Hose yog ib feem tseem ceeb ntawm kev ntim tshuaj txhua hnub, siv dav hauv cov khoom lag luam xws li tshuaj pleev tes, cov khoom ntxuav, cov khoom siv tshuaj pleev thaiv hnub thiab lwm yam. Cov txheej txheem ib txwm muaj ntawm cov kav dej feem ntau yog cov tshuaj polyurethane ob txheej uas muaj cov kuab tshuaj. Txawm hais tias cov txheej txheem polyurethane ob txheej muaj kev ua tau zoo heev ntawm kev yooj ywm txheej thiab kev luam ntawv theem ob (bronzing), lawv cov kev ua tau zoo yog siab txog 80%. Cov ntsiab lus VOCs saum toj no ua rau nws txwv tsis pub siv, tshwj xeeb tshaj yog nyob rau xyoo tas los no, nrog rau kev txhawb nqa tas mus li ntawm kev paub txog kev tiv thaiv ib puag ncig ntawm lub tebchaws thiab cov pej xeem hauv peb lub tebchaws, kev tsim khoom thiab kev siv cov txheej txheem VOCs siab yog raug saib xyuas nruj. Nws tau mus txog qhov kev pom zoo tias cov txheej txheem hose ib puag ncig zoo cib qho hloov cov txheej txheem VOCs siab ib txwm muaj.
Tam sim no, cov txheej txheej uas paub zoo rau ib puag ncig suav nrog: 1. Cov txheej txheej dej uas muaj cov VOCs tsawg dua 10%; 2. Cov txheej txheej khov kho lossis txawm tias cov txheej txheej khov kho tag nrho nrog cov ntsiab lus khov kho siab dua 85%. Txij li thaum cov khoom siv hauv paus hose tam sim no feem ntau yog polyethylene (PE) cov khoom, cov yam ntxwv ntawm qhov tsis tshua muaj kev ntxhov siab ntawm qhov chaw thiab qhov polarity qis ntawm hom khoom no ua rau cov txheej txheej dej tsis muaj cov qauv siv hauv cov txheej txheej hose. Cov txheej txheej UV-kho tau zoo (UV-kho tau) tau dhau los ua thawj qhov kev xaiv rau cov txheej txheej uas tsis muaj kev puas tsuaj rau ib puag ncig rau cov hoses ntawm theem no vim lawv cov kev ua haujlwm siab, kev txuag hluav taws xob, thiab kev tiv thaiv ib puag ncig. Txawm li cas los xij, vim yog cov yam ntxwv ntawm cov txheej txheej UV-kho tau, thaum tib neeg siv cov txheej txheej UV-kho tau rau kev tsim cov khoom siv ntim khoom siv tshuaj txhua hnub, lawv feem ntau yuav ntsib teeb meem xws li kev tiv thaiv lub teeb tsis zoo ntawm cov txheej txheej, yooj yim daj, tawg ntawm cov txheej txheej, matte tsis zoo hnav tsis kam, nyuaj luam ntawv theem ob (bronzing), tsis hnov tsw zoo tom qab pleev xim, thiab lwm yam.
Tsab xov xwm no yuav pib los ntawm cov ntsiab cai yooj yim ntawm UV curing coatings, ua ke nrog daim ntawv thov tiag tiag, thiab sib tham tob txog cov teeb meem tseem ceeb saum toj no hauv cov txheej txheem ntawm kev txheej thiab kev kho kom zoo nkauj thib ob ntawm cov ntaub ntawv ntim hose siv hauv cov tshuaj txhua hnub. Raws li kev ua kom zoo dua cov mis txheej, raws li qhov xwm txheej tshwj xeeb ntawm cov khoom ntim khoom muab cov kev daws teeb meem tshwj xeeb rau cov teeb meem no.
Kev Taw Qhia Txog UV Curing Coatings
Kev siv tshuab photocuring yog ib txoj kev siv tshuab tshiab "ntsuab" uas tab tom loj hlob sai. Txij li xyoo 1970, kev siv tshuab photocuring tau siv dav hauv kev pleev xim, kua mem, cov neeg sawv cev sib txuas thiab cov teb kho mob. Ntawm lawv, kev siv tshuab ultraviolet light curing (UV curing) tam sim no yog kev siv tshuab teeb pom kev zoo tshaj plaws. Cov txheej UV feem ntau yog tsim los ntawm cov photoinitiators, cov resins unsaturated thiab monomers, cov khoom ntxiv rau kev tswj qhov chaw thiab cov xim thiab cov khoom sau tsim nyog. Hauv kev kho kom zoo nkauj ntawm cov khoom ntim tshuaj txhua hnub, kev siv tshuab UV curing tau siv dav hauv kev txau, luam ntawv thiab lwm yam teb. Hauv kev pleev xim ntawm cov khoom ntim tshuaj txhua hnub, cov txheej UV-curable tau ua rau nws kho sai, ci ntsa iab, tiv taus khawb zoo heev, thiab muaj cov khoom khov kho. Ua ib yam khoom siv pleev xim uas zoo rau ib puag ncig, xyoo tas los no tib neeg tau mloog ntau dua thiab ntau dua.
Txawm li cas los xij, zoo li lwm yam khoom siv, cov tshuaj pleev xim UV-kho tau kuj muaj teeb meem xws li daj, tawg, thiab tsis zoo hnav tsis kam thaum siv. Tsab xov xwm no yuav tsom mus rau kev sib tham txog ntau yam teeb meem ntawm UV coatings siv rau cov hoses. , pib los ntawm cov ua rau muaj teeb meem, muab cov txheej txheem los daws cov teeb meem no los ntawm kev tsim cov mis pleev xim mus rau cov txheej txheem tsim cov txheej txheem.
Cov teeb meem tseem ceeb thiab kev daws teeb meem thaum siv cov tshuaj pleev xim UV rau cov khoom siv ntim tshuaj txhua hnub
Ib. Ua rau thiab kev daws teeb meem ntawm kev daj
Qhov laj thawj tseem ceeb rau cov xim daj ntawm cov txheej txheem UV-kho yog tias cov txheej txheem muaj cov qauv molecular uas tuaj yeem nqus tau lub teeb ultraviolet ntawm qhov wavelength tshwj xeeb. Tom qab nqus tau lub teeb ultraviolet ntawm qhov wavelength tshwj xeeb, cov tshuaj no tsim cov kev hloov pauv zog thiab thaum kawg ua rau oxidation ntawm cov txheej txheem. Thaum qib oxidation tsis siab, nws yuav tig daj hauv qhov tsos, feem ntau hu ua "daj".
(Duab sab laug - qhov xwm txheej daj, duab sab xis - ib txwm muaj)
Cov khoom tseem ceeb hauv UV coatings uas tuaj yeem nqus tau lub teeb ultraviolet yog:
1. Cov khoom seem Photoinitiator (qhov no yog cov khoom tseem ceeb tshaj plaws uas ua rau daj)
2. Cov qauv molecular uas muaj UV ua haujlwm (qhov no ntawm UV txheej yog feem ntau yog cov khoom uas muaj cov qauv benzene nplhaib hauv UV resin lossis monomer)
3. Cov seem uas tsis tau kho thiab tsis muaj cov khoom sib txuas, thiab lwm yam khoom uas yooj yim oxidized (xws li cov amino pawg, thiab lwm yam)
2, Ua rau thiab kev daws teeb meem ntawm kev tawg txheej
Cov laj thawj tseem ceeb rau qhov khoov thiab tawg ntawm cov txheej: 1. Qhov lo rau ntawm cov txheej tsis zoo; 2. Qhov ntev ntawm cov txheej tawg yog qis tom qab kho. Cov lus hais nrov yog tias qhov tawv ntawm cov txheej tsis zoo.
Kev daws teeb meem rau kev tawg txheej:
1. Pib los ntawm kev tsim cov mis, muab cov txheej txheem nrog kev nplaum zoo dua thiab muaj zog;
2. Los ntawm kev tswj hwm cov txheej txheem txheej, cov txheej txheem tshwj xeeb yog: 1. Kev kho ua ntej ntawm lub substrate, xws li nplaim taws, corona thiab lwm yam kev kho mob ntawm lub substrate lossis kev kho ua ntej ntawm tus neeg sawv cev kho ua ntej txheej, kom ua rau lub polarity ntawm lub substrate nce thiab txhim kho qhov zoo ntawm lub substrate. 2. Thaum lub sijhawm txheej txheem txheej, qhov tuab ntawm txheej yuav tsum raug txo kom tsim nyog, thiab qhov kub kho thiab lub zog kho UV yuav tsum tau nce.
3. Ua rau thiab kev daws teeb meem ntawm cov ntxhiab tsw tsis zoo
Cov yeeb nkab uas tau coated yuav hnov ntxhiab tsw ntxhiab thaum cov khoom raug muab tso rau, tshwj xeeb tshaj yog tias cov khoom raug kaw hauv lub hnab ntim khoom ntev, thaum lub hnab ntim khoom qhib. Qhov laj thawj tseem ceeb rau cov ntxhiab tsw ntxhiab no yog tias cov tshuaj molecular me me uas tseem nyob hauv cov xim pleev xim txav mus rau qhov chaw ntawm cov txheej txheem dhau sijhawm, volatilize mus rau hauv huab cua, thiab sib sau ua ke tas li hauv qhov chaw kaw. Cov peev txheej ntawm cov tshuaj molecular me me uas tseem nyob hauv cov dej kub no feem ntau yog cov tshuaj seem (cov tshuaj uas tsis volatilized tag nrho), cov tshuaj molecular me me uas tseem nyob (kev kho tsis tiav), thiab cov tshuaj molecular me me uas tsim los ntawm photoinitiators thiab lawv cov tawg (feem ntau hu ua cov tshuaj initiator residues).
Cov hau kev los daws qhov ntxhiab tsw tom qab kho:
1. Pib txij li kev tsim cov qauv, siv lub kaw lus pib ua haujlwm siab heev kom txo qhov ntau ntawm cov pib siv; nce cov ntsiab lus ntawm cov khoom siv ntau yam hauv lub kaw lus, thiab siv cov khoom yas kom tsim nyog los txo cov khoom me me monomers, tshwj xeeb tshaj yog cov khoom me me monofunctional. Kev siv Monomer.
2. Los ntawm qhov kev xav ntawm kev tswj cov txheej txheem txheej, kev txo qhov tuab ntawm cov txheej, ua kom qhov kub kho, thiab lub zog kho UV tuaj yeem txo qhov tsim cov ntxhiab tsw tsis zoo.
四. Vim li cas thiab kev daws teeb meem rau kev tsis kam khawb tsis zoo ntawm cov yeeb nkab matte
Qhov laj thawj rau qhov tsis zoo ntawm cov txheej txheej matte yog tias cov nyhuv matte ntawm cov txheej txheej feem ntau yog tsim los ntawm qhov kev cuam tshuam ntawm qhov chaw txheej ntawm lub teeb, thiab qhov kev cuam tshuam ntawm qhov chaw txheej feem ntau yog los ntawm qhov roughness ntawm qhov chaw txheej thiab qhov chaw txheej. Kev tsis sib haum xeeb ntawm cov txheej nws tus kheej tshwm sim. Thaum ib qho chaw ntxhib raug txhuam, nws yuav coj kev sib txhuam ntau dua, ua rau cov txheej txheej yooj yim rau khawb dua li qhov chaw ci ntsa iab. Tsis tas li ntawd, cov hmoov tshuaj hauv cov txheej txheej matte yuav rhuav tshem qhov kev ncaj ncees ntawm qhov chaw txheej rau qee qhov, uas yog ib qho ntawm cov laj thawj vim li cas cov txheej txheej matte yuav raug khawb dua li cov txheej ci ntsa iab.
(Lub raj matte yooj yim khawb thiab tig dawb thaum txhuam)
Kev daws teeb meem rau cov khawb:
1. Pib los ntawm kev tsim qauv faib khoom, siv ib feem ntawm cov roj hmab matte los hloov cov hmoov hauv cov xim tuaj yeem txo qhov roughness ntawm qhov chaw txheej thiab ua rau cov xim-puag piv ntawm cov txheej hauv qab qhov kev ntseeg siab ntawm qib matte ntawm cov txheej, thiab thaum kawg ua tiav Txhim kho qhov khawb tsis kam ntawm cov nplaim txheej matte.
2. Pib los ntawm kev tswj cov txheej txheem txheej, txo qhov tuab ntawm cov txheej, ua kom qhov kub thiab txias ntawm kev kho, thiab lub zog kho UV tuaj yeem txhim kho qhov khawb tsis kam ntawm qhov chaw txheej matte.
5. Cov laj thawj thiab cov kev daws teeb meem rau kev ua haujlwm kub tsis zoo
Cov laj thawj tseem ceeb rau kev ua haujlwm tsis zoo ntawm kev kub stamping yog: 1. Cov txheej txheem tsis phim cov ntawv kub stamping, ua rau kub stamping tsis tiav lossis tsis nplaum zoo; Qhov thib ob, kev tswj cov txheej txheem thaum lub sijhawm kub stamping tsis ruaj khov.
Cov kev daws teeb meem rau kev kub hnyiab tsis zoo:
1. Los ntawm qhov kev xav ntawm cov qauv, Weixi Chemical tau tsim cov tshuaj uas muaj cov khoom kub-rhiab rau hauv cov qauv. Cov tshuaj no muaj qhov nyuaj siab thiab qhov tsis tshua muaj qhov nro ntawm chav tsev kub, tab sis thaum qhov kub nce mus txog lossis tshaj nws qhov kub hloov pauv theem, hom khoom no dhau los ntawm kev hloov pauv theem nrog qhov txo qis ntawm qhov nyuaj nrog rau qhov nce ntawm qhov nro ntawm qhov chaw. Thaum lub sijhawm ua cov txheej txheem kub stamping, txij li qhov kub ntawm qhov kub stamping nce siab sai dua qhov kub hloov pauv theem ntawm cov khoom, qhov nyuaj ntawm qhov kub stamping raug txo qis heev thiab qhov nro ntawm qhov chaw nce ntxiv, yog li txhim kho qhov kev sib txuas ntawm daim ntawv kub stamping thiab txheej thiab kev ncaj ncees ntawm cov kub stamping. Thaum cov txheej txheem bronzing tiav, qhov kub poob qis dua qhov kub hloov pauv theem thiab qhov nyuaj ntawm txheej rov qab los.
2. Los ntawm qhov kev xav ntawm kev tswj cov txheej txheem, muab qhov tseem ceeb rau kev xaiv cov ntawv bronzing thiab cov txheej txheem uas phim cov txheej txheem, thiab ua kom qhov kub thiab txias ntawm bronzing thiab lub zog nias thaum lub sijhawm bronzing nce ntxiv, uas yog qhov zoo rau kev txhim kho kev ncaj ncees thiab kev nplaum ntawm bronzing.
Cov tshuaj pleev xim UV-hom PE hose yuav maj mam hloov cov txheej polyurethane ob txheej. Nws yog kev tsim khoom hauv tebchaws uas muaj kev nyab xeeb, kev tsim khoom huv, kev txo cov pa roj carbon dioxide, thiab kev tiv thaiv ib puag ncig. Qee qhov teeb meem uas tshwm sim thaum lub sijhawm tsim cov tshuaj pleev xim UV tuaj yeem daws tau los ntawm cov tshuaj pleev xim. Kev hloov kho mis ntawm tus neeg tsim khoom, kev hloov kho cov txheej txheem ntawm tus neeg tsim khoom siv thiab lub Hoobkas ua yeeb nkab tau daws ua ke.
Shanghai Rainbow Industrial Co., Ltd.muab ib qho kev daws teeb meem rau kev ntim khoom kom zoo nkauj. Yog tias koj nyiam peb cov khoom, koj tuaj yeem tiv tauj peb,
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Email: Bobby@rainbow-pkg.com
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然而，同其他任何材料一样，UV 固化涂料在使用过程中也会存在诸如黄变、开裂、哑光耐磨性差等问题，本文将重点就应用于软管的UV 涂料常见的各种问题进行讨论，从问题产生的原因出发，提出从涂料配方设计到涂料施工过程的解决这些问题的方法。
Lub sijhawm tshaj tawm: Lub Ib Hlis-06-2023