Obtaining high-strength carbon fiber based on polyphenylene sulfide by ATL method with laser heating

The method of manufacturing high-strength structural carbon fiber from toupreg based on PPS-214 grade polyphenylene sulfide (Fortron, Germany) and AS4 high-strength carbon fiber (Hexcel, USA) using a promising ATL-technology (Automated Tape Laying) with laser heating is considered. The technology was adapted for the material under study, laboratory models in the form of plates were made, physical and mechanical tests of laboratory samples were carried out. The quality of the binder distribution and the presence of defects were assessed by raster electron microscopy. The influence of the reinforcement, pressing and vacuum heat treatment schemes on improving the mechanical properties of the studied carbon fiber was investigated. It has been found that the samples subjected to vacuum heat treatment have higher mechanical properties due to an increase in the adhesion of the toupreg tapes to each other and the removal of discontinuities formed during the calculation. The value of the ultimate strength at interlayer shear of samples made using a parallel-diagonal scheme increases by 108%, at bending by 370% and by 65% at compression.

By processing the toupregs by the ATL with laser heating and subsequent thermal treatment of the products, it is possible to obtain high-strength structural materials with improved physical and mechanical properties, as well as high repeatability and equality of properties throughout the area of the products, even using complex reinforcement schemes.

1. Bataev, A.A., Bataev, V.A., Kompozitsionnye materialy: stroenie, poluchenie, primenenie [Composite materials: structure, preparation, application], Moscow: Logos, 2006.

2. Bakhareva , V.E., Gorynin , I.V., (Ed.), Sovremennye mashinostroitelnye materialy. Nemetallicheskie materialy [Modern engineering materials Non-metallic materials]: reference book, St Petersburg: Professional, 2014, pp. 79–133.

3. Mikhailin, Y.A., Termoustoichivye polimery i polimernye materialy [Heat-resistant polymers and polymeric materials], St Petersburg: Professiya, 2006, pp. 326–329.

4. Ho, K.K.C., Shamsuddin , S.-R., Riaz, S., Lamorinere, S., Wet impregnation as route to unidi-rectional carbon fibre reinforced thermoplastic composites manufacturing, Plastics, Rubber and Composites, 2011, No 2, V. 40, pp. 102–103.

5. Jens, K., Guglielmo, H., Manufacture of high performance fibre-reinforced thermoplastics by aqueous powder impregnation, Composites Manufacturing, No. 3, 1993, pp. 123–132.

6. Yan, Y., Developments in fibers for technical nonwovens, Advances in Technical Nonwovens, 2016, pp. 19–96. URL: http/www.sciencedirect.com/article/pii/B9780081005750000024 (reference date 22/02/2022).

7. Salamov, A.H., Polifenilenpolisulfid: svoistva, poluchenie i primenenie [Polyphenylenepolysulfide: properties, preparation and application], Kronos: estestvennye i tekhnicheskie nauki, 2019, pp. 43–44.

8. Di Francesco, M., Giddings, P. F., Scott, M., Goodman, E., Dell’Anno, G., Potter, K., Influence of laser power density on the mesostructure of thermoplastic composite preforms manufactured by Automated Fibre Placement, International SAMPE Technical Conference, 2016, pp. 1–13.

9. Perepelkin , K.E., Armiruyushchie volokna i voloknistye polimernye kompozity [Reinforcing fibers and fibrous polymer composites], St Petersburg: Nauchnye osnovy i tekhnologii, 2009.