Epoxy adhesive for OLED frame encapsulation and preparation method of epoxy adhesive
A technology of epoxy glue and adhesive, which is applied in the direction of adhesive, epoxy resin glue, adhesive type, etc., can solve the problems of curing agent residue, volatile matter residue, high curing temperature, etc., and achieve less curing agent residue, volatile The effect of less residue and low curing temperature
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[0055] The present invention further proposes a preparation method for preparing the above-mentioned epoxy adhesive for OLED frame encapsulation, which comprises the following steps:
[0056] Step 1: Weighing according to parts by weight: 50-80 parts of epoxy resin; 5-10 parts of epoxy thinner; 5-10 parts of toughening agent; 20-40 parts of filler; 1-5 parts of photoinitiator; 0.1-1 parts of oxygen agent; 0.3-3 parts of auxiliary agent;
[0057] Step 2: Add epoxy resin, epoxy diluent, toughener, photoinitiator, antioxidant, and additives into the container, use a high-speed disperser to stir and disperse evenly, then add filler while stirring, and then disperse at a high speed Stir for 2-3 hours until the mixture is even;
[0058] Step 3: Use a three-roll mill to grind the evenly stirred glue solution on three rolls, and grind it twice until the fineness of the filler is uniform.
[0059] The properties of the above-mentioned epoxy adhesive for OLED frame packaging are: visc...
preparation Embodiment 1
[0061] Weigh the following components:
[0062] Epoxy resin: 50g (alicyclic epoxy resin of brand UVR-6110),
[0063] Epoxy diluent: 5g (oxetane of brand CURALITE OX),
[0064] Toughening agent: 5g (polyol of grade CAPA4101),
[0065] Filler: 20g (19g of talc powder of grade HTP1, 1g of meteorological silica of grade H20)
[0066] Photoinitiator: 3g (brand Uyracure-261 aryl ferrocene salt initiator),
[0067] Antioxidant: 0.1g (antioxidant of brand antioxidant 1076),
[0068] Auxiliary: 0.3g (0.1g of defoamer of brand BYK067A; 0.1g of dispersant of brand BYK9076, 0.1g of coupling agent of brand KBM-403).
[0069] According to the above preparation method, add materials, mix, stir and disperse, and three-roll grinding, until it is uniform, then degassing and subpackaging to obtain the product.
preparation Embodiment 2
[0071] Weigh the following components:
[0072] Epoxy resin: 60g (brand TTA182 cycloaliphatic epoxy resin),
[0073] Epoxy diluent: 6g (3g of oxetane of brand CURALITE OX; 3g of aliphatic glycidyl ether of brand JD-350),
[0074] Toughening agent: 6g (brand JA-782 polyol),
[0075] Filler: 30g (28g of talc powder of grade HTP2, 2g of meteorological silica of grade AEROSIL R792)
[0076] Photoinitiator: 2g (onium salt initiator of brand Uyracure-250),
[0077] Antioxidant: 0.5g (the brand is the antioxidant of antioxidant CA),
[0078] Auxiliary: 1.5g (0.5g of defoamer of brand BYK141; 0.5g of dispersant of brand BYK2155, 0.5g of coupling agent of brand KBM-503).
[0079] According to the above preparation method, add materials, mix, stir and disperse, and three-roll grinding, until it is uniform, then degassing and subpackaging to obtain the product.
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