A kind of weaving fiber composite plate based on nano-ceramic material and its preparation method

A technology of fiber composite and nano-ceramics, which is applied in clay products, other household utensils, household utensils, etc., can solve the problems of difficult composite, destruction of fiber-reinforced phase structure, high melting point of ceramics, etc., and achieve good high-temperature performance, high specific strength, The effect of low density

Active Publication Date: 2020-09-18
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the melting point of ceramics is very high, and the temperature required to be heated during the compounding process is too high, which will destroy the structure of the fiber-reinforced phase, making it difficult to successfully compound the two.

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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  • A kind of weaving fiber composite plate based on nano-ceramic material and its preparation method
  • A kind of weaving fiber composite plate based on nano-ceramic material and its preparation method
  • A kind of weaving fiber composite plate based on nano-ceramic material and its preparation method

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preparation example Construction

[0026] Such as figure 1 Shown, the present invention proposes a kind of preparation method based on the weaving fiber composite plate of nano-ceramic material, and this method comprises the steps:

[0027] (a) Evenly spray nano-ceramic powder with a particle size of preferably 1 nm to 1000 nm on both sides of the weaving fiber cloth with a neat weaving direction. Heating at a temperature of ℃~200℃ and keeping it warm for 5min~10min, so that the nano-ceramic powder is pre-impregnated into the woven fiber cloth to obtain a prepreg;

[0028] (b) Cut the cooled prepreg according to the specified specifications to obtain a single-layer composite board, and then put 5 to 10 single-layer composite boards into the mold, at 0°C to 100°C higher than the melting point of the nano-ceramic powder Or heat at a temperature lower than the melting point of the nano-ceramic powder at 0°C to 100°C, and apply a pressure of 1MPa to 500MPa, and keep for 5min to 200min to completely bond the compos...

Embodiment 1

[0035] (a) Evenly spray the nano-ceramic powder whose particle size is preferably 1nm on both sides of the weaving fiber cloth with neat weaving direction, then heat and keep warm for 10 minutes at a temperature lower than the melting point of the nano-ceramic powder at 200°C to make the nano-ceramic The powder is pre-impregnated into the woven fiber cloth to obtain the prepreg;

[0036] (b) Cut the cooled prepreg according to the specified specifications to obtain a single-layer composite plate, then put 10 single-layer composite plates into the mold, heat at a temperature 100°C higher than the melting point of the nano-ceramic powder, and Pressurize at 1MPa and keep for 200min to make the composite board fully bonded;

[0037] (c) Finally stop heating and slowly release the pressure, and open the mold after cooling to room temperature to obtain the woven fiber composite board.

Embodiment 2

[0039] (a) Evenly spray the nano-ceramic powder whose particle size is preferably 1000nm on both sides of the weaving fiber cloth with neat weaving direction, then heat and keep warm at the melting point temperature of the nano-ceramic powder for 5 minutes, so that the nano-ceramic powder is pre-impregnated into the weaving Obtain prepreg from fiber cloth;

[0040] (b) Cut the cooled prepreg according to the specified specifications to obtain a single-layer composite plate, then put 8 single-layer composite plates into the mold, heat at a temperature higher than the melting point of the nano-ceramic powder at 55°C, and Pressurize at 60MPa and keep for 5min to fully combine the composite panels;

[0041] (c) Finally stop heating and slowly release the pressure, and open the mold after cooling to room temperature to obtain the woven fiber composite board.

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Abstract

The invention belongs to the moulding processing field of composite material, and discloses a nanometer ceramic material based woven fiber composite sheet material, and a preparation method thereof. According to the preparation method, the two sides of woven fiber cloth are coated with nanometer ceramic powder, heating is carried out for a certain period of time so as to obtain a prepreg; the prepreg is subjected to cutting so as to obtain a single layer composite sheet material, a plurality of the single layer composite sheet materials are introduced into a mould for heating and pressure increased treatment so that complete combination of the single layer composite sheet materials is realized; and at last, heating is stopped, pressure is reduced, cooling to room temperature is carried out, and demoulding is carried out so as to obtain the nanometer ceramic material based woven fiber composite sheet material. According to the preparation method, the prepreg is obtained through heatingat a temperature 0-20 DEG C lower than nanometer ceramic powder melting point, full dipping of the nanometer ceramic powder and the woven fiber cloth is ensured, and at the same time, and overheatingfor a too long period of time is avoided; hot pressing technology is adopted, an obtained product is heated to a temperature higher than nanometer ceramic powder melting point 0 to 100 DEG C or lowerthan nanometer ceramic powder melting point 0 to 100 DEG C, so that the nanometer ceramic material based woven fiber composite sheet material is provided with ceramic performance characteristics and fiber performance characteristics.

Description

technical field [0001] The invention belongs to the field of composite material forming and processing, and more specifically relates to a braided fiber composite plate based on nano ceramic material and a preparation method thereof. Background technique [0002] Braided carbon fiber reinforced polymer matrix composites use polymer as the matrix and carbon fibers with an aspect ratio of more than 1000 as the reinforcement phase. Due to the uninterrupted reinforcement effect of continuous fibers, they have ultra-high specific strength and specific stiffness. This new type of material is an ideal material for "substituting plastic for steel" in aerospace, automotive and other industries to achieve lightweight. It has a very broad application prospect. For example, the parts of Boeing 787 aircraft using composite materials account for 50% of the weight of the total aircraft. [0003] However, when the carbon fiber reinforced polymer matrix composite material is higher than the ...

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): C04B35/80C04B33/36C04B33/00C04B35/00C04B35/645C04B33/32
Inventor 王云明孙艳玲周华民黄志高张云郑嘉琦
Owner HUAZHONG UNIV OF SCI & TECH
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