Pendi yeLatex (inozivikanwawo sependi inobva mumvura) ipendi ine mvura semushonga, iyo inonyanya kushandiswa kushongedza nekudzivirira madziro, denga nedzimwe nzvimbo. Fomura yependi yeLatex inowanzo kuve nepolymer emulsion, pigment, filler, zvinowedzera nezvimwe zvinhu. Pakati pazvo,hydroxyethyl cellulose (HEC)chinhu chakakosha pakukora uye chinoshandiswa zvakanyanya mukupenda kwelatex. HEC haingogone chete kuvandudza kunaka kwepende uye rheology, asiwo inovandudza mashandiro ependi.
1. Hunhu hwepakutanga hweHEC
HEC ipolymer inonyungudika mumvura yakashandurwa kubva ku cellulose ine hunhu hwakanaka hwekukora, kusungirira uye kugadzira firimu. Cheni yayo yemamorekuru ine mapoka ehydroxyethyl, ayo anoibvumira kunyungudika mumvura uye kugadzira mhinduro ine viscosity yakakura. HEC ine hydrophilicity yakasimba, iyo inoigonesa kuita basa mukudzikamisa kusungirira, kugadzirisa rheology uye kuvandudza mashandiro efirimu mupendi yelatex.
2. Kudyidzana pakati peHEC ne polymer emulsion
Chinhu chikuru chependi yelatex ipolymer emulsion (yakadai se acrylic acid kana ethylene-vinyl acetate copolymer emulsion), iyo inoumba skeleton huru yefirimu rependi. Kudyidzana pakati peAnxinCel®HEC ne polymer emulsion kunonyanya kuratidzwa muzvinhu zvinotevera:
Kugadzikana kwakawedzerwa: HEC, sechinogodza, inogona kuwedzera kusimba kwependi yelatex uye kubatsira kudzikamisa zvidimbu zve emulsion. Kunyanya mu polymer emulsions dzisina kusimba zvakanyanya, kuwedzerwa kweHEC kunogona kuderedza kunyungudika kwezvidimbu zve emulsion uye kunatsiridza kugadzikana kwependi.
Mutemo wezvekurapa: HEC inogona kugadzirisa hunhu hwezvekurapa hwependi yelatex, kuitira kuti iite zviri nani pakupeta panguva yekuvaka. Semuenzaniso, panguva yekupenda, HEC inogona kuvandudza hunhu hwependi hunotsvedza uye kudzivirira kudonha kana kudzika kwependi. Pamusoro pezvo, HEC inogonawo kudzora kudzoreredzwa kwependi uye kuwedzera kufanana kwependi.
Kugadzirisa mashandiro ekupenda: Kuwedzerwa kweHEC kunogona kuvandudza kuchinjika, kupenya uye kuramba kukwenya kwekupenda. Maumbirwo eHEC emolecular anogona kushanda pamwe chete nepolymer emulsion kuti awedzere maumbirwo ese epende, zvichiita kuti ive denderedzwa uye nokudaro ichivandudza kugara kwayo kwenguva refu.
3. Kudyidzana pakati peHEC ne pigments
Pigments dziri mu latex pendi dzinowanzo sanganisira inorganic pigments (dzakadai se titanium dioxide, mica powder, nezvimwewo) uye organic pigments. Kudyidzana pakati pe HEC ne pigments kunonyanya kuratidzwa muzvinhu zvinotevera:
Kupararira kwemavara: Kukora kweHEC kunowedzera kukora kwepende yelatex, izvo zvinogona kuparadzira zviri nani zvidimbu zvemavara uye kudzivirira kuungana kwemavara kana kunaya kwemvura. Kunyanya kune mamwe zvidimbu zvemavara madiki, chimiro chepolymer cheHEC chinogona kuputira pamusoro pemavara kudzivirira kuungana kwezvidimbu zvemavara, nokudaro zvichivandudza kupararira kwemavara uye kufanana kwemavara.
Simba rinosunga pakati pepigment nefirimu rekuputira:HECMamorekuru anogona kugadzira kunyudzwa kwemuviri kana kushanda kwemakemikari pamusoro pepigment, kuwedzera simba rekubatanidza pakati pepigment nefirimu rekuputira, uye kudzivirira chiitiko chekudonha kana kupera kwepigment pamusoro pefirimu rekuputira. Kunyanya mupendi yelatex inoshanda zvakanyanya, HEC inogona kuvandudza zvinobudirira kuramba kwemamiriro ekunze uye kuramba kweUV kwepigment uye kuwedzera hupenyu hwebasa repepa rekuputira.
4. Kudyidzana pakati peHEC nevanozadza
Zvimwe zvinhu zvinozadza (zvakaita secalcium carbonate, talcum powder, silicate minerals, nezvimwewo) zvinowanzo wedzerwa papendi yelatex kuti ivandudze rheology yependi, ivandudze simba rekuviga firimu rekufukidza uye iwedzere kushanda kwependi. Kudyidzana pakati peHEC nezvinozadza kunoratidzwa muzvinhu zvinotevera:
Kumiswa kwezvizadza: HEC inogona kuchengetedza zvizadza zvichiwedzerwa papendi yelatex zviri mumamiriro akafanana ekupararira kuburikidza nekukora kwayo, zvichidzivirira zvizadza kuti zvisagadzikane. Kune zvizadza zvine saizi yakakura, kukora kweHEC kwakakosha zvikuru, izvo zvinogona kuchengetedza kugadzikana kwependi zvinobudirira.
Kupenya uye kubata kwependi: Kuwedzerwa kwezvizadza kunowanzo kukanganisa kupenya uye kubata kwependi. AnxinCel®HEC inogona kuvandudza mashandiro ependi nekugadzirisa kupararira uye kurongeka kwezvizadza. Semuenzaniso, kupararira kwakafanana kwezvimedu zvezvizadza kunobatsira kuderedza kuomarara kwependi uye kunatsiridza kupenya uye kupenya kwependi yependi.
5. Kudyidzana pakati peHEC nezvimwe zvinowedzera
Fomura yependi yelatex inosanganisirawo zvimwe zvinowedzerwa, zvakaita se defoamers, preservatives, wetting agents, nezvimwewo. Izvi zvinowedzerwa zvinogona kushanda neHEC uku zvichivandudza mashandiro ependi:
Kudyidzana pakati pevanodzima furo neHEC: Basa revanodzima furo nderekuderedza mabubbles kana furo mupendi, uye hunhu hwepamusoro hweHEC hunogona kukanganisa mashandiro evanodzima furo. HEC yakawandisa inogona kuita kuti zviomere kuti inodzima furo ibvise furo zvachose, nokudaro ichikanganisa kunaka kwependi. Nokudaro, huwandu hweHEC hwakawedzerwa hunofanira kuenzaniswa nehuwandu hwevanodzima furo kuti pave nemigumisiro yakanaka.
Kudyidzana pakati pezvinochengetedza neHEC: Basa rezvinochengetedza nderekudzivirira kukura kwetupukanana mupendi uye kuwedzera nguva yekuchengetwa kwependi. Sepolymer yechisikigo, chimiro cheHEC chinogona kusangana nezvimwe zvinochengetedza, zvichikanganisa simba rayo rekudzivirira ngura. Saka, zvakakosha kusarudza zvinochengetedza zvinoenderana neHEC.
Basa reHECMupende yelatex haisi kungowedzera kukora chete, asi kudyidzana kwayo nepolymer emulsions, pigments, fillers nezvimwe zvinowedzera pamwe chete zvinosarudza mashandiro epende yelatex. AnxinCel®HEC inogona kuvandudza rheological properties yepende yelatex, kuvandudza kupararira kwepigments nefillers, uye kuwedzera mashandiro emakanika uye kugara kwenguva refu kwependi. Pamusoro pezvo, synergistic effect yeHEC nezvimwe zvinowedzera inewo simba guru pakugadzikana kwekuchengetedza, mashandiro ekuvaka uye chitarisiko chependi yelatex. Naizvozvo, mukugadzirwa kwefomula yependi yelatex, kusarudzwa kwakakodzera kwerudzi rweHEC nehuwandu hwekuwedzera uye kuenzana kwekubatana kwayo nezvimwe zvinoshandiswa ndizvo zvakakosha pakuvandudza mashandiro ese ependi yelatex.
Nguva yekutumira: Zvita-28-2024