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Wave-absorption and high-temperature-resistance composite paper and preparation method thereof

A composite paper and high-temperature-resistant technology, applied in the field of composite paper, can solve the problems of easy peeling off of the wave-absorbing coating, short service life, and inability to bear loads, and achieve the effects of good flame retardancy, long service life, and guaranteed performance

Active Publication Date: 2015-08-12
LONGPONT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the absorbing particles in the wave-absorbing coating are exposed to the air, they are easily corroded by oxygen in the air. Therefore, the wave-absorbing coating has defects such as easy peeling, high specific gravity, short service life, and inability to bear weight.

Method used

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Examples

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preparation example Construction

[0029] The embodiment of the present invention also provides a method for preparing the above-mentioned wave-absorbing and high-temperature-resistant composite paper, including the following steps:

[0030] Step S01: Prepare raw materials according to the following mass percentages: 10%-68.8% of structural fibers, 0.2%-10% of carbon fibers and 30%-80% of bonding pulp.

[0031] Step S02: Mixing the carbon fiber and the structural fiber and then fluffing to prepare a first slurry with a total mass concentration of the carbon fiber and the structural fiber of 0.01%-8%.

[0032] Step S03: Debonding the bonded pulp to obtain a second slurry with a mass concentration of the bonded pulp of 0.2%-10%.

[0033] Step S04: mixing the first slurry and the second slurry, making pulp, and making blank paper.

[0034] Step S05: Wet the rough paper with water to keep the dryness at 65%-85%.

[0035] Step S06: Hot rolling the blank paper into microwave-absorbing and high-temperature-resistant...

Embodiment 1

[0040] The raw materials are prepared according to the following mass percentages: 68.8% of polym-phenylenediamide isophthalamide fiber, 0.2% of carbon fiber, and 30% of polym-phenylene isophthalamide pulp. Wherein the carbon fiber is composed of the first carbon fiber and the second carbon fiber with a mass ratio of 1:3. Wherein, the length of the first carbon fiber is 0.5-3 mm. The length of the second carbon fiber is 3-7 mm.

[0041]The polym-phenylene isophthalamide fibers and carbon fibers were disintegrated in a mixer for 15 minutes to obtain the first slurry. The poly-m-xylylene isophthalamide pulp was disintegrated in a mixer for 30 minutes to obtain a second slurry. Uniformly mix the first slurry and the second slurry, make pulp, transfer to a cylinder paper machine, and preliminarily dry to obtain rough paper. After the blank paper is wetted, it is balanced for more than 10 hours, and the dryness is maintained at 65%. The temperature of the calender is controlled...

Embodiment 2

[0043] Raw materials are prepared according to the following mass percentages: 10% of structural fibers, 10% of carbon fibers, and 80% of polyisophthalamide m-xylylenediamine pulp. Among them, the structural fibers are composed of poly-m-phenylene isophthalamide fibers and poly-p-phenylene terephthalamide fibers at a mass ratio of 2:1. Wherein the carbon fiber is composed of the first carbon fiber and the second carbon fiber with a mass ratio of 1:4. Wherein, the length of the first carbon fiber is 0.5-3 mm. The length of the second carbon fiber is 3-7 mm.

[0044] Dissolve the structural fibers and carbon fibers in a mixer for 10 minutes to prepare the first slurry. The poly-m-xylylene isophthalamide pulp was disintegrated in a mixer for 30 minutes to obtain a second slurry. Uniformly mix the first slurry and the second slurry, make pulp, transfer to a cylinder paper machine, and preliminarily dry to obtain rough paper. After the blank paper is wetted with water, it is ba...

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Abstract

The present invention discloses wave-absorption and high-temperature-resistance composite paper, which comprises, by mass, 10-68.8% of structure fibers, 0.2-10% of carbon fibers, and 30-80% of adhesion pulp. The present invention further discloses a wave-absorption and high-temperature-resistance composite paper preparation method. According to the wave-absorption and high-temperature-resistance composite paper of the present invention, the carbon fibers having the wave-absorption performance are added to the structure fibers and can not be peeled from the whole composite paper structure so as to ensure the durable stability of the wave-absorption performance; and the fire retardation of the structure fibers is good, the erosion of oxygen on the carbon fibers can be effectively isolated, and the high temperature resistance is provided, such that the use performance of the composite paper at the high temperature is ensured.

Description

technical field [0001] The invention belongs to the technical field of composite paper, and in particular relates to a wave-absorbing and high-temperature resistant composite paper and a preparation method thereof. Background technique [0002] At present, the absorbing stealth material is realized by coating the absorbing coating on the surface. The wave-absorbing coating is obtained by mixing particles with wave-absorbing properties and adhesives with bonding effects. After coating it on materials that require stealth, such as drones, missiles, warships, etc. Since the absorbing particles in the wave-absorbing coating are exposed to the air, they are easily corroded by oxygen in the air. Therefore, the wave-absorbing coating has defects such as easy peeling, high specific gravity, short service life, and inability to bear weight. Contents of the invention [0003] The purpose of the embodiments of the present invention is to overcome the above-mentioned shortcomings of...

Claims

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Application Information

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IPC IPC(8): D21H15/12D21H13/50D21H13/26
Inventor 林德苗李慧陶琳肖东华曾一兵张永生
Owner LONGPONT
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