Maitiro ekushandisa Hydroxyethyl cellulose mu latex pendi?

Hydroxyethyl celluloseinoshandiswa zvakanyanya mu latex pendi, emulsion pendi & coatings, maitiro ekushandisa Hydroxyethyl cellulose mu latex pendi?

1. Wedzera zvakananga kune abrasive pigment

Iyi nzira ndiyo iri nyore uye inotora nguva pfupi. Matanho akadzama ndeaya:

(1) Wedzera mvura yakacheneswa yakakodzera kune vat ye-high-cut agitator (kazhinji, ethylene glycol, wetting agent uye film-forming agent inowedzerwa panguva ino)

(2) Tanga kubvongodza nekumhanya kwakaderera uye zvishoma nezvishoma wedzera hydroxyethyl cellulose

(3) ramba uchikurunga kusvikira tunhu twese twatota

(4) Kuwedzera mildew inhibitor, pH adjuster, nezvimwe.

(5)Kurudzira kusvika yese hydroxyethyl celluloseyakanyungudutswa zvachose (iyo viscosity yemushonga yakawedzera zvakanyanya) isati yawedzera zvimwe zvikamu mukugadzirisa uye kugaya kusvikira lacquer inogadzirwa.

2. kugadzirirwa doro ramai

Iyi nzira inotanga yakashongedzwa nehuwandu hwepamusoro hwedoro raamai uye yozowedzerwa kune latex pendi. Kubatsira kweiyi nzira ndeyokuti ine hukuru hukuru uye inogona kuwedzerwa zvakananga kupende yakapedzwa, asi inofanira kuchengetwa zvakanaka. Matanho uye nzira dzakafanana nematanho (1)-(4) muMethod 1, kunze kwekuti iyo inosimudzira haidiwi kuti ive yakakwirira, uye chete inosimudzira ine simba rakakwana kuchengetedza hydroxyethyl fibers yakapararira mumhinduro inoshandiswa. . anogona. Ramba uchikurudzira kusvikira yanyungudika zvachose muine viscous solution. Zvinofanira kucherechedzwa kuti mold inhibitor inofanira kuwedzerwa kuna amai doro nokukurumidza sezvinobvira.

3. neporridge

Sezvo iyo organic solvent isiri yakashata solvent yehydroxyethyl cellulose, izvi organic solvents zvinogona kushandiswa kupa porridge. Iyo inowanzo shandiswa organic solvents senge ethylene glycol, propylene glycol, uye firimu maformer (akadai sehexane kana diethylene glycol butyl acetate), mvura yechando zvakare haina kunyungudika, saka mvura yechando inowanzoshandiswa pamwe chete ne organic zvinwiwa Iyo ine porridge. Iyo porridge-senge hydroxyethyl cellulose inogona kuwedzerwa zvakananga kupende. Hydroxyethyl cellulose yakanyudzwa zvakakwana muporridge. Kana yawedzerwa papende, inonyungudika pakarepo uye inowedzera. Mushure mekuwedzera, zvakakosha kuti urambe uchikurudzira kusvikira hydroxyethyl cellulose yakanyungudutswa zvachose uye yakafanana. Kazhinji, porridge inosanganiswa nechikamu che organic solvent kana ice water uye chikamu che hydroxyethyl cellulose. Mushure memaminitsi mashanu kusvika makumi matatu, iyo hydroxyethyl cellulose inogadzirwa nehydrolyzed uye inosimuka zvinoshamisa. Kazhinji, hunyoro hwemvura muzhizha hwakanyanya uye haifaniri kushandiswa porridge.

4. Kungwarira paunenge uchishandisa hydroxyethyl cellulose mai doro

Kubva hydroxyethyl cellulose (HEC)is a granule yakagadziriswa, iri nyore kubata uye kunyungudika mumvura chero bedzi zvinhu zvinotevera zvichionekwa.

(1) Pamberi uye mushure mekuwedzera kwehydroxyethylcellulose, kubvongodza kunofanira kuenderera mberi kusvikira mhinduro yacho yakanyatsojeka uye yakajeka.

(2) Inofanira kupepetwa zvishoma nezvishoma mutangi rinosanganiswa. Usawedzera iyo hydroxyethyl cellulose iyo yakaumbwa kuita bhuroka uye spherical chimiro chakananga musanganiswa tangi.

(3) Tembiricha yemvura uye kukosha kwepH mumvura zvine hukama hwakakosha nekuparara kwehydroxyethyl cellulose, uye kutarisirwa kwakanyanya kunofanirwa kutorwa.

(4) Usawedzera mamwe alkaline zvinhu kumusanganiswa usati hydroxyethyl cellulose poda yanyoroveswa nemvura. Kuwedzera pH mushure mekunyura kunobatsira kunyungudika.

(5) Wedzera mold inhibitors nekukurumidza sezvinobvira.

(6) Paunenge uchishandisa iyo yakakwira viscosity hydroxyethyl cellulose, iyo mai yedoro yekumisikidza haifanirwe kunge yakakwira kupfuura 2.5-3% (kuburikidza nehuremu), zvikasadaro doro raamai rinonetsa kubata.