Hydroxyethyl cellulose

Hydroxyethyl cellulose (HEC) chinhu chichena kana cheyero yakapfava, chisina hwema, chisina chepfu, chine fibrous kana powdery solid chinogadzirwa ne alkaline cellulose ne ethylene oxide (kana chlorohydrin) ethers dzinonyungudika dze cellulose. Nekuti HEC ine hunhu hwakanaka hwekukora, kumisa, kuparadzira, emulsifying, bonding, film-forming, kuchengetedza hunyoro uye kupa colloids dzinodzivirira, yakashandiswa zvakanyanya mukutsvaga mafuta, machira, kugadzira mapepa nema polymers. Polymerization nedzimwe nzvimbo. Hydroxyethyl cellulose haina kugadzikana pakupisa kwakajairika nekumanikidzwa, ichidzivirira hunyoro, kupisa, uye kupisa kwakanyanya, uye ine munyu wakanaka kwazvo wekunyungudika kwema dielectrics. Mhinduro yayo yemvura inobvumirwa kuva nehuwandu hwakawanda hwemunyu uye yakagadzikana.

Mirayiridzo
Batanidzwa zvakananga mukugadzirwa

1. Wedzera mvura yakachena mubhaketi hombe ine muchina wekubikisa wakakura.

2. Tanga kusanganisa nguva dzose nekumhanya kwakaderera uye zvishoma nezvishoma sefa hydroxyethyl cellulose mumushonga zvakaenzana.

3. Ramba uchikurunga kusvika zvidimbu zvese zvanyorova.

4. Wobva waisa mishonga inouraya utachiona, zvinhu zvinowedzerwa mualkaline zvakaita sepigments, zvinobatsira mukuparadzira, mvura yeammonia.

5. Kurunga kusvika hydroxyethyl cellulose yese yanyungudika zvachose (kusimba kwemushonga kunowedzera zvakanyanya) usati wawedzera zvimwe zvikamu mufomura, wobva wakuya kusvika zvapera.

Yakashongedzerwa nedoro remumba

Nzira iyi ndeyekutanga wagadzira doro remhando yepamusoro, wozoriisa mupendi yelatex. Chakanakira nzira iyi ndechekuti ine kuchinjika kukuru uye inogona kuwedzerwa zvakananga mupendi yapera, asi inofanira kuchengetwa zvakanaka. Matanho acho akafanana nematanho 1-4 munzira 1, kunze kwekuti kusanganisa kwakanyanya hakudiwi kuti unyungudike zvachose kuita viscous solution.

Shandisa chenjedzo
Sezvo hydroxyethyl cellulose yakacheneswa pamusoro iri upfu kana cellulose solid, iri nyore kubata nekunyungudika mumvura chero bedzi zvinhu zvinotevera zvikacherechedzwa.

1. Usati waisa hydroxyethyl cellulose uye mushure mekuwedzera, inofanira kugara ichikurunga kusvika mhinduro yacho yanyatsojeka uye yakajeka.

2. Inofanira kuseferwa mubhara rekusanganisa zvishoma nezvishoma. Usaise zvakananga hydroxyethyl cellulose yakagadzirwa kuita mapundu kana mabhora mubhara rekusanganisa yakawanda kana zvakananga.

3. Tembiricha yemvura uye pH yemvura zvine hukama hwakakosha nekunyungudika kwehydroxyethyl cellulose, saka kutarisisa kwakakosha kunofanira kupihwa kwairi.

4. Usambofa wawedzera zvimwe zvinhu zvine alkaline mumusanganiswa usati wadziiswa nemvura nehupfu hwe hydroxyethyl cellulose. Kuwedzera PH mushure mekudziya kunobatsira pakunyungudika.

5. Nepose pazvinogoneka, wedzera mushonga wefungus nekukurumidza sezvinobvira.

6. Pakushandisa hydroxyethyl cellulose ine viscosity yakakura, huwandu hwedoro raamai harifanirwe kupfuura 2.5-3%, zvikasadaro doro raamai rinonetsa kushanda naro. Hyxyethyl cellulose yakarapwa mushure mekunwa kazhinji haisi nyore kugadzira mapundu kana mabhora, uye haizoumbi ma colloid asina kunyungudika mushure mekuwedzera mvura.