Tus Cwj Pwm ntawmTuag - Bonding Adhesive Selectionntawm Kev Ntseeg ntawm LED Teeb
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Cov Ntsiab Lus Tseem Ceeb rau Tuag - Bonding Adhesives hauv LED Daim Ntawv Thov Thermal Performance Mechanical Properties Hluav taws xob rwb thaiv tsev Tshuaj tiv thaiv
Kev sib piv ntawm ntau hom kev tuag - Bonding Adhesives Epoxy - Raws li Adhesive Silicone - Raws li Adhesive Polyimide - Raws li Adhesives |
Email: bwzm12@benweilighting.com
Taw qhia
Lub teeb - Emitting Diodes (LEDs) tau dhau los ua lub teeb pom kev zoo nyob hauv ntau daim ntawv thov, xws li cov teeb pom kev dav dav mus rau lub teeb pom kev tsheb thiab teeb pom kev zoo. Kev ntseeg siab ntawm LED teeb yog qhov tseem ceeb tshaj plaws vim nws cuam tshuam ncaj qha rau lawv lub neej, kev ua haujlwm, thiab tag nrho cov nqi - kev ua tau zoo. Tuag - kev sib txuas yog cov txheej txheem tseem ceeb hauv kev tsim LED, qhov twg LED tuag yog txuas rau lub substrate. Kev xaiv ntawm tuag - daim ntawv nplaum ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab qhov kev ntseeg siab ntawm qhov kawg LED khoom.
Cov Ntsiab Lus Tseem Ceeb rau Tuag - Bonding Adhesives hauv LED Daim Ntawv Thov
Thermal Performance
LEDs ua kom sov thaum ua haujlwm. Ib tug zoo tuag - bonding nplaum yuav tsum muaj ib tug siab thermal conductivity kom zoo hloov tshav kub ntawm LED tuag mus rau lub substrate. Piv txwv li, nyob rau hauv siab - fais fab LED daim ntaub ntawv xws li txoj kev teeb pom kev zoo, lub tshav kub generated yuav ua tau ntau heev. Yog tias cov nplaum muaj cov thermal conductivity tsawg, qhov kub ntawm LED tuag yuav nce, uas tuaj yeem ua rau txo qis kev ua haujlwm ntawm luminous thiab txawm tias muaj kev puas tsuaj mus tas li. Epoxy - raws li cov nplaum nrog thermally conductive fillers xws li nyiaj flakes lossis aluminium oxide feem ntau siv. Cov fillers no txhim khu cov thermal conductivity ntawm epoxy matrix, uas tso cai rau kom zoo dua tshav kub dissipation. Ib rooj plaub ntawm cov ntsiab lus yog ib qho kev kawm ntawm ib lub hom phiaj ntawm siab - fais fab LED txoj kev teeb. Thaum pib, qib qis - nplaum nrog cov thermal conductivity tsis zoo tau siv. Tom qab ob peb lub hlis ntawm kev ua haujlwm tas mus li, lub teeb pib dim, thiab qee qhov LEDs ua tsis tiav. Thaum cov nplaum tau hloov nrog lub siab - thermal - conductivity epoxy - raws li cov nplaum, cov cua kub dissipation zoo dua, thiab lub neej ntawm LEDs tau txuas ntxiv los ntawm ntau dua 50%.
Mechanical Properties
Tuag - bonding adhesive yuav tsum muaj zog mechanical adhesion los xyuas kom meej tias LED tuag tseem txuas nrog rau cov substrate nyob rau hauv ntau yam kev ua haujlwm. Qhov no suav nrog kev tiv thaiv kev vibrations, thermal cycling, thiab mechanical stress. Hauv daim ntawv thov teeb pom kev hauv tsheb, LEDs raug cuam tshuam los ntawm lub tsheb lub cav thiab txoj kev. Ib qho nplaum nrog lub zog shear siab thiab zoo qaug zog kuj yog qhov tseem ceeb. Silicone - raws li cov nplaum yog paub txog lawv qhov yooj yim heev thiab muaj peev xwm tiv taus kev ntxhov siab. Lawv tuaj yeem nqus cov kev vibrations thiab tiv thaiv kom tsis txhob LED tuag los ntawm kev sib cais vim muaj zog mechanical. Hauv qhov piv txwv tiag - ntiaj teb no, ib lub tuam txhab tsim tsheb tau ntsib tus nqi siab ntawm LED teeb lub taub hau tsis ua haujlwm vim tuag detachment thaum lub sijhawm lav. Thawj cov nplaum siv tau tsis txaus shear zog. Tom qab hloov mus rau silicone - raws li tuag - cov nplaum nplaum, qhov tsis ua hauj lwm tus nqi poob rau yuav luag xoom, qhia qhov tseem ceeb ntawm cov khoom siv ntawm cov nplaum.
Hluav taws xob rwb thaiv tsev
Kev rwb thaiv tsev hluav taws xob tsim nyog yuav tsum tau tiv thaiv hluav taws xob luv luv - circuits ntawm LED tuag thiab substrate. Cov nplaum yuav tsum muaj hluav taws xob tiv taus siab. Hauv cov ntawv thov teeb pom kev zoo, qhov twg ntau lub LEDs tau ntim zoo, txhua qhov hluav taws xob tuaj yeem ua rau lub teeb pom kev tsis sib xws lossis ua haujlwm tsis zoo. Polyimide - raws li cov nplaum feem ntau nyiam hauv cov ntawv thov vim lawv cov khoom siv hluav taws xob zoo heev. Ib lub chaw tsim khoom pom tau tias thaum siv cov nplaum nrog sub - qauv hluav taws xob rwb thaiv tsev hauv lawv cov LED - backlit cov lus, muaj teeb meem nrog kev ua dab thiab tsis sib xws. Tom qab hloov mus rau polyimide - raws li tuag - cov nplaum nplaum, cov teeb meem hluav taws xob tau raug daws, ua rau muaj ntau dua - cov lus pom zoo.
Tshuaj tiv thaiv
LEDs yuav raug rau ntau yam ib puag ncig xws li av noo, tshuaj, thiab UV hluav taws xob. Cov tuag - cov nplaum nplaum yuav tsum muaj tshuaj tiv thaiv kom tswj tau nws qhov kev ua tau zoo dhau sijhawm. Hauv cov ntawv thov teeb pom kev zoo sab nraum zoov, piv txwv li, LEDs raug cuam tshuam los ntawm ya raws thiab UV rays los ntawm tshav ntuj. Ib qho nplaum uas tsis tiv taus cov yam ntxwv no tuaj yeem ua rau tsis zoo, ua rau poob ntawm adhesion thiab hluav taws xob ua haujlwm. Silicone adhesives kuj muaj cov tshuaj tiv thaiv zoo, tshwj xeeb tshaj yog rau ya raws thiab UV hluav taws xob. Kev tshawb fawb ntawm sab nraum zoov LED teeb pom kev zoo tau pom tias cov teeb pom kev nyab xeeb uas siv tsis yog - UV - resistant nplaum tau ntsib ib qho kev poob qis ntawm adhesion zog tom qab ib xyoos ntawm sab nraum zoov raug. Nyob rau hauv sib piv, cov neeg siv ib tug silicone - raws li tuag - bonding nplaum tuav lawv cov kev ua tau zoo thiab adhesion, hais txog qhov tseem ceeb ntawm cov tshuaj tiv thaiv.
Kev sib piv ntawm ntau hom kev tuag - Bonding Adhesives
Epoxy - Raws li Adhesive
Epoxy adhesives yog dav siv nyob rau hauv LED tuag - bonding vim lawv adhesion zoo, kuj thermal conductivity (thaum puv), thiab nqi - efficiency. Lawv kho los ntawm cov tshuaj tiv thaiv, ua kom muaj kev sib raug zoo. Txawm li cas los xij, lawv tuaj yeem ua nkig, uas yuav ua rau muaj teeb meem hauv cov ntawv thov nrog cov neeg kho tshuab siab. Piv txwv li, hauv qee cov neeg siv khoom siv hluav taws xob LED daim ntawv thov qhov chaw muaj tsawg thiab cov cuab yeej yuav raug cuam tshuam qee zaus, qhov brittleness ntawm epoxy adhesives tuaj yeem ua rau tuag tawg.
Silicone - Raws li Adhesive
Raws li tau hais ua ntej, cov nplaum silicone muaj qhov ua tau zoo heev, siab - kub tsis kam, thiab tshuaj lom neeg tsis kam. Lawv tsim nyog rau cov ntawv thov uas muaj kev ntxhov siab thiab kev cuam tshuam ib puag ncig yog kev txhawj xeeb tseem ceeb. Lawv lub ntsiab drawback yog tias lawv feem ntau muaj qis thermal conductivity piv rau qee cov epoxy nplaum nplaum. Hauv cov ntawv thov uas ob qho tib si siab - qhov kub thiab txias yuav tsum tau ua kom zoo, kev sib xyaw ntawm silicone thiab thermally conductive fillers yuav raug siv.
Polyimide - Raws li Adhesives
Polyimide nplaum yog khoom plig rau lawv cov hluav taws xob rwb thaiv tsev zoo thiab siab - kub tsis kam. Lawv feem ntau siv nyob rau hauv siab - kawg daim ntawv thov uas hluav taws xob kev ua tau zoo thiab kev ntseeg siab yog qhov tseem ceeb. Txawm li cas los xij, lawv tuaj yeem kim dua thiab muaj cov txheej txheem kho kom yooj yim dua piv rau epoxy lossis silicone nplaum.
Xaus
Kev xaiv ntawm tuag - cov nplaum nplaum yog qhov tseem ceeb hauv kev txiav txim siab qhov kev ntseeg siab ntawm LED teeb. Ntau hom adhesives muaj lawv tus kheej cov khoom tshwj xeeb, thiab kev xaiv yuav tsum ua raws li cov kev cai tshwj xeeb ntawm daim ntawv thov LED. Thermal kev ua tau zoo, txhua yam khoom, hluav taws xob rwb thaiv tsev, thiab tshuaj tiv thaiv yog txhua yam tseem ceeb uas yuav tsum tau xav txog. Los ntawm kev ua tib zoo xaiv qhov tsim nyog tuag - cov nplaum nplaum, cov tuam ntxhab tuaj yeem txhim kho lub neej ntev, kev ua tau zoo, thiab tag nrho cov teeb pom kev zoo ntawm LED, ua tau raws li qhov xav tau ntawm ntau yam kev lag luam thiab cov neeg siv khoom. Cov ntaub ntawv tshawb fawb tau pom meej meej tias cov nplaum zoo tuaj yeem tiv thaiv kev ua tsis tiav, txhim kho kev ua haujlwm zoo, thiab txo cov nqi hauv LED teeb pom kev zoo. Raws li LED teeb pom kev lag luam txuas ntxiv loj hlob thiab hloov zuj zus, kev tshawb fawb ntxiv thiab kev txhim kho hauv tuag - cov nplaum nplaum yuav yog qhov tseem ceeb kom ua tau raws li qhov yuav tsum tau muaj kev ntseeg siab ntawm cov ntawv thov tshiab thiab tawm tshiab.
