Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Polyphenylene sulfide (PPS) resin composite material used for aircraft hoods and preparation method of composite material

A technology of polyphenylene sulfide resin and composite materials, which is applied in the field of polymer materials, can solve the problems of poor toughness and high brittleness, and achieve the effects of low elongation, low impact strength and low density

Active Publication Date: 2014-07-30
CHENGDU AEROSPACE JINGCHENG SCI & TECH CO LTD
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be blended with many polymer materials, and can be processed by general thermoplastic processing methods, such as injection molding, extrusion and pressing. Its disadvantages are poor toughness and high brittleness.

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
  • Polyphenylene sulfide (PPS) resin composite material used for aircraft hoods and preparation method of composite material
  • Polyphenylene sulfide (PPS) resin composite material used for aircraft hoods and preparation method of composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The formula is composed according to the following weight percentages: 35% of injection-grade polyphenylene sulfide resin, 35% of polyphenylene sulfide low-molecular resin, 20% of high-silica fiber, 8% of calcium sulfate whisker, and 2% of 5000-mesh ultrafine talcum powder.

[0027] Place the injection-grade polyphenylene sulfide resin and polyphenylene sulfide low-molecular-weight resin in a vacuum oven at 135°C to dry for 4 hours, and then accurately weigh the injection-grade polyphenylene sulfide resin and polyphenylene sulfide low-molecular weight resin according to the ratio. Add resin, calcium sulfate whiskers, and 5000-mesh ultrafine talc powder into a high-speed mixer and mix thoroughly for 10 minutes.

[0028] Put the uniformly mixed materials into the hopper of the co-rotating intermeshing twin-screw extruder, and add the high-silica fiber accurately weighed according to the ratio from the downstream feed port, and set the extruder from the hopper to the die. ...

Embodiment 2

[0032] The formula is composed according to the following weight percentages: 38% of injection molding grade polyphenylene sulfide resin, 30% of polyphenylene sulfide low-molecular resin, 23% of high silica fiber, 6% of calcium sulfate whisker, and 3% of 5000-mesh ultrafine talcum powder.

[0033] Place the injection-grade polyphenylene sulfide resin and polyphenylene sulfide low-molecular resin in a vacuum oven at 135°C to dry for 5 hours, and then accurately weigh the injection-grade polyphenylene sulfide resin and polyphenylene sulfide low-molecular weight resin according to the ratio. Add resin, calcium sulfate whiskers, and 5000-mesh ultra-fine talc powder into a high-speed mixer and mix thoroughly for 15 minutes.

[0034] Put the uniformly mixed materials into the hopper of the co-rotating intermeshing twin-screw extruder, and add the high-silica fiber accurately weighed according to the ratio from the downstream feed port, and set the extruder from the hopper to the die....

Embodiment 3

[0038] The formula is composed according to the following weight percentages: 40% of injection molding grade polyphenylene sulfide resin, 23% of polyphenylene sulfide low-molecular resin, 27% of high silica fiber, 8% of calcium sulfate whiskers, and 2% of 5000-mesh ultrafine talcum powder.

[0039] Place the injection-grade polyphenylene sulfide resin and polyphenylene sulfide low-molecular resin in a vacuum oven at 140°C to dry for 4 hours, and then accurately weigh the injection-grade polyphenylene sulfide resin and polyphenylene sulfide low-molecular weight resin according to the ratio. Add resin, calcium sulfate whiskers, and 5000-mesh ultra-fine talc powder into a high-speed mixer and mix thoroughly for 15 minutes.

[0040] Put the uniformly mixed materials into the hopper of the co-rotating intermeshing twin-screw extruder, and add the high-silica fiber accurately weighed according to the ratio from the downstream feed port, and set the extruder from the hopper to the die...

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
densityaaaaaaaaaa
melting pointaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention relates to a polymer material and discloses a polyphenylene sulfide (PPS) resin composite material used for aircraft hoods. The PPS resin is modified by utilizing high silica fibers to improve the performances of the PPS resin composite material. The PPS resin composite material for aircraft hoods comprises the following components by weight percent: 33-58% of PPS resin, 12-36% of PPS low molecular weight resin, 18-43% of high silica fibers, 4-15% of calcium sulfate whiskers and 1-8% of talcum powder. The invention simultaneously discloses a preparation method of the composite material. The composite material can serve as a forming material of shields and fairings of various aircraft heads, meets relevant technical requirements of the aircraft hoods and has excellent high temperature, corrosion, radiation and aging resistance and flame retardance.

Description

technical field [0001] The invention relates to a polymer material, in particular to a polyphenylene sulfide resin composite material used for molding an aircraft head cover and a preparation method thereof. Background technique [0002] The aircraft hood is installed on the outside of the aircraft to improve the aerodynamic characteristics of the aircraft when it is flying in the air, and to prevent the impact of aerodynamic noise, aerodynamic load, thermal load, etc. on the aircraft head detection system. It must be broken and fallen off in time, so as not to affect the running attitude of the aircraft in water. [0003] The aircraft hood is usually a conical rotating thin-walled shell formed by a function curve. Due to the flight in the air, the aircraft hood needs to be limited in weight, and most of the molding materials are composite materials with low density. This type of composite material must have specific mechanical properties: moderate strength, able to withsta...

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 Applications(China)
IPC IPC(8): C08L81/02C08K7/08C08K3/34C08K7/10B29C47/92B29C48/92
CPCB29B7/46B29B7/72B29B7/7461B29B7/90B29B9/06B29B9/12B29B9/14B29C48/40B29C48/92B29C2948/9259B29C2948/92704
Inventor 周京平李庭安李金东陈勇
Owner CHENGDU AEROSPACE JINGCHENG SCI & TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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