Kev laus Phenomena ntawm Epoxy Encapsulated thiab lawv cov kev cuam tshuam rau LED Performance

 

LED (Lub Teeb Emitting Diode), raws li hom tshiab ntawm kev ua haujlwm siab, txuag hluav taws xob, thiab lub neej ntev lub teeb ci, tau siv dav hauv thaj chaw xws li teeb pom kev zoo thiab tso saib. Vim nws qhov kev ua tau zoo kho qhov muag, hluav taws xob rwb thaiv tsev, thiab kev ua haujlwm zoo, epoxy resin tau dhau los ua cov khoom siv feem ntau rau epoxy encapsulated LED. Txawm li cas los xij, thaum siv mus sij hawm ntev, epoxy resin yuav inevitably raug kev laus tshwm sim, uas yuav muaj kev cuam tshuam loj rau kev ua haujlwm ntawm LEDs. Ua qhov kev tshawb fawb tob txog kev laus phenomena ntawm epoxy resin thiab lawv cov kev cuam tshuam ntawm LED kev ua tau zoo yog qhov tseem ceeb rau kev txhim kho cov khoom zoo thiab kev ntseeg siab ntawm LED.

Qauv thiab Txoj Cai ntawm Epoxy Encapsulated LEDs

LED nti yog qhov tseem ceeb ntawm LED rau emitting lub teeb, thiab lub teeb nws generates yuav tsum tau kev tiv thaiv thiab optimized optically los ntawm cov khoom encapsulation. Ib epoxy encapsulated LED feem ntau yog muaj LED nti, electrodes, ib qho kev txhawb nqa ncej, thiab txheej txheej epoxy encapsulation. Lub epoxy encapsulation txheej tsis tsuas yog ua lub luag haujlwm hauv kev tiv thaiv cov nti los ntawm ib puag ncig sab nraud, tab sis kuj tuaj yeem txhim kho qhov muag pom kev ua haujlwm ntawm LED, xws li nce lub teeb tshem tawm kev ua haujlwm thiab xim sib xws.

 

Kev laus Phenomena ntawm Epoxy Resin thaum siv mus ntev

(1) Optical Aging Phenomena

1. Tsaus ntuj: Thaum lub sij hawm siv mus ntev, tshwj xeeb tshaj yog nyob rau hauv qhov kev txiav txim ntawm tej yam xws li ultraviolet rays thiab tshav kub, epoxy resin yuav undergo ib tug yellowing tshwm sim. Qhov no yog vim hais tias cov tshuaj bonds nyob rau hauv epoxy resin molecules yog tawg thiab reorganized, tsim ib co chromophoric tshuaj, uas ua rau cov xim ntawm epoxy resin tig daj. Yellowing yuav txo cov teeb pom kev zoo ntawm epoxy resin, cuam tshuam rau lub luminous efficiency thiab xim yam ntxwv ntawm LED.
2. Nce Lub Teeb Scattering: Raws li kev laus zuj zus tuaj, qee qhov tawg me me, npuas, lossis cov khoom tsis huv yuav raug tsim tawm hauv epoxy resin. Cov teeb meem no yuav ua rau muaj kev nce hauv kev tawg ntawm lub teeb hauv epoxy resin. Qhov nce ntawm lub teeb tawg yuav ua rau lub teeb tawm los ntawm LED ntau qhov sib txawv, txo qhov kev coj ncaj ncees thiab qhov ci ntawm lub teeb.

(2) Physical Aging Phenomena

1. Txo hauv Hardness thiab Strength: Lub sijhawm ua haujlwm ntev ntawm thermal cycles, mechanical stress, thiab lwm yam, yuav ua rau cov saw hlau molecular ntawm epoxy resin so thiab so, ua rau txo qis hauv nws cov hardness thiab lub zog. Qhov kev txo qis hauv hardness thiab lub zog yuav tsis muaj zog tiv thaiv lub peev xwm ntawm epoxy encapsulation txheej rau LED nti, ua rau muaj kev pheej hmoo ntawm cov nti raug kev puas tsuaj los ntawm lub ntiaj teb sab nraud.
2. Dimensional Hloov: Cov epoxy resin yuav nthuav dav thiab cog lus nyob rau hauv qhov sib txawv ntawm qhov kub thiab txias. Lub sij hawm ntev thermal expansion thiab contraction cycles yuav ua rau muaj kev ntxhov siab nyob rau hauv cov txheej txheem epoxy encapsulation, yog li ua rau kev hloov pauv. Cov kev hloov pauv loj tuaj yeem ua rau muaj qhov sib txawv ntawm qhov sib cuam tshuam ntawm txheej txheej encapsulation, nti, thiab cov ncej txhawb nqa, cuam tshuam rau kev ua haujlwm hluav taws xob thiab kev sib khi ntawm LED.

(3) Chemical Aging Phenomena

1. Hydrolysis Reaction: Nyob rau hauv ib qho chaw ntub dej, cov khoom siv tshuaj lom neeg xws li ester bonds hauv epoxy resin yog qhov ua rau muaj kev cuam tshuam hydrolysis. Cov tshuaj tiv thaiv hydrolysis yuav rhuav tshem cov saw hlau molecular ntawm epoxy resin, txo nws qhov hnyav molecular thiab kev ua haujlwm. Cov tshuaj acidic tsim los ntawm hydrolysis kuj tseem tuaj yeem ua rau LED nti thiab electrodes, cuam tshuam rau kev ua haujlwm hluav taws xob ntawm LED.
2. Oxidation Reaction: Cov epoxy resin yuav raug oxidation cov tshuaj tiv thaiv nyob rau hauv qhov kev txiav txim ntawm kub thiab oxygen, tsim ib co functional pawg xws li carbonyl pawg thiab carboxyl pawg. Cov tshuaj tiv thaiv oxidation yuav hloov cov qauv tshuaj thiab kev ua haujlwm ntawm epoxy resin, ua rau nws nkig thiab tsis ruaj khov.

 

Kev cuam tshuam ntawm Epoxy Resin Aging ntawm LED Kev Ua Haujlwm

(1) Kev cuam tshuam rau kev ua haujlwm kho qhov muag

1. Txo hauv Luminous Efficiency: Lub teeb daj thiab ua kom lub teeb tawg ntawm cov epoxy resin yuav ua rau ntau lub teeb raug absorbed thiab tawg, yog li txo cov luminous flux tawm ntawm LED thiab txo cov luminous efficiency. Kev tshawb fawb qhia tau hais tias thaum lub yellowing ntawm epoxy resin yog hnyav, lub luminous efficiency ntawm LED yuav txo los ntawm ntau tshaj 10%.
2. Xim Drift: Kev laus ntawm cov epoxy resin yuav hloov nws txoj kev xa tawm thiab cov yam ntxwv tawg rau lub teeb ntawm qhov sib txawv wavelengths, ua rau cov xim ntawm lub teeb emissions los ntawm LED mus drift. Xim drift yuav cuam tshuam cov xim sib xws thiab qhov tseeb ntawm LED hauv cov teeb pom kev zoo thiab cov ntawv thov.

(2) Kev cuam tshuam rau hluav taws xob ua haujlwm

1. Txo hauv hluav taws xob rwb thaiv tsev Performance: Kev laus xws li hydrolysis thiab oxidation ntawm epoxy resin yuav tsim ib co ionic tshuaj nyob rau hauv nws, uas yuav txo tau cov hluav taws xob rwb thaiv tsev kev ua tau zoo ntawm epoxy resin. Qhov txo qis hauv hluav taws xob rwb thaiv tsev kev ua tau zoo tuaj yeem ua rau cov pa taws ntawm LED nti thiab cov ncej txhawb nqa, cuam tshuam rau kev ua haujlwm ntawm LED.
2. Nce nyob rau hauv kev sib cuag Resistance: Cov kev hloov pauv ntawm cov txheej txheej encapsulation thiab tiam ntawm qhov sib txawv ntawm qhov sib txawv tshwm sim los ntawm kev laus ntawm cov epoxy resin tuaj yeem ua rau kev sib cuag tsis zoo ntawm cov nti thiab cov electrodes, ua rau muaj kev sib cuag. Qhov nce ntawm kev tiv thaiv yuav tsis tsuas yog nce lub zog noj ntawm LED tab sis kuj tseem tuaj yeem ua rau lub zos overheating ntawm cov nti, ua kom lub hnub nyoog ntawm LED.

(3) Kev cuam tshuam rau thermal Performance

1. Deterioration ntawm tshav kub dissipation Performance: Tom qab cov epoxy resin muaj hnub nyoog, txoj hauv kev thermal conduction tuaj yeem raug puas, ua rau txo qis hauv thermal conductivity. Lub deterioration ntawm tshav kub dissipation kev ua tau zoo yuav ua rau nws nyuaj rau lub tshav kub generated los ntawm LED nti kom zoo dissipated, ua rau lub nti kub, thiab yog li cuam tshuam rau lub luminous efficiency thiab lifespan ntawm lub LED.
2. Nce hauv Thermal Stress: Qhov hloov pauv thiab txo qis hauv qhov tawv tawv los ntawm kev laus ntawm epoxy resin yuav ua rau muaj kev ntxhov siab ntau dua hauv LED thaum lub sij hawm thermal. Qhov nce hauv thermal kev ntxhov siab tuaj yeem ua rau cov tsos ntawm cov kab nrib pleb lossis delamination ntawm qhov sib cuam tshuam ntawm cov nti, cov ncej txhawb nqa, thiab txheej txheej encapsulation, ntxiv rau kev ua haujlwm tsis zoo ntawm LED.

 

Kev Tiv Thaiv thiab Kev Txom Nyem rau Epoxy Resin Aging

(1) Optimizing Epoxy Resin Formula

1. Ntxiv Anti-aging Agents: Ntxiv cov tshuaj tiv thaiv kev laus xws li ultraviolet absorbers, antioxidants, thiab anti-hydrolysis agents rau epoxy resin tuaj yeem tiv thaiv kev laus ntawm epoxy resin. Piv txwv li, ntxiv qhov tsim nyog ntawm ultraviolet absorbers tuaj yeem txo qhov kev puas tsuaj ntawm ultraviolet rays rau epoxy resin thiab ncua qhov tshwm sim ntawm yellowing.
2. Xaiv tus neeg saib xyuas tsim nyog: Cov tshuaj tua kab sib txawv yuav cuam tshuam rau kev kho kom zoo thiab kev ua haujlwm ntawm epoxy resin. Xaiv tus neeg saib xyuas kom tsim nyog tuaj yeem ua rau muaj qhov sib txuas sib txuas thiab ruaj khov ntawm epoxy resin thiab txhim kho nws lub peev xwm los tiv thaiv kev laus.

(2) Txhim kho cov txheej txheem Encapsulation

1. Tswj cov txheej txheem Curing: Precisely tswj lub curing kub, lub sij hawm, thiab siab, thiab lwm yam, ntawm epoxy resin tuaj yeem xyuas kom meej tias cov epoxy resin tau kho tag nrho thiab txo cov tiam ntawm cov teeb meem sab hauv. Optimized curing tej yam kev mob yuav pab tau rau kev txhim kho qhov zoo thiab kev ua tau zoo ntawm epoxy encapsulation txheej.
2. Txhim kho lub sealing ntawm lub Encapsulation: Txais cov txheej txheem encapsulation siab heev thiab cov ntaub ntawv sib khi los txhim kho kev sib khi ntawm LED encapsulation, tiv thaiv cov xwm txheej sab nraud xws li ya raws thiab oxygen los ntawm kev nkag mus rau epoxy encapsulation txheej, yog li ua rau qeeb ntawm kev laus ntawm epoxy resin.

(3) Optimizing Kev Siv Ib puag ncig

1. Tswj qhov kub thiab av noo: Sim tswj qhov kub thiab av noo ntawm LED chaw ua haujlwm nyob rau hauv ib qho chaw tsim nyog, thiab zam kom tsis txhob LED ua haujlwm nyob rau hauv qhov kub thiab txias ib puag ncig rau lub sijhawm ntev. Thaum tshav kub kub dissipation tsim thiab kev ntsuas dej noo tuaj yeem siv los txhim kho kev siv ib puag ncig ntawm LED.
2. Txo Ultraviolet Irradiation: Hauv daim ntawv thov ntawm LEDs, sim txo cov irradiation ntawm ultraviolet rays ntawm epoxy encapsulation txheej. Piv txwv li, txheej txheej tiv thaiv ultraviolet tuaj yeem muab ntxiv rau saum npoo ntawm LED lossis cov ntaub ntawv encapsulation nrog ultraviolet kuj siv tau.

xaus

Thaum siv mus ntev, epoxy encapsulated LED yuav ntsib ntau yam kev laus, nrog rau kev kho qhov muag, lub cev, thiab tshuaj lom neeg. Cov xwm txheej kev laus no yuav muaj kev cuam tshuam loj rau kev kho qhov muag, hluav taws xob, thiab thermal ua haujlwm ntawm LEDs. Los ntawm kev ntsuas xws li kev ua kom zoo ntawm epoxy resin mis, txhim kho cov txheej txheem encapsulation, thiab optimizing qhov chaw siv, kev laus ntawm epoxy resin tuaj yeem tiv thaiv tau zoo thiab txo qis, thiab kev ntseeg siab thiab kev pabcuam lub neej ntawm LEDs tuaj yeem txhim kho. Nyob rau hauv lub neej yav tom ntej, nrog kev txhim kho txuas ntxiv ntawm LED thev naus laus zis, kev ua tau zoo ntawm cov khoom siv epoxy encapsulation yuav ua siab dua thiab siab dua. Nws yog ib qho tsim nyog yuav tsum tau ua qhov kev tshawb fawb tob ntxiv ntawm cov txheej txheem kev laus thiab kev siv thev naus laus zis los tiv thaiv kev laus ntawm epoxy resin kom tau raws li kev xav tau ntawm kev lag luam LED. Nyob rau tib lub sijhawm, nws tseem yuav tsum tau ntxiv dag zog rau kev saib xyuas kev laus thiab kev soj ntsuam ntawm cov khoom siv LED thaum siv tiag tiag los muab lub hauv paus tseeb dua rau kev tswj xyuas kom zoo thiab kev ua tau zoo ntawm cov khoom siv LED.

Yog xav paub ntxiv txog kev xaiv qhov zoo tshaj plaws kev laus tshwm sim ntawm epoxy encapsulated thiab lawv cov kev cuam tshuam ntawm LED kev ua tau zoo, koj tuaj yeem them mus ntsib DeepMaterial ntawm https://www.epoxyadhesiveglue.com/category/epoxy-adhesives-glue/ yog xav paub ntau info.