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Technological method for preparing optical transparent UV adhesive

An optically transparent and process technology, applied in the direction of adhesives, non-polymer adhesive additives, non-polymer organic compound adhesives, etc. problems, to achieve the effect of improving safety and practicability, improving adhesion, and preventing the decline of adhesion

Inactive Publication Date: 2021-08-31
苏州赛杜胜新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the existing UV adhesive production technology, the produced UV adhesives generally have yellowing surface and poor thermal stability. After the optical components are operated for a long time, it is easy to cause the UV adhesive to be heated, resulting in a decrease in adhesion

Method used

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  • Technological method for preparing optical transparent UV adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, a kind of processing method of optically transparent UV adhesive preparation, comprises the following steps:

[0019] S1: Weigh 100 parts of alicyclic epoxy resin and 10 parts of diisocyanate, put them into a mixing tank and stir evenly to obtain a prepolymer;

[0020] S2: Weigh a certain quality of organic antimony and calcium stearate, mix them evenly with a mixer, put them into a screw extruder to extrude and granulate, ventilate and cool for 1-2 hours under the condition of avoiding light, and obtain the stabilized additive granules. The mass ratio of organic antimony and calcium stearate in the S2 is 3:2, and the heating temperature of the screw extruder is 120°C;

[0021] S3: Weigh 5 parts of coupling agent, 10 parts of photoinitiator, 5 parts of thixotropic agent, 5 parts of stabilizing agent particles and 10 parts of reactive diluent, put them into the prepolymer, stir them evenly in the mixing tank, Heating to 80°C to obtain a molten mixture, the...

Embodiment 2

[0024] Embodiment 2, a kind of process method of optically transparent UV adhesive preparation, comprises the following steps:

[0025] S1: Weigh 100 parts of alicyclic epoxy resin and 15 parts of diisocyanate, put them into a mixing tank and stir evenly to obtain a prepolymer;

[0026] S2: Weigh a certain quality of organic antimony and calcium stearate, mix them evenly with a mixer, put them into a screw extruder to extrude and granulate, ventilate and cool for 1-2 hours under the condition of avoiding light, and obtain the stabilized additive granules. The mass ratio of organic antimony and calcium stearate in the S2 is 3:2, and the heating temperature of the screw extruder is 120°C;

[0027] S3: Weigh 5 parts of coupling agent, 10 parts of photoinitiator, 5 parts of thixotropic agent, 5 parts of stabilizing agent particles and 10 parts of reactive diluent, put them into the prepolymer, stir them evenly in the mixing tank, Heating to 80°C to obtain a molten mixture, the co...

Embodiment 3

[0030] Embodiment 3, a kind of process method of optically transparent UV adhesive preparation, comprises the following steps:

[0031] S1: Weigh 100 parts of alicyclic epoxy resin and 20 parts of diisocyanate, put them into a mixing tank and stir evenly to obtain a prepolymer;

[0032] S2: Weigh a certain quality of organic antimony and calcium stearate, mix them evenly with a mixer, put them into a screw extruder to extrude and granulate, ventilate and cool for 1-2 hours under the condition of avoiding light, and obtain the stabilized additive granules. The mass ratio of organic antimony and calcium stearate in the S2 is 3:2, and the heating temperature of the screw extruder is 120°C;

[0033] S3: Weigh 5 parts of coupling agent, 10 parts of photoinitiator, 5 parts of thixotropic agent, 5 parts of stabilizing agent particles and 10 parts of reactive diluent, put them into the prepolymer, stir them evenly in the mixing tank, Heating to 80°C to obtain a molten mixture, the co...

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Abstract

The invention discloses a technological method for preparing an optical transparent UV adhesive, wherein the technological method comprises the following steps: weighing 100 parts of alicyclic epoxy resin and 10-25 parts of diisocyanate, putting into a mixing tank, uniformly stirring to obtain a prepolymer, weighing a certain mass of organic antimony and calcium stearate, uniformly mixing by a stirrer, putting into a screw extruder, extruding and granulating, and ventilating and cooling for 1-2 hours under a dark condition to obtain stable additive particles; and weighing 5 parts of a coupling agent, 10 parts of a photoinitiator, 5 parts of a thixotropic agent, 5 parts of stable additive particles and 10 parts of a reactive diluent, putting into the prepolymer, uniformly stirring in the mixing tank, and heating to 80 DEG C to obtain a mixture in a molten state. Two silane coupling agents are mixed to serve as the coupling agent, so the adhesive force of a UV adhesive finished product can be improved; organic antimony and calcium stearate serve as stabilizers, so stability and heat resistance can be improved, adhesive force reduction caused by heating is prevented, and safety and practicability are improved.

Description

technical field [0001] The invention relates to the technical field of UV adhesives, in particular to a process for preparing optically transparent UV adhesives. Background technique [0002] Adhesive is a substance with good adhesive properties. Through adhesion and cohesion, the surface is bonded to connect objects. UV adhesives are made by adding photoinitiators (or photosensitizers) to specially formulated resins and absorbing high-strength ultraviolet (UV) light curing equipment. After ultraviolet light, active free radicals or ionic radicals are generated, thereby initiating polymerization, crosslinking and grafting reactions, so that resins (UV coatings, inks, adhesives, etc.) are converted from liquid to solid within a few seconds (not equal), This change process is called "UV curing". [0003] In the field of optics, when using UV adhesives to fix optical elements, the UV adhesives are required to be transparent, the UV adhesives must not have any bubbles and yell...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/06C09J4/02C09J11/06
CPCC09J4/06C09J11/06
Inventor 王艳
Owner 苏州赛杜胜新材料科技有限公司