Thermoplastic composite material with semi-closed honeycomb sandwich structure and preparation method thereof
A composite material and honeycomb interlayer technology, applied in the field of thermoplastic composite material and its preparation, can solve the problems of limited contact area between honeycomb and bottom plate, unsatisfactory performance of composite material, low production efficiency of thermoplastic honeycomb, etc., and achieves improvement of poor bonding strength and damage Large tolerance and good temperature resistance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0032] The selected materials are: polyphenylene sulfide film, polyphenylene sulfide pellets, glass fiber, carbon fiber unidirectional tape;
[0033] The preparation method of the thermoplastic composite material with a sandwich structure is as follows:
[0034] 1) Preparation of upper and lower layers (first layer, third layer):
[0035] Weigh 50 parts (mass fraction) of polyphenylene sulfide film and 50 parts (mass fraction) of carbon fiber unidirectional tape, lay up and superimpose polyphenylene sulfide film and carbon fiber unidirectional tape, and place them on a flat vulcanizing machine for lamination , the molding pressure is 10MPa, the molding temperature is 320°C, and the molding time is 20min. After cooling, take out the product, which is the laminate of the upper and lower layers;
[0036] 2) Preparation of core layer (second layer):
[0037] ① Preparation of long fiber reinforced pellets
[0038] The polyphenylene sulfide pellets and glass fiber yarn bundles ar...
Embodiment 2
[0047] The selected material is: polyether ether ketone pellets
[0048]The preparation method of the thermoplastic-based resin composite material with a sandwich structure is as follows:
[0049] Pressing polyetheretherketone pellets into polyetheretherketone sheets;
[0050] 1) Preparation of upper and lower cortex
[0051] Cut the polyether ether ketone sheet into 300*300mm size, cut the glass fiber cloth into 300*300mm size, laminate 40 parts (weight) of the sheet and 60 parts (weight) of glass fiber grid cloth on the press Composite to obtain a single-layer composite material sheet; the hot-pressing process conditions are hot-pressing temperature 390°C, hot-pressing pressure 20MPa, and hot-pressing time 300min;
[0052] 2) Preparation of the core layer:
[0053] The polyether ether ketone sheet is placed in a mold and pressed on a press to obtain a core layer. The upper surface of the core layer has a plurality of triangular first grooves, and the lower surface is prov...
Embodiment 3
[0059] The selected material is: polyarylene sulfide sulfone pellets
[0060] The preparation method of the thermoplastic composite material with a sandwich structure is as follows:
[0061] 1) Preparation of upper and lower cortex:
[0062] Add polyarylene sulfide sulfone pellets into the extruder, compound polyarylene sulfide sulfone and carbon fiber grid cloth through the dipping die to obtain polyarylene sulfide sulfone / carbon fiber grid cloth sheet; each section of the extruder The temperature setting is 260°C, 280°C, 310°C, 320°C, 325°C, 325°C, 325°C, 325°C, 325°C, 320°C; the main feeding rate is 30rpm, the host speed is 140rpm, and the traction rate is 20rpm;
[0063] 2) Preparation of the core layer:
[0064] Add polyarylene sulfide sulfone pellets into an injection molding machine, and inject to obtain a core layer. The upper surface of the core layer has a plurality of rectangular first grooves, and the lower surface is provided with a plurality of rectangular seco...
PUM
| Property | Measurement | Unit |
|---|---|---|
| density | aaaaa | aaaaa |
| density | aaaaa | aaaaa |
| density | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More