Njira yogwiritsira ntchito hydroxyethyl cellulose mu utoto wa latex

Kugwiritsiridwa ntchito kwa hydroxyethyl cellulose mu utoto wa latex ndi motere: 1. Onjezerani mwachindunji pamene mukupera pigment: njirayi ndi yosavuta, ndipo nthawi yogwiritsidwa ntchito ndi yochepa. Njira zotsatiridwa ndi izi: (1) onjezerani madzi oyeretsedwa bwino (nthawi zambiri, ethylene glycol, chonyowetsa ndi chopangira mafilimu amawonjezeredwa panthawiyi) (2) yambani kugwedeza pa liwiro lotsika mosalekeza ndikuwonjezera pang'onopang'ono hydroxyethyl cellulose (3) pitirizani kuyambitsa mpaka tinthu tating'onoting'ono tonyowa (4) onjezerani mildew inhibitor; PH chowongolera, etc. (5) akuyambitsa mpaka onse hydroxyethyl mapadi kusungunuka kwathunthu (yankho mamasukidwe akayendedwe kuwonjezeka) pamaso kuwonjezera zigawo zina za chilinganizo, akupera mpaka utoto.
2.Okonzeka ndi mowa mayi kuyembekezera ntchito: njira imeneyi choyamba okonzeka ndi apamwamba ndende ya mowa mayi, ndiyeno anawonjezera utoto lalabala utoto, njira ili ndi ubwino kusinthasintha kwambiri, akhoza mwachindunji anawonjezera mankhwala utoto, koma ayenera kukhala. kusungidwa bwino. Masitepe ndi njirazo ndi zofanana ndi masitepe (1) - (4) mu njira 1, kupatulapo kuti kumeta ubweya wambiri sikufunika, ndipo chowotcha chokha chokhala ndi mphamvu zokwanira kusunga ulusi wa hydroxyethyl mofanana wobalalika mu yankho umafunika. Pitirizani kuyambitsa mpaka itasungunuka kwathunthu mu viscous solution. Dziwani kuti: mildew inhibitor iyenera kuwonjezeredwa ku mowa wa amayi mwamsanga. 3. Congee ndi phenology: monga organic solvents kwa hydroxyethyl mapadi ndi zosungunulira zoipa, kotero organic solvents angagwiritsidwe ntchito pokonzekera congee. Zomwe zimagwiritsidwa ntchito kawirikawiri monga ethylene glycol, propylene glycol, ndi mafilimu opanga mafilimu (monga hexanediol kapena diethylene glycol butyl acetate) , madzi oundana amakhalanso osungunulira bwino, choncho nthawi zambiri amagwiritsidwa ntchito ndi zakumwa zamadzimadzi pokonzekera phala. Phala-ngati hydroxyethyl cellulose akhoza kuwonjezeredwa mwachindunji ku utoto. Ma cellulose a Hydroxyethyl akhutitsidwa kwathunthu mu phala. Lacquer ikawonjezeredwa, imasungunuka nthawi yomweyo ndipo imakula. Pambuyo powonjezera, ziyenera kugwedezeka mosalekeza mpaka hydroxyethyl cellulose itasungunuka kwathunthu ndi yunifolomu. Nthawi zambiri phala amakhala ndi magawo asanu ndi limodzi a organic zosungunulira kapena madzi ayezi ndi gawo la hydroxyethyl cellulose osakaniza, pafupifupi mphindi 5-30 kenako, hydroxyethyl mapadi adzakhala hydrolyzed ndi kutupa. Chilimwe pamene ambiri madzi chinyezi kwambiri, si oyenera okonzeka ndi phala.
3.Zinayi. Zindikirani pokonzekera mayi mowa wa hydroxyethyl mapadi popeza hydroxyethyl mapadi ndi mankhwala tinthu tinthu, n'zosavuta ntchito ndi kupasuka m'madzi ndi kulabadira zotsatirazi. 1 isanayambe komanso itatha kuwonjezera hydroxyethyl cellulose, osakaniza ayenera kugwedezeka mosalekeza mpaka yankho likuwonekera bwino komanso lomveka bwino. 2 ayenera anasefa mu kusakaniza ng'oma, musakhale ndi kuchuluka kwa apezeka kapena mipira ya hydroxyethyl mapadi wawonjezedwa mwachindunji mu ng'oma kusakaniza. 3 kusungunuka kwa hydroxyethyl cellulose kumakhudzana ndi kutentha kwa madzi ndi pH mtengo m'madzi, zomwe ziyenera kuperekedwa chidwi chapadera. 4 musawonjezere zinthu zina zofunika kusakaniza ufa wa hydroxyethyl cellulose usanakhutitsidwe ndi madzi. Kuchulukitsa pH pambuyo pa kuviika kumathandiza kusungunuka. 5 momwe ndingathere, koyambirira kuwonjezera anti-mildew wothandizira. 6 pamene ntchito mkulu mamasukidwe akayendedwe hydroxyethyl mapadi, mayi mowa ndende sangakhale apamwamba kuposa 2.5-3% (gravimeter) , apo ayi mowa mayi n`kovuta ntchito. Zomwe zimakhudza kukhuthala kwa utoto wa latex:
1 Pamene zili ndi mpweya thovu mu utoto, ndi apamwamba mamasukidwe akayendedwe. 2 kuchuluka kwa activator yapamtunda ndi madzi omwe amagwiritsidwa ntchito muzojambula za utoto ndizoyenera. 3 mu kaphatikizidwe ka latex, kuchuluka kwa zotsalira zotsalira ndi ma oxides ena. 4 kuchuluka kwa zokhuthala zina zachilengedwe mumtundu wa utoto komanso kuchuluka kwa cellulose ya hydroxyethyl. 5 pakupanga utoto, kuwonjezera kutsatizana kwa masitepe ndikoyenera. 6 chifukwa kwambiri mukubwadamuka kuti pamene omwazika chinyezi kutenthedwa. 7 kuwonongeka kwa tizilombo toyambitsa matenda a Thickener.