Cov yam ntxwv ntawm Epoxy Resin Siv rau LED Encapsulation thiab Kev cuam tshuam ntawm Encapsulation Effect

 

Nrog rau kev txhim kho txuas ntxiv ntawm LED thev naus laus zis, nws cov ntawv thov hauv thaj chaw xws li teeb pom kev zoo thiab cov zaub tau dhau los ua ntau dua. Epoxy resin, raws li ib txwm siv LED encapsulation cov khoom siv, nyob hauv txoj haujlwm tseem ceeb hauv LED encapsulation vim nws cov khoom zoo, xws li cov rwb thaiv tsev siab, lub teeb xa hluav taws xob zoo, thiab lub zog tsim nyog. Txawm li cas los xij, kev ua haujlwm ntawm epoxy resin yog ze rau nws cov khoom, thiab cov khoom sib txawv ntawm cov khoom sib txawv tuaj yeem cuam tshuam rau cov nyhuv encapsulation ntawm LEDs. Yog li ntawd, kev tshawb fawb tob txog cov khoom thiab cov yam ntxwv ntawm epoxy resin nrog rau kev cuam tshuam ntawm cov khoom sib xyaw ntawm cov nyhuv encapsulation yog qhov tseem ceeb heev.

Cov Cheebtsam tseem ceeb thiab cov yam ntxwv ntawm Epoxy Resin siv rau LED Encapsulation

Epoxy cob Matrix

Epoxy resin yog ib qho polymer uas muaj epoxy pawg, uas muaj cov adhesion zoo, rwb thaiv tsev, thiab tshuaj tiv thaiv corrosion. Hauv LED encapsulation, feem ntau siv epoxy resin yog bisphenol A hom epoxy resin. Nws cov qauv molecular muaj ob pawg epoxy, uas tuaj yeem dhau los ua cov tshuaj tiv thaiv kab mob sib kis raws li kev ua ntawm tus neeg sawv cev kho kom tsim tau ib qho kev sib txuas ntawm peb sab. Cov yam ntxwv tseem ceeb ntawm epoxy resin matrix muaj xws li:

1. adhesion: Nws tuaj yeem ruaj khov rau LED nti thiab lwm yam khoom siv encapsulation, ua kom ruaj khov ntawm cov qauv encapsulation.
2. Rwb thaiv tsev: Nws muaj cov rwb thaiv tsev siab, uas tuaj yeem tiv thaiv qhov tshwm sim ntawm hluav taws xob to thiab ua kom muaj kev nyab xeeb ntawm LED.
3. Chemical Corrosion Resistance: Nws muaj kev tiv thaiv zoo rau cov tshuaj lom neeg thiab tuaj yeem tiv thaiv LED nti los ntawm cov tshuaj corrosion.

Curing Agent

Cov tshuaj tua kab mob yog ib qho tseem ceeb ntawm cov tshuaj tiv thaiv kab mob sib txuas ntawm epoxy resin. Feem ntau siv curing agents muaj xws li amine curing agents, anhydride curing agents, thiab lwm yam. Ntau hom curing agents muaj cov yam ntxwv sib txawv thiab cov tshuaj tiv thaiv.

1. Amine Curing Agents: Lawv hnov ​​​​mob nrog epoxy resin kuj sai, thiab cov khoom kho tau muaj zog thiab lub zog siab. Txawm li cas los xij, amine curing agents muaj qhov sib txawv loj heev, uas muaj qee yam cuam tshuam rau kev noj qab haus huv ntawm cov neeg ua haujlwm.
2. Anhydride Curing Agents: Lawv hnov ​​​​mob nrog epoxy resin kuj maj mam thiab yuav tsum tau kho ntawm qhov kub thiab txias. Cov khoom kho tau zoo thaum tshav kub kub thiab hluav taws xob rwb thaiv tsev, thiab cov volatility yog me me.

muab tub lim

Cov muab tub lim hauv epoxy resin feem ntau ua lub luag haujlwm ntawm kev txhim kho kev ua haujlwm thiab txo cov nqi. Feem ntau siv cov fillers muaj xws li silica, aluminium oxide, thiab lwm yam.

1. silica: Nws muaj tshuaj lom neeg ruaj khov thiab rwb thaiv tsev zoo, uas tuaj yeem txhim kho qhov tawv thiab hnav tsis kam ntawm epoxy resin. Nyob rau tib lub sijhawm, qhov sib ntxiv ntawm silica kuj tuaj yeem txo qis tus nqi ntawm cov epoxy resin thiab txo cov kev ntxhov siab thaum lub sij hawm encapsulation txheej txheem.
2. Aluminium Oxide: Nws muaj cov thermal conductivity siab, uas tuaj yeem txhim kho cov cua sov ua haujlwm ntawm epoxy resin. Hauv LED encapsulation, kev ua haujlwm zoo thaum tshav kub kub dissipation yog qhov tseem ceeb rau kev txhim kho lub neej kev pab cuam thiab luminous efficiency ntawm LEDs.

additives

Additives muaj xws li coupling agents, nplaim retardants, leveling agents, thiab lwm yam, uas plays lub luag hauj lwm nyob rau hauv kev txhim kho tej yam khoom nyob rau hauv lub epoxy resin.

1. Coupling Agents: Lawv tuaj yeem txhim kho lub zog sib txuas ntawm cov epoxy resin thiab muab tub lim, txhim kho kev ua haujlwm ntawm cov khoom sib xyaw.
2. Nplaim Retardants: Hauv qee qhov xwm txheej uas yuav tsum tau muaj kev tiv thaiv hluav taws, qhov sib ntxiv ntawm cov nplaim hluav taws tuaj yeem txhim kho cov nplaim retardant kev ua tau zoo ntawm epoxy resin.
3. Leveling Agents: Lawv tuaj yeem txhim kho qhov fluidity thiab nto flatness ntawm epoxy resin, ua rau saum npoo ntawm lub encapsulated LED smoother thiab txhim kho qhov kev ua tau zoo.

 

Kev cuam tshuam ntawm cov khoom sib txawv ntawm cov nyhuv Encapsulation

 

Kev cuam tshuam ntawm Optical Performance

1. Tus nqi ntawm Epoxy Resin Matrix thiab Curing Agent: Sib txawv proportions yuav cuam tshuam rau refractive index thiab pob tshab ntawm cov khoom kho. Thaum qhov kev faib ua feem ntawm epoxy resin matrix thiab tus neeg sawv cev kho yog qhov tsim nyog, cov khoom kho tau muaj qhov pom tseeb siab thiab qhov tsim nyog refractive index, uas tuaj yeem xa tawm tau zoo thiab cuam tshuam lub teeb thiab txhim kho lub luminous efficiency ntawm LED. Yog hais tias qhov kev faib ua feem tsis tsim nyog, cov khoom kho yuav turbid los yog muaj ib tug refractive index sib txawv, yog li cuam tshuam rau qhov kho qhov muag kev ua tau zoo ntawm LED.
2. Filler Proportion: Qhov sib ntxiv ntawm cov muab tub lim yuav hloov cov khoom kho qhov muag ntawm epoxy resin. Piv txwv li, qhov sib ntxiv ntawm silica muab tub lim yuav hloov qhov refractive index ntawm epoxy resin, yog li cuam tshuam rau txoj kev nthuav tawm ntawm lub teeb. Tus nqi tsim nyog ntawm silica muab tub lim tuaj yeem txhim kho lub teeb xa hluav taws xob ntawm epoxy resin, tab sis qhov ntau ntawm cov muab tub lim tuaj yeem ua rau muaj kev nce hauv lub teeb tawg thiab txo qis hauv lub teeb xa mus. Txawm hais tias lub luag haujlwm tseem ceeb ntawm aluminium oxide muab tub lim yog txhawm rau txhim kho cov cua sov ua haujlwm, nws tseem yuav muaj qee yam cuam tshuam rau kev ua haujlwm kho qhov muag. Ntau dhau ntawm txhuas oxide muab tub lim tuaj yeem txo qhov pom ntawm epoxy resin.
3. Additive proportion: Qhov sib ntxiv ntawm qee cov khoom ntxiv xws li cov neeg ua haujlwm qib tuaj yeem txhim kho qhov chaw tiaj tus ntawm epoxy resin, txo lub teeb pom kev thiab tawg, thiab txhim kho qhov muag pom kev. Qhov sib ntxiv ntawm cov nplaim hluav taws yuav muaj qee yam tsis zoo rau lub teeb xa hluav taws xob ntawm epoxy resin, yog li nws yog qhov tsim nyog los sib npaug ntawm cov nplaim hluav taws xob ua haujlwm thiab kev ua haujlwm kho qhov muag.

 

Influence ntawm Thermal Performance

1. Tus nqi ntawm Epoxy Resin Matrix thiab Curing Agent: Ib qho kev faib ua feem tsim nyog tuaj yeem ua rau cov epoxy resin kho tau tag nrho thiab tsim cov qauv ntoo khaub lig-txuas, txhim kho cov thermal stability. Yog tias qhov kev faib ua feem tsis tsim nyog, nws yuav ua rau kev kho tsis tiav, nrog cov pab pawg tsis muaj kev cuam tshuam, yog li txo cov thermal stability thiab cuam tshuam rau kev ua haujlwm ntawm cov cua sov ntawm LED.
2. Filler Proportion: Qhov sib ntxiv ntawm thermal conductive fillers xws li txhuas oxide tuaj yeem txhim kho cov thermal conductivity ntawm epoxy resin. Raws li qhov muab tub lim tau nce, cov thermal conductivity maj mam nce. Txawm li cas los xij, thaum qhov kev faib ua feem ntau dhau lawm, nws yuav ua rau cov dej tsis zoo ntawm cov epoxy resin, uas tsis tsim nyog rau kev siv cov txheej txheem encapsulation, thiab kuj tseem yuav cuam tshuam rau lwm yam khoom. Yog li ntawd, nws yog ib qho tsim nyog los xaiv ib qho kev faib ua feem tsim nyog kom ua tiav qhov zoo tshaj plaws tshav kub dissipation nyhuv.
3. Additive proportion: Qhov sib ntxiv ntawm cov khoom sib txuas tuaj yeem txhim kho lub zog sib txuas ntawm cov epoxy resin thiab cov muab tub lim, txhim kho cov cua sov ua kom zoo. Qee cov khoom siv ntxiv tuaj yeem cuam tshuam rau qhov thermal expansion coefficient ntawm epoxy resin, yog li cuam tshuam rau kev ua haujlwm ruaj khov ntawm LED nyob rau hauv qhov chaw kub sib txawv.

 

Influence rau Mechanical Performance

1. Tus nqi ntawm Epoxy Resin Matrix thiab Curing Agent: Thaum qhov kev faib ua feem tsim nyog, cov khoom kho tau zoo hardness, lub zog, thiab toughness. Yog tias muaj epoxy resin matrix ntau dhau lawm, cov khoom kho tau zoo yuav yog mos thiab tsis muaj zog; Txawm hais tias muaj tus neeg sawv cev kho ntau dhau, cov khoom kho tau tuaj yeem nkig dhau lawm thiab txo cov tawv nqaij.
2. Filler Proportion: Tus nqi tsim nyog ntawm cov muab tub lim tuaj yeem txhim kho cov tawv tawv thiab hnav tsis kam ntawm epoxy resin, tab sis ntau ntau ntawm cov muab tub lim yuav txo qhov tawv ntawm epoxy resin thiab ua rau nws yooj yim tawg. Piv txwv li, qhov sib ntxiv ntawm silica muab tub lim tuaj yeem ua rau lub zog ntawm cov epoxy resin, tab sis thaum cov khoom siv muab tub lim siab dhau lawm, cov khoom siv brittleness nce, thiab nws yooj yim puas thaum raug rau sab nraud.
3. Additive proportion: Coupling cov neeg ua haujlwm tuaj yeem txhim kho lub zog sib txuas ntawm cov epoxy resin thiab cov muab tub lim, yog li txhim kho cov khoom siv ntawm cov khoom sib xyaw. Kev cuam tshuam ntawm cov khoom ntxiv xws li cov neeg ua haujlwm theem ntawm cov khoom siv kho tshuab yog qhov me me, tab sis yog tias siv tsis raug, nws yuav cuam tshuam rau kev kho kom zoo ntawm epoxy resin thiab yog li cuam tshuam rau cov khoom siv kho tshuab.

xaus

Cov khoom tseem ceeb ntawm epoxy resin siv rau LED encapsulation suav nrog cov epoxy resin matrix, curing agent, muab tub lim, thiab additives, thiab lwm yam. Txhua yam khoom muaj cov yam ntxwv sib txawv, thiab lawv sib cuam tshuam rau ib leeg los txiav txim siab qhov ua tau zoo ntawm epoxy resin. Qhov sib txawv ntawm cov khoom sib txawv muaj qhov cuam tshuam loj rau LED encapsulation cov txiaj ntsig ntawm kev ua haujlwm kho qhov muag, kev ua haujlwm thermal, thiab kev ua haujlwm txhua yam. Txhawm rau kom tau txais qhov zoo tshaj plaws encapsulation nyhuv, nws yog ib qho tsim nyog yuav tsum ua kom raug tswj cov proportions ntawm txhua feem ntawm epoxy resin raws li cov kev thov tshwj xeeb ntawm LED thiab ua kom zoo dua cov txheej txheem encapsulation. Nyob rau hauv lub neej yav tom ntej, nrog kev txhim kho txuas ntxiv ntawm LED thev naus laus zis, kev ua haujlwm ntawm epoxy resin encapsulation cov ntaub ntawv tseem yuav nce ntxiv. Kev tshawb fawb ntxiv rau qhov tob ntawm cov khoom thiab cov yam ntxwv ntawm epoxy resin nrog rau kev cuam tshuam ntawm cov khoom sib piv ntawm cov nyhuv encapsulation yog qhov tseem ceeb rau kev txhawb nqa kev txhim kho ntawm LED kev lag luam. Nyob rau tib lub sijhawm, kev txhim kho cov ntaub ntawv tshiab epoxy resin encapsulation thiab kev ua kom zoo ntawm kev ua haujlwm ntawm cov ntaub ntawv uas twb muaj lawm kuj yog ib qho ntawm cov lus qhia yav tom ntej.