bigize formulaire, usya kubicuruzwa byarangiye.

2, ifite inzoga za nyina

Ubu buryo burashobora guhitamo byihuse - gushonga selile, kandi bifite mildew - ingaruka zerekana. Ibyiza byubu buryo ni ukugira ihinduka rinini, rishobora guhuza irangi rya emulsioni mu buryo butaziguye, gukora uburyo ni kimwe na ① - ④ intambwe ni imwe.

3, hamwe na poroji yo gukoresha

Kubera ko ibishishwa kama ari ibishishwa bikennye (bidashobora gushonga) kuri hydroxyethyl, birashobora gukoreshwa mugutegura igikoma. Amashanyarazi akoreshwa cyane ni amavuta kama mumyanda ya latx, nka Ethylene glycol, propylene glycol hamwe na firime ikora (nka diethylene glycol butyl acetate), hydroxyethyl selulose ya porojora irashobora kwongerwaho irangi, nyuma yo kongeramo, komeza kubyutsa kugeza bishonge burundu.

Mu gusiba urukuta

Kugeza ubu, Ubushinwa buri mu turere twinshi two kurwanya amazi mu mujyi, kurwanya abantu benshi mu rwego rwo kurengera ibidukikije byafatanywe uburemere n’abantu, mu myaka mike ishize, kubera ko ibishishwa bikozwe mu kashe byerekana imyuka yangiza ubuzima bwa muntu, inyubako kole ikozwe muri alcool ya polyvinyl na reaction ya formaldehyde. Ibi bikoresho rero bigenda bikurwaho buhoro buhoro nabantu, kandi gusimbuza ibi bikoresho ni selulose ether yuruhererekane rwibicuruzwa, bivuze ko guteza imbere ibikoresho byubaka ibidukikije, selile ni ubwoko bwonyine bwibikoresho muri iki gihe.

Mu kurwanya amazi putty igabanyijemo ifu yumye na putty paste ubwoko bubiri, ubu bwoko bubiri bwa putty muri rusange hitamo methyl selulose na hydroxypropyl methyl ubwoko bubiri, ibisobanuro bya viscosity mubisanzwe muri 40.000-75000cps hagati yibikwiye, muruhare runini rwa selile. muri putty ni ukubika amazi, guhuza, gusiga hamwe nizindi ngaruka.

Kuberako amata ya putty ya buriwukora atameze kimwe, amwe ni calcium yumukara, calcium yumucyo, sima yera, bimwe ni ifu ya gypsumu, calcium yumukara, calcium yumucyo, nibindi, bityo rero ibisobanuro byijimye hamwe nubucengezi bwa selile ya formula zombi. ntabwo arimwe, umubare rusange wongeyeho ni 2 ‰ -3 ‰ cyangwa.