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A kind of aerospace defense special fabric and preparation method thereof

An aerospace and national defense technology, applied in the field of fabrics, can solve the problems of poor fiber creep resistance, poor adhesion performance, and low surface polarity, and achieve excellent fire resistance, increased waterproof performance, and soft hand feeling.

Active Publication Date: 2017-11-21
倪士勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the melting point of PE is only about 150°C, it is not suitable for use at high temperatures
[0006] (2) The creep resistance of the fiber is poor, and it is prone to deformation under continuous stress, so it is not suitable for use under continuous stress
[0007] (3) Because the structure is chemically inert, the surface polarity is low, and the adhesion performance with other materials is poor, it is difficult to manufacture composite materials

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
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  • A kind of aerospace defense special fabric and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as figure 1 As shown, a special fabric for aerospace and national defense provided by the present invention includes a cloth layer 1, and waterproof layers 2 are arranged on both sides of the cloth layer, and an adhesive layer 3 is arranged on the waterproof layer 2 on one side.

[0052] The aerospace defense special fabric provided by the present invention is provided with a waterproof layer 2 on both sides of the cloth layer 1, and then adds a glue layer 3 on the waterproof layer 2 on one side, and the obtained fabric not only has the performance of the fabric itself, but also through the The double-layer sealing of the fabric layer makes it have super water pressure, which can reach 5000-8000MM, which increases the waterproof performance.

[0053] Aramid 1414 has a golden yellow appearance and looks like a shiny metal thread, but it is actually a liquid crystal polymer composed of rigid long molecules. Because its molecular chains are highly oriented along the ...

Embodiment 2

[0068] A special fabric for aerospace defense, prepared by the following method:

[0069] 10D aramid fiber 1414 is used to weave fabric, and the thickness of the fabric is 0.8mm;

[0070] After cleaning the cloth, dry it or set it at high temperature to make the cloth dry and not wet;

[0071] Immerse the cloth in the aqueous solution of strong waterproofing agent to form a waterproof layer 2 on both sides of the cloth, then dry or set the shape;

[0072] Then calender 2 times;

[0073] On one side of the waterproof layer 2 after calendering, apply a mixture of PU glue and an environmentally friendly flame retardant twice, wherein the content of the environmentally friendly flame retardant in the PU glue is 1%, forming a glue layer 3, the glue Layer 3 has a thickness of 1mm;

[0074] Stay at 170°C for 1.5s for drying after each application of glue, and finally obtain a special aerospace and defense fabric with waterproof layer 2, fabric layer 1, waterproof layer 2 and glue ...

Embodiment 3

[0081] A special fabric for aerospace defense, prepared by the following method:

[0082] Use 50D aramid fiber 1414 to weave into fabric, the thickness of the fabric is 1.5mm;

[0083] After cleaning the cloth, dry it or set it at high temperature to make the cloth dry and not wet;

[0084] Immerse the cloth in the aqueous solution of strong waterproofing agent to form a waterproof layer 2 on both sides of the cloth, then dry or set the shape;

[0085] Then calender 3 times;

[0086] On one side of the waterproof layer 2 after calendering, apply a mixture of PU glue and an environmentally friendly flame retardant twice, wherein the content of the environmentally friendly flame retardant in the PU glue is 2%, forming a glue layer 3, the glue Layer 3 has a thickness of 1.5mm;

[0087] Stay at 180°C for 1.5s for drying after each application of glue, and finally obtain a special aerospace and defense fabric with waterproof layer 2, fabric layer 1, waterproof layer 2 and glue l...

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
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Abstract

The invention relates to the field of fabrics, in particular to a special fabric for aerospace and national defense and a preparation method thereof. A special fabric for aerospace and national defense, comprising a cloth layer, waterproof layers are arranged on both sides of the cloth layer, and an adhesive layer is arranged on the waterproof layer of one side. The preparation method is to firstly put a waterproof layer on the fabric, and form a waterproof layer on both sides of the fabric to make the fabric have a good waterproof function; make the fabric surface smooth by calendering to prevent glue leakage during coating; then apply PU glue and flame retardant The glue mixed with the agent makes the glue in the fabric achieve a certain flame-retardant effect. The final aerospace and defense special fabric can withstand high water pressure, and has a soft hand feeling, excellent fire resistance, and has ultra-high strength, High modulus, high temperature resistance, acid and alkali resistance and other advantages; and through the double-layer sealing of the fabric layer, it has super strong water pressure, and the water pressure can reach 5000-8000MM, which increases the waterproof performance.

Description

technical field [0001] The invention relates to the field of fabrics, in particular to a special fabric for aerospace and national defense and a preparation method thereof. Background technique [0002] At present, the parachute fabric mainly uses 100% high-strength nylon 66 umbrella fabric. This parachute fabric is as thin as a cicada's wing, but its strength is second to none among fabrics of the same weight and thickness. 100% high-strength nylon 66 umbrella cloth is woven from a high-density, high-strength, fracture-resistant nylon fiber material, imported double-sided silicone coating, light and thin, good flexibility, high tear strength and tensile resistance Strength, zero air permeability, good burn resistance, good anti-aging performance, anti-ultraviolet radiation, good wear resistance, has been widely used in paragliders, air dancers, sails, tents, sleeping bags, stunt kites. [0003] However, 100% high-strength nylon 66 umbrella cloth has high hygroscopicity and...

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
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/564D06M101/36
Inventor 倪士勇
Owner 倪士勇
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