HEC ya Detergent

HEC Hydroxyethyl cellulose ndi ulusi woyera mpaka wotumbululuka wachikasu kapena olimba. Zopanda poizoni, zopanda kukoma. Ndi nonionic cellulose ether, sungunuka m'madzi ozizira ndi otentha chifukwa cha hydrophilic hydroxyethyl mu molekyulu. Njira yake yamadzimadzi imakhala ndi pH ya 6.5 ~ 8.5 ndipo imakhala yokhazikika pakutentha. HEC ili ndi kusungunuka kosiyana malinga ndi digiri ya m'malo (DS). Insoluble mu zosungunulira zambiri organic. Lili ndi katundu wa thickening, kuyimitsidwa, adhesion, emulsification, kubalalitsidwa ndi kusunga chinyezi, etc., ndipo akhoza kukonzekera njira ndi ranges kukhuthala osiyanasiyana. Ili ndi kusungunuka kwabwino kwa mchere ku dielectric, ndipo njira yake yamadzimadzi imaloledwa kukhala ndi mchere wambiri ndipo imakhala yosasinthika.

Hydroxyethyl cellulose HECkupanga zopangira

Zida zazikulu: cellulose yamzinda (chikulu cha thonje kapena zamkati), alkali yamadzimadzi, ethylene oxide, ethylene diron (40%).

Alkali CHIKWANGWANI dongosolo ndi chilengedwe polima, aliyense CHIKWANGWANI mphete lili magulu atatu hydroxyl, kwambiri yogwira hydroxyl anachita kupanga hydroxyethyl mapadi. Zilowerereni thonje laiwisi kapena phala la chakudya choyengedwa bwino mu 30% ya alkali yamadzimadzi kwa theka la ola ndikusindikiza. Pondani mpaka 1: 2.8 milandu yamadzi amchere, kenaka muphwanye. The wosweka alkali mapadi amaikidwa mu anachita ketulo, losindikizidwa, vacuumized, wodzazidwa nayitrogeni, ndi mobwerezabwereza vacuumized ndi kudzazidwa nayitrogeni m'malo mpweya mu nkhaniyo. The chisanadze utakhazikika ethylene okusayidi madzi mbamuikha mu riyakitala jekete ndi madzi ozizira, ndi zimene ankalamulidwa pa za 25C kwa 2h kupeza hydroxyethyl CHIKWANGWANI chingwe chosapanga mankhwala. Zakumwa zoledzeretsa zokhala ndi mowa kutsuka, onjezerani acetic acid neutralization ku VLL 46, jean onjezerani ukalamba wa glyoxal crosslinking. Ndiye kusamba ndi madzi, centrifugal kuchepa madzi m'thupi, kuyanika, akupera, hydroxyethyl mapadi.

1.1 madzi alkali

Koyera mankhwala ndi colorless mandala madzi. Kachulukidwe wachibale 2. 130, kusungunuka mfundo 318.4C, kuwira mfundo 1390C. Soda ya Caustic pamsika ili ndi gawo lozungulira. Ndipo madzi mitundu iwiri: koyera kolimba koloko koloko woyera, flake, chipika, granular ndi ndodo mawonekedwe, cytoplasm: koyera madzi caustic koloko amatchedwa madzi alkali, colorless mandala madzi. Zogulitsa zamafakitale zimakhala ndi zonyansa, makamaka sodium kolorayidi ndi sodium carbonate, ndipo nthawi zina pang'ono oxide chitsulo.

1.2 ethylene oxide

Ethylene oxide ndi organic pawiri, mankhwala chilinganizo C2H40, ndi poizoni carcinogen. Nzimbe za epoxy ndi zoyaka komanso kuphulika, osati zosavuta kunyamula mtunda wautali, kotero pali dera lolimba. Amagwiritsidwa ntchito kwambiri m'mafakitale ochapira, opangira mankhwala, osindikizira ndi opaka utoto. 3 oxyethane (E0) ndi mphete yosavuta kwambiri ya ether, ya heterocyclic mankhwala, ndi chinthu chofunikira kwambiri cha petrochemical. Ethylene oxide ndi madzi owoneka bwino opanda mtundu omwe amatentha pang'ono komanso mpweya wopanda utoto wokhala ndi fungo loyipa la miyendo kutentha. Kuthamanga kwa mpweya wa gasi ndikokwera kwambiri ndipo kumatha kufika 141kPa pa 30C. Kuthamanga kwa nthunzi kumeneku kumatsimikizira kulowa mwamphamvu kwa epoxy z.alkane pamene mukuwotcha. Posungunuka (C): -112.2. Kachulukidwe wachibale (madzi -1) : 0.8711

1.3 glyoxal

Yellow nthiti kapena kufota mosakhazikika, kusanduka koyera pakuziziritsa.

Hydroxyethyl celluloseKupanga kwa HECndondomeko

Ikanithonje kapena zamkati woyengedwa mu 30% lye. Chotsani ndikusindikiza. Kenako imaphwanyidwa ndikuchitapo kanthu ndi ethylene oxide yokhazikika kale kuti ipange hydroxyethyl cellulose. Ndiye kusamba ndi mowa ndi kuwonjezera acetic asidi kusamba ndi neutralize. Kenaka yikani glyoxal crosslinking kukalamba, kusamba mwamsanga ndi madzi. Pomaliza, pambuyo centrifugation madzi m'thupi, kuyanika ndi akupera, yomalizidwaHECmankhwala anapezedwa.

Njira yopangira phulusa lalifupiHEChydroxyethyl mapadi ndi mosalekeza kuchapa ndondomeko ali m'munda luso zipangizo. Vuto laukadaulo lomwe likuyenera kuthetsedwa ndikupereka njira yotsuka mosalekeza yokhala ndi magwiridwe antchito apamwamba, kutayika pang'ono kwa zosungunulira zotsukira ndi zinthu komanso mtengo wotsika kupanga phulusa lochepa.HEChydroxyethyl cellulose. Njira yotsuka mosalekeza yotulutsa phulusa lochepaHEChydroxyethyl mapadi yodziwika mu masitepe otsatirawa: A, yosakongola hydroxyethyl mapadi ndi crosslinking wothandizira wosanganiza, crosslinking mankhwala kupeza slurry A; B. Onjezani kutsuka zosungunulira ku slurry A wopezedwa mu sitepe A kupeza slurry B; C. Onjezani slurry C wopezedwa mu sitepe B mu rotary pressure centrifuge ndi kupeza otsika phulusa hydroxyethyl cellulose pambuyo kuchapa mosalekeza. Njirayo imatha kusintha kwambiri magwiridwe antchito, kusintha kwambiri kutayika kwa zosungunulira zotsukira ndi zakuthupi, komanso kuchepetsa phulusa lazinthu zomwe zili zoyenera kutchuka komanso kugwiritsa ntchito.