Nigute ushobora gukoresha hydroxyethyl selulose HEC mumarangi ya latex, ni iki twakagombye kwitondera?

Hydroxyethyl selulose (HEC) ni umuhondo wera cyangwa umuhondo wera, udafite impumuro nziza, fibrous idafite uburozi cyangwa ifu ikomeye. Ikozwe mu ipamba mbisi cyangwa ifu yatunganijwe neza muri 30% ya soda ya caustic. Nyuma yigice cyisaha, irasohoka ikanda. Kunyunyuza kugeza igipimo cyamazi ya alkaline kigeze kuri 1: 2.8, hanyuma ujanjagure. Itegurwa na etherification reaction kandi ni iyindi ya ionic soluble selulose ethers. Hydroxyethyl selile ni umubyimba wingenzi mumabara ya latex. Reka twibande ku buryo bwo gukoresha hydroxyethyl selulose HEC mu irangi rya latex no kwirinda.

1. Bifite inzoga za nyina kugirango ukoreshwe: banza ukoreshe hydroxyethyl selulose HEC kugirango utegure inzoga ya nyina yibanda cyane, hanyuma uyongere kubicuruzwa. Ibyiza byubu buryo nuko bifite ihinduka ryinshi kandi birashobora kwongerwaho kubicuruzwa byarangiye, ariko bigomba kubikwa neza. Intambwe zubu buryo zirasa nintambwe nyinshi muburyo bwa 2; itandukaniro ni uko nta mpamvu ikenewe yo gukangura cyane, kandi gusa bamwe mubakangurambaga bafite imbaraga zihagije zo gukomeza hydroxyethyl selulose ikwirakwizwa kimwe mubisubizo birashobora gukomeza nta guhagarika Stir kugeza bishonge burundu mubisubizo biboneye. Icyakora, tugomba kumenya ko fungiside igomba kongerwamo inzoga za nyina vuba bishoboka.

2. Ongeraho muburyo butaziguye: ubu buryo nuburyo bworoshye kandi bufata igihe gito. Ongeramo amazi meza mu ndobo nini ifite imashini ivanze cyane. Tangira kubyutsa ubudahwema kumuvuduko muke hanyuma ushungure buhoro hydroxyethyl selulose mubisubizo neza. Komeza kubyutsa kugeza ibice byose byashizwemo. Noneho ongeramo imiti igabanya ubukana hamwe ninyongera zitandukanye. Nka pigment, imfashanyo ikwirakwiza, amazi ya amoniya, nibindi. Kangura kugeza hydroxyethyl selulose yose HEC ishonga burundu (viscosity yumuti wiyongera bigaragara) hanyuma ukongeramo ibindi bice muburyo bwo kubyitwaramo.

Kubera ko hydroxyethyl selulose ivura hejuru HEC ari ifu cyangwa fibrous ikomeye, mugihe utegura inzoga ya hydroxyethyl selulose, witondere ingingo zikurikira:

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(2) Mbere na nyuma yo kongeramo hydroxyethyl selulose HEC, igomba guhora ikomeza kugeza igihe igisubizo kiboneye kandi gisobanutse neza.
(3) Ibishoboka byose, ongeramo antifungal agent mbere.
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(5) Ntukongere ibintu bya alkaline bivanze mbere yuko ifu ya hydroxyethyl selulose yinjizwa namazi. Kuzamura pH nyuma yo gushiramo bizafasha gushonga.
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Ibintu byingenzi bigira ingaruka kumyambarire ya latex:
(1) Kubora kubyimbye na mikorobe.
(2) Muburyo bwo gukora amarangi, niba intambwe ikurikiranye yo kongeramo umubyimba ikwiye.
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(6) Ubushyuhe buri hejuru cyane mugihe cyo gutatana kubera gukurura cyane.
(7) Uko umwuka mwinshi uguma mu irangi, niko ubwiza bwiyongera.

Ubukonje bwa hydroxyethyl selulose HEC ihinduka gato murwego rwa pH ya 2-12, ariko ubukonje bugabanuka kurenza iyi ntera. Ifite imiterere yo kubyimba, guhagarika, guhambira, kwigana, gutatanya, kubungabunga ubushuhe no kurinda colloid. Ibisubizo muburyo butandukanye bwo kwiyegeranya birashobora gutegurwa. Ntabwo bihindagurika mubushyuhe busanzwe nigitutu, irinde ubushuhe, ubushyuhe, nubushyuhe bwo hejuru, kandi bifite umunyu mwinshi udasanzwe wokunywa kuri dielectrics, kandi igisubizo cyamazi cyemerewe kuba kirimo imyunyu myinshi kandi ikomeza guhagarara neza.