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Multilayer composite structure three-dimensional fabric and preparation method thereof

A technology of three-dimensional fabrics and combined structures, which is applied in the direction of fabrics, textiles, layered products, etc., and can solve the problems of poor connection performance between layers, long production cycle, and high preparation costs.

Active Publication Date: 2021-05-11
NANJING FIBERGLASS RES & DESIGN INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Needle-punched fabric has the characteristics of fast forming speed and low manufacturing cost, but its interlayer connection performance is not as good as that of 2.5D, three-way orthogonal, fine-knitted and punctured structures.
The 2.5D, three-way orthogonal, fine-woven puncture structure is a three-dimensional fabric with excellent interlayer connection performance and excellent mechanical properties formed by interweaving X, Y, and Z three-way fibers through specific rules, but its production cycle is long and the preparation cost is low. high

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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  • Multilayer composite structure three-dimensional fabric and preparation method thereof
  • Multilayer composite structure three-dimensional fabric and preparation method thereof
  • Multilayer composite structure three-dimensional fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] refer to figure 1 and figure 2 , the present embodiment provides a double-layer plate-shaped composite structure three-dimensional fabric comprising one structural unit, the three-dimensional fabric is a quartz fiber composite fabric, and its shape and size are 150*150*(15+20) mm. The structural unit is composed of a 2.5D structural layer 11 and a needle-punched structural layer; the 2.5D structural layer 11 is the bottom layer of the fabric, its thickness is 15 mm, and its bulk density is 0.9 g / cm 3 The needle-punched structure layer includes some needle-punched units 12 made up of five pieces of satin weave cloth 122 of one layer of quartz fiber and one layer of quartz fiber mesh tire 121, the thickness of the needle-punched structure layer is 20mm, and the bulk density is 0.4g / cm 3 .

[0030] The preparation method of the double-layer combined structure three-dimensional fabric of implementing 1 is:

[0031] (1) Preparation of 2.5D structure layer 11:

[0032] I...

Embodiment 2

[0039] refer to figure 2 , the present embodiment provides a three-dimensional fabric with a cylindrical composite structure consisting of two structural units inside and outside. The three-dimensional fabric is a carbon fiber composite fabric, and the entire fabric is implanted with T700 12K carbon fibers in the Z direction. The shape and size of the fabric are Ф150*( 10+15+5+15)*150mm. The inner structural unit is composed of a 2.5D structural layer 21 and a first needle-punched structural layer 22. The 2.5D structural layer 21 is the inner fabric layer with a thickness of 10 mm and a bulk density of 0.8 g / cm 3 ; The first needle-punched structure layer 22 includes several layers with a layer density of 200g / m 2 Carbon fiber cloth and a layer density of 60g / m 2 An acupuncture unit composed of carbon fiber net tires, the thickness of the first acupuncture structure layer 15 is 15mm, and the bulk density is 0.5g / cm 3 The outer layer structure unit is made up of three-way o...

Embodiment 3

[0051] refer to image 3 , the present embodiment provides a double-layer plate-shaped combined structure three-dimensional fabric comprising a structural unit, the three-dimensional fabric is a combined fabric of mullite fiber and quartz fiber, and its shape and size are 150*150*(20+15+20) mm. The structural unit is composed of a finely punctured structure layer 32, a first needled structure layer 31 and a second needled structure layer 33; the first needled structure layer 31 is the bottom layer of the fabric, its thickness is 20 mm, and its bulk density is 0.7 g / cm 3 ; The finely punctured structure layer 32 is the middle layer of the fabric, the raw material is mullite fiber cloth, the Z direction is quartz fiber, and the surface density of the fiber cloth is 300g / m 2 , with a thickness of 15mm and a bulk density of 0.9g / cm 3 ; The second acupuncture structure layer 33 is the surface layer of the fabric, its thickness is 20mm, and the bulk density is 0.7g / cm 3 ; The st...

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 discloses a multilayer composite structure three-dimensional fabric and a preparation method thereof. The three-dimensional fabric comprises at least one structure unit composed of a three-dimensional weaving structure layer and at least one needling structure layer; each structure unit and two adjacent structure units are connected in a Z direction through a needling process; and the three-dimensional weaving structure layer is a 2.5 D structure layer, a three-direction orthogonal structure layer or a fine weaving puncture structure layer. According to the fabric, the 2.5 D, three-direction orthogonality, fine weaving puncture structure and needling structure are organically combined into the structure and function integrated composite material, the needling structure bears the mechanical properties of heat insulation and heat preservation performance of the material, and the weaving structure bears the mechanical properties of high specific strength, high specific modulus, impact resistance and the like of the material, so that the obtained composite material can meet the use requirements of the material, and rapid and low-cost production can be realized.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a three-dimensional fabric with a multilayer combined structure and a preparation method thereof. Background technique [0002] The needle punching process is to use triangular or other shaped needles with barbs on the edges to repeatedly needle the fluffy fiber web. During the process, the fibers are entangled with each other, and under the action of friction, the fibers move up and down, and the fibers that produce up and down displacement squeeze the fiber net to a certain extent, so that the fiber net is compressed. The vertical "pin" state remains in the Z direction of the fabric, thereby forming a nonwoven with certain strength, density, elasticity and other properties; and through laminated needle punching, a three-dimensional prefabricated body with interlayer connections is formed. Needle-punched fabric has the characteristics of fast forming speed and low manufacturin...

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): D03D25/00D03D15/267D03D15/275D03D15/242D03D13/00B32B5/02B32B5/06B32B5/08B32B5/26B32B7/09B32B9/00
CPCD03D25/005D03D15/00D03D13/008B32B5/024B32B5/028B32B5/06B32B5/08B32B5/26B32B9/007B32B7/09D10B2101/06D10B2101/12D10B2101/16D10B2101/14D10B2101/00D10B2401/063Y02P70/62
Inventor 乔志炜刘延友陈建剑程海霞朱梦蝶
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD
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