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High-dielectric PBT (polybutylene terephthalate) material with epoxy resin adhesion and preparation method of material

A technology of epoxy resin and adhesion, which is applied in the field of high dielectric PBT materials and its preparation, can solve the problems of reduced packaging efficiency, difficulty in controlling the curing process of epoxy resin viscosity changes, etc., to reduce the dosage and improve the dielectric effect , the effect of reducing losses

Inactive Publication Date: 2016-11-16
ANHUI KING AUTO ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Chinese patent CN 104610711 B discloses a PBT material with good epoxy resin adhesion and its preparation method. The invention uses antioxidant 24-44, antioxidant 168, antioxidant 1010 and carbon free scavenger HP136 The compounding, through the synergistic effect of each component, makes the material have excellent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weighing: 70 kg of PBT, 18 kg of cardanolamine, 18 kg of polyvinyl alcohol microspheres, 6 kg of sodium dodecyl sulfonate, 6 kg of gelatin, 5 kg of nano metal powder, 4 kg of carbon nanotubes, silane coupling 2 kg of anti-oxidant and 2 kg of antioxidant 1076.

[0026] Specific steps are as follows:

[0027] (1), preparation of microcapsule curing agent:

[0028] ①. Under stirring conditions, add 0.5wt% gelatin aqueous solution and 0.5wt% sodium dodecylsulfonate aqueous solution, and disperse for 40 minutes under mechanical stirring at 800 rpm to obtain an aqueous phase;

[0029] 2. In the dichloromethane solvent, add cardanolamine and polyvinyl alcohol microspheres, and disperse evenly in an ultrasonic instrument to obtain an oil phase, and gradually add the water phase prepared in step 1 into the oil phase;

[0030] ③. Stir and emulsify the mixed solution for 60 minutes, raise the reaction temperature to 32°C and stir for 4 hours, then raise the temperature to 43°C a...

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Abstract

The invention discloses a high-dielectric PBT (polybutylene terephthalate) material with epoxy resin adhesion. The high-dielectric PBT material is prepared from the following raw materials in parts by weight, 60-80 parts of PBT, 15-20 parts of cardanol amine, 15-20 parts of polyvinyl alcohol micro-spheres, 5-8 parts of sodium dodecyl sulfate, 5-10 parts of gelatin, 4-6 parts of nano-metal powder, 3-6 parts of carbon nano-tubes, 1-3 parts of silane coupling agents and 1-3 parts of antioxidants 1076. Group contents having reaction capacity with epoxy resin in clad curing agent improvement materials are led, microcapsule curing agents can break away from microcapsules and can be slowly released under a certain condition to complete curing, so that the curing process of the material and epoxy resin potting adhesives is controlled, and interface adhesion between the material and epoxy resin is improved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-dielectric PBT material with epoxy resin adhesion and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (English name Polybutylene Terephthalate, referred to as PBT) is milky white [0003] Color Translucent to opaque, crystalline thermoplastic polyester. It has excellent electrical properties, high heat resistance, toughness, fatigue resistance, self-lubrication, low coefficient of friction, weather resistance, low water absorption, and maintains various physical properties (including electrical properties) in a humid environment. Good, so it is widely used as engineering plastics in automobiles, electronic and electrical components. [0004] The engine ignition coil is the main component of the engine ignition system. Its function is to increase the low voltage of the car battery to a high voltage of 20kv to 40kv that can ...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L29/04C08L89/00C08K13/06C08K9/10C08K7/00C08K3/04C08K5/42C08K3/08
CPCC08K2201/005C08K2201/011C08L67/02C08L2205/03C08L29/04C08L89/00C08K13/06C08K9/10C08K7/00C08K3/04C08K5/42C08K3/08
Inventor 王进
Owner ANHUI KING AUTO ELECTRONICS TECH CO LTD