Hydroxyethyl cellulose mu utoto wa emulsion

Njira yogwiritsira ntchito hydroxyethyl cellulose mu utoto wa latex

1. Hydroxyethyl cellulosendi phala ngati phenology: chifukwa hydroxyethyl cellulose siisungunuka mosavuta mu organic solvents, organic solvents zina zingagwiritsidwe ntchito kupangira phala. Madzi a ayezi nawonso ndi solvent yoyipa, kotero nthawi zambiri amagwiritsidwa ntchito mu phala ndi organic liquids. Hydroxyethyl cellulose ya mtundu wa congee ikhoza kuwonjezeredwa mwachindunji mu utoto wa emulsii. Hydroxyethyl cellulose yadzazidwa mu phala. Ikawonjezeredwa mu utoto, imasungunuka mwachangu ndikukhuthala. Pitirizani kusakaniza mpaka hydroxyethyl cellulose itabalalika kwathunthu ndikusungunuka. Porridge wamba amapangidwa posakaniza magawo asanu ndi limodzi a organic solvent kapena madzi a ayezi ndi gawo limodzi la hydroxyethyl cellulose. Pakatha mphindi pafupifupi 5-30, hydroxyethyl cellulose imasungunuka ndikukwera mowonekera. (Akuti chinyezi cha madzi m'chilimwe chimakhala chokwera kwambiri kuti chigwiritsidwe ntchito pa phala.)

2. Onjezani hydroxyethyl cellulose mwachindunji ku pigment yopukusira: njira iyi ndi yosavuta ndipo nthawi yake ndi yochepa. Njira zatsatanetsatane ndi izi:

(1) Onjezani madzi oyera oyenera mu VAT yapamwamba kwambiri ndipo muchepetse choyambitsa (nthawi zambiri, zowonjezera zopangira filimu ndi zinthu zonyowetsa zimawonjezedwa panthawiyi)

(2) Yambani kusakaniza ndi liwiro lotsika popanda kuyimitsa ndipo pang'onopang'ono onjezerani hydroxyethyl cellulose mofanana

(3) Pitirizani kusakaniza mpaka tinthu tonse titamwazikana mofanana ndikunyowa

(4) Onjezani choletsa mildew ndikusintha PH

(5) Sakanizani mpaka hydroxyethyl cellulose yonse itasungunuka kwathunthu (kukhuthala kwa yankho kumawonjezeka kwambiri), kenako onjezerani zinthu zina mu fomula, ndikupukuta mpaka itakhala utoto.

3 hydroxyethyl cellulose yokhala ndi madzi oyembekezera: njira iyi choyamba imakhala ndi madzi ochulukirapo amadzimadzi amadzimadzi, kenako ndikuwonjezera utoto wa latex, ubwino wa njira iyi ndi wosinthasintha, ukhoza kuwonjezera mwachindunji zinthu zomalizidwa ndi utoto, koma kusungira koyenera. Masitepe ndi njira zikufanana ndi masitepe (1) - (4) mu Njira 2, kupatula kuti chodulira chodula kwambiri sichifunika ndipo ma aggregator ena okha omwe ali ndi mphamvu zokwanira kuti ulusi wa hydroxyethyl utuluke mofanana mu yankho ndi omwe amagwiritsidwa ntchito. Pitirizani kusakaniza mpaka utasungunuka kwathunthu kukhala yankho lokhuthala. Dziwani kuti: choletsa chimfine chiyenera kuwonjezeredwa mwachangu momwe mungathere mu utoto wa mowa wamadzimadzi.

Zinthu 4 zofunika kuziganizira pokonza mowa wa hydroxyethyl cellulose

Popeza hydroxyethyl cellulose ndi ufa wothira mankhwala, ndi wosavuta kuugwira ndikusungunuka m'madzi motsatira njira zotsatirazi zodzitetezera.

(1) Musanawonjezere hydroxyethyl cellulose komanso mutatha kusakaniza, muyenera kusakaniza mpaka yankholo litawonekera bwino komanso loyera.

(2) Ndikofunikira kusefa hydroxyethyl cellulose mu thanki yosakaniza pang'onopang'ono. Musayiikemo yambiri kapena mwachindunji mu thanki yosakaniza.

(3) Kusungunuka kwa hydroxyethyl cellulose mwachionekere kumagwirizana ndi kutentha kwa madzi ndi pH ya madzi, kotero chisamaliro chapadera chiyenera kuperekedwa kwa izo.

(4) Musawonjezere zinthu zina zofunika mu chisakanizocho musananyowetse ufa wa hydroxyethyl cellulose ndi madzi. Kukweza pH mukatha kunyowa kumathandiza kusungunuka.

(5) Momwe zingathere, kuwonjezera msanga mankhwala oletsa mildew.

(6) Pogwiritsa ntchito hydroxyethyl cellulose yokhala ndi viscosity yapamwamba, kuchuluka kwa mowa wochuluka wa mayi sikuyenera kupitirira 2.5-3% (potengera kulemera), apo ayi mowa wochuluka wa mayi umakhala wovuta kugwiritsa ntchito.

Zinthu zomwe zimakhudza kukhuthala kwa utoto wa latex:

(1) Chifukwa cha kusakaniza kwambiri komanso chinyezi chochuluka pamene chikubalalika.

(2) kuchuluka kwa zinthu zina zachilengedwe zokhuthala mu fomula ya utoto ndi kuchuluka kwa kuchuluka kwahydroxyethyl cellulose.)

(3) kuchuluka kwa choyambitsa pamwamba ndi madzi mu fomula ya utoto ndizofanana.

(4 mu kapangidwe ka latex, kuchuluka kwa okosijeni wotsalira wa catalyst wa nambala.

Kuwonongeka kwa tizilombo toyambitsa matenda m'thupi.

6 popanga utoto, ndondomeko ya masitepe owonjezera chokhuthala ndiyoyenera.

Mpweya wotsalira kwambiri mu utoto, kukhuthala kwake kumawonjezeka.