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Liquid optical transparent adhesive with impact resistance and preparation method thereof

An optically transparent adhesive and impact-resistant technology, applied in the direction of adhesives, etc., can solve the problems of large light refraction loss, poor impact resistance, low refractive index, etc., to reduce refraction loss, good impact resistance, improve contrast and clarity degree of effect

Inactive Publication Date: 2013-10-23
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the refractive index of most liquid optically transparent adhesives is low, generally below 1.50, which is greatly different from the refractive index of glass (1.52), so that the refraction loss of light at the interface is relatively large; in addition, the impact resistance of liquid optically transparent adhesives is known. Not good, the internal friction is large, often tanδ>0.8, which will cause the problem of cracking and delamination in some special occasions

Method used

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  • Liquid optical transparent adhesive with impact resistance and preparation method thereof
  • Liquid optical transparent adhesive with impact resistance and preparation method thereof
  • Liquid optical transparent adhesive with impact resistance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Accurately weigh 30g of hydrogenated polybutadiene-type urethane acrylate (as shown in general formula (I), R represents the part that does not contain isocyanate groups in the molecular structure of 1,6-hexamethylene diisocyanate, R 1 Representative-C 2 h 4 -, R 2 Representative-H), 40g liquid polybutadiene resin (Polyoil 110), 30g isooctyl acrylate, 4g photoinitiator 184, 0.2g antioxidant BHT, add the above components into the double planetary power mixer in turn, Stir and mix evenly, after vacuuming and degassing (vacuum degree -0.1MPa, 0.1h), let it stand naturally to room temperature, and seal the package.

Embodiment 2

[0031] Accurately weigh 28g of hydrogenated polybutadiene polyurethane acrylate (as shown in the general formula (I), R represents the part that does not contain isocyanate groups in the molecular structure of isophorone diisocyanate, R 1 Representative-C 3 h 6 -, R 2 Represent-CH 3 ), 60g liquid polybutadiene resin (Polyoil 130), 15g isodecyl acrylate, 2g photoinitiator 1173, 1g photoinitiator TPO, 0.2g antioxidant 1010, add the above components in turn to the double planetary dynamic mixing In the blender, mix evenly, after vacuuming and degassing (vacuum degree -0.09MPa, 0.5h), let it stand naturally to room temperature, seal the package, and get it.

Embodiment 3

[0033] Accurately weigh 16g of hydrogenated polybutadiene polyurethane acrylate (as shown in the general formula (I), R represents the part of the molecular structure of methylcyclohexyl diisocyanate that does not contain isocyanate groups, and the left end R 1 Representative-C 2 h 4 -C 3 h 6 -, right end R 1 Representative-C 2 h 4 -; left end R 2 stands for -H, right end R 2 Represent-CH 3 ), 60g liquid polybutadiene resin (Polyoil 130), 20g lauryl acrylate, 4g photoinitiator 184, 1g photoinitiator TEPO, 0.8g antioxidant 1076, add the above components in turn to the double planetary power mixer Inside, mix evenly, after vacuuming and degassing (vacuum degree -0.07MPa, 0.7h), let it stand naturally to room temperature, seal the package, and get it.

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Abstract

The invention relates to a liquid optical transparent adhesive with impact resistance and a preparation method thereof. The liquid state optical transparent adhesive comprises the following raw materials in percentage by weight: 15-45 percent of hydrogenated polybutadiene type polyurethane acrylate resin, 20-60 percent of liquid polybutadiene resin, 15-45 percent of long-chain alkane acrylic ester, 1-6 percent of light trigger and 0.1-1 percent of antioxidant. The refractive index of the liquid optical transparent adhesive is 1.50-1.52; and the liquid optical transparent adhesive has favorable impact resistance and internal friction tandelta of less than 0.6, is suitable for a laminating process of a capacitive touch screen and is especially suitable for occasions where special impact resistant demands are required.

Description

technical field [0001] The invention relates to a liquid optically transparent glue with impact resistance and a preparation method thereof, belonging to the field of photocurable materials. Background technique [0002] With the continuous upgrading of flat panel display technology, touch screen, as a new technology, is continuously applied to various products such as mobile phones and computers. Especially driven by the tide of mobile Internet, more and more flat panel display products adopt capacitive touch technology. Capacitive touch technology has advantages over traditional resistive touch technology in terms of multi-touch design, gesture recognition, response speed, sensitivity, durability, and optical characteristics. According to the current production process, capacitive touch screens need to use an adhesive material to assemble each layer of transparent materials during manufacture, so as to eliminate Newton's rings and rainbow phenomena, reduce light scatterin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J175/16C09J147/00
Inventor 潘光君王建斌陈田安
Owner YANTAI DARBOND TECH