Hydroxyethyl cellulose

Hydroxyethyl cellulose (HEC) ndi yoyera kapena yopepuka yachikasu, yopanda fungo, yopanda poizoni kapena yolimba yaufa yokonzedwa ndi etherification ya cellulose yamchere ndi ethylene oxide (kapena chlorohydrin). Nonionic soluble cellulose ethers. Chifukwa HEC ili ndi katundu wabwino wa thickening, kuyimitsa, kumwazikana, emulsifying, kugwirizana, kupanga mafilimu, kuteteza chinyezi ndi kupereka colloids zotetezera, zakhala zikugwiritsidwa ntchito kwambiri pofufuza mafuta, zokutira, zomangamanga, mankhwala ndi chakudya, nsalu, mapepala ndi ma polima. Polymerization ndi magawo ena. Ma cellulose a Hydroxyethyl ndi osakhazikika pakatenthedwe koyenera komanso kupanikizika, amapewa chinyezi, kutentha, komanso kutentha kwambiri, ndipo amakhala ndi kusungunuka kwabwino kwa mchere pamagetsi amagetsi. Njira yake yamadzimadzi imaloledwa kukhala ndi mchere wambiri ndipo imakhala yokhazikika.

Malangizo
Lowani mwachindunji kupanga

1. Onjezerani madzi oyera ku chidebe chachikulu chokhala ndi makina opangira ubweya wambiri.

2. Yambani kuyambitsa mosalekeza pa liwiro lotsika ndikusefa pang'onopang'ono cellulose ya hydroxyethyl mu yankho mofanana.

3. Pitirizani kuyambitsa mpaka tinthu tating'onoting'ono tanyowa.

4. Kenaka yikani antifungal agents, zowonjezera zamchere monga ma pigment, dispersing aids, ammonia madzi.

5. Onetsetsani mpaka cellulose yonse ya hydroxyethyl itasungunuka kwathunthu (kukhuthala kwa yankho kumawonjezeka kwambiri) musanawonjezere zigawo zina mu ndondomeko, ndikupera mpaka mankhwala omalizidwa.

Okonzeka ndi chakumwa cha mayi

Njirayi ndiyoyamba kukonzekera chakumwa cha amayi chokhala ndi ndende yapamwamba, ndikuwonjezera pa utoto wa latex. Ubwino wa njirayi ndikuti umakhala ndi kusinthasintha kwakukulu ndipo ukhoza kuwonjezeredwa mwachindunji ku utoto womalizidwa, koma uyenera kusungidwa bwino. Masitepewo ndi ofanana ndi masitepe 1-4 mu njira 1, kupatula kuti kusonkhezera kwakukulu sikofunikira kuti kusungunuke mu njira yothetsera viscous.

Samalani
Popeza kuti hydroxyethyl cellulose yopangidwa pamwamba ndi ufa kapena cellulose olimba, n'zosavuta kugwira ndi kusungunuka m'madzi malinga ngati zinthu zotsatirazi zikudziwika.

1. Isanayambe komanso itatha kuwonjezera hydroxyethyl cellulose, iyenera kugwedezeka mosalekeza mpaka yankho likuwonekera bwino komanso lomveka bwino.

2. Iyenera kusefedwa mu mbiya yosakaniza pang'onopang'ono. Osawonjezera mwachindunji cellulose ya hydroxyethyl yomwe idapangidwa kukhala zotupa kapena mipira mu mbiya yosanganikirana yochulukirapo kapena mwachindunji.

3. Kutentha kwa madzi ndi pH ya madzi kumakhala ndi chiyanjano chachikulu ndi kusungunuka kwa cellulose ya hydroxyethyl, choncho chisamaliro chapadera chiyenera kuperekedwa kwa izo.

4. Musawonjezere zinthu za alkaline kusakaniza ufa wa hydroxyethyl cellulose usanatenthedwe ndi madzi. Kukweza mtengo wa PH mutatha kutentha ndikothandiza pakusungunuka.

5. Momwe mungathere, onjezerani antifungal wothandizira mwamsanga.

6. Pamene ntchito mkulu mamasukidwe akayendedwe mapadi hydroxyethyl mapadi, ndende ya mowa mayi sayenera kuposa 2.5-3%, apo ayi mowa mayi n`kovuta ntchito. Ma cellulose a hydroxyethyl pambuyo pothiridwa nthawi zambiri sakhala osavuta kupanga minyewa kapena mabwalo, ndipo sapanga ma colloid ozungulira osasungunuka atawonjezera madzi.