Photo-thermal dual-cured organosilicon LOCA (liquid optical clear adhesive) composition
A dual-curing, silicone technology, applied in the direction of adhesives, adhesive additives, polymer adhesive additives, etc., can solve the problems of non-curing in dark areas, large shrinkage, poor reliability, etc., and achieve easy rework and defoaming Good, good bonding effect
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[0077] Example 1
[0078] Weigh 50 parts of component A1 vinyl phenyl silicone oil, 10 parts of component B1 vinyl phenyl silicone resin, 2 parts of component C1 end group hydrogen-containing phenyl crosslinking agent, component D side chain hydrogen-containing phenyl crosslinker 7 parts of coupling agent, 0.1 part of component E inhibitor, 1 part of component H1 tackifier, and 0.01 part of component I flame retardant were added to the mixer in turn, stirred for 2 hours, and then 0.1 part of component F platinum catalyst was added. Part G: 0.1 parts by weight of light-initiated platinum catalyst, stirred for 10 minutes, vacuum degassed for 5 minutes, after 3000mJ / cm 2 After energy UV curing, heating at 60°C for 10 minutes to complete curing, and the gel has a penetration of 75.
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[0079] Example 2
[0080] Weigh 70 parts of component A2 vinyl phenyl silicone oil, 4 parts of component B2 vinyl phenyl silicone resin, 5.5 parts of component C1 end group hydrogen-containing phenyl crosslinking agent, and component D side chain hydrogen-containing phenyl crosslinking agent. 2.7 parts of coupling agent, 0.1 part of component E inhibitor, 1 part of component H2 tackifier, and 0.01 part of component I flame retardant were added to the blender in sequence, stirred for 2 hours, and then 0.1 part of component F platinum catalyst was added. 0.1 parts by weight of light-initiated platinum catalyst, stirring for 10 minutes, vacuum degassing for 5 minutes, after 3000mJ / cm 2 After energy UV curing, heating at 60° C. for 10 min to complete curing, the gel has a penetration of 90.
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[0081] Example 3
[0082] Weigh 65 parts of component A1 vinyl phenyl silicone oil, 4 parts of component B1 vinyl phenyl silicone resin, 3.2 parts of component C2 end group hydrogen-containing phenyl crosslinking agent, and component D side chain hydrogen-containing phenyl crosslinker. 2.9 parts of coupling agent, 0.1 part of component E inhibitor, 1 part of component H3 tackifier, and 0.05 part of component I flame retardant were added to the mixer in sequence, stirred for 2 hours, and then 0.1 part of component F platinum catalyst was added. 0.1 parts by weight of light-initiated platinum catalyst, stirring for 10 minutes, vacuum degassing for 5 minutes, after 3000mJ / cm 2 After energy UV curing, heating at 60°C for 10 minutes to complete curing, and the gel penetration degree is 98.
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