Kutaridzika kwemhando yekudhinda elastic chena glue ndiko kutaura kwekunze kwemhando uye hunhu hwayo, iyo inosanganisira chimiro chechimiro, kunaka uye fluidity yekudhinda elastic chena glue. Kutaridzika kwemhando yakanaka yekudhinda elastic chena glue inofanirwa kunge iri mvura yakafanana, chena viscous semi-paste, yakatetepa uye yakadzikama, yakanaka fluidity, uye inopenya pamusoro. Nekudaro, hurombo husina kunaka hwekudhinda elastic chena glue kazhinji ine layered solidification, kuderera kwemvura, flocculation uye kupatsanurwa kwemvura, yakawandisa viscosity, uye namatidza-yakafanana nemuviri panguva yekuchengetera, iyo inokanganisa zvakananga kunaka kwayo, ruvara, kuvhara simba, kuramba mvura, kuenzana, Opacity, gloss, ruvara goho uye zvimwe zvinhu.
Pane zvinhu zvakawanda zvinokanganisa kutaridzika kwemhando yekudhinda elastic chena glue: mbishi zvinhu senge resin (adhesive) wetting uye dispersing agent, thickener, filler uye formula yayo uye maitiro ekugadzira anozoikanganisa.
Zvikonzero Zvinokanganisa Kuonekwa Kwemhando Yekudhinda Elastic White Mucilage
1. Girisi chinhu chinoumba firimu chekudhinda elastic white glue. Munguva yemakemikari polymerization maitiro eresin, tembiricha, nguva, kukurumidza kuita, kuchengetedza kupisa, kukurumidza kumhanyisa uye kuwedzera kwezvinowedzera zvinokonzeresa kusakwana kwemakemikari kuita uye kusarira. Mamonomers akawanda anokonzeresa kusagadzikana kwemakemikari uye kugadzikana kwemuviri, uye resin ichabatana uye kubatana. , zvichikonzera delamination yekudhinda elastic chena glue, kunhuhwirira kwakasimba, kusanamatira zvakanaka, kuvharira network uye zvimwe zvinhu zvisina kugadzikana. Naizvozvo, resin inofanirwa kuve nekugadzikana kwakanaka kwemakemikari, kugadzikana kwekuchengetedza, elasticity yakanaka, kunamatira kwakasimba, kupfava uye kusiri-tsvimbo maitiro.
2. Tichitarisa kubva kune sedimentation velocity (mutemo weStokes)
V=218r2(P-P1)/η
Mune fomula: V-kudonha kumhanya, ㎝/s; R-particle radius, ㎝;
P-pigment particle density, g/cm3; P1-mvura density, g/cm3
η-mvura saizi, 0.1pa.s
Iyo sedimentation velocity yekuzadza ine hukama hwakawanda nehunyoro hwekukuya, ndiko kuti, iyo yakakura yekukuya yakatsetseka, iyo sedimentation velocity yekuzadza ichawedzerwa. Kudhinda elastic chena glue kunoparadzanisa mvura uye kuyerera mumatanho munguva pfupi. Saka iyo general fineness iri mukati me15-20μm. Nekudaro, yakatsetseka pigment particles inongononoka kugadzirisa uye haidzivisi kugadzirisa. Kudhinda elastic chena glue imvura ine viscous ine isiri-Newtonian fluidity, uye viscosity yayo inofanira kuyerwa neinotenderera viscometer.
3. Simba rekudhinda elastic white glue additives
Iyo yekunyorova uye inoparadzira mumiriri mune yekudhinda elastic chena mucilage inogona kuparadzira zvakaenzana mafirita akasiyana. Iyo yakasununguka network inounzwa mukuumbwa kwayo kuita kuti zvimedu zvekuzadza zvimire pasina kunyungudika, zvinonyatso dzikisa viscosity ye slurry, uye kudzivirira kudhinda elastic chena mucilage kubva pakuyerera. uye kunaya kwemvura layering; Kuwedzerwa kwekuyera kunoderedza kuzvidzora pakati pemacromolecular cheni, kunoderedza kukwenya kwezvinhu uye kunoderedza viscosity. Iyo thickener inoita basa rakakosha pakugadzirisa kutaridzika kwemhando yekudhinda elastic white glue.
4. Simba rekudhinda elastic white glue kugadzira maitiro
Kunyanya kumhanya kweagitator kuchaita kuti resin iparadzwe neshear yakakwirira, uye iyo isiriyo yekuwedzera yezvinowedzera senge dispersants, kuyerera maajenti, uye thickeners zvinozotungamira kune demulsification yekudhinda elastic chena glue uye kuumbwa kwezvimedu zvegel. Dzora nguva, tembiricha uye kunaka kwechigadzirwa kwemaitiro ekugadzira.
Kuonekwa Kwehutano Kudzora Nzira yekudhinda Elastic White Glue
1. Sarudza resin inokodzera formula yekugadzira zvinodiwa
Resin ndiyo inonyanya kukosha chikamu chekudhinda elastic white glue formula. Marezeni akasiyana ane akasiyana particle saizi kugovera, kemikari ion kugadzikana, kugadzikana kwemuchina, mvura-mu-mafuta, mafuta-mumvura uye hydrophilicity, ine simba guru pakuonekwa. Naizvozvo, pakusarudza resin, zvinodikanwa kuti utarise zvizere maitiro eiyo resin pachayo, kunyanya kuenderana kweiyo resin, kuitira kuronga kusarudzwa kwemafirita uye ekuwedzera mune iyo nzira formula.
2. Matanidza zvakanaka ne dispersant uye leveling agent
Malevel agents uye anoparadzira anogadzirwa nevagadziri vakasiyana vane akasiyana HLB hunhu. Kazhinji, ma disperants uye ekuyera maajenti (mvura-yakavakirwa) ane hombe HLB kukosha kunoderedza viscosity yehurongwa zvakanyanya; nekuwedzera kwehuwandu hweHLB, marudzi akasiyana-siyana ekuparadzira uye ekuyera maajenti anoderedza viscosity yegadziriro uye anokanganisa resin Uyewo yakakura. Iyo hydrophilic dispersing uye leveling agent inovandudza kugadzikana kwekuchengetera kweinodhinda chena glue, uye iyo hydrophobic inoparadzira uye yekuyera mumiririri inovandudza kukwesha kuramba kwekudhinda elastic chena glue mushure mekugadzirwa kwefirimu. Naizvozvo, musanganiswa wehydrophilic uye hydrophobic dispersing uye leveling agents anogona kunyatso kuvandudza kuchengetwa kwekudhinda elastic white glue. Kana imwe yekuparadzira uye yekuyera mumiririri ichiwedzerwa, iyo hydrophilicity uye fluidity inovandudzwa, asi kukurumidza kwayo kwekugeza kunodzikiswa uye kushomeka kwayo kwemvura kuchadzikira. Kana yakanyanyisa kuparadzira uye mumiririri wekuenzanisa akawedzerwa, zvinokanganisa zvakananga kunaka kwekutaridzika kwayo, saka kazhinji inofanirwa kudzorwa pakati pe3% -5%.
3. Kusarudzwa kunonzwisisika kwemafuti ekuvandudza kushanda kwekudhinda elastic white glue
Parizvino, makobvu anowanzoshandiswa pakudhinda elastic white glue anosanganisira: polyacrylic acid, cellulose ether, alkali-soluble acrylic, uye non-ionic associative polyurethane.
Cellulosic thickeners (kunyanya kusanganisira hydroxypropyl methyl cellulose, hydroxyethyl cellulose, uye hydroxypropyl cellulose) vane hukuru hwekukora uye kugadzikana kwakanaka, asi kusaenzana uye kuri nyore kukonzeresa mamakisi ewebhu mukudhindwa kwescreen, uye vane imwe mhedzisiro pakupenya kwe slurry. Polyurethane thickeners anodhura uye haawanzo shandiswa mukudhinda elastic white glue. Polyacrylic acid thickeners ane zvakanaka kuenzana zvivakwa, hazvisi nyore kugadzira network mamaki, hazvikanganise kupenya kwe slurry, kuve nekudzivirira kwemvura kwakanaka uye kugadzikana kwebiological, uye kuenderana kwakanaka, kuitira kuti mamolecular links aumbe pakati pezvimedu, zvichikonzera Resin. -filler-resin inoumba chimiro chetiweki, ichipa yakakwira yepakati uye yakakwira shear kumhanya, ichiita kudhinda elastic chena glue kuve ne rheology iri nani, uye kuita kutaridzika kwemukaka chena fluid semi-paste.
4. Shandisa nzira yakarurama yekugadzira
Iyo thickener inofanira kuderedzwa nemvura isati yawedzera. Iyo resin inofanira kuwedzerwa kutanga, uye agitator inofanira kuchengetwa iri pakati-yakaderera kumhanya kudzivirira resin demulsification inokonzerwa nekuveura zvakanyanya. Munguva yekugadzira, iyo viscosity ye slurry inofanirwa kucherechedzwa chero nguva, uye kukurumidza kukurumidza uye tembiricha ye slurry panguva yekugadzirwa kunofanirwa kudzorwa zvakanaka. Uye usati wagadzirisa slurry, wedzera huwandu hwakakodzera hwesurfactant kuchengetedza resin zvimedu kubva ku demulsification.
Nguva yekutumira: Mar-04-2023