Hydroxyethyl selulose ni urwego ruciriritse rwinshi rwa selulose ether, ikoreshwa nkibyimbye na stabilisateur kumazi ashingiye kumazi, cyane cyane iyo ububiko bwibitse buri hejuru kandi ububobere bwo kubukoresha bukaba buri hasi.Ether ya selile iroroshye gukwirakwiza mumazi akonje afite agaciro ka pH ≤ 7, ariko biroroshye guhuriza hamwe mumazi ya alkaline ifite pH ≥ 7.5, bityo rero tugomba kwitondera ikwirakwizwa rya ether ya selile.
Ibiranga no gukoresha hydroxyethyl selulose:
1. Anti-enzyme itari iyoni yamazi, ishobora gukoreshwa muburyo butandukanye bwagaciro ka pH (PH = 2-12).
2. Biroroshye gutatanya, birashobora kongerwaho muburyo bwa poro yumye cyangwa muburyo bwa slurry mugihe usya pigment nuwuzuza.
3. Ubwubatsi buhebuje.Ifite ibyiza byo kuzigama umurimo, ntabwo byoroshye gutonyanga no kumanika, hamwe no guhangana neza.
4. Guhuza neza na surfactants zitandukanye hamwe nuburinzi bukoreshwa mumarangi ya latex.
5. Ububiko bwibitse burahagaze neza, bushobora kubuza ubwiza bwirangi rya latex kugabanuka bitewe no kubora kwimisemburo muri hydroxyethyl selile.
Ibyiza bya Hydroxyethyl Cellulose
Hydroxyethyl selulose ether ni polymer idafite amazi.Ni ifu yera cyangwa yoroheje yumuhondo utemba byoroshye.Mubisanzwe bidashonga mumashanyarazi menshi
1. HEC irashobora gushonga mumazi ashyushye cyangwa mumazi akonje, kandi ntigwa kugwa mubushyuhe bwinshi cyangwa kubira, ibyo bigatuma igira ibintu byinshi biranga ibishishwa hamwe nubusembwa, hamwe nubushyuhe butari ubushyuhe.
2. Ntabwo ari ionic kandi irashobora kubana nizindi polymers zishonga mumazi, surfactants, numunyu.Nibyiza cyane bya colloidal kubyibisubizo birimo electrolytite yibanda cyane.
3. Ubushobozi bwo gufata amazi bwikubye kabiri ubwa methyl selulose, kandi bufite gahunda nziza yo gutembera.
4. Ugereranije na methyl selulose izwi na hydroxypropyl methyl selulose, ubushobozi bwo gukwirakwiza HEC nububi cyane, ariko ubushobozi bwo kurinda colloid nubushobozi bukomeye (bufite amabara).
Kubyimba
Gira ingaruka kumikorere, nka: coatability, kurwanya flash, kurwanya igihombo;imiterere yihariye y'urusobekerane rwa selile irashobora guhagarika ifu muri sisitemu yo gutwikira, kugabanya umuvuduko wacyo, no gutuma sisitemu ibona ingaruka nziza zo kubika.
Kurwanya amazi meza
Iyo firime irangi imaze kwuma rwose, ifite amazi meza cyane.Ibi biragaragaza cyane cyane agaciro k’amazi arwanya sisitemu yo hejuru ya PVC.Kuva mumahanga kugeza mubushinwa, muriyi sisitemu yo hejuru-PVC, ingano ya selile yongeyeho ni 4-6 ‰.
gufata neza amazi
Hydroxyethyl selulose irashobora kongera igihe cyo kugaragara no kugenzura igihe cyo kumisha kugirango ibone firime nziza;muri byo, kugumana amazi ya methyl selulose na hypromellose bigabanuka cyane hejuru ya 40 ° C, kandi ubushakashatsi bwakozwe n’amahanga bwemeza ko bushobora kugabanukaho 50%, ibibazo by’ibihe mu gihe cyizuba n'ubushyuhe bukabije byiyongera cyane.
Guhagarara neza kugirango ugabanye flokculation yamabara
Kurandura ubutayu, synereze na flocculation;Hagati aho, hydroxyethyl selulose ether ni ubwoko bwibicuruzwa bitari ionic.Ntabwo yitwara hamwe ninyongera zitandukanye muri sisitemu.
Guhuza neza na sisitemu y'amabara menshi
Ubwuzuzanye buhebuje bwamabara, pigment nuwuzuza;hydroxyethyl selulose ether ifite iterambere ryiza ryamabara, ariko nyuma yo guhinduka, nka methyl na Ethyl, hazabaho ingaruka zihishe zo guhuza pigment.
Guhuza neza nibikoresho bitandukanye
Irashobora gukoreshwa muburyo butandukanye bwo gutwikira.
Igikorwa kinini cya mikorobe
Birakwiye kuri sisitemu ya silike
Igihe cyo kohereza: Gashyantare-02-2023