Txoj kev loj hlob ntawm kev ntim khoom sib xyaw kom haum rau niaj hnub no, txo thiab tshem tawm cov kuab tshuaj organic hauv cov khoom sib xyaw tau dhau los ua cov kev taw qhia ntawm kev sib koom tes ntawm tag nrho kev lag luam. Tam sim no, cov txheej txheem sib xyaw uas tuaj yeem tshem tawm cov kuab tshuaj tag nrho yog cov dej sib xyaw thiab cov kuab tshuaj tsis muaj tshuaj lom. Vim muaj kev cuam tshuam ntawm cov cuab yeej technology thiab lwm yam, cov kuab tshuaj tsis sib xyaw tseem nyob rau theem embryonic. Cov dej-raws li nplaum tuaj yeem siv ncaj qha rau hauv cov tshuab ziab khaub ncaws uas twb muaj lawm, yog li nws tau txais tos los ntawm cov tuam txhab ntim khoom lag luam hauv tsev, thiab tau ua tiav kev loj hlob sai hauv txawv teb chaws.
Cov dej-raws li kev sib xyaw yog muab faib ua cov khoom sib xyaw qhuav thiab ntub dej sib xyaw, cov khoom sib xyaw ntub dej feem ntau yog siv rau hauv cov ntawv yas, ntawv aluminium composite, dawb latex yog nrov hauv daim teb no. Nyob rau hauv yas-yas composite thiab yas-aluminium composite, dej-raws li polyurethane thiab dej-raws li acrylic polymer yog tsuas yog siv. Water-based adhesives muaj qhov zoo hauv qab no:
(1) High composite zog. Qhov hnyav molecular ntawm dej-raws li nplaum nplaum yog qhov loj, uas yog kaum ob lub sij hawm ntawm polyurethane nplaum, thiab nws lub zog sib khi feem ntau yog raws li van der Waals quab yuam, uas belongs rau lub cev adsorption, yog li cov kua nplaum tsawg heev tuaj yeem ua tiav. high composite zog. Piv txwv li, piv nrog ob lub ntsiab lus polyurethane nplaum, nyob rau hauv cov txheej txheem sib xyaw ntawm aluminized zaj duab xis, txheej ntawm 1.8g / m2 ntawm cov kua nplaum qhuav tuaj yeem ua tiav lub zog sib xyaw ntawm 2.6g / m2 ntawm cov kua nplaum qhuav ntawm ob lub ntsiab lus polyurethane nplaum.
(2) Mos, tsim nyog rau kev sib xyaw ntawm aluminium plating zaj duab xis. Ib qho dej-raws li adhesives yog softer dua ob-polyurethane adhesives, thiab thaum lawv teem tag nrho, polyurethane adhesives yog nruj heev, thaum dej-raws li nplaum nplaum yog mos heev. Yog li ntawd, cov khoom muag thiab elasticity ntawm cov dej-raws li nplaum nplaum yog qhov tsim nyog rau kev sib xyaw ntawm aluminium plating zaj duab xis, thiab nws tsis yooj yim rau kev hloov ntawm aluminium plating zaj duab xis.
(3) Tsis tas yuav mature, tom qab lub tshuab tuaj yeem txiav. Kev sib xyaw ntawm ib qho dej-raws li nplaum nplaum tsis tas yuav muaj hnub nyoog, thiab tuaj yeem siv rau cov txheej txheem tom ntej xws li slitter thiab hnab ntim tom qab disembarking. Qhov no yog vim qhov pib lub zog nplaum ntawm cov dej-raws li cov nplaum, tshwj xeeb tshaj yog lub zog shear siab, xyuas kom meej tias cov khoom yuav tsis tsim "tunnel", folding thiab lwm yam teeb meem thaum lub sij hawm sib xyaw thiab txiav. Ntxiv mus, lub zog ntawm zaj duab xis compounded nrog dej-raws li adhesives tuaj yeem nce 50% tom qab 4 teev tso. Ntawm no tsis yog lub tswv yim ntawm kev loj hlob, lub colloid nws tus kheej tsis tshwm sim crosslinking, feem ntau nrog rau qib ntawm cov kua nplaum, lub zog sib xyaw kuj nce.
(4) Thin nplaum txheej, zoo pob tshab. Vim tias gluing tus nqi ntawm cov dej-raws li adhesives me me, thiab cov concentration ntawm gluing yog siab dua li cov kua nplaum-raws li cov nplaum nplaum, cov dej uas yuav tsum tau qhuav thiab tso tawm yog tsawg dua li cov kua nplaum-raws li cov nplaum. Tom qab cov dej noo tau qhuav tag, zaj duab xis yuav dhau los ua pob tshab, vim tias cov nplaum txheej yog thinner, yog li cov pob tshab ntawm cov khoom sib xyaw kuj zoo dua li cov kua nplaum-raws li cov nplaum.
(5) Kev tiv thaiv ib puag ncig, tsis muaj teeb meem rau tib neeg. Tsis muaj cov kuab tshuaj residue tom qab ziab ntawm cov dej-raws li adhesives, thiab ntau lub tuam txhab siv dej-raws li adhesives kom tsis txhob muaj cov kuab tshuaj residual coj los ntawm kev sib xyaw, yog li kev siv cov nplaum nplaum uas muaj kev ruaj ntseg los tsim thiab tsis ua rau kev noj qab haus huv. tus neeg ua haujlwm.
Post lub sij hawm: May-27-2024