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High-viscosity high-strength optical transparent organic silicon adhesive and preparation method thereof

A high-strength, silicone technology, applied in the direction of polymer adhesive additives, non-polymer adhesive additives, adhesives, etc., can solve the problems of low viscosity, poor adhesion, low strength, etc., and achieve high light transmittance , High adhesion, high strength effect

Inactive Publication Date: 2014-03-12
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a transparent organic silicon adhesive for high-viscosity and high-strength optics and its preparation method, which overcomes the low viscosity and low strength of conventional organic silicon adhesives in the prior art, which are difficult for PMMA and glass Poor adhesion and other defects, and long-term natural light, ultraviolet radiation, thermal shock, high temperature and high humidity conditions all maintain good yellowing resistance

Method used

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  • High-viscosity high-strength optical transparent organic silicon adhesive and preparation method thereof
  • High-viscosity high-strength optical transparent organic silicon adhesive and preparation method thereof
  • High-viscosity high-strength optical transparent organic silicon adhesive and preparation method thereof

Examples

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Embodiment 1

[0064] The present invention is a high-viscosity and high-strength optical transparent silicone adhesive, which is composed of component A and component B with a weight ratio of 1:1, wherein,

[0065] The A component is composed of the following raw materials in parts by weight: double-capped vinyl polysiloxane with a viscosity of 100,000 centipoise such as structural formula (1) with a vinyl content of 0.04wt%, 10.00 g; a viscosity of 200 centipoise Double-capped vinyl polysiloxane such as structural formula (1), vinyl content 0.6wt%, 60.00g; vinyl MQ resin, such as molecular formula (1), viscosity 500 centipoise, vinyl content 5wt%, 27.85g ;

[0066] Viscosity promoter such as structural formula (7), 0.05g; flame retardant such as structural formula (9), 2.00g; catalyst platinum (0)-2,4,6,8-tetramethyl-2,4,6,8- Tetravinylcyclotetrasiloxane complex solution 0.10g, content 7000ppm;

[0067] The B component is composed of the following raw materials in parts by weight: double...

Embodiment 2

[0073] A high-viscosity and high-strength optical transparent silicone adhesive, which consists of component A and component B with a weight ratio of 1:1, wherein,

[0074] The A component consists of the following raw materials in parts by weight:

[0075] The base material is a double-blocked vinyl polysiloxane with a viscosity of 20,000 centipoise such as structural formula (1) with a vinyl content of 0.08wt%, 15.10 g; a double-blocked vinyl polysiloxane with a viscosity of 6,000 centipoise such as Structural formula (1) vinyl content 0.11wt%, 50.00g; vinyl MQ resin, such as molecular formula (1), viscosity 5000 centipoise, vinyl content 2wt%, 27.85g;

[0076] Viscosity promoter such as structural formula (8) 5.00g; Flame retardant such as structural formula (10) 0.05g; Catalyst is platinum (0)-2,4,6,8-tetramethyl-2,4,6,8-tetra Vinylcyclotetrasiloxane complex solution 2.00g, content 2000ppm;

[0077] The B component consists of the following raw materials in parts by weig...

Embodiment 3

[0084] A high-viscosity and high-strength optical transparent silicone adhesive, which consists of component A and component B with a weight ratio of 1:1, wherein,

[0085] The A component consists of the following raw materials in parts by weight:

[0086] A base material with a viscosity of 50,000 centipoise of double-blocked vinyl polysiloxane such as structural formula (1) with a vinyl content of 0.05 wt%, 25.50 g; a viscosity of double-blocked vinyl polysiloxane of 1,000 centipoise such as structural formula (1) Vinyl content is 0.4wt%, 50.00g; vinyl MQ resin, such as molecular formula (1), viscosity is 7000 centipoise, vinyl content is 1.5wt%, 20.00g;

[0087] Viscosity promoter such as structural formula (8) 3.00g; Flame retardant such as structural formula (10) 0.50g; Catalyst is platinum (0)-2,4,6,8-tetramethyl-2,4,6,8-tetra Vinylcyclotetrasiloxane complex solution 1.00g, content 5000ppm.

[0088] The B component consists of the following raw materials in parts by w...

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Abstract

The invention relates to a high-viscosity high-strength optical transparent organic silicon adhesive which is composed of a component A and a component B in a weight ratio of 1:1, wherein the component A is composed of the following raw materials in parts by weight: 91-99.8 parts of base material, 0.05-5 parts of viscosity promoter, 0.05-2 parts of flame retardant and 0.1-2 parts of catalyst; the component B is composed of the following raw materials in parts by weight: 83-94.95 parts of base material, 5-15 parts of crosslinking agent and 0.05-2 parts of inhibitor; and the base material of the component A and component B is one or mixture of more of vinyl-containing organopolysiloxanes, organopolysiloxanes containing branched chain groups and vinyl-containing organic silicon resins. The organic silicon adhesive has the advantages of high adhesiveness and high strength, has favorable adhesiveness with PMMA (polymethyl methacrylate) and glass, and can be cured at 50-70 DEG C within 20-40 minutes; the required internal loss tan delta is only 0.5 or so; and the organic silicon adhesive can lower the curing cost, can satisfy the encapsulation technology for devices in capable of long-time high-temperature baking, is very simple to operate, and has transparent appearance and high light transmittance after curing.

Description

technical field [0001] The invention relates to a high-viscosity, high-strength optical transparent silicone adhesive and a preparation method thereof, which can be used for bonding ITO films, glass, PC boards, PMMA, etc., and can be used in optical elements such as lenses, touch screens, and liquid crystal display panels. Adhesives used on the surface belong to the new type of silicone electronic packaging technology field. Background technique [0002] At present, the adhesives that can be used on transparent optical components include epoxy resin adhesives, rubber adhesives, unsaturated polyester adhesives, modified acrylic resin adhesives, polyurethane adhesives, and the like. [0003] The temperature resistance of epoxy resin is relatively poor, the effect of crack resistance and impact resistance is not good; the storage stability of rubber type is poor; the curing shrinkage rate of unsaturated polyester is large, easy to crack, and poor aging resistance; the heat resi...

Claims

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Application Information

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IPC IPC(8): C09J183/07C09J11/06C09J11/08
Inventor 陈维张丽娅王建斌陈田安
Owner YANTAI DARBOND TECH
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