Kupesvedzera Kweakasiyana Kurapa Mamiriro paKuita kweMa LED Akakomberedzwa neEpoxy Resin.

 

LED (Chiedza Emitting Diode), sechinhu chinonyanya kushanda, chekuchengetedza simba, uye chinogara kwenguva refu semiconductor chiedza sosi, yakashandiswa zvakanyanya mundima dzakawanda dzakadai semwenje, kuratidza, uye kutaurirana. Epoxy resin yave chinhu chinowanzo shandiswa mu LED encapsulation nekuda kwehunhu hwayo hwakanaka, kusanganisira yakanaka yekuona pachena, insulation, simba remuchina, uye kemikari corrosion resistance. Nekudaro, iyo yekurapa maitiro epoxy resin ine zvakakosha pakuita kwe LEDs. Mamiriro ekurapa akasiyana anogona kushandura zvakanyanya mamiriro ekurapa uye ekupedzisira zvimiro zveepoxy resin, nekudaro zvichikanganisa kuita kwese kwe LEDs. Naizvozvo, kunyatsodzidza nezve pesvedzero yeakasiyana ekurapa mamiriro pakuita kwe Ma LED akaputirwa ne epoxy resin yakakosha zvikuru pakuvandudza kunaka kwezvigadzirwa zve LED uye nekugadzirisa iyo encapsulation process.

Pesvedzero yeMamiriro Ekurapa paKurapa Reaction yeEpoxy Resin

1. Kufurira kweTembiricha

Tembiricha ndechimwe chezvinhu zvakakosha zvinokanganisa maitiro ekurapa epoxy resin. Kuita pakati peepoxy resin uye mumiririri wekurapa ndeye exothermic kemikari reaction. Kuwedzera kwekushisa kunomhanyisa kukurumidza kuita. Mukati meimwe nhanho, tembiricha yepamusoro inosimudzira kufamba kwema molecular thermal motion, ichiwedzera kudhumhana uye mukana wekudhumhana kunoshanda pakati peanorapa agent mamorekuru uye epoxy resin mamorekuru, nekudaro kukurumidza kufambira mberi kwemaitiro ekurapa. Semuyenzaniso, kune yakajairwa bisphenol A mhando epoxy resin uye amine inorapa agent system, zvakakodzera kuwedzera tembiricha yekurapa inogona kupfupisa zvakanyanya nguva yekurapa. Nekudaro, kana tembiricha yakakwira zvakanyanya, maitiro ekurapa anogona kunge akanyanya, zvichiita kuti mhinduro iome kudzora, kuunza kushushikana kwemukati, uye kutokonzera kuora kwe epoxy resin uye kuderera kwekuita kwayo. Sezvineiwo, kana tembiricha yakadzikira, mwero wekurapa unononoka, zvichikonzera kurapa kusina kukwana uye kukanganisa kuoma, simba, uye zvimwe zvinhu zveepoxy resin.

2. Pesvedzero Yenguva

Nguva yekurapa inowirirana zvakanyanya nekupisa. Pane imwe tembiricha, nguva yakakwana inodiwa kuti ive nechokwadi chekuti epoxy resin uye mumiririri anorapa anoita zvizere kuti awane kurapa kwakakwana. Sezvo nguva yekurapa ichiwedzera, iyo ye-cross-linking degree ye epoxy resin inovandudza zvishoma nezvishoma, uye mamwe makemikari zvisungo zvinoumbwa pakati pemaketani emaketani, zvichiita zvishoma nezvishoma kuwedzera maitiro epoxy resin zvakadai sekuoma, simba, uye modulus. Nekudaro, kana nguva yekurapa yasvika pane imwe nhanho, kuvandudzwa kwezvinhu zve epoxy resin kunowanzo kudzika. Kuenderera mberi nekuwedzera nguva yekurapa hakuna mhedzisiro pakuvandudzwa kwezvivakwa asi kunoderedza kugona kwekugadzira. Naizvozvo, kuona yakakodzera nguva yekurapa kwakakosha pakuve nechokwadi chezvimiro zveepoxy resin uye kugona kwekugadzira.

3. Kufurira Humidity

Humidity zvakare ine imwe pesvedzero pakurapa maitiro epoxy resin. Munzvimbo ine hunyoro, hunyoro hunogona kutora chikamu mukurapa maitiro epoxy resin, kushandura maitiro ekuita uye chimiro chezvigadzirwa. Kune rimwe divi, hunyoro hunogona kuita neanorapa, huchipedza chikamu cheanorapa uye zvichikonzera kusakwana kwekupora. Nekune rimwe divi, hunyoro hunogona kugadzira tutubu tudiki kana pores mukati meepoxy resin, zvichideredza compactness uye zvimiro zveepoxy resin. Pamusoro pezvo, hunyoro hunogonawo kukanganisa zvimiro zveepoxy resin, senge tension yepasi uye kunyorova, uye nekudaro kukanganisa simba rayo rekubatanidza neiyo LED chip uye zvimwe zvinhu zvekuvharisa.

 

Pesvedzero yeKurapa Mamiriro ezvinhu paOptical Properties ye LEDs

1. Kufurira paLuminous Intensity

Iyo yekurapa dhigirii ye epoxy resin inokanganisa zvakananga kujeka kwayo, uye nekudaro inokanganisa kupenya kwechiedza che LEDs. Kana kurapa kusina kukwana, kune mamorekuru asina kugadziriswa uye voids mukati me epoxy resin, izvo zvinozoita kuti kuwedzere kupararira uye kunyura kwechiedza, nokudaro kuderedza kupenya kwechiedza che LEDs. Sezvineiwo, yakanyatsorapwa uye dense epoxy resin inogona kuita mwenje zviri nani, ichideredza kurasikirwa kwechiedza uye kuwedzera kupenya kupenya kwema LED. Mukuwedzera, kushushikana kwemukati kunokonzerwa nemamiriro asina kunaka ekurapa kunogonawo kuchinja maitiro epoxy resin, zvakadai sekugadzira birefringence phenomenon, iyo inokanganisa nzira yekuparadzira uye kupararira kwesimba kwechiedza.

2. Kupesvedzera paKuenderana Kwemavara

Mamiriro akasiyana ekurapa anogona kukonzera shanduko mune refractive index ye epoxy resin, zvichikanganisa kuenderana kwemavara e LEDs. Kana iyo refractive index ye epoxy resin isiri yunifomu, mwenje wewavelengths wakasiyana uchaita madhigirii akasiyana erefraction uye kupararira kana ichipararira mu epoxy resin, zvichikonzera kutsauka kwemavara. Semuyenzaniso, kana tembiricha yakanyanyisa kana kuti nguva yekurapa yanyanya kurebesa, mchinjika-unobatanidza density ye epoxy resin inogona kunge yakakurisa, ichiwedzera refractive index, uye nekudaro zvichiita kuti ruvara rwema LEDs rifambe kuenda kune pfupi-wave direction. Kana hunyoro hwakwira, kuvepo kwehunyoro mu epoxy resin kunogona kuderedza iyo refractive index, zvichiita kuti ruvara ruchinje rwakananga kune refu-wave nzira.

3. Kufurira paKuora kweChiedza

Kuora kwechiedza chimwe chezviratidzo zvakakosha zvekuyera hupenyu hwebasa re LEDs. Mamiriro asina kunaka ekurapa achaita kuti kuderera kwekugadzikana kwe epoxy resin, zvichiita kuti zvive nyore kune simba rekunze kwezvakatipoteredza zvinhu (zvakadai sekushisa, humidity, ultraviolet rays, nezvimwewo) panguva yekushandiswa kwenguva refu, nokudaro kukurumidza kuora kwechiedza. Semuenzaniso, isina kukwana kurapwa epoxy resin inokonzeresa uye kuchembera pasi pekushisa kwakanyanya uye ultraviolet nemwaranzi, zvichikonzera kuderera zvishoma nezvishoma kwezvinhu zvayo zvemaziso uye kukurumidza kwekuora kwechiedza. Zvisinei, mamiriro ekurapa akakodzera anogona kugonesa epoxy resin kuti iite yakagadzikana yemuchinjikwa-inobatanidza chimiro, kuvandudza kushanda kwayo kwekudzivirira kukwegura uye kuderedza chiyero chekuora kwechiedza.

 

Pesvedzero yeKurapa Mamiriro ezvinhu paMagetsi Properties ye LEDs

1. Kufurira pane Insulation Performance

Sechinhu chinodzivirira che LED encapsulation, mamiriro ekurapa epoxy resin ane simba rinokosha pakushanda kwekudzivirira kwe LEDs. Kana kurapa kusina kukwana, kune mapoka epolar asina kugadziriswa uye voids mukati me epoxy resin, iyo inoderedza kudzivirira kwayo kwekudzivirira uye kuwedzera njodzi yekudonha. Uye zvakare, humidity ine zvakare yakakosha kukanganisa kweiyo insulation performance ye epoxy resin. Kune iyo epoxy resin inorapwa munzvimbo ine hunyoro, kuvapo kwehunyoro kunozowedzera kuderedza kushanda kwayo kwekudzivirira. Sezvineiwo, yakanyatsorapwa uye dense epoxy resin ine yakanaka insulation performance, iyo inogona kunyatso bvisa iyo LED chip kubva kudunhu rekunze uye kuve nechokwadi chekushanda kwakajairika kwema LED.

2. Kufurira paMagetsi Parameters

Kuchinja kwemamiriro ekurapa kunogona kukanganisa magetsi emagetsi e LEDs, zvakadai semhepo yekuenda mberi uye reverse leakage current. Iyo isina kukwana yakarapwa kana yakasimbiswa epoxy resin inogona kuita mechanical kushushikana pane LED chip, zvichikonzera kukanganisa kwechimiro chelatiti mukati me chip, uye nokudaro kukanganisa kushanda kwayo kwemagetsi. Semuenzaniso, iyo mechanical stress inogona kuchinja maitiro ePN junction ye LED chip, zvichiita kuti kuwedzerwa kwemhepo yekufambisa mberi kana kuwedzera kwemashure ekudonha. Pamusoro pezvo, mamiriro ekurapa asina kufanira anogonawo kukanganisa kupesana kwekubatana pakati peepoxy resin neiyo LED chip, uye nekudaro kukanganisa mashandiro emagetsi e LEDs.

 

Pesvedzero yeKurapa Mamiriro ezvinhu paThermal Properties ye LEDs

1. Pesvedzero pane Kupisa Kubvisa Kuita

Huwandu hwekupisa hunogadzirwa kana maLED ari kushanda, uye kuita kwakanaka kwekupisa kupisa kwakakosha pakuita kuti ive nechokwadi chekushanda uye hupenyu hwemagetsi. Ma LED akaputirwa ne epoxy resin. Iyo yekupisa conductivity ye epoxy resin inowirirana zvakanyanya nemamiriro ayo ekurapa. Iyo isina kukwana yakarapwa epoxy resin ine yakawanda voids uye kuremara mukati, izvo zvinozoderedza kupisa kwayo conductivity uye kutadzisa conduction yekupisa. Mukuwedzera, kana hunyoro hwakakwirira, kuvapo kwehunyoro mu epoxy resin kunowedzera kuderedza kupisa kwayo kwekushisa nokuti kupisa kwemvura kunenge kwakadzikira kudarika epoxy resin. Sezvineiwo, yakanyatsorapwa uye dense epoxy resin ine yakakwirira yekupisa conductivity, iyo inogona kunyatso kufambisa kupisa kunogadzirwa neiyo LED chip, kuderedza chip tembiricha, uye kuvandudza kugadzikana kwekupisa kwema LED.

2. Kufurira paCoefficient yeThermal Expansion

Kusapindirana kweiyo coefficients yekuwedzera kwekupisa pakati pe LED chip, iyo epoxy resin, uye zvimwe zvinhu zve encapsulation zvinotungamira kuchizvarwa chekupisa kunetseka kana tembiricha ichichinja, zvichikanganisa kushanda uye kuvimbika kwe LEDs. Mamiriro ekurapa anozokanganisa coefficient yekupisa kwekuwedzera kweiyo epoxy resin. Kazhinji kutaura, kukwirisa dhigirii rekurapa, kunowedzera kudzika-kwekubatanidza kweiyo epoxy resin, uye kudiki kwayo coefficient yekuwedzera kupisa. Kana mamiriro ekurapa asina kufanira, iyo coefficient yekupisa kwekuwedzera kwe epoxy resin inogona kusiyana zvakanyanya kubva kune iyo ye LED chip uye zvimwe encapsulation zvinhu. Kana tembiricha yachinja, huwandu hukuru hwekushushikana kwekupisa hunogadzirwa, izvo zvinogona kukonzera kutsemuka pakati peiyo chip uye epoxy resin, uye kunyange kukuvadza chip.

 

Pesvedzero yeKurapa Mamiriro ezvinhu paMechanical Properties ye LEDs

1. Kupesvedzera Pakuoma uye Kusimba

Mamiriro ekurapa anosarudza zvakananga dhigirii rekubatanidza epoxy resin, uye dhigirii rekubatanidza rinoenderana zvakanyanya nekuoma uye kusimba kweiyo epoxy resin. Kurapa iyo epoxy resin pane tembiricha yakakodzera uye nguva inogona kuita kuti igadzire yakakwana yekubatanidza-yakabatana chimiro, zvishoma nezvishoma ichiwedzera kuoma kwayo uye simba. Zvisinei, kana tembiricha yakanyanyisa kana kuti nguva yakarebesa, iyo epoxy resin inogona kunge yakanyanyisa kuporeswa, zvichikonzera kunyanyisa kuyambuka-inobatanidza cheni dzemamorekuru, kuwedzera brittleness. Kunyangwe iyo kuoma uye simba zvakawedzerwa kune imwe nhanho, iyo kuomarara inodzikira, uye inowanzo putika. Sezvineiwo, isina kukwana kurapwa epoxy resin ine yakaderera kuomarara uye simba uye haigone kuchengetedza zvinobudirira iyo LED chip.

2. Kufurira paImpact Resistance

Iwo ma LED anogona kuve ari pasi pemakanika maitiro panguva yekushandiswa, saka kukanganiswa kwemaitiro ezvawo ecapsulation zvinhu kwakakosha. Mamiriro ekurapa akakodzera anogona kupa iyo epoxy resin nekusimba uye kusimba kwakanaka, zvichiita kuti ikwanise kutora uye kuparadzira simba rekuita uye kudzivirira iyo LED chip kubva mukukuvadzwa. Nekudaro, nekuda kwekuremara uye inhomogeneity yemukati maumbirwo ayo, isina kupora kurapwa epoxy resin inotsemuka kupararira uye kupatsanuka kana ichinge yakanganiswa, ichideredza kukanganisa kupikisa kwe LEDs.

mhedziso

Mukupedzisa, kurapa mamiriro senge tembiricha, nguva, uye hunyoro zvine zvakakosha zvakasiyana-siyana zvinokanganisa kushanda kwe Ma LED akaputirwa ne epoxy resin. Munguva ye LED encapsulation process, zvine musoro kudzora mamiriro ekurapa ndiyo kiyi yekuve nechokwadi chekuita uye kuvimbika kwe LEDs. Kuti uwane yakanakisa mashandiro eLED, zvinodikanwa kunyatso kukwirisa ma paramita akadai seye tembiricha yekurapa, nguva, uye hunyoro zvinoenderana nehunhu hweepoxy resin uye nedhizaini yezvinodiwa maLEDs, kuitira kuti uwane kupora kwakazara kwe epoxy resin uye mutambo wakanaka wekuita. Panguva imwecheteyo, zvinodikanwa zvakare kuti uenderere mberi nekudzidza hukama hwemukati pakati pemamiriro ekurapa, maitiro ekurapa epoxy resin, uye mashandiro e LEDs, uye kuenderera mberi nekuongorora maitiro matsva ekurapa uye matekinoroji kuti asangane nekuwedzera kwemhando yepamusoro uye kuita zvinodiwa zvezvigadzirwa zve LED. Mune ramangwana, nekuenderera mberi kwekuvandudza tekinoroji yeLED uye nekuwedzera kwendima dzayo dzekushandisa, tsvakiridzo uye optimization ye epoxy resin encapsulation process ichave yakanyanya kukosha, uye inotarisirwa kupa rutsigiro rwakasimba rwekusimudzira kwakasimba kweindasitiri yeLED.

Kuti uwane zvakawanda nezve kusarudza yakanakisa pesvedzero yeakasiyana ekurapa mamiriro pakuita kwe LEDs akafukidzwa ne epoxy resin, unogona kushanyira DeepMaterial pa. https://www.epoxyadhesiveglue.com/category/epoxy-adhesives-glue/ nokuti zvimwe info.