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Transparent waterproof encapsulating material

A potting material and transparent technology, applied in the direction of adhesive additives, non-polymer organic compound adhesives, non-polymer adhesive additives, etc., can solve problems such as poor solvent resistance, improve adhesion and resistance Effects of high temperature stability, improved toughness and heat and cold resistance, and reduced shrinkage and coefficient of thermal expansion

Inactive Publication Date: 2016-09-28
苏州市奎克力电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silicone potting materials also have certain defects, such as poor mechanical properties, wear resistance, and solvent resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A transparent waterproof potting material, comprising the following materials in parts by weight: 20 parts of polyurethane prepolymer (the weight percentage of unreacted NCO is 1.5%); 5 parts of α, ω-dihydroxy polydimethylsiloxane; 10 parts of alkoxysilane; 3 parts of prepolymer containing acrylate-based polysiloxane; 1 part of triethylenediamine; 5 parts of plasticizer; 1 part of structural aid; 2 parts of silane coupling agent.

Embodiment 2

[0029] A transparent waterproof potting material, comprising the following materials in parts by weight: 30 parts of polyurethane prepolymer (the weight percentage of unreacted NCO is 10%); 18 parts of α, ω-dihydroxy polydimethylsiloxane; 25 parts of alkoxysilane; 15 parts of prepolymer containing acrylate-based polysiloxane; 3 parts of triethylenediamine; 14 parts of plasticizer; 5 parts of structural aid; 5 parts of silane coupling agent.

Embodiment 3

[0031] A transparent waterproof potting material, comprising the following materials in parts by weight: 25 parts of polyurethane prepolymer (the weight percentage of unreacted NCO is 20%); 15 parts of α, ω-dihydroxy polydimethylsiloxane; 20 parts of alkoxysilane; 12 parts of prepolymer containing acrylate-based polysiloxane; 2 parts of triethylenediamine; 10 parts of plasticizer; 4 parts of structural aid; 3 parts of silane coupling agent.

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PUM

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Abstract

This case discloses a transparent waterproof potting material, including the following materials: polyurethane prepolymer; α, ω-dihydroxypolydimethylsiloxane; alkoxysilane; Polymer; Triethylenediamine; Plasticizer; Structural aid; Silane coupling agent. The invention provides a transparent waterproof potting material. Polyurethane and acrylic resin are used to modify organic silicon to obtain a transparent waterproof potting material with strong adhesion, excellent electrical insulation performance, ultraviolet resistance and high corrosion resistance.

Description

technical field [0001] The invention relates to a potting material, in particular to a transparent waterproof potting material. Background technique [0002] Potting material, also known as electronic glue, is a broad term. Used for bonding, sealing, potting and coating protection of electronic components. The potting glue is liquid before it is cured and has fluidity. The viscosity of the glue varies according to the material, performance and production process of the product. Only when the potting glue is completely cured can its use value be realized. After curing, it can play the role of waterproof, moisture-proof, dust-proof, insulation, heat conduction, confidentiality, corrosion resistance, temperature resistance, and shock resistance. With the expansion of the application range, higher requirements are put forward for the comprehensive performance of potting materials. [0003] At present, the most widely used potting materials are various synthetic polymers, amon...

Claims

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Application Information

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IPC IPC(8): C09J175/04C09J183/06C09J11/06
CPCC09J4/06C09J11/06
Inventor 蔡小连
Owner 苏州市奎克力电子科技有限公司
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