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High-crystallization-rate PBT (polybutylece terephthalate) material with epoxy resin adhesion and preparation method thereof

An epoxy resin and adhesive technology, which is applied in the field of high crystallization rate PBT materials and its preparation, can solve the problems of reduced packaging efficiency, difficult to control the curing process of epoxy resin viscosity changes, and achieves simple molding and improved wear resistance. , the effect of accelerating the crystallization rate

Inactive Publication Date: 2016-11-16
ANHUI KING AUTO ELECTRONICS TECH CO LTD
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  • 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 anti-aging performance, introduces reactive functional groups that have the ability to react with epoxy resin, and improves the interfacial adhesion with epoxy resin, but when using epoxy resin Rapid viscosity changes make it difficult to control the curing process, and rapid curing results in reduced encapsulation efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 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, 3 kg of glass fiber, 5 kg of nano-talc powder, and nano-titanium nitride 3 kg, 2 kg of acrylate, 2452 kg of antioxidant.

[0027] Specific steps are as follows:

[0028] (1), preparation of microcapsule curing agent:

[0029] 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;

[0030] 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;

[0031] 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 ...

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Abstract

The present invention discloses a high-crystallization-rate PBT (polybutylece terephthalate) material with epoxy resin adhesion, made from the following materials according to parts by weight: 60-80 parts of PBT, 15-20 parts of cardanol amine, 15-20 parts of polyvinyl alcohol microspheres, 5-8 parts of sodium dodecyl sulfate, 5-10 parts of gelatin, 2-4 parts of fiberglass, 3-6 parts of nano talc, 2-4 parts of nano titanium nitride, 1-3 parts of acrylate and 1-3 parts of antioxidant 245. The coated curing agent is introduced to increase the content of functional groups in the material that are reactable with epoxy resin, the microcapsule curing agent can break microcapsules under certain conditions to release slowly so as to finish curing, the curing process of the material with epoxy resin potting is accordingly controlled, and interfacial adhesion between the material and the epoxy resin is improved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high crystallization rate 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L29/04C08L89/00C08K13/06C08K9/10C08K7/14C08K3/34C08K3/28C08L63/00
CPCC08K2201/005C08K2201/011C08L63/00C08L67/02C08L2205/03C08L2205/18C08L2205/24C08L29/04C08L89/00C08K13/06C08K9/10C08K7/14C08K3/34C08K3/28
Inventor 王进
Owner ANHUI KING AUTO ELECTRONICS TECH CO LTD
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