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Aerospace and national-defense special fabric and preparing method thereof

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

Active Publication Date: 2015-12-09
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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  • Aerospace and national-defense special fabric and preparing method thereof

Examples

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 fabric, in particular to aerospace and national-defense special fabric and a preparing method thereof. The aerospace and national-defense special fabric comprises a cloth layer. Waterproof layers are arranged on the two faces of the cloth layer, and a glue layer is arranged on the waterproof layer on one face. The preparing method of the aerospace and national-defense special fabric includes the steps that the waterproof layers are formed on the two faces of cloth to enable the fabric to have the good waterproof function; the cloth face is smooth in a press polish mode, and glue leakage is prevented during coating; then the cloth is coated with glue formed by mixing PU glue and flame retardants to enable the glue in the cloth to achieve the certain flame retardant effect. The finally prepared aerospace and national-defense special fabric can bear the high water pressure, is soft in hand feeling and excellent in fireproof performance and further has the advantages of being ultrahigh in strength, high in modulus, resistant to the high temperature, acid and base and the like; in addition, due to double-layer sealing of the cloth layer, the aerospace and national-defense special fabric can bear the ultrahigh water pressure which can reach 5,000 MM to 8,000 MM, and waterproof performance is improved.

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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IPC IPC(8): D06M15/564D06M101/36
Inventor 倪士勇
Owner 倪士勇
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