Supercharge Your Innovation With Domain-Expert AI Agents!

A wave-absorbing composite material based on ramie fiber and ramie bone and its preparation method

A ramie fiber and composite material technology, applied in the directions of plant fiber, fiber treatment, fiber type, etc., can solve the problems of increased cost and difficulty in manufacturing, and achieve the effect of improving wave absorption performance, strong intermediate frequency absorption characteristics, and good wave absorption and stealth.

Active Publication Date: 2022-04-22
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The basis for its selection mainly includes the following aspects: one is to obtain a wider sound absorption spectrum, and the sound absorption coefficient meets certain requirements within the specified noise frequency range; the other is to have sufficient strength, stiffness and hardness to be able to Bear a certain load; third, the manufacturing process is easy to implement, low in cost, and has obvious environmental protection features; fourth, the structure should be simple, and an overly complicated structure is not only difficult to manufacture, but also increases the cost of materials in transportation, installation, use, and maintenance; five It is to ensure excellent comprehensive performance, including corrosion resistance, fire prevention, moisture resistance, non-toxic, beautiful, etc.

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A wave-absorbing composite material based on ramie fiber and ramie bone and its preparation method
  • A wave-absorbing composite material based on ramie fiber and ramie bone and its preparation method
  • A wave-absorbing composite material based on ramie fiber and ramie bone and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A method for preparing a wave-absorbing composite material based on ramie fiber and ramie bone. The composite material is composed of metallized ramie fiber felt and nano-reinforced ramie bone micro-perforated plate at a volume ratio of 1:1. The specific preparation steps are as follows:

[0050] Step 1, the preparation of ramie fiber felt: including the preparation of ramie bast fiber, the preparation of ramie wood fiber, fiber mixing, mixed fiber opening, mixed fiber hot-air bonding five process steps:

[0051] a. The preparation of ramie bast fiber: first peel off the ramie skin from the ramie plant, remove the horny layer on the surface of the ramie skin, then put it into 5% NaOH solution and soak for 5 hours, rinse and dry to obtain the ramie bast fiber, and set aside ;

[0052] b. Preparation of ramie wood fiber: Firstly, the remaining ramie bone after the ramie skin is peeled off from the ramie plant is split and pith removed, then soaked in 5% NaOH solution for...

Embodiment 2

[0065] A method for preparing a wave-absorbing composite material based on ramie fiber and ramie bone. The composite material is composed of metallized ramie fiber felt and nano-reinforced ramie bone micro-perforated plate at a volume ratio of 1:1. The specific preparation steps are as follows:

[0066] Step 1, the preparation of ramie fiber felt: including the preparation of ramie bast fiber, the preparation of ramie wood fiber, fiber mixing, mixed fiber opening, mixed fiber hot-air bonding five process steps:

[0067] a. Preparation of ramie bast fiber: first peel off the ramie skin from the ramie plant, remove the horny layer on the surface of the ramie skin, then soak in 10% NaOH solution for 3 hours, rinse and dry to obtain the ramie bast fiber, set aside ;

[0068] b. Preparation of ramie wood fiber: Firstly, the remaining ramie bone after peeling off the ramie skin from the ramie plant is split and pith removed, then soaked in 10% NaOH solution for 3 hours, rinsed, dri...

Embodiment 3

[0081] A method for preparing a wave-absorbing composite material based on ramie fiber and ramie bone. The composite material is composed of metallized ramie fiber felt and nano-reinforced ramie bone micro-perforated plate at a volume ratio of 1:1. The specific preparation steps are as follows:

[0082] Step 1, the preparation of ramie fiber felt: including the preparation of ramie bast fiber, the preparation of ramie wood fiber, fiber mixing, mixed fiber opening, mixed fiber hot-air bonding five process steps:

[0083] a. Preparation of ramie bast fiber: first peel off the ramie skin from the ramie plant, remove the horny layer on the surface of the ramie skin, then soak in 8% NaOH solution for 4 hours, rinse and dry to obtain the ramie bast fiber, set aside ;

[0084] b. Preparation of ramie wood fiber: Firstly, the remaining ramie bone after the ramie skin is peeled off from the ramie plant is split and pith removed, then soaked in 8% NaOH solution for 4 hours, rinsed, dri...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a wave-absorbing composite material based on ramie fiber and ramie bone, which belongs to the field of new materials. The composite material is composed of metallized ramie fiber felt and nanometer reinforced ramie bone micro-perforated plate. The preparation method of the wave-absorbing composite material of ramie fiber and ramie bone includes four steps of preparation of ramie fiber mat, preparation of metallized ramie fiber mat, preparation of nano-reinforced ramie bone micro-perforated plate, and preparation of composite material. The innovation of the preparation and composite method of porous materials and micro-perforated plates has realized the structural optimization of the absorbing material and the improvement of the absorbing performance. The prepared absorbing composite material has good wave absorbing stealth, sound insulation, heat insulation, weather resistance and corrosion resistance. , is a kind of ideal material for both military and civilian use.

Description

technical field [0001] The invention belongs to the field of new materials, and in particular relates to a wave-absorbing composite material based on ramie fiber and ramie bone and a preparation method thereof. Background technique [0002] After decades of construction and development, the infrastructure and equipment of many industries in my country have been perfected day by day, but the associated noise, waste gas, waste water, waste residue and dust have a great impact on human working and living environment, air / water / soil and other resources. pollution has become an important factor affecting people's work and life and physical and mental health, restricting the sustainable development of human society and economy, and hindering the further improvement of people's quality of life; noise pollution (such as figure 1 ) has become an important factor affecting the comprehensive performance of civilian and military equipment. Noise will not only directly damage the operati...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B32B9/02B32B9/04B32B9/00B32B27/02B32B27/12B32B27/32B32B27/14B32B3/24B32B33/00B32B37/02B32B37/06B32B37/10B32B37/14B32B38/04B32B38/18D04H1/541G10K11/168D06M11/83C08L97/02C08L63/00C08K3/22D06M101/06D06M101/04D06M101/20
CPCB32B5/08B32B3/266B32B5/16B32B5/30B32B33/00B32B37/02B32B37/06B32B37/10B32B37/14B32B38/04B32B38/1816G10K11/168D06M11/83C08L97/02D04H1/541D06M2101/06D06M2101/04D06M2101/20C08K2201/011C08K2003/2248C08K2003/2296C08L2205/025C08L2205/03B32B2038/047B32B2262/14B32B2262/0253B32B2262/065B32B2264/12B32B2264/102B32B2264/065B32B2307/558B32B2307/102B32B2307/306B32B2419/00C08L63/00C08K3/22
Inventor 何玉琴何惠方姆奥尔刘克非吴庆定
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com