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

Enhancement ablation thermal protection composite material and preparation method thereof

A composite material, heat-proof technology, applied in flat products, other household appliances, textiles, etc., can solve the problems of large ablation, large thermal diffusivity, etc., and achieve the effect of good strength

Active Publication Date: 2007-07-04
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
View PDF0 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some occasions where the environmental conditions are relatively high and the use time is long, the currently used materials either have too much ablation, or the thermal diffusivity is too large, which cannot meet the requirements at the same time

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
  • Enhancement ablation thermal protection composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Product name: high temperature heat insulation board

[0044] Dimensions: 500×500×10

[0045] The implementation steps are as follows:

[0046] (1) Use pure sulfonamide fiber yarn to weave the fabric, the yarn linear density is 75tex, the twist is 200 twists / m, the fabric structure is plain weave, the cloth thickness is 0.25mm, and the width is 1.0m.

[0047] (2) impregnating the thermosetting barium phenolic resin solution, the resin content of the tape is controlled to be 49±4%, and the volatile matter is controlled to be 4-8%.

[0048] (3) Cut out 40 sheets of 500×500 tape, align the edges of each sheet and stack them together, lay a layer of release cloth on the top and bottom, and put them into a hot press.

[0049] (4) After the contact pressure is applied, the temperature of the press is raised, and the heating rate is controlled at 30°C / h, and the temperature is kept at 95°C for 45 minutes, and then pressurized at 8 MPa, and then the temperature is raised to 1...

Embodiment 2

[0053] Product name: Cylinder heat insulation sleeve

[0054]Dimensions: inner diameter Φ600, thickness 5mm, length 1000mm.

[0055] The implementation steps are as follows:

[0056] (1) Select the mixed fabric of sulfonamide fiber and glass fiber. The linear density of sulfonamide yarn is 75tex, the twist is 200 twist / m; the linear density of glass fiber is 72tex, the twist is 55 twist / m. mm, the width is 1.0m.

[0057] (2) impregnated with thermosetting barium phenolic resin solution, the resin content of the tape is controlled to be 41±4%, and the volatile matter is controlled to be 4-8%. Cut the tape into a 50mm wide tape along the warp direction, and pour it into a disk.

[0058] (3) Use a cloth tape winding machine to wind in parallel on the Φ600 mold tire. Control the winding tension at 10-20kgf, the temperature at 60-130°C, the trolley moves forward 10mm every time the main shaft rotates, and the winding is repeated 5 times.

[0059] (4) Cover the surface of the ...

Embodiment 3

[0063] Product Name: Ablation-proof and heat-insulating taper sleeve

[0064] Dimensions: The inner diameter of the small end is Φ260, the inner diameter of the large end is Φ600, the thickness is 12mm, and the length is 1200mm.

[0065] The implementation steps are as follows:

[0066] (1) Select the mixed fabric of sulfonamide fiber and quartz fiber. The linear density of sulfonamide yarn is 75tex, the twist is 200 twist / m; the linear density of quartz fiber is 85tex, the twist is 50 twist / m. mm, the width is 1.1m.

[0067] (2) Immerse the thermosetting aminophenol-formaldehyde resin solution, the resin content of the tape is controlled to be 45±4%, and the volatile matter is controlled to be 4-8%. Cut the adhesive tape obliquely at 45° to the warp direction into strips with a width of 70 mm, stitch and overlap to form a continuous long adhesive tape, and then pour it into a disk.

[0068] (3) Use a cloth tape winding machine to wind and form the tapered tire obliquely, ...

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
Linear densityaaaaaaaaaa
Breaking strengthaaaaaaaaaa
Breaking strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a thermal protective composite with enhancing ablation and the manufacturing method. It is the novel heat insulation composite, whose manufacturing technology is that PSA fabric cloth or / and Si-based fiber mixed weaved cloth is dipped in phenolic resin and is solidified to mould. The composite in invention is widely applied in the structuring with heat insulation and protection and is provided with better intensity, stability of dimension and machining technology. It breaks through the demand that prior material can not be ablated for a long time and can not insulate heat. It finds a better solved path for realizing integration of ablative heat protection and heat insulation of material.

Description

technical field [0001] The invention relates to a composite material with low heat conduction and anti-high temperature air scour function and a manufacturing method thereof, especially to an ablation and heat-resistant composite material reinforced with polysulfone fiber and silicon-based fiber mixed cloth and a processing method thereof. Background technique [0002] In the case of high temperature and high-speed airflow, a kind of ablation and heat-resistant composite material is generally used on the surface of the structure. The chemical change consumes a lot of heat energy with its own mass, preventing heat from entering the internal structure, so as to achieve the purpose of heat protection and heat insulation. For example, when a manned spacecraft returns to the atmosphere, there will be severe friction with the air, and the surface temperature of the spacecraft must reach above 1000°C. When re-entry, it undergoes ablation to take away heat and blocks the heat from ...

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
IPC IPC(8): D03D15/00D06N3/00D06M15/41B29D7/01B29D23/00D03D15/242D03D15/267D03D15/283D03D15/513D03D15/52
Inventor 匡松连尚龙华小玲伍顺荣李健张琳
Owner AEROSPACE RES INST OF MATERIAL & 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