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Multilayer ceramic tissue paper capable of realizing gradient temperature resistance

A technology of multi-layer ceramics and tissue paper, applied in the direction of layered products, paper/cardboard layered products, non-polymer adhesive additives, etc., can solve the problem of complex composition of ceramic fiber heat insulation boards, increased material costs, and disadvantages Problems such as popularization and application, to achieve the effect of reducing material cost, reducing thermal conductivity, and reducing thermal bridge

Active Publication Date: 2019-11-15
SUZHOU HONGJIU AVIATION THERMAL MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the composition content of the ceramic fiber heat insulation board is relatively complex, and nano-scale raw materials are mostly used, which greatly increases the cost of materials, which is not conducive to popularization and application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A multi-layer ceramic tissue paper capable of realizing gradient temperature resistance is characterized in that the total thickness of the tissue paper is 2mm, and it is composed of a single-layer ceramic tissue paper, and the thickness of the single-layer tissue paper is 0.2mm.

[0018] Further, the content of zirconium latex in the tissue paper is distributed in a gradient along the thickness direction, and the content of zirconium latex in the surface layer is 15%, which gradually decreases to the inner layer, and decreases to 2% in the innermost layer; the average diameter of the ceramic fiber is 3 μm, showing a positive The maximum temperature resistance of the surface tissue paper is 1500 °C, and the maximum temperature resistance of the innermost layer tissue paper is 1000 °C, with a gradient change along the thickness direction; the thermal conductivity at room temperature is 0.030W / (m K), and the thermal conductivity at 1100 °C is 0.100 W / (m·K).

[0019] Furth...

Embodiment 2

[0022] A multi-layer ceramic tissue paper capable of realizing gradient temperature resistance is characterized in that the total thickness of the tissue paper is 4mm, and it is composed of a single-layer ceramic tissue paper, and the thickness of the single-layer tissue paper is 0.5mm.

[0023] Further, the content of zirconium latex in the tissue paper is distributed in a gradient along the thickness direction, and the content of zirconium latex in the surface layer is 20%, which gradually decreases to the inner layer, until the innermost layer decreases to 0.1%; the average diameter of the ceramic fibers is 2.5 μm, showing Normal distribution, the maximum temperature resistance of the surface tissue paper is 1600 °C, and the maximum temperature resistance of the innermost layer tissue paper is 1100 °C, with a gradient change along the thickness direction; the thermal conductivity at room temperature is 0.029W / (m K), and the thermal conductivity at 1100 °C is 0.090W / (m·K).

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Abstract

The invention discloses multilayer ceramic tissue paper capable of realizing gradient temperature resistance. The multilayer ceramic tissue paper is a heterogeneous material and is composed of singlelayers of ceramic tissue paper. Ceramic fibers are horizontally distributed on single layers, and no longitudinal penetration fiber exists. Zirconium latex content is in graded distribution along a thickness direction and is gradually decreased from the surface layer to the internal layer, different zirconium latex content corresponds to thermal insulation of different temperature intervals, material cost is reduced, and energy conservation and emission reduction are realized. A compound additive is added into the tissue paper. When a hot side temperature is relatively high, a melting phenomenon occurs among low-melting-point glass fibers in the compound additive, and the compound additive and an inorganic adhesive interact to realize seamless bonding between layers. Meanwhile, zirconium latex is changed into zirconia fibers after being heated, and the zirconia fibers are coated around the ceramic fibers, so that temperature resistance of the tissue paper is improved, and overall high-temperature structural strength of the tissue paper is further improved.

Description

technical field [0001] The invention relates to a multilayer ceramic tissue paper, in particular to a multilayer ceramic tissue paper capable of realizing gradient temperature resistance. Background technique [0002] Ceramic fiber is a fibrous lightweight refractory material whose main chemical composition is aluminum silicate. It is a lightweight fibrous refractory material with light weight, low thermal conductivity, small specific heat capacity, high temperature resistance, good thermal stability and Resistance to mechanical shock and other advantages, its composition SiO 2 :Al 2 o 3 =1~1.2, Al 2 o 3 The higher the content, the better the heat resistance, and can withstand high temperatures of 1000-1500°C. Fibers such as aluminum silicate fibers also have the advantages of high-temperature oxidation resistance, high-temperature strength, and high-temperature creep resistance. They are used as high-temperature fiber insulation materials. It has been developed rapidly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B29/00B32B7/12C09J1/02C09J1/00C09J11/04C09J11/08
CPCB32B7/12B32B29/005B32B2307/306C09J1/00C09J1/02C09J11/04C09J11/08
Inventor 陈照峰叶信立
Owner SUZHOU HONGJIU AVIATION THERMAL MATERIALS TECH CO LTD
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