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A kind of epoxy resin containing furan self-repairing group and preparation method thereof

An epoxy resin, self-repairing technology, applied in the direction of organic chemistry, etc., to achieve the effect of inhibiting chain segment movement and good heat resistance

Active Publication Date: 2017-02-22
ANHUI SHANFU NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unlike thermoplastic materials, there is no application-stage repair method for this type of damage in epoxy-based composites

Method used

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  • A kind of epoxy resin containing furan self-repairing group and preparation method thereof
  • A kind of epoxy resin containing furan self-repairing group and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Add 8 g of 1,5-naphthalenediol, 46.2 g of epichlorohydrin and 23.1 g of isopropanol in a 125 mL four-neck flask equipped with mechanical stirring, a thermometer, a reflux condenser, a numerically controlled sampling pump, and a nitrogen introduction device, Slowly raise the temperature of the oil bath to 60°C. After the 1,5-naphthalenediol is completely dissolved, slowly add 16 g of NaOH solution (30wt%) with a numerical control injection pump. The injection is completed within 2 hours, and the reaction temperature is controlled at Continue to react at 80°C for 4 hours. After the reaction is completed, cool and filter to remove the generated sodium chloride, distill under reduced pressure to remove the solvent, dissolve it in toluene again, wash with deionized water for 3 times, and recrystallize with dichloromethane after removing the solvent to obtain Pale yellow solid product. . Dissolve 10 g of the above-mentioned light yellow solid product in 60 g of xylene and pl...

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Abstract

The invention discloses an epoxy resin containing a furan self-repairing group. The epoxy resin is prepared from furfuryl amine, 1,5-naphthalenediol and epoxy chloropropane serving as major raw materials; the molecular structure of the epoxy resin contains naphthyl, an epoxy group and a furan group; and an appropriate amount of an acid imide component is added into a curing agent component, so that the micro-crack self-repairing function of the epoxy resin can be realized. An obtained cured substance has high heat resistance, and can be taken as a substrate of a high-performance composite material.

Description

technical field [0001] The invention belongs to the technical field of epoxy resins, in particular to an epoxy resin containing furan self-repairing groups. At the same time, the invention also relates to a preparation method of the epoxy resin. Background technique [0002] As an important class of thermosetting resins, epoxy resin has excellent adhesive properties, wear resistance, mechanical properties, electrical insulation properties, chemical stability, high and low temperature resistance, low shrinkage, easy processing and low cost, etc. It has been widely used in advanced composite materials and other fields. [0003] Epoxy resin is the most commonly used matrix resin for high-performance composite materials. Due to the thermosetting characteristics of epoxy resin, it becomes an insoluble and infusible cured product after processing, and the secondary processing technology is very limited, especially when used as a composite material. , under the condition of low-e...

Claims

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Application Information

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IPC IPC(8): C07D407/14
CPCC07D407/14
Inventor 任华包秀群叶琳张淑贞
Owner ANHUI SHANFU NEW MATERIAL TECH
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