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Preparation process of wave-absorbing material with honeycomb sandwich structure

A technology of honeycomb sandwich structure and wave absorbing material, which can be used in protective equipment, protective clothing, lamination auxiliary operation, etc., can solve the problem of difficulty in controlling the distribution uniformity of wave absorbing particles, and achieve the effect of wide wave absorbing effect.

Active Publication Date: 2019-03-01
YANGZHOUSRKLE INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the multi-layer distribution of absorbing agent, the absorbing effect of the design frequency can be achieved to a certain extent, but the uniformity of the absorbing particle distribution is difficult to control, and the thickness and weight of the prepared material are affected by the precision of the rolling process and the material

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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  • Preparation process of wave-absorbing material with honeycomb sandwich structure
  • Preparation process of wave-absorbing material with honeycomb sandwich structure
  • Preparation process of wave-absorbing material with honeycomb sandwich structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Fiber material: choose fine denier carbon black fiber (22.2dtex / 4F×12) containing nano-carbon black particles and fine denier polyester fiber (81dtex / 30F×3) to cooperate.

[0034] (2) Design of honeycomb layered structure: the designed honeycomb shape is square rhombus, arranged in relative arrangement, the diagonal size of sample 1 rhombus (2.8cm×4.9cm), see figure 1 , sample 2 rhombus diagonal size (1.5cm×2.5cm), see figure 2 . The square diamonds of the two fibers of each type are equal in size, each diamond is a double-layer single-sided plain weave, and the upper and lower fabrics are interwoven at the junction of the diamonds; the front and back of the fabric are mirror images of each other.

[0035] (3) Weaving of fabric with honeycomb layered structure: According to the design requirements of yarn thickness and honeycomb layered structure, design the pattern and color structure of the fabric in the computerized flat knitting machine pattern design system, ...

Embodiment 2

[0044] (1) Fiber material: choose to add nano-TiO 2 Matte polyester fiber (81dtex / 30F×3) with particles and fine-denier carbon black fiber (22.2dtex / 4F×12) containing nano-carbon black particles are combined.

[0045] (2) Design of honeycomb layered structure: the designed honeycomb structure is a quadrangular rhombus, and the diagonal size of the rhombus (2.7cm×5.2cm) is arranged in a staggered manner, see Figure 5 shown. The fabric is a double-layer single-sided plain weave, and the upper and lower fabrics are interwoven at the intersection of the two yarns; the front and back of the fabric are mirror images of each other.

[0046] (3) Weaving of fabric with honeycomb layered structure: According to the design requirements of yarn thickness and honeycomb layered structure, design the pattern and color structure of the fabric in the computerized flat knitting machine pattern design system, and weave on the machine. The needle size of the computerized flat knitting machine ...

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Abstract

The invention discloses a preparation technology for a wave-absorbing material with a honeycomb sandwich structure. The invention selects two or more fine fibers with different wave-absorbing properties and designs the fibers with different wave-absorbing properties into a fabric weave with a honeycomb arrayed and layered structure, so that the maximal internal interference of the absorbing wave of the fabric is realized. In order to further increase the material strength and wave-absorbing efficiency of the material, the fabric with the honeycomb layered structure is soaked in a plasticizer solution containing a certain concentration of wave-absorbing agent for several minutes, the uniform distribution of the wave-absorbing agent in the fabric is realized, and then the heat setting treatment is performed and the structure stability of the honeycomb sandwich structure material is increased. The invention combines the honeycomb layered structure of the fabric and the reasonable distribution of various wave-absorbing materials, so as to realize the efficient wave absorption of the material and meet the 'thin, light, wide and strong' development tendency of the wave-absorbing material.

Description

technical field [0001] The invention relates to a preparation process of a high-efficiency wave-absorbing material, and specifically discloses a preparation method of a wave-absorbing material with a honeycomb sandwich structure, which can be used to prepare electromagnetic shields or military stealth equipment. Background technique [0002] With the development of information technology, more and more electromagnetic waves are exposed in the air, affecting the quality of communication and the normal use of precision instruments and human health. The application of wave-absorbing materials in large-scale equipment protective covers can improve the accuracy of equipment and reduce electromagnetic pollution. . Information acquisition and anti-acquisition are the key technologies of modern military equipment, and the absorbing performance of stealth materials (materials that can absorb radar electromagnetic waves) is one of the important indicators to measure modern military eq...

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): B32B3/12B32B5/02B32B5/12B32B5/26B32B37/06B32B37/10B32B38/08B32B38/18
CPCB32B3/12B32B5/02B32B5/12B32B5/26B32B37/06B32B37/10B32B38/08B32B38/1808B32B2307/212B32B2571/02
Inventor 徐英莲程田田傅雅琴
Owner YANGZHOUSRKLE INDAL
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