Kuchembera Phenomena yeEpoxy Encapsulated uye Mabatiro Avo pa LED Performance

 

LED (Chiedza Emitting Diode), semhando itsva yekushanda kwepamusoro-soro, kuchengetedza simba, uye hupenyu hurefu hwechiedza, yakashandiswa zvakanyanya muminda yakadai sekuvhenekera uye kuratidza. Nekuda kwekuita kwayo kwakanaka kwemaziso, mashandiro emagetsi ekudzivirira, uye kuita kwemuchina, epoxy resin yave chinhu chinowanzoshandiswa epoxy yakavharidzirwa LED. Zvisinei, panguva yekushandiswa kwenguva refu, epoxy resin ichaita zvisingadzivisiki zviitiko zvekukwegura, izvo zvichava nemigumisiro inokosha pakushanda kwe LEDs. Kuita tsvakiridzo yakadzama pamusoro pekuchembera kwe epoxy resin uye zvazvinoita pakuita kwe LED kwakakosha zvikuru pakuvandudza kunaka uye kuvimbika kwezvigadzirwa zve LED.

Chimiro uye Nheyo yeEpoxy Encapsulated LEDs

Iyo LED chip ndiyo yakakosha chikamu che LED yekuburitsa mwenje, uye mwenje wainoburitsa inoda kuchengetedzwa uye optimized optically kuburikidza ne encapsulation zvinhu. An epoxy yakavharidzirwa LED kazhinji ine LED chip, maelectrodes, furemu yekutsigira, uye epoxy encapsulation layer. Iyo epoxy encapsulation layer haingoite basa mukuchengetedza chip kubva kune yekunze nharaunda asi zvakare inogona kuvandudza yeOptical performance ye LED, sekuwedzera kuburitsa kwechiedza uye kuenderana kwemavara.

 

Kukwegura Phenomena yeEpoxy Resin panguva Yekushandisa Kwenguva refu

(1) Optical Kuchembera Phenomena

1. Kupenya: Munguva yekushandiswa kwenguva refu, kunyanya pasi pekuita kwezvinhu zvakadai se ultraviolet rays uye kupisa, epoxy resin ichaita yellowing phenomenon. Izvi zvinodaro nekuti kemikari zvisungo muepoxy resin mamorekuru akatyoka uye nekurongwa patsva, achigadzira zvimwe zvinhu zvechromophoric, izvo zvinoita kuti ruvara rwe epoxy resin iite yero. Yellowing inoderedza kutapurirana kwemwenje ye epoxy resin, inokanganisa kupenya kwechiedza uye mavara eiyo LED.
2. Kuwedzera Kupararira Kwechiedza: Sezvo kuchembera kuchienderera mberi, kumwe kutsemuka kudiki, mabhubhu, kana twutsvina hunogona kugadzirwa mukati meepoxy resin. Izvi zvinokanganisa zvinotungamira kuwedzera kwekupararira kwechiedza mu epoxy resin. Kuwedzera kwekupararira kwechiedza kuchaita kuti chiedza chinobudiswa ne LED chiwedzere kusiyana, kuderedza kutungamira uye kupenya kwechiedza.

(2) Kukwegura Kwenyama Phenomena

1. Kuderera Mukuoma uye Simba: Chiito chenguva refu chekudziya kwemhepo, kushushikana kwemagetsi, nezvimwewo, kuchaita kuti maketani emolecular epoxy resin asununguke uye atyoke, zvichikonzera kuderera kwekuoma kwayo uye simba. Kudzikira kwekuomarara uye kusimba kunoderedza kugona kwekudzivirira kweiyo epoxy encapsulation layer ye LED chip, zvichiwedzera njodzi yekuti chip ichikuvadzwa nemichina nenyika yekunze.
2. Dimensional Shanduko: Iyo epoxy resin ichawedzera uye chibvumirano pasi pekushisa kwakasiyana uye humidity mamiriro. Iyo yakareba-yenguva yakareba yekuwedzera yekupisa uye kutenderera kutenderera kuchakonzera kushushikana kwemukati mu epoxy encapsulation layer, zvichizotungamira kune dimensional shanduko. Dimensional shanduko inogona kuita kuti mapundu aonekwe pamitsetse pakati peencapsulation layer, chip, uye furemu yekutsigira, inokanganisa mashandiro emagetsi uye kuiswa chisimbiso kweLED.

(3) Kemikari Kukwegura Phenomena

1. Hydrolysis Reaction: Munzvimbo ine hunyoro, zvisungo zvemakemikari senge ester bond mu epoxy resin zvinowanzoita hydrolysis reactions. Iyo hydrolysis reaction inotyora mamorekuru cheni ye epoxy resin, ichideredza huremu hwayo hwemamorekuru uye kuita. Izvo zvine acidic zvinhu zvinogadzirwa neiyo hydrolysis zvinogona zvakare kukanganisa iyo LED chip uye maelectrode, zvichikanganisa kushanda kwemagetsi kwe LED.
2. Oxidation Reaction: Iyo epoxy resin ichaita oxidation reaction pasi pekuita kwekupisa kwakanyanya uye oxygen, ichigadzira mamwe mapoka anoshanda senge carbonyl mapoka uye carboxyl mapoka. Iyo oxidation reaction inoshandura chimiro chemakemikari uye kushanda kweiyo epoxy resin, zvichiita kuti iwedzere brittle uye kusagadzikana.

 

Mhedzisiro yeEpoxy Resin Kuchembera pane Kuita kwe LED

(1) Kukanganisa kweOptical Performance

1. Kuderera muKupenya Kwekuita: Iyo yero uye kuwedzera kwechiedza kupararira kwe epoxy resin kuchaita kuti mwenje uwedzere kunyudzwa uye kupararira, nekudaro kuderedza kupenya kunopenya kunoburitswa kubva ku LED uye kudzikisa kupenya kwakanaka. Tsvagiridzo inoratidza kuti kana kutsvuka kwe epoxy resin kwanyanya, kupenya kwe LED kunogona kudzikira neinopfuura 10%.
2. Color Drift: Kuchembera kweiyo epoxy resin kuchachinja kutapurirana kwayo uye kuparadzira maitiro kune mwenje weavelengths akasiyana, zvichiita kuti ruvara rwechiedza chinoburitswa ne LED chinyure. Ruvara rwekudonha ruchakanganisa kuenderana kwemavara uye kurongeka kweiyo LED mukuvhenekesa uye kuratidza maapplication.

(2) Zvinokonzera Kushanda Kwemagetsi

1. Kuderera kweMagetsi Insulation Performance: Maitiro ekuchembera akadai se hydrolysis uye oxidation ye epoxy resin ichagadzira zvimwe ionic zvinhu mukati mayo, izvo zvinoderedza kushanda kwemagetsi epoxy resin. Kudzikira kwekushanda kwemagetsi ekudzivirira kunogona kukonzera kuvuza pakati pe LED chip uye furemu yekutsigira, zvichikanganisa kushanda kwakajairwa kweLED.
2. Kuwedzera muKubata Resistance: The dimensional shanduko ye encapsulation layer uye chizvarwa chemaitiro mapeji anokonzerwa nekuchembera kwe epoxy resin kunogona kutungamirira kuhutano husina kunaka pakati pe chip uye electrodes, kuwedzera kupikisa kwekubatana. Kuwedzera kwekupokana kwekusangana hakungo wedzera mashandisiro emagetsi e LED asi kunogona kukonzera kupisa kwenzvimbo kwechip, kukurumidza kuchembera kwe LED.

(3) Migumisiro paKushanda Kwekupisa

1. Kuparara kweKupisa Kupisa Kushanda: Mushure memakore epoxy resin, nzira dzemukati dzekupisa kupisa dzinogona kukuvadzwa, zvichikonzera kuderera kwekupisa kwekushisa. Iko kushatisa kwekuita kwekupisa kupisa kuchaita kuti zviome kuti kupisa kunogadzirwa neiyo LED chip kubviswe zvinobudirira, kuwedzera chip tembiricha, uye nekudaro kukanganisa kupenya kwakanaka uye hupenyu hwe LED.
2. Kuwedzera muThermal Stress: The dimensional shanduko uye kuderera kwekuomarara kunokonzerwa nekuchembera kwe epoxy resin kuchakonzera kupisa kwakanyanya mu LED panguva yekudziya kutenderera. Kuwedzera kwekushushikana kwekupisa kunogona kutungamira pakuonekwa kwekutsemuka kana delamination pamatanho pakati pechip, tsigiro furemu, uye encapsulation layer, zvichiwedzera kukanganisa kushanda kwe LED.

 

Kudzivirira uye Kuderedza Matanho eEpoxy Resin Kuchembera

(1) Kugadzirisa iyo Epoxy Resin Formula

1. Kuwedzera Anti-aging Agents: Kuwedzera anti-aging agents akadai se ultraviolet absorbers, antioxidants, uye anti-hydrolysis agents kune epoxy resin inogona kunyatsodzivisa kukwegura kwe epoxy resin. Semuenzaniso, kuwedzera huwandu hwakakodzera hwema ultraviolet absorbers kunogona kuderedza kukuvadzwa kwemwaranzi yeultraviolet kune epoxy resin uye kunonoka kuitika kweyero.
2. Kusarudza Yakakodzera Kurapa Mumiririri: Vakasiyana vanorapa vamiririri vanokanganisa dhigirii rekurapa uye kuita kweiyo epoxy resin. Kusarudza yakakodzera kurapa mumiririri kunogona kuwedzera kuchinjika-inobatanidza density uye kugadzikana kweiyo epoxy resin uye kuwedzera kugona kwayo kwekudzivirira kuchembera.

(2) Kuvandudza Encapsulation Process

1. Kudzora Mamiriro Ekurapa: Kunyatso kudzora tembiricha yekurapa, nguva, uye kudzvanywa, nezvimwewo, ye epoxy resin inogona kuve nechokwadi chekuti epoxy resin inorapwa zvizere uye kuderedza chizvarwa chekuremara kwemukati. Optimized kurapa mamiriro anobatsira pakuvandudza kunaka uye kuita kweiyo epoxy encapsulation layer.
2. Kuvandudza Kuiswa Chisimbiso kweEncapsulation: Kutora epamusoro encapsulation maitiro uye yekuisa chisimbiso kuvandudza kuiswa chisimbiso kweiyo LED encapsulation, kudzivirira kunze kwezvakatipoteredza zvinhu zvakaita semwando neokisijeni kupinda mu epoxy encapsulation layer, nekudaro kunonoka kuchembera kwe epoxy resin.

(3) Kugadzirisa Mamiriro Ekushandisa

1. Kudzora Tembiricha uye Humidity: Edza kudzora tembiricha uye hunyoro hweiyo LED inoshanda nharaunda mukati meiyo yakafanira renji, uye dzivirira iyo LED kushanda munzvimbo yepamusoro-tembiricha uye yakakwirira-yakanyorova kwenguva yakareba. Dhizaini yekupisa kupisa uye hunyoro-humbowo matanho anogona kugamuchirwa kuvandudza nzvimbo yekushandiswa kweiyo LED.
2. Kuderedza Ultraviolet Irradiation: Mukushandiswa kwe LEDs, edza kuderedza kupenya kwemwaranzi yeultraviolet pane epoxy encapsulation layer. Semuenzaniso, ultraviolet kuchengetedza layer inogona kuwedzerwa pamusoro peiyo LED kana encapsulation zvinhu zvine ultraviolet kuramba zvinogona kushandiswa.

mhedziso

Munguva yekushandiswa kwenguva refu, epoxy yakavharidzirwa LED ichasangana nekuchembera kwakasiyana-siyana, kusanganisira yekuona, yemuviri, uye makemikari maficha. Izvi zviitiko zvekuchembera zvichave nemhedzisiro yakakosha pane yekuona, yemagetsi, uye yekupisa kuita kwe LEDs. Kuburikidza nezviyero zvakadai sekugadzirisa epoxy resin formula, kuvandudza encapsulation process, nekugadzirisa nharaunda yekushandisa, kuchembera kwe epoxy resin kunogona kudzivirirwa zvinobudirira uye kudzikiswa, uye kuvimbika uye hupenyu hwebasa hwema LED hunogona kuvandudzwa. Mune ramangwana, nekuenderera mberi kwekuvandudza tekinoroji yeLED, zvinodikanwa zvekuita zve epoxy encapsulation zvinhu zvichave zvakakwirira nepamusoro. Izvo zvinodikanwa kuita imwe tsvakiridzo yakadzama pamusoro pemaitiro ekuchembera uye anti-kuchembera tekinoroji ye epoxy resin kuzadzisa zvinodiwa zvekusimudzira zveindasitiri yeLED. Panguva imwecheteyo, zvinodikanwawo kusimbisa kuchembera kwekutarisa uye kuongororwa kwezvigadzirwa zve LED panguva yekushandiswa chaiko kuti ipe hwaro hwakanyanya hwehutongi hwemhando uye optimization yemhando yezvigadzirwa zve LED.

Kuti uwane zvakawanda nezve kusarudza yakanakisa kuchembera zviitiko zve epoxy yakavharidzirwa uye maitiro avo pakuita kwe LED, unogona kushanyira DeepMaterial pa. https://www.epoxyadhesiveglue.com/category/epoxy-adhesives-glue/ nokuti zvimwe info.