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Bisphthalonitrile-amino phenoxy phthalonitrile copolymer and condensate, and glass fiber composite material and preparation method thereof

A technology of aminophenoxy phthalonitrile and diphthalonitrile, applied in the field of polymer materials, can solve the problems of non-curing, troublesome synthesis steps, slow curing reaction, etc., and achieves easy control, easy realization, The effect of excellent flame retardant properties

Inactive Publication Date: 2014-11-19
成都德美精英化工有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, bis-phthalonitrile also has disadvantages such as high processing temperature and slow curing reaction, which limit its application; Curing; bisphenol A phthalonitrile has a melting point of 197°C and hardly cures in the absence of a catalyst
Therefore, the application number is 2010102272271 "Bisphenol A-type bis-phthalonitrile resin containing aryl ether nitrile chain segment, cured product and preparation method thereof" has synthesized bis-phthalonitrile with lower processing temperature for its shortcomings Resin, but the synthesis steps are troublesome
There are also relevant documents to reduce the processing temperature of bisphthalonitrile by adding resins such as epoxy, but the compatibility of bisphthalonitrile and epoxy is poor, and the results show that the addition of epoxy damages the bisphthalonitrile Heat and Flame Retardant Properties of Phthalonitrile

Method used

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  • Bisphthalonitrile-amino phenoxy phthalonitrile copolymer and condensate, and glass fiber composite material and preparation method thereof
  • Bisphthalonitrile-amino phenoxy phthalonitrile copolymer and condensate, and glass fiber composite material and preparation method thereof
  • Bisphthalonitrile-amino phenoxy phthalonitrile copolymer and condensate, and glass fiber composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0035] Embodiment 1-5 Bisphenol A type bisphthalonitrile-aminophenoxyphthalonitrile copolymer and its preparation

[0036] Put bisphenol A type bisphthalonitrile in a beaker, stir and melt at 200°C-220°C, continue to stir for 5-10min, then slowly add 3-aminophenoxyphthalonitrile, then stir for 10 minutes -30min, a dark green molten liquid was obtained. After it was cooled to room temperature, it was ground into powder to obtain the powder of bisphenol A type bisphthalonitrile / 3-aminophenoxyphthalonitrile copolymer. The various performances of gained different proportioning 3-aminophenoxyphthalonitrile / bisphenol A type bisphthalonitrile copolymer powder are as shown in table 1:

[0037] Table 1 Properties of bisphenol A type bisphthalonitrile / 3-aminophenoxyphthalonitrile copolymer

[0038]

Embodiment 6-10

[0039] Example 6-10 Bisphenol A type bisphthalonitrile / 3-aminophenoxyphthalonitrile cured product and its preparation

[0040] Take the bisphenol A type bisphthalonitrile / 3-aminophenoxyphthalonitrile copolymer powder obtained in Examples 1-5, stir and fully melt at 150-200 ° C, and pour it after 5-10 minutes. Heat treatment molding to obtain bisphenol A type bisphthalonitrile / 3-aminophenoxyphthalonitrile cured product; wherein, the heat treatment temperature is 200°C / 2h, 240°C / 2h, 280°C / 4h, 320°C / 4h; the flame retardancy and heat resistance of the obtained cured product are shown in Table 2:

[0041] Table 2 Properties of bisphenol A bisphthalonitrile / 3-aminophenoxyphthalonitrile cured product

[0042]

Embodiment 11-17

[0043] Example 11-17 Bisphenol A type bisphthalonitrile / 3-aminophenoxyphthalonitrile glass fiber composite material and its preparation

[0044] In order to prepare bisphenol A bisphthalonitrile / 3-aminophenoxyphthalonitrile glass fiber composites with excellent comprehensive properties, we use three processes: (1) dry method; (2) wet method (3) dry-wet mixing method, the copolymer obtained in Example 3 was selected to add glass fiber to prepare a composite sheet (the weight ratio of bisphenol A type diphthalonitrile and 3-aminophenoxyphthalonitrile The ratio is 50:50), of which, the mass of glass fiber accounts for 62.5 parts, and the mass of bisphenol A type bisphthalonitrile / 3-aminophenoxyphthalonitrile copolymer powder accounts for 37.5 parts. The three processes The weight ratio of bisphenol A type diphthalonitrile and 3-aminophenoxyphthalonitrile is 50:50; specifically as follows:

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Abstract

The invention belongs to the technical field of high molecular materials, in particular relates to a bisphthalonitrile-amino phenoxy phthalonitrile copolymer and condensate as well as a glass fiber composite material and a preparation method thereof. The bisphthalonitrile-amino phenoxy phthalonitrile copolymer, provided by the invention, is obtained by fusing and copolymerizing bisphthalonitrile and amino phenoxy phthalonitrile at the temperature of 200-220 DEG C. The method adopts the amino phenoxy phthalonitrile with low cost to obtain the bisphthalonitrile-amino phenoxy phthalonitrile copolymer and the condensate; and the obtained condensate has excellent flame retardance (oxygen index is more than 36 percent); the bending strength achieves 88-130 MPa; the original decomposition temperature is above 478 DEG C; and the carbon residue rate at the temperature of 800 DEG C is more than 65 percent.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a bisphthalonitrile-aminophenoxyphthalonitrile copolymer, a cured product, a glass fiber composite material and a preparation method thereof. Background technique [0002] Biphthalonitrile resin was first synthesized by the Keller research group of the U.S. Naval Laboratory. It is a high-performance high-temperature resistant thermosetting resin with excellent thermal stability and thermal oxidation stability, good mechanical properties and High moisture resistance, etc., has functional characteristics such as corrosion resistance, radiation resistance, and high strength; it has been widely used in aerospace, ships, machinery, electronics and other fields, and can be used to prepare functional polymer materials, paints, etc. / Coatings, resin-based composite materials, high temperature resistant adhesives, electronic conductors, semiconductors, organic magne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/06C08L79/04C08K7/14B29C71/02
Inventor 刘钢陈智然吴斌杨旭林罗一男徐明珍金睿刘孝波
Owner 成都德美精英化工有限公司