Optical Epoxy Casting Compounds
 |
Base compositions | ||
| The Marks | PEO-90 | PEO-90-1 | PEO-28 |
| Appearance and starting materials | Colorless. It has been obtained from two-step cleansed components | Colorless, the light yellowness is allowed. It has been obtained from single-step cleansed components | Yellow. It has been obtained from industrial components |
| Contains three components: an epoxy basis, hardener and curing agent | |||
| Range of application | Packaging [encapsulating] numeric & alphanumeric displays, matrix emitters and others optoelectronic devices with boosted lighting engineering characteristics in UV, visual and IR spectral regions |
Packaging [encapsulating] numeric, & alphanumeric displays, matrix emitters working in visual and IR spectral regions |
|
 |
Modifications of compounds | ||
| Appearance and starting materials | With tagging "М"
contains
three standard components, and with tagging "MB",
"MD" and "MBD" - fourth - special concentrate is added |
||
| Range of application | Packaging [encapsulating] light emitting and photodiodes with boosted lighting engineering characteristics in UV, visual and IR spectral regions | Packaging [encapsulating] LEDs and photodiodes, optrons working in visual and IR spectral regions | |
| Compound with improved extraction of products from the shapes | PEO-90М | PEO-90M-1 | PEO-28M |
| Compound with improved extraction of products from the shapes and bleaching effect | PEO-90MB | - | - |
| Compound with improved extraction of products from the shapes and light-diffusing effect | PEO-90MD | PEO-90MD-1 | PEO-28MD |
| Compound with improved extraction of products from the shapes with bleaching and light-diffusing effects | PEO-90MBD | - | - |
 |
Colored compounds | ||
| Appearance and starting materials | Contains three standard components plus fourth - concentrate of organic dyes | ||
| Range of application | Packaging [encapsulating] LEDs and photodiodes of wide color scale, including for devices of remote control | ||
| Compound of blue color | OPTOCOM-480 | - | - |
| Compound of green color | - | - | OPTOCOM-560 |
| Compound of yellow color | - | - | OPTOCOM-590 |
| Compound of orange color | - | - | OPTOCOM-610 |
| Compound of red color | - | - | OPTOCOM-650 |
| Compound of "black" color | - | - | OPTOCOM-900 |
| Compound of "white" color | - | under construction | - |
Technical
Characteristics of Optical
Epoxy Casting Compounds
| The basic properties | PEO-28M | PEO-90M | ||
| As received | Viscosity of components at 25ºC, mPa*s | A | 3400 | 3600 |
| B | 30 - 70 | 40 - 60 | ||
| Shelf life atº25ºC, mos | 12 | 6 | ||
| As mixed | Mix ratio A:B:C | 100 : 85 : 2,8 | 100 : 85 : 1,9 | |
| Viscosity of a compound at 25ºC, mPa*s | 400 - 650 | 450 - 550 | ||
| Pot life at 25ºC, hrs, not less | 8 | 8 | ||
| Gel time, mins [at temperature, ºС] | 25 [120] | 25
[120] 50 [100] |
||
| Cure
time, hrs [at temperature, ºС] |
1st cure | 1,5 [100] | 2 [90] | |
| 2nd cure | 3 [120] | 3 [120] | ||
| As cured | Coefficient of transmittance at wavelength 500 nm and thickness of layer of 1 mm, %, not less | 80 | 90 | |
| Index of refraction, nD | 1,55 | 1,55 | ||
| Coefficient of thermal expansion 1 / ºC, 10-6 | 66 | 68 | ||
| Glass transition, ºC | 110 | 110 | ||
| Moisture absorption at 25ºC for 24 hrs, % | 0,1 | 0,1 | ||
| Volume electrical resistivity at 25ºC, Оhм*cm, 1014 | 3,5 | 3,5 | ||
| Dielectric constant [on frequency, kHz] | 4,1 [1] | 4,1 [1] | ||
| Tangent of dielectric loss angle [on frequency, kHz] | 0,01 [1] | 0,006 [1] | ||
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The transmission spectrums of compounds were measured on a spectrophotometer СФ-46 at thickness of polymeric layer 10mm subject to Frenel reflection losses [experimental evidence from air].
For
technical questions and sales please contact:
e-mail: info@lfpti.ru
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