Composite material with high obstruction and high performance and preparation method thereof

A composite material and high-performance technology, applied in the direction of chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve the problem that high barrier materials cannot meet the requirements, nylon fiber has low elastic modulus, and low temperature impact strength etc. to achieve excellent flexibility and elasticity, good mechanical properties, and high breaking strength

Inactive Publication Date: 2009-10-14
CHINESE TEXTILE ACAD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the shortcomings of nylon fiber itself, such as low elastic modulus, high water absorption, low low-temperature impact strength, and deformation after water absorption, the use of this high-performance composite membrane for aviation has been limited to a certain extent.
[0005] Therefore, the existing high-barrier high-performance materials still have defects in the application of aviation and aerospace fields, and my country's high-barrier materials in the aviation and aerospace fields cannot meet the requirements.

Method used

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  • Composite material with high obstruction and high performance and preparation method thereof
  • Composite material with high obstruction and high performance and preparation method thereof
  • Composite material with high obstruction and high performance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Such as figure 1 As shown, the high-barrier high-performance composite material of the present invention is composed of polyvinyl fluoride film layer 1, polyurethane adhesive layer 2, polyester aluminized film layer 3, polyurethane adhesive layer 4, aramid fabric Layers 5 are sequentially combined to form a laminated body.

[0069] Wherein, polyvinyl fluoride film is Tedlar film, and aramid fiber fabric is Kevlar fabric, adopts following method to prepare:

[0070] 1) The solid polyurethane adhesive particles are melted by a hot-melt adhesive machine, and the Tedlar film layer 1 and the polyester aluminized film layer 3 are combined on the hot-melt high-performance polyurethane adhesive through transfer gluing and composite rolling processes Together, the melting temperature of the hot melt adhesive machine is 70°C, and the glue amount of the high-performance polyurethane adhesive is 8g / m 2 , the composite rolling pressure is 1.0MPa, and the composite rolling temperat...

Embodiment 2

[0073] Such as figure 1 As shown, the high-barrier high-performance composite material of the present invention is composed of polyvinyl fluoride film layer 1, polyurethane adhesive layer 2, polyester aluminized film layer 3, polyurethane adhesive layer 4, aramid fabric Layers 5 are sequentially combined to form a laminated body.

[0074] The above-mentioned laminate is prepared by the following method:

[0075] 1) The solid polyurethane adhesive particles are melted by a hot-melt adhesive machine, and the polyvinyl fluoride film layer 1 and the polyester aluminized film layer 3 are bonded by the hot-melt high-performance polyurethane adhesive through transfer gluing and composite rolling. Composite together, where the melting temperature of the hot melt machine is 70°C, and the amount of glue applied by the high-performance polyurethane adhesive is 10g / m 2 , the composite rolling pressure is 1.0MPa, and the composite rolling temperature is 25°C; the thickness of the polyvin...

Embodiment 3

[0078] Such as figure 2 and 3 As shown, the high-barrier high-performance composite material of the present invention is composed of polyvinyl fluoride film layer 1, polyurethane adhesive layer 2, polyester aluminized film layer 3, polyurethane adhesive layer 4, aramid fabric Layer 5 and polyurethane coating 6 are sequentially combined to form a laminated body.

[0079] Wherein, polyvinyl fluoride film is Tedlar film, and aramid fiber fabric is Kevlar fabric, adopts following method to prepare:

[0080] 1) The solid polyurethane adhesive particles are melted by a hot-melt adhesive machine, and the Tedlar film layer 1 and the polyester aluminized film layer 3 are combined on the hot-melt high-performance polyurethane adhesive through transfer gluing and composite rolling processes Together, the melting temperature of the hot melt adhesive machine is 70°C, and the amount of glue applied by the high-performance polyurethane adhesive is 9g / m 2 , the composite rolling pressure ...

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Abstract

The invention relates to a composite material with high obstruction and high performance and a preparation method thereof. The composite material with high obstruction and high performance is a laminated body sequentially compounded by a polyfluoroethylene thin film layer, a polyurethane adhesive layer, an AL / PET film layer, a polyurethane adhesive layer, a Kevlar fabric layer and a polyurethane coating. The composite material can ensure lower gas permeability and good mechanical properties and fatigue resistivity under the condition of lighter quality and can be really adapted to the application requirement on the material with high obstruction in the aerospace field. The preparation method is a dry method solvent-free composite technology, the solid content of adhesive used for the method is 100 percent, and no solvent is contained. The method has the great characteristics of environment protection, high product hygiene index and product quality guarantee.

Description

technical field [0001] The invention relates to a high-barrier high-performance composite material and a preparation method thereof, in particular to a class of novel composite materials suitable for aviation and aerospace fields. Background technique [0002] At present, the high-barrier materials we are familiar with in China are mostly used in packaging and medical and health fields, but the high-barrier materials suitable for aviation and aerospace fields cannot really meet the requirements. High-performance film materials for aviation generally require properties such as heat resistance, flame retardancy, low temperature resistance, high strength and low weight, insulation, waterproof and moisture resistance, etc. It is difficult for film materials on the market to take into account these properties. Some film materials are often too heavy or thick to meet the requirements of light weight under the condition of ensuring low gas permeability; some film materials can meet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/12B32B27/06B32B27/40B32B27/36B32B15/04B32B15/09B32B37/12B32B37/10B32B37/15B32B38/16B32B38/00
Inventor 高诚贤曹明华李俊德葛慧宪
Owner CHINESE TEXTILE ACAD
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