Kugaragara ubuziranenge bwo gucapa ibara ryera rya elastike nuburyo bwo hanze bwerekana ubwiza nubwiza bwarwo, burimo imiterere yimiterere, ubwiza nubworoherane bwo gucapa kole yera yera. Isura nziza-nziza yo gucapa elastike yera igomba kuba imwe, amazi yera yuzuye igice cya paste, yoroshye kandi iringaniye, amazi meza, hamwe nubuso bwiza. Nubwo bimeze bityo ariko, icapiro ryiza rya elastike ryera akenshi ryashizeho uburyo bukomeye, amazi mabi, flocculation no gutandukanya amazi, ubukonje bukabije, hamwe numubiri umeze nka paste mugihe cyo kubika, bigira ingaruka kuburyo butaziguye ubwiza, ibara, gutwikira imbaraga, kurwanya amazi, kuringaniza, Opacity, gloss, umusaruro wamabara nibindi biranga.
Hariho ibintu byinshi bigira ingaruka kumiterere yimiterere yo gucapa kole yera yera: ibikoresho fatizo nka resin (adhesive) guhanagura no gukwirakwiza ibintu, kubyimbye, kuzuza hamwe na formulaire nuburyo bwo gukora bizabigiraho ingaruka.
Impamvu Zibangamira Kugaragara Ubwiza bwo Gucapa Elastike Yera
1. Amavuta nibintu bigize firime yo gucapa kole yera yera. Mugihe cya polymerisiyonike yimiti ya resin, ubushyuhe, igihe, umuvuduko wibikorwa, kubika ubushyuhe, umuvuduko ukabije no kongeramo inyongeramusaruro bizatera imiti ituzuye kandi ibisigisigi Byinshi monomers bizatera imiti mibi yumubiri nu mubiri, kandi resin nayo izaterana hamwe. , bikavamo gusibanganya icapiro ryera rya elastike yera, impumuro ikomeye, gufatana nabi, guhagarika imiyoboro nibindi bintu bitajegajega. Kubwibyo, ibisigazwa bigomba kugira imiti ihamye, kubika neza, guhindagurika neza, gukomera gukomeye, koroshya ibintu biranga inkoni.
2. Ukurikije umuvuduko wibimera (amategeko ya Stoke)
V = 218r2 (P-P1) / η
Muri formula: V-kugwa umuvuduko, ㎝ / s; r-ibice bya radiyo, ㎝;
Ubunini bwa P-pigment, g / cm3; Ubucucike bwa P1, g / cm3
size -ibice by'amazi ingano, 0.1pa.s
Umuvuduko wibimera wuzuza ufite isano myinshi hamwe no gusya neza, ni ukuvuga, uko gusya kwinshi, umuvuduko wo gutembera kwuzura uzagwira. Gucapisha kole yera yera bizatandukanya amazi kandi bizunguruka mubice mugihe gito. Ubwiza rusange rero buri muri 15-20 mm. Nyamara, ibice byiza bya pigment bitinda gusa gutuza kandi ntibibuza gutura. Gucapisha kole yera ya elastike ni amazi yuzuye afite amazi adafite Newtonian, kandi ububobere bwayo bugomba gupimwa na viscometer izunguruka.
3. Ingaruka zo gucapa inyongeramusaruro zera zoroshye
Ibikoresho byo guhanagura no gukwirakwiza mugucapisha elastike yera ya mucilage irashobora gukwirakwiza neza ibyuzuye. Umuyoboro urekuye winjizwa mubigize kugirango ibice byuzuza bihagarare nta bimera, bigabanye neza ububobere bwa slurry, kandi birinde icapiro ryera ryoroshye rya elastike. n'imvura igwa; kongeramo kuringaniza bigabanya kwifata hagati yiminyururu ya macromolecular, bigabanya guterana kwibintu kandi bigabanya ubukonje. Umubyimba ufite uruhare runini muguhindura isura nziza yo gucapa kole yera yera.
4. Ingaruka zo gucapa ibintu byoroshye bya kole yera
Umuvuduko ukabije wumukangurambaga uzatera resin gusenywa nogosha cyane, kandi kongeramo nabi inyongeramusaruro nka dispersants, agent flux, na thickensers bizanatuma habaho gusenya icapiro ryera rya elastike ryera no gukora uduce duto twa gel. Igenzura igihe, ubushyuhe nibicuruzwa byiza mubikorwa.
Kugaragara Ubuziranenge Kugenzura Uburyo bwo Gucapa Elastike Yera
1. Hitamo resin ikwiranye nibisabwa byubushakashatsi
Resin nigice cyingenzi cyo gucapa elastike yera ya kole. Ibisigarira bitandukanye bifite ubunini butandukanye bwo gukwirakwiza, gutondeka imiti ya chimique, gutekinika kwa mashini, mumazi-mavuta, amavuta-mumazi na hydrophilicity, bigira uruhare runini mubigaragara. Kubwibyo, mugihe uhisemo resin, birakenewe ko dusuzuma byimazeyo ibiranga resin ubwayo, cyane cyane guhuza ibinini, kugirango uhuze guhitamo ibyuzuza ninyongeramusaruro muburyo bwimikorere.
2. Huza neza numukozi utatanye kandi uringaniza
Kuringaniza abakozi no gutatanya byakozwe nababikora bitandukanye bafite indangagaciro zitandukanye za HLB. Mubisanzwe, abatatanye hamwe nuburinganire (bushingiye kumazi) hamwe nagaciro gakomeye ka HLB bizagabanya ubukonje bwa sisitemu kurushaho; hamwe no kwiyongera kwagaciro ka HLB, ubwoko butandukanye bwo gutatanya no kuringaniza abakozi bizagabanya ububobere bwa sisitemu kandi bigire ingaruka kuri resin Nanone nini. Gukwirakwiza hydrophilique no kuringaniza ibintu bizamura ububiko bwimyandikire ya elastike yera ya elastike, kandi hydrophobique ikwirakwiza hamwe na agent iringaniza bizamura scrub yo kurwanya icapiro ryera ryera nyuma yo gukora firime. Kubwibyo, guhuza hydrophilique na hydrophobique ikwirakwiza hamwe nogutondekanya ibintu birashobora kunoza neza ububiko bwo gucapa kole yera yera. Niba hiyongereyeho ibintu byinshi byo gukwirakwiza no kuringaniza, hydrophilicity hamwe n’amazi meza bizanozwa, ariko umuvuduko wo gukaraba bizagabanuka kandi kurwanya amazi bizangirika. Niba hiyongereyeho gutatanya no kuringaniza abakozi byongeweho, bizagira ingaruka ku buryo bugaragara ubwiza bwimiterere yabyo, muri rusange rero bigomba kugenzurwa hagati ya 3% -5%.
3. Guhitamo gushyira mu gaciro kubyimbye kugirango tunoze imikorere yo gucapa kole yera yera
Kugeza ubu, umubyimba ukunze gukoreshwa mu gucapa kole yera yera irimo: aside polyacrylic, selile ether, alkry-soluble acrylic, na polyurethane itari ionic.
Umubyimba wa selile (cyane cyane harimo hydroxypropyl methyl selulose, hydroxyethyl selulose, na hydroxypropyl selulose) ufite umubyimba mwinshi kandi uhagaze neza, ariko kuringaniza nabi kandi byoroshye gutera ibimenyetso byurubuga mugucapisha ecran, kandi bigira ingaruka runaka kumurabyo wa slurry. Ibibyimba bya polyurethane bihenze kandi ntibikunze gukoreshwa mugucapisha kole yera yera. Ibibyimba bya acide polyacrylic bifite imiterere iringaniye, ntabwo byoroshye kubyara ibimenyetso byurusobe, ntibigira ingaruka kumurabyo wa slurry, bifite amazi meza birwanya umutekano hamwe nibinyabuzima bihamye, kandi bifite aho bihurira neza, kuburyo imiyoboro ya molekile iba hagati yibice, bikavamo Resin -uzuza-resin ikora urusobekerane rwurusobe, rutanga umuvuduko mwinshi wo hagati kandi muremure cyane, bigatuma icapiro rya elastike yera ryoroshye rifite imvugo nziza, kandi bigatuma igaragara ryamata yera yera-paste.
4. Koresha inzira nziza yo gukora
Umubyimba ugomba kuvangwa n'amazi mbere yo kongeramo. Ibisigarira bigomba kongerwamo mbere, kandi abashinzwe ubukangurambaga bagomba kubikwa ku muvuduko muto-wo hasi kugirango birinde kwangirika kwatewe no kogosha cyane. Mugihe cyibikorwa byo kubyara, ubwiza bwikigina bugomba kugaragara igihe icyo aricyo cyose, kandi umuvuduko ukabije nubushyuhe bwa slurry mugihe cyo kubyara bigomba kugenzurwa neza. Kandi mbere yoguhindura ibishishwa, ongeramo urugero rukwiye rwa surfactant kugirango urinde uduce duto duto.
Igihe cyo kohereza: Werurwe-04-2023