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Functional liquid adhesives Overview


UV-thermal curing type

    Specification of UV-thermal curing type adhesives

▣ High adhesive strength: ~2.7 N/㎟ on LCP
▣ Shear strength after UV curing: ~1.8 N/㎟ on Glass.

Application C/M LENS FIX HOUSING ATTACH
Item Test method Unit MRH1310L MRH1311L MRH1312L MRH1811L
Appearance Uncured naked eye - Amber resin Amber resin Amber resin Black viscous liquid
Cured naked eye (@ surface) - No blisters and cracks No blisters and cracks No blisters and cracks No blisters and cracks
Curing rate UV-DSC % 99.4 99.7 99.1 98.6
Viscosity Rheometer(@25℃) cPs 10,000 11,500 7,000 58,000
Hardness Shore 00 - 90 95 100 -
Tensile strength (@break) UTM N/㎟ 22.8 24.8 25.2 15
Normal strength UTM(substrate: LCP/glass) N/㎟ 2.5 2.0 2.7 -
Shear strength After UV curing (substrate: glass/glass) N/㎟ 1.6 0.2 1.8 27.4kgf/20㎟(FR4/ FR4)
Modulus DMA(@30℃) N/㎟ 103 104 110 400
Tg TMA 91.5 95.3 96.9 80
CTE α’(ppm/℃) ppm/℃ 70 65 62 80
α’’(ppm/℃) ppm/℃ 150 163 169 175
Dielectric constant Impedence (@ 1KHz) - 2.46 2.71 4.23 -
Dielectric strength Withstand voltage &leak current tester V/mil 5,700 5,700 5,700 -
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