Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of preparation method of thermal insulation material and thermal insulation material prepared by the method

A technology of thermal insulation materials and composite materials, applied in textiles and papermaking, non-woven fabrics, fiber processing, etc., can solve problems such as unsuitable application scenarios, achieve good dimensionality, improve thermal insulation performance, and high oxidation resistance Effect

Active Publication Date: 2021-10-29
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Multiple impregnations endow the material with higher strength, but also greatly increase the density of the material, which is not suitable for application scenarios that require light weight of 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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of preparation method of thermal insulation material and thermal insulation material prepared by the method
  • A kind of preparation method of thermal insulation material and thermal insulation material prepared by the method
  • A kind of preparation method of thermal insulation material and thermal insulation material prepared by the method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0045] The present invention provides a method for preparing a heat insulating material in a first aspect. Specifically, refer to figure 1 , the preparation method comprises the steps of:

[0046] (1) Preparation of anti-scouring fiber matrix: superimpose and needle the first fiber cloth and the first fiber mesh tire to form the lower fiber preform; Fiber prefabricated body; continue to superimpose at least one layer of the third fiber cloth and the third fiber mesh tire and needle punching, spraying 5-15g / cm of surface reinforcement material comprising ceramic filler and phenolic binder during each layer of needle punching 2 , forming the upper fiber preform; using fibers to sew the lower fiber preform, the middle fiber preform and the upper fiber preform, and curing to obtain the anti-scouring fiber matrix; wherein, the ceramic filler and the phenolic binder The mass ratio is 100:(5-100); the ceramic filler includes glass powder, mica powder and talcum powder, and the mass...

Embodiment 1

[0088] S1. Preparation of scour-resistant fiber matrix

[0089] First prepare the lower fiber prefabricated body: use 0.1mm thick alumina fiber cloth + 1mm thick quartz fiber mesh tire, perform two-layer superimposed needle punching, and the needle punching density is 20 needles / cm 2 , control density range 0.4-0.5g / cm 3 , forming the lower fiber preform.

[0090] Then continue to tile the 20mm thick quartz fiber mesh tire on the upper surface of the lower fiber prefabricated body, fix it by needle punching, and the needle punching density is 8 needles / cm 2 , control the mesh tire density 0.15g / cm 3 , forming a medium fiber preform.

[0091] Finally, 0.1mm thick quartz fiber cloth + 1mm thick quartz fiber mesh tire is used to lay flat on the surface of the medium fiber prefabricated body, a total of 4 layers are laid, and glass powder + phenolic solution is sprayed on each layer when needling (glass powder: the quality of phenolic solution The ratio is 100:30), and each la...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing a heat insulating material and a heat insulating material prepared by the method. The preparation method includes: (1) Preparation of the anti-scouring fiber matrix: superimposing and needle-punching the first fiber cloth and the first fiber mesh to form a lower fiber prefabricated body; Form the middle fiber prefabricated body on the body; Continue to stack the third fiber cloth and the third fiber mesh tire of at least one layer and needle punching, spray the surface reinforcement material 5-15g / that contains ceramic filler and phenolic binder when each layer of needle punching cm 2 , forming the upper fiber preform; using fibers to sew the lower fiber preform, the middle fiber preform and the upper fiber preform, and obtain the anti-scouring fiber matrix through curing; (2) preparation of ablation composite material precursor; (3 )complex. Due to the presence of the overall structural airgel material, the overall thermal insulation performance of the ablation material is excellent, and due to the presence of ceramic fillers, the surface of the ablation material has high erosion resistance.

Description

technical field [0001] The invention relates to the technical field of heat protection materials, in particular to a method for preparing a heat insulation material and a heat insulation material prepared by the method. Background technique [0002] When a space vehicle flies in the atmosphere, the outer surface of the vehicle is subjected to high heat flow and aerodynamic erosion, and the temperature is as high as 1000-10000°C. In order to ensure the safety of the main structure of the vehicle and the internal equipment, high-efficiency heat insulation materials must be used to prevent the external heat flow from being transmitted to the inside. [0003] Traditional ablation materials (including low-density ablation materials and high-density ablation materials) use phenolic resin, epoxy resin, silicone resin, polytetrafluoroethylene, etc. Composite with FRP honeycomb as filler or reinforcing material. During high heat flow aerodynamic scour, it can play a high-efficiency ...

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): D06M11/79D06M15/41D06M17/04D06M17/00D04H1/4382D04H1/4209
CPCD04H1/4209D04H1/4382D06M11/79D06M15/41D06M17/00D06M17/04
Inventor 苏力军宋寒张丽娟李健裴雨辰
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com