Cov yam ntxwv cuam tshuam rau electroplating ntawm hluav taws xob cua sov raj

Cov yam ntxwv cuam tshuam rau electroplating ntawm hluav taws xob cua sov raj

ABS resin kuj muaj kev ua haujlwm zoo electroplating thiab yog cov khoom siv tsis yog hlau electroplating zoo heev. Lub adhesion ntawm txheej thiab substrate muaj zog dua lwm cov yas, thiab kev kho deg metallization los ntawm cov txheej txheem electroplating muab ABS resin zoo li qub, feem ntau siv los hloov cov hlau. Txhim kho kev ua tau zoo ntawm ABS resin, ua rau nws tshwj xeeb ntawm ob qho tib si yas thiab hlau zoo. Yas electroplating yog siv dav hauv kev lag luam hluav taws xob, kev tshawb fawb txog kev tiv thaiv hauv tebchaws, cov khoom siv hauv tsev, thiab cov khoom siv niaj hnub. Nws tuaj yeem txuag cov ntaub ntawv hlau, ua kom yooj yim ua cov cuab yeej siv, txo cov cuab yeej zoo, txhim kho cov tsos ntawm cov khoom, txhim kho hluav taws xob cua sov kev ua tau zoo, thiab txhim kho lub zog ntawm cov khoom siv. 301M hom ABS resin tsim los ntawm Lanzhou Petrochemical Company yog electroplating hom ABS resin. Kab lus no txheeb xyuas ntau yam cuam tshuam thaum lub sij hawm kev sim electroplating ntawm 301M hom ABS resin.

1. Yam cuam tshuam rau electroplating

Ib qho yooj yim electroplating txheej txheem rau 301M ABS cob.

1.1 Degreasing

Thaum lub sij hawm ua thiab lwm yam kev kho mob ntawm cov yas, nws yog inevitable uas cov roj stains yuav nyob rau hauv cov yas. Los ntawm kev tshem cov roj, cov av ntawm qhov chaw plated tuaj yeem raug tshem tawm, uas ua lub luag haujlwm tseem ceeb hauv kev txhawb nqa cov coarsening zoo, txhim kho cov adhesion ntawm txheej, thiab txuas ntxiv lub neej kev pab cuam ntawm coarsening tov. Yog li ntawd, cov khoom siv plated yuav tsum tau ua ntej kho cov roj tshem tawm ua ntej electroplating.

1.2 Kev coarsening

Coarsening yog hais txog kev siv cov tshuaj etchants los roughen qhov saum npoo ntawm ABS resin, ua rau thaj chaw saum npoo av, thiab tsim qee pawg polar, ua rau saum npoo ntawm hydrophobic mus rau hydrophilic. Qhov no tuaj yeem txhim kho qhov adhesion ntawm cov yas nto thiab txheej txheej. Cov txheej txheem tshuaj coarsening yuav tsum tau tswj cov coarsening kub thiab lub sij hawm zoo. Lub coarsening kub feem ntau tswj ntawm 55-65 degree , thiab lub sij hawm coarsening yuav tsum yog 25-40 feeb. Tshuaj roughening yog ib qho tseem ceeb heev, vim hais tias qhov zoo ntawm roughening ncaj qha cuam tshuam rau uniformity thiab qhov tob ntawm pore tsim ntawm cov yas nto. Overetching los yog tsis txaus etching tsis tuaj yeem ua rau muaj zog adhesion ntawm cov khoom coated. Tsis tas li ntawd, los ntawm kev kuaj xyuas infrared spectroscopy, nws tau pom tias muaj cov pab pawg nquag xws li - COOH, - CHO, - OH, - SO3H thiab lwm pawg polar ntawm cov tshuaj roughened yas. Cov pawg polar no tuaj yeem tsim cov tshuaj tiv thaiv kev quab yuam nrog cov hlau txheej, yog li txhim kho lub zog sib txuas ntawm cov txheej. Qhov siab dua cov ntsiab lus ntawm butadiene hauv ABS yas, lub zog adhesion ntawm txheej. Cov ntsiab lus butadiene hauv electroplated ABS yas nce mus txog 22 feem pua ​​​​rau 24 feem pua. Qhov kev sim qhia tau hais tias cov txheej adhesion ntawm electroplated ABS resin 301M yog ntau tshaj ob zaug ntawm cov tsis electroplated ABS resin 301.

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