Hydroxyethyl Cellulose (HEC)isiri-ionic mvura-soluble polymer inoshandiswa zvakanyanya mukuputira, zvinhu zvekuvaka, makemikari ezuva nezuva, mishonga, kuchera mafuta uye mamwe maindasitiri. Mumunda wejasi, HEC ine kukosha kwekushandisa kwakakosha seyakakora, stabilizer uye firimu-kuumba rubatsiro nekuita kwakanaka.
1. Basa guru reHEC mukuputira
1.1.Kukora mhedzisiro
Rimwe remabasa epakati eHEC nderekupa yakanaka thickening maitiro ekuputira. Nekugadzirisa huwandu uye viscosity modhi yeHEC, iyo yekupfekedza inogona kuve yakakodzera rheological zvivakwa panguva yekuchengetedza, kuvaka uye kugadzira firimu. Kukobvura hakungonatsiridza kumiswa uye kupesana-kugadzirisa zvimiro zvejasi, asi zvakare inovandudza kunzwa kwebrashi uye kurembera kuita panguva yekupfeka, kuderedza kupuruzira uye kurembera.
1.2.Kuvandudza kushanda kwekuvaka
HEC ine yakanakisa lubricity uye yekuyera zvivakwa. Panguva yekuputira, kusveta kana kupfapfaidza, inogona kuvandudza kupararira uye kunzwa kwekuvaka kwekuputira, zvichiita kuti jira rive nyore kushandisa zvakaenzana uye kuvandudza huwandu hwese hwekupfeka. HEC ine simba rakasimba rekuchengetedza mvura, iyo inogona kunonoka kunonoka kwemvura uye kubatsira kuvandudza nguva yakazaruka uye kushanduka kwekuvaka kwepende.
1..3.Gadzirisa iyo emulsion system
Mumvura-yakavakirwa pendi senge latex pendi, HEC, senge isiri-ionic polymer, inogona kudzikamisa mamiriro ekupararira emulsion particles uye pigment uye fillers, kudzivirira stratification uye agglomeration kunokonzerwa ne particle flocculation kana sedimentation, uye kuvandudza kuchengetedza kugadzikana kwepende.
1.4.Batsira mukugadzira firimu
Kunyangwe HEC pachayo isiri iyo firimu-inogadzira zvinhu, inogoverwa zvakaenzana mufirimu yekuputira uye inogona kubatsira mukugadzira dense uye yakatsetseka coating, kuvandudza kutendeseka uye kutaridzika kwemhando yefirimu, uye inonyanya kukodzera mukati memadziro pendi masisitimu.
2. Mabhenefiti ekuita kweHEC
Yakanaka kunyungudika kwemvura: HEC inogona kunyungudika zvakanaka mumvura inotonhora uye inopisa, uye iri nyore kuwedzera kuhurongwa hwekugadzirisa kuti iite sarudzo yakajeka kana inoshanduka.
Non-ionicity: Iine kugarisana kwakanaka neakasiyana-siyana eionic zvikamu uye zvakasiyana-siyana zvemarudzi emulsion, uye inokodzera kupfekedza masisitimu ane pH maitiro akasiyana.
Kugadzikana kwepamusoro: Inogona kuramba yakagadzikana muhupamhi hwepH (kazhinji 3 ~ 11) uye haisati yaita kurasikirwa kwekuita nekuda kwekuchinja mu acidity uye alkalinity.
Yakachengeteka uye ine ushamwari kwezvakatipoteredza: HEC inotorwa kubva kune yechisikigo cellulose, ine biodegradable, inosangana nemirairo yezvakatipoteredza, haina VOC, uye haiburitse magasi anokuvadza.
3. Mashandisiro eHEC
Paunenge uchishandisa HEC, unofanirwa kutarisisa kupararira kwayo uye kuparara kwayo. Matanho anotevera anowanzo kukurudzirwa:
Dry poda dispersion: Zvishoma nezvishoma nyudza HEC poda yakaoma mumvura yakakangwa inotonhora kudzivirira kusangana. High shear inobvongodza midziyo inogona kushandiswa kunatsiridza kuparadzira kushanda zvakanaka;
Kunyorova uye kuzvimba: Iyo yakapararira HEC particles inoda kunyatsotora mvura uye kuzvimba, izvo zvinowanzotora 10 ~ 30 maminetsi, zvichienderana neHEC modhi uye tembiricha yemvura;
Yakanyungudutswa uye pachena: Mushure mekunyorova, ramba uchimutsa kana kuwedzera tembiricha zvakafanira kuti uinyunguduse kuita mvura inoonekera inoonekera;
Wedzera kune chirevo: HEC mhinduro inogona kuwedzerwa mukutanga kana kunonoka kwezvigadziro kugadzirisa viscosity uye rheological properties yegadziriro sezvinodiwa.
Vamwe vagadziri vanopawo pre-mhinduro kana kugadzirira-kushandisa HEC, iyo inogona kuwedzerwa zvakananga kurerutsa maitiro ekushanda.
4. Mienzaniso yeHEC kushandiswa mumhando dzakasiyana-siyana dzekuputira
4.1.Interior latex pendi
Seyakanyanya kukora, HEC inovandudza iyo thixotropy uye yekuvaka kunzwa kwejasi, inosimudzira iyo anti-sagging kuita, uye inovandudza kufanana uye kutsetseka kwejasi.
4.2.Exterior wall coatings
Mukunze kwemadziro machira ane zvakakwirira zvinodikanwa zvemamiriro ekunze uye alkali kuramba, HEC inobatsira kuvandudza kudzivirira kuUV uye kuchembera, uye inonatsiridza kunamatira kwejasi kune base layer.
4.3.Zvipfeko zvine mavara uye mavara eunyanzvi
HEC inogona kubatsira kugadzirisa kusimba kwekumiswa kwezvikamu, kudzivirira kusvibiswa kwemavara emavara mumajasi ane mavara, uye kuvandudza kufanana kwekugadzirwa kwefirimu uye maitiro ekuona.
5. Chengetedzo
Dzivisa agglomeration: HEC inoda kuumba "ziso rehove" agglomerations panguva yekuwedzera mvura, iyo inoda kudzivirirwa nekunonoka kupfuudza uye nekukurudzira kunoshanda.
Dzivirira kukora zvakanyanya: Huwandu hwakawedzerwa hunoda kunyatsodzorwa kudzivirira kusagadzikana mukuvaka kana kukanganisa kwemafirimu nekuda kwekunyanyisa viscosity.
Shandisa nemapreservatives: HEC ipolymer yakasikwa iyo inoderedzwa nyore nyore nehutachiona. Inofanira kushandiswa nemishonga inochengetedza yakakodzera kuwedzera nguva yekuchengetedza.
Sechinhu chinowedzera chinoshanda chine hunyanzvi hwepamusoro, kuchengetedza kwezvakatipoteredza uye kuita kwakazara, hydroxyethyl cellulose HEC inoita basa risingadzokerike mune yazvino.mvura-based coating industry. Yayo yakanakisa kukora, kumiswa, lubrication uye kuvaka ekubatsira mabasa kwete kungovandudza kuita kwese kwezvigadzirwa zvekupfeka, asi zvakare kusangana negwara rekusimudzira kwekuchengetedzwa kwezvakatipoteredza uye yakaderera VOC maitiro. Nekuwedzera kuri kuda kwekuwedzera-kuita kwekuwedzera muindasitiri yekupfekedza, tarisiro yekushandiswa kweHEC ichawedzera uye yakawanda.
Nguva yekutumira: May-16-2025