Waterproof buffer glue, and preparation method and application method thereof

A glue and polymer technology, applied in adhesives, polyurea/polyurethane adhesives, film/sheet adhesives, etc., can solve the problems of high prices and achieve low cost, cost reduction, and low density.

Inactive Publication Date: 2018-07-10
DONGGUAN AOZON ELECTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the foam tapes at the present stage use the performance of azo chemical foaming agents to decompose and foam under high temperature conditions, and are made of closed-cell structures in PE, EVA, and PU materials, so they have waterproof and cushioning properties, but are limited The limit of the precision of the processing technology, the thinnest foam tape at this stage can only be 100-150 μm, and the price is expensive, such as Japan's Sekisui 5220, Nitto's 571 series ultra-thin PE foam tape, and the market The latest ultra-thin PU foam tape made of polyurethane material is not below 100μm

Method used

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  • Waterproof buffer glue, and preparation method and application method thereof
  • Waterproof buffer glue, and preparation method and application method thereof
  • Waterproof buffer glue, and preparation method and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A waterproof buffer glue, comprising the following raw materials in parts by weight:

[0040]

[0041]

[0042] Wherein, the polymer hollow microspheres are foamed and expanded microspheres with a core-shell structure.

[0043] The styrene-based thermoplastic elastomer is a styrene-butadiene-styrene block copolymer.

[0044] The tackifying resin is rosin resin.

[0045] The surface modifier is a silane coupling agent; the silane coupling agent is γ-aminopropyltriethoxysilane.

[0046] The filler is compounded by glass fiber powder and inorganic cobalt blue pigment according to the mass ratio of 2:1.

[0047] The solvent is formed by compounding toluene and butanone according to the mass ratio of 2:1.5.

[0048] The preparation method of described waterproof buffer glue, comprises the following steps:

[0049] (1) Add polymer hollow microspheres, inorganic fillers, and surface modifiers to a part of the solvent in sequence, stir and disperse evenly to obtain a ...

Embodiment 2

[0056] A waterproof buffer glue, comprising the following raw materials in parts by weight:

[0057]

[0058] Wherein, the polymer hollow microspheres are foamed and expanded microspheres with a core-shell structure.

[0059] The styrene-based thermoplastic elastomer is a styrene-ethylene-butylene-styrene block copolymer.

[0060] The tackifying resin is terpene resin.

[0061] The surface modifier is a silane coupling agent; the silane coupling agent is γ-(2,3-glycidoxy)propyltrimethoxysilane.

[0062] The filler is an inorganic filler, and the inorganic filler is composed of quartz sand and graphite according to a mass ratio of 3:2.

[0063] The solvent is compounded by xylene and butanone according to the mass ratio of 25:18.

[0064] The preparation method of described waterproof buffer glue, comprises the following steps:

[0065] (1) Add polymer hollow microspheres, inorganic fillers, and surface modifiers to a part of the solvent in sequence, stir and disperse ev...

Embodiment 3

[0072] A waterproof buffer glue, comprising the following raw materials in parts by weight:

[0073]

[0074]

[0075] Wherein, the polymer hollow microspheres are foamed and expanded microspheres with a core-shell structure.

[0076] The styrene-based thermoplastic elastomer is a styrene-ethylene-butylene-styrene block copolymer.

[0077] The tackifying resin is C5 petroleum resin.

[0078] The surface modifier is a silane coupling agent; the silane coupling agent is γ-methacryloxypropyltrimethoxysilane.

[0079] The filler is an inorganic filler, and the inorganic filler is compounded by fumed silica and inorganic olive green pigment according to a mass ratio of 2:1.

[0080] The solvent is prepared by compounding ethyl ester and toluene according to the mass ratio of 12:35.

[0081] The preparation method of described waterproof buffer glue, comprises the following steps:

[0082] (1) Add polymer hollow microspheres, inorganic fillers, and surface modifiers to a p...

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Abstract

The invention relates to the technical field of adhesives, concretely relates to a waterproof buffer glue, and a preparation method and an application method thereof. The waterproof buffer glue comprises, by weight, an ethylene-vinyl acetate copolymer, thermoplastic polyurethane, a styrene thermoplastic elastomer, polymeric hollow microspheres, tackifying resin, a surface modifier, a filler and asolvent, wherein the polymeric hollow microsphere are foamed expanded microspheres having a core-shell structure. The waterproof buffer glue is prepared by adding the foamed and expanded microspheresinto raw material without an azo chemical foaming agent, air is evenly distributed in the waterproof buffer glue, and the waterproof buffer glue is used for producing waterproof buffer glue tapes having various thicknesses, especially ultrathin waterproof buffer adhesive tapes with a thickness of 100 [mu]m or less. The application method has the advantages of simple coating process and no harsh production conditions or devices, and the waterproof buffer glue is especially suitable for mass production, and has good economic benefits.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a waterproof buffer glue, a preparation method and an application method thereof. Background technique [0002] In terms of cushioning and shock absorption of electronic products, especially the shock absorption at the bottom of electronic display screens and mobile phone screens, ultra-thin cushioning and shock absorption materials with high foaming ratio, high softness and elasticity, and excellent cushioning are required to eliminate the gap between touch modules. The Newton rings produced by the difference between the steps also play the role of waterproofing and sealing. Due to people's continuous pursuit of ultra-thin mobile phone and flexible display device technology, the thickness of the waterproof buffer tape is currently required to be thinner. [0003] Most of the foam tapes at the present stage use the performance of azo chemical foaming agents to decompose and fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/08C09J175/04C09J153/02C09J11/04C09J11/08B05D7/24C09J7/30
CPCB05D7/24C08K2003/265C08L2205/035C08L2205/20C08L2207/53C09J11/04C09J11/08C09J123/0853C08L75/04C08L53/02C08L53/025C08L93/04C08L45/00C08L57/02C08K13/06C08K9/06C08K7/14C08K3/36C08K3/04C08K3/26C08K3/346
Inventor 薛萌王宜金覃飞飞陆金亮肖耀武郭培钧
Owner DONGGUAN AOZON ELECTRONICS MATERIAL
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