Preparation of multifunctional sealant for optical lamination

A multi-functional, sealant technology, used in adhesives, adhesive types, polyether adhesives, etc., can solve the problems of occupying area, uncured strength of dam glue, insufficient water-adhesive bonding strength, etc. The effect of improving tensile strength and appearance properties

Pending Publication Date: 2021-04-20
苏州添易朗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The water glue is in a liquid state and requires dam glue enclosure and height limit. The strength of the water glue is weak and needs to be strengthened with sealant. The optical fit is narrowed and the frame is narrow. There is not enough space to use the dam glue and sealant at the same time. The traditional dam glue does not cure or The strength is extremely low and occupies an area, resulting in insufficient bonding strength of water glue

Method used

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  • Preparation of multifunctional sealant for optical lamination
  • Preparation of multifunctional sealant for optical lamination
  • Preparation of multifunctional sealant for optical lamination

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1 The preparation of a multifunctional sealant for optical bonding, comprising the following steps:

[0026] Add 95 parts of alkoxy-terminated polyether, 5 parts of plasticizer and 1 part of modified white carbon black into the stirring tank, use an ultrasonic disperser to disperse, then heat, the temperature is 80-110 °C, and the dehydration time is 2.5-4h, after lowering the temperature to 35-60°C, add 1 part of filler, 2 parts of coloring agent and 0.01 part of catalyst, stir and mix for 0.5-1h, put the material into a high-density polyethylene plastic tube and store it for later use.

Embodiment 2

[0027] Embodiment 2 The preparation of a multifunctional sealant for optical bonding, comprising the following steps:

[0028] Add 80 parts of alkoxy-terminated polyether, 9 parts of plasticizer and 5 parts of modified white carbon black into the stirring tank, use an ultrasonic disperser to disperse, and then heat at a temperature of 80-110°C for dehydration The time is 2.5-4h, after lowering the temperature to 35-60°C, add 7 parts of filler, 9 parts of coloring agent and 2 parts of catalyst, stir and mix for 0.5-1h, put the material into a high-density polyethylene plastic tube and store it for later use .

Embodiment 3

[0029] Embodiment 3 The preparation of a multifunctional sealant for optical bonding, comprising the following steps:

[0030] Add 70 parts of alkoxy-terminated polyether, 12.5 parts of plasticizer and 10 parts of modified white carbon black into the stirring tank, use an ultrasonic disperser to disperse, then heat, the temperature is 80-110 °C, and the dehydration time is 2.5-4h, after lowering the temperature to 35-60°C, add 13 parts of filler, 16 parts of coloring agent and 3 parts of catalyst, stir and mix for 0.5-1h, put the material into a high-density polyethylene plastic tube and store it for later use.

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Abstract

The invention relates to the technical field of multifunctional sealants, in particular to preparation of a multifunctional sealant for optical bonding. The multifunctional sealant comprises alkoxy-terminated polyether, a plasticizer, a filler, modified white carbon black, a coloring agent and a catalyst, and in the preparation of the multifunctional sealant for optical lamination, alkoxy-terminated polyether adhesive which is high in thixotropy, low in hardness, adjustable in curing rate and high in strength is used as the multifunctional sealant for optical lamination box dam-sealing, and different performances of the sealant can be further improved; Addition of the colorant facilitates the color modulation of the sealant, effectively improves the tensile strength, elongation, shear strength, hardness and droop resistance of the sealant, improves the appearance performances, and allows fumed silica to have good reinforcing property, thixotropy and thickening property, so the fumed silica has good adhesion to the sealant along with increase of the use amount of the fumed silica, and the sealant has increased viscosity and excellent thixotropy.

Description

technical field [0001] The invention relates to the technical field of multifunctional sealants, in particular to the preparation of a multifunctional sealant for optical bonding. Background technique [0002] Water glue can be used in different fields according to different thicknesses, and its main uses are: electronic paper, transparent device bonding, projection screen assembly, aerospace or military optical device assembly, display assembly, lens assembly, resistive touch screen, capacitive touch screen , panel, ICON and plastic materials such as glass and polycarbonate; [0003] Sealant refers to a sealing material that deforms with the shape of the sealing surface, is not easy to flow, and has a certain degree of cohesion. It is an adhesive used to fill the configuration gap and play a sealing role. heat insulation, etc.; [0004] The water glue is in a liquid state and requires dam glue enclosure and height limit. The strength of the water glue is weak and needs to...

Claims

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Application Information

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IPC IPC(8): C09J171/00C09J11/06C09J11/04C09K3/10
Inventor 于育强王天福
Owner 苏州添易朗科技有限公司
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