Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of low temperature curable halogen-free flame-retardant epoxy resin composition and prepreg thereof

A technology of epoxy resin and composition, which is applied in the prepreg field of low-temperature curing halogen-free flame-retardant epoxy resin composition, which can solve the problems of high temperature resistance of glass fiber reinforced plastic molds, high cost control pressure, and low oven temperature. Good wetting effect, high glass transition temperature, good flame retardant effect

Pending Publication Date: 2019-09-27
浙江百合航太复合材料有限公司
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aerospace interiors and structural parts, but are currently less used in the rail transit industry. The main reason is that the rail transit industry is under great pressure on cost control. Ordinary medium temperature curing epoxy resin prepregs need to enter the rail transit industry not only The problem of the cost of the air-made material itself also needs to solve the problems of the low temperature of the oven in the traditional FRP production workshop and the low temperature resistance of the FRP mold.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of low temperature curable halogen-free flame-retardant epoxy resin composition and prepreg thereof
  • Preparation method of low temperature curable halogen-free flame-retardant epoxy resin composition and prepreg thereof
  • Preparation method of low temperature curable halogen-free flame-retardant epoxy resin composition and prepreg thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1: Weigh in parts by weight,

[0033] EPIKOTE 828 bisphenol A epoxy resin: 100 parts

[0034] Ajinomoto PN-23J: 2 servings

[0035] Ajinomoto MY-25: 2 servings

[0036] EXOLIT AP462 ammonium polyphosphate: 20 parts

[0037] FCC-MC03 Melamine Cyanurate: 10 parts

[0038] Aluminum hydroxide: 10 parts

[0039] Acetone thinner: 30 parts

[0040] Fiber: Twill weave glass fiber fabric, surface density: 360g / m 2 , Weave: 2*2 twill

[0041] The mass percentage of the resin component in the prepreg: 38±3%

[0042] The preparation method of the liquid epoxy resin composition is as follows. EPIKOTE 828 bisphenol A epoxy resin and acetone are mixed and dissolved completely in the above proportion at room temperature, and Ajinomoto PN-23J curing agent, Ajinomoto MY is added under stirring conditions. -25 curing agent, stir for 10-15 minutes, add EXOLIT AP462 ammonium polyphosphate, FCC-MC03 melamine cyanurate, and aluminum hydroxide under stirring conditions for 20-30 minutes to finally o...

Embodiment 2

[0051] Example 2: Weigh in parts by weight,

[0052] EPIKOTE 828 bisphenol A epoxy resin: 80 parts

[0053] NPES-901 medium molecular weight bisphenol A epoxy resin: 20 parts

[0054] Ajinomoto PN-31J: 2 servings

[0055] Ajinomoto MY-24: 3 servings

[0056] EXOLIT AP462 ammonium polyphosphate: 20 parts

[0057] FCC-MC03 Melamine Cyanurate: 15 parts

[0058] Magnesium hydroxide: 5 parts

[0059] Acetone thinner: 30 parts

[0060] Fiber: Twill weave glass fiber fabric, surface density: 360g / m 2 ,Weave: 2*2 twill

[0061] The mass percentage of the resin component in the prepreg: 38±3%

[0062] The preparation method of the liquid epoxy resin composition is as follows. EPIKOTE 828 bisphenol A epoxy resin, NPES-901 medium molecular weight bisphenol A epoxy resin, and acetone are mixed and dissolved completely in the above ratio at room temperature, and the flavor is added under stirring. Ajinomoto PN-31J curing agent, Ajinomoto MY-24 curing agent, stir for 10-15 minutes, add EXOLIT AP462 ammoni...

Embodiment 3

[0071] Example 3: EPIKOTE 828 bisphenol A epoxy resin: 95 parts

[0072] NPES-907 high molecular weight bisphenol A epoxy resin: 5 parts

[0073] PN-31J: 1 copy

[0074] MY-H: 5 copies

[0075] EXOLIT AP462 ammonium polyphosphate: 15 parts

[0076] FCC-MC03 Melamine Cyanurate: 20 parts

[0077] Alumina: 5 parts

[0078] Acetone thinner: 30 parts

[0079] Fiber: Twill weave glass fiber fabric, surface density: 360g / m 2 ,Weave: 2*2 twill

[0080] The mass percentage of the resin component in the prepreg: 38±3%

[0081] The preparation method of the liquid epoxy resin composition is as follows. EPIKOTE 828 bisphenol A epoxy resin, NPES-907 high molecular weight bisphenol A epoxy resin, and acetone are mixed uniformly in the above ratio at room temperature, and the flavor is added under stirring conditions. Prime PN-31J curing agent, Ajinomoto MY-H curing agent, stir for 10-15 minutes, add EXOLIT AP462 ammonium polyphosphate, FCC-MC03 melamine cyanurate, alumina under stirring conditions, and s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
transition temperatureaaaaaaaaaa
gel timeaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of polymer materials, specifically to a prepreg of a low temperature curable halogen-free flame-retardant epoxy resin composition. The prepreg of the low temperature curable halogen-free flame-retardant epoxy resin composition contains epoxy resin, a compound curing agent, a P-N flame retardant, a metallic oxide or hydroxide flaem retardant, and a solvent type diluent. By a wet impregnation process, the impregnation effect is excellent. The process is suitable for impregnation of various gram weights of fiber fabric.

Description

Technical field [0001] The invention relates to the field of polymer materials, in particular to a low-temperature curing halogen-free flame-retardant epoxy resin composition prepreg method. Background technique [0002] Flame-retardant epoxy resin prepregs are widely used in printed circuit boards, vehicle interiors and structural parts due to their simple process, clean molding process, low product porosity, and good flame retardancy. However, traditional flame-retardant epoxy resin prepregs mostly use brominated epoxy resin and halogen-containing flame retardants. Although this type of prepreg has excellent flame retardant properties, halogen-containing flame retardants and resins burn It will release a large amount of toxic gas and cause serious harm to the ecological environment and human health. In recent years, developed countries such as Europe, the United States and Japan have gradually legislated to restrict the use of halogen-containing flame-retardant materials, and h...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K3/22C08K3/32C08K5/3492C08K7/14C08J5/24
CPCC08J5/24C08J2363/00C08J2463/00C08K3/22C08K3/32C08K5/34928C08K7/14C08K2003/2224C08K2003/2227C08K2003/323C08L63/00C08L2201/02
Inventor 于亮亮刘万双魏毅
Owner 浙江百合航太复合材料有限公司