Preparation method of epoxy resin cyanate ester resin composite material

A technology of cyanate resin and epoxy resin, which is applied in the field of preparation of epoxy resin cyanate resin composite materials with light aging resistance performance, can solve the problems of molecular chain breakage and crosslinking, malignant change of mechanical properties, and destruction of chemical bonds, etc., to achieve Improved brittleness, simple preparation process, and excellent comprehensive performance

Inactive Publication Date: 2018-05-01
WEIHAI GUANGWEI COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although ultraviolet light only accounts for about 5% of sunlight, its energy is very large, and its energy is enough to destroy the chemical bonds of the polymer, causing its molecular chains to break and crosslink, resulting in a malignant change in its mechanical properties, and at the same time, its color also changes.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Prepare according to the following formula:

[0019] 100 parts by mass of bisphenol F type epoxy resin;

[0020] 20 parts by mass of bisphenol A type cyanate resin;

[0021] Antioxidant 1010 0.3 parts by mass;

[0022] Antioxidant 168 0.3 parts by mass;

[0023] UV-9 0.5 parts by mass;

[0024] 6 parts by mass of polyaryletherketone;

[0025] KH560 0.5 parts by mass.

[0026] Stir 100 parts of bisphenol F-type epoxy resin and 6 parts of polyaryletherketone at 130°C. After melting and dispersing evenly, cool down to 110°C and add 0.3 parts of antioxidant 1010, 0.3 parts of antioxidant 168, 0.5 parts of UV-9, after melting and dispersing evenly, lower the temperature to 80°C, add 20 parts of bisphenol A cyanate resin and 0.5 parts of KH560, after the dispersion is uniform, pour the mixed resin directly into the glue of the coating machine In the tank, the film coating process is carried out, and then the compound process is carried out on the compound machine to com...

Embodiment 2

[0029] Prepare according to the following formula:

[0030] 120 parts by mass of bisphenol F type epoxy resin;

[0031] 25 parts by mass of bisphenol A type cyanate resin;

[0032] Antioxidant 1076 0.3 parts by mass;

[0033] Antioxidant 168 0.3 parts by mass;

[0034] UV-327 0.5 parts by mass;

[0035] 8 parts by mass of polyarylethersulfone;

[0036] KH550 0.5 parts by mass.

[0037] Stir 80 parts of bisphenol F-type epoxy resin and 8 parts of polyarylethersulfone at 150°C. After melting and dispersing evenly, cool down to 110°C, add 0.3 parts of antioxidant 1010, 0.3 parts of antioxidant 168, 0.5 parts of UV-327, after melting and dispersing evenly, lower the temperature to 80°C, add 25 parts of bisphenol A cyanate resin, 0.5 parts of KH550, after being uniformly dispersed, pour the mixed resin directly into the glue of the film coating machine In the tank, the film coating process is carried out, and then the compound process is carried out on the compound machine to...

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PUM

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Abstract

The invention relates to the field of a macromolecular material, in particular to a preparation method of an epoxy resin cyanate ester resin composite material. The preparation method comprises the following steps: stirring 80 to 150 parts by weight of epoxy resin and 1 to 30 parts by weight of a toughening agent at 50 to 200 DEG C, dissolving and dispersing uniformly, cooling to 70 to 150 DEG C,adding 0.1 to 10 parts by weight of an antioxidant and 0.1 to 20 parts by weight of an ultraviolet absorbent, dissolving and dispersing uniformly, cooling to 70 to 150 DEG C, adding 1 to 50 parts by weight of cyanate ester resin and 0.1 to 10 parts by weight of a coupling agent, dispersing uniformly to obtain a resin composition, performing coating process and fiber composite process on the resincomposition, and curing to obtain the epoxy resin cyanate ester resin composite material.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a preparation method of an epoxy resin cyanate resin composite material with anti-light aging performance. Background technique [0002] As we all know, epoxy resin has excellent properties such as bonding, corrosion resistance, and insulation, and is widely used in adhesives, coatings, electrical insulation materials, and composite materials. Due to the characteristics of high strength and low density, epoxy resin composite materials have gradually become one of the indispensable basic materials in the industrial field. However, epoxy composites have deficiencies in heat resistance, wear resistance, dimensional stability, brittleness, etc., which greatly restrict their application. Especially long-term exposure to the sun will accelerate the aging of the resin. [0003] Cyanate resin has good mechanical properties, dielectric properties, heat resistance, etc. It, together with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L79/04C08L71/10C08L77/10C08K13/04C08K7/06C08K7/14C08K7/10C08K5/132C08K5/3475C08K5/134C08K5/526C08J5/24
CPCC08J5/24C08J2363/00C08J2471/10C08J2477/10C08J2479/04C08L63/00C08L2201/08C08L2205/03C08L79/04C08L71/10C08L77/10C08K13/04C08K7/06C08K7/14C08K7/10C08K5/132C08K5/3475C08K5/1345C08K5/526
Inventor 王大伟曾秋云严红超
Owner WEIHAI GUANGWEI COMPOSITES
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