Ni izihe ngamba za eteri ya selulose zikoreshwa mu nzego zitandukanye?

Eteri ya selulosini polymeri ifite molekile nyinshi idafite ionic, ishonga mu mazi kandi ishonga mu buryo bwa solvent. Igira ingaruka zitandukanye mu nganda zitandukanye. Urugero, mu bikoresho by'ubwubatsi bya shimi, igira ingaruka zikurikira:

① Ikintu gifata amazi, ②Ituma amazi arushaho kuzura, ③Itungo ripima uburebure, ④Itungo rikora firime,

⑤Igikoresho cyo gufunga

Mu nganda za polyvinyl chloride, ni emulsifier na dispersant; mu nganda zikora imiti, ni igikoresho gifunga kandi gisohora buhoro buhoro kandi kikagenzurwa, nibindi. Kubera ko cellulose ifite ingaruka zitandukanye, ikoreshwa ryayo ni naryo rinini cyane. Ibikurikira, ndibanda ku ikoreshwa n'imikorere ya cellulose ether mu bikoresho bitandukanye by'ubwubatsi.

Iirangi rya latex

Mu nganda zikora amarangi ya latex, kugira ngo uhitemo hydroxyethyl cellulose, imiterere rusange y'ubushyuhe bungana ni 30000-50000cps, bihuye n'imiterere ya HBR250, kandi ingano y'ifatizo muri rusange ni hafi 1.5‰-2‰. Akamaro k'ingenzi ka hydroxyethyl mu irangi rya latex ni ukubyimba, gukumira ko ibara ritambuka, gufasha gukwirakwira kw'ibara, kugumana ubushyuhe, no kongera ubushyuhe bw'ibice bigize irangi, ibi bikaba ingirakamaro mu mikorere y'ubwubatsi: Hydroxyethyl cellulose yoroshye kuyikoresha. Ishobora gushonga mu mazi akonje cyangwa mu mazi ashyushye, kandi ntigira ingaruka ku gaciro ka pH. Ishobora gukoreshwa neza hagati ya PI value 2 na 12. Uburyo bwo kuyikoresha ni ubu bukurikira:

1. Ongeraho mu buryo butaziguye mu musaruro

Muri ubu buryo, hagomba gutoranywa ubwoko bwa hydroxyethyl cellulose dateje, hanyuma hagakoreshwa hydroxyethyl cellulose ifite igihe cyo gushonga iminota irenga 30. Intambwe ni izi zikurikira: ① Shyira amazi meza runaka mu kintu kirimo icyuma gishyushya cyane ② Tangira kuvanga ubudasiba ku muvuduko muto, kandi icyarimwe wongere buhoro buhoro itsinda rya hydroxyethyl mu gisubizo kimwe ③Komeza kuvanga kugeza ibikoresho byose byuzuye ④Ongeramo ibindi bikoresho n'ibindi bikoresho by'ibanze, nibindi. ⑤Vanga kugeza amatsinda yose ya hydroxyethyl ashongeshejwe burundu, hanyuma ongeramo ibindi bice muri formula hanyuma usya kugeza igihe umusaruro urangiye.

2. Ifite inzoga y'inka kugira ngo ikoreshwe nyuma

Ubu buryo bushobora guhitamo ubwoko bw'ingufu buhita bukoreshwa, kandi bufite selulose irwanya ububobere. Akamaro k'ubu buryo ni uko bufite ubworoherane bwinshi kandi bushobora kongerwamo irangi rya latex. Uburyo bwo gutegura ni bumwe n'intambwe ①-④.

3. Bikore mu gikoma kugira ngo uzabikoreshe nyuma

Kubera ko imiti ihumanya ikirere ari imiti idafite ubushobozi bwo gushonga neza (idashobora gushonga) kuri hydroxyethyl, iyi miti irashobora gukoreshwa mu gukora igikoma. Imiti ihumanya ikirere ikoreshwa cyane ni amazi y’umwimerere ari mu miti irangi rya latex, nka ethylene glycol, propylene glycol, n’ibintu bikora filime (nka diethylene glycol butyl acetate). Igikoma cya hydroxyethyl cellulose gishobora kongerwamo irangi mu buryo butaziguye. Komeza uvange kugeza gishonge neza.

In puti

Muri iki gihe, mu mijyi myinshi yo mu gihugu cyanjye, putty irinda amazi kandi irinda ibidukikije yakunze guhabwa agaciro n'abantu. Ikorwa na acetal ya alcool ya vinyl na formaldehyde. Kubwibyo, ibi bikoresho bikurwaho buhoro buhoro n'abantu, kandi ibikoresho bya cellulose ether bikoreshwa mu gusimbuza ibi bikoresho. Ni ukuvuga ko, mu guteza imbere ibikoresho by'ubwubatsi birengera ibidukikije, cellulose ni yo yonyine ikoreshwa.

Muri putty idashobora amazi, igabanyijemo ubwoko bubiri: putty y'ifu yumye na putty paste. Muri ubwo bwoko bubiri bwa putty, methyl cellulose na hydroxypropyl methyl bigomba gutoranywa. Ibipimo by'ubushyuhe muri rusange biri hagati ya 40000-75000cps. Imirimo y'ingenzi ya cellulose ni ukubungabunga amazi, kuyahuza no kuyasiga.

Kubera ko formula za putty z’inganda zitandukanye zitandukanye, zimwe ni calcium y’ikijuju, calcium yoroheje, sima yera, nibindi, izindi ni ifu ya gypsum, calcium y’ikijuju, calcium yoroheje, nibindi, bityo imiterere, ubukana n’ingano ya selulose yatoranijwe n’izo formula zombi nabyo biratandukanye. Ingano yongeweho ni hafi 2‰-3‰.