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High-temperature-resistant adhesive for new energy automobile coil

A new energy vehicle, high temperature resistance technology, applied in the direction of adhesives, polymer adhesive additives, polyether adhesives, etc., can solve the problem of not giving high temperature resistance indicators, improve heat resistance, provide flexibility properties, and the effect of improving internal heat and oil resistance

Active Publication Date: 2021-03-12
POLYONTECH ADVANCED MATERIAL SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It only gives lap shear strength, impact peel strength and tensile strength indicators, but it does not give high temperature resistance indicators

Method used

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  • High-temperature-resistant adhesive for new energy automobile coil
  • High-temperature-resistant adhesive for new energy automobile coil
  • High-temperature-resistant adhesive for new energy automobile coil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of polyamide modified epoxy:

[0031] In a 250 ml clean glass bottle, add 20 grams of polyhexamethylene adipamide with a carboxyl group at the end and a molecular weight of 1500, and then 100 grams of bisphenol A liquid epoxy with an epoxy equivalent of 190 and 0.24 g of antioxidant 1101, mixed evenly, after nitrogen purging, began to heat up to 85 ° C, reacted for 4 hours, then cooled to , transferred to a clean fluorinated bottle, and viscous component A was obtained.

[0032] Component B is: amino acid-terminated polytetramethylene ether glycol (R 1 =H,R 2 =H, n=8).

[0033] Mix according to the ratio of component A and component B at a ratio of 1:1, and then degass under reduced pressure. It can be used for 3-5 hours at room temperature. When using, heat the mixed glue to 50°C Glue is dispensed by a dispenser.

Embodiment 2

[0035]Preparation of polyamide modified epoxy:

[0036] In a clean glass bottle of 250 milliliters, add 50 grams of polyhexamethylene adipate amide whose end group is an amine group and whose average molecular weight is 1500, and then bisphenol A liquid epoxy 120 with an epoxy equivalent of 190 gram and 0.34 gram of antioxidant 1101, mixed evenly, after nitrogen purging, began to heat up to 115 ° C, reacted for 6-8 hours, then cooled to , transferred to a clean fluorinated bottle, and viscous component A was obtained.

[0037] Component B is: amino acid-terminated polytetramethylene ether glycol (R 1 =CH 3 , R 2 =CH 3 , n=15)

[0038] Mix according to the ratio of component A and component B at a ratio of 1:0.5, and then degass under reduced pressure. It can be used for 8-12 hours at room temperature. When using, heat the mixed glue to 50°C Glue is dispensed by a dispenser.

Embodiment 3

[0040] Preparation of polyamide modified epoxy:

[0041] In a clean glass bottle of 250 milliliters, add 50 grams of polycaprolactam amide with a weight average molecular weight of 800, then 100 grams of bisphenol A liquid epoxy and 0.3 gram of antioxidant 1101 with an epoxy equivalent of 175, Mix evenly, after purging with nitrogen, start heating to 130°C, react for 5 hours, then cool to 100°C, transfer to a clean fluorinated bottle to obtain viscous Component A.

[0042] Component B is: amino acid-terminated polytetramethylene ether glycol (R 1 =CH 3 , R 2 =CH 3 , n=15)

[0043] Mix according to the ratio of component A and component B at a ratio of 1:0.5, and then degass under reduced pressure. It can be used for 8-12 hours at room temperature. When using, heat the mixed glue to 50°C Glue is dispensed by a dispenser.

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Abstract

The invention discloses a high-temperature-resistant adhesive for a new energy automobile coil, and the adhesive is characterized in that the adhesive contains a polyamide modified epoxy resin component A and an amino acid-terminated polytetramethylene ether glycol ester component B; the polyamide modified epoxy resin component A is prepared by mixing and modifying linear liquid bisphenol A epoxyresin by adopting polyamide with the molecular weight of 500-3,000, and the molar ratio of the polyamide to the epoxy resin is that polyamide / epoxy is equal to 1 / 2-1 / 10; and the amino acid-terminatedpolytetramethylene ether glycol ester component B is a curing agent as shown in a formula 1. By using the polyamide modified epoxy resin component A, the internal heat type, oil resistance and oil seepage resistance can be effectively improved; the terminal group prepared from the adjustable amino acid and tetramethylene ether glycol is cured, so that the flexibility, heat resistance and oxidativedegradation resistance effects can be effectively provided.

Description

technical field [0001] The invention relates to the field of adhesive preparation, in particular to a high-temperature-resistant adhesive for new energy automobile coils that can be used for a long time at 80-150°C. Background technique [0002] New energy vehicles realize energy storage and driving through charging and discharging of batteries to achieve the purpose of driving, which makes new energy vehicles contain more lines and coils. Due to the relatively large volume and weight of the car, and the climate change and the use of the environment have many samples, it is required that the adhesive used to encapsulate the coil can have an excellent bonding effect, and at the same time have relatively good heat resistance and flexibility. Resistant to severe cold weather in winter and high temperature weather in summer. Compared with traditional cars, new energy vehicles have higher safety requirements for electrical equipment, and need to be able to protect the circuit mo...

Claims

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Application Information

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IPC IPC(8): C09J187/00C09J171/02C09J11/08
CPCC09J187/005C09J171/02C09J11/08C08L2201/08C08L71/02C08L87/005
Inventor 王正威张廷珂
Owner POLYONTECH ADVANCED MATERIAL SHANGHAI CO LTD