Mechanical properties of tow prepreg applied to AFP using surface-tackiness
- Title
- Mechanical properties of tow prepreg applied to AFP using surface-tackiness
- Author
- 최준명
- Keywords
- Carbon fiber reinforced plastic (CFRP); Automated fiber placement (AFP); Tow prepreg; Toughened epoxy resin; Tackiness
- Issue Date
- 2022-04
- Publisher
- KOREAN FIBER SOC
- Citation
- FIBERS AND POLYMERS; APR 13 2022, 7p.
- Abstract
- This study presents the production of a carbon-fiber composite material using a thermosetting epoxy resin and
Polyether Sulfone (PESU), a thermoplastic toughening agent. A tow prepreg was fabricated using the proposed hightoughness resin, and it was applied to the automated fiber placement (AFP) process. To obtain resin with different viscosities,
different ratios of solid epoxy YD-011 were mixed with the high-toughness resin, which contained liquid epoxy YD-128 and
10 phr of PESU, at certain ratios. The surface-tackiness of each mix of resin was then compared by applying the tow prepreg
that was produced to the AFP process. The results indicate that the resin mix that contained 10 % of solid epoxy was the most
suitable for the AFP process. Subsequently, the mechanical and thermal properties of the resin and tow prepregs using only
the liquid epoxy containing the PESU were compared with the resin and tow prepregs that contained 10 % solid epoxy. The
resin produced by adding 10 % solid epoxy to the liquid epoxy exhibited improvements of 3 % in tensile strength, 16 % in
tensile modulus, and 27 % in impact strength when compared to the resin that used only the liquid epoxy. Furthermore, the
fracture toughness test results using single-edge notched bending and compact tension methods showed a decrease of 10 %
and 16 %, respectively, and the glass transition temperature decreased by 5 %. In the case of the tow prepreg specimen
produced by adding 10 % solid epoxy to the liquid epoxy, it exhibited a decrease of 0.6 % in the 0 ° tensile strength, a
decrease of 1.6 % in tensile modulus, and an increase of 4 % in the 90 ° tensile strength when compared to the tow prepreg
that applied only the liquid epoxy. In addition, the ILSS interfacial strength increased by 1 %, while the double cantilever
beam fracture toughness decreased by 8 %. A comparison of the results showed that the tow prepreg prepared by adding
10 % solid epoxy to the liquid epoxy had excellent mechanical properties, and the tow prepregs were laminated most
appropriately in the AFP process, thus verifying its applicability as a resin in tow prepregs for the AFP process.
- URI
- https://link.springer.com/article/10.1007/s12221-022-4736-5https://repository.hanyang.ac.kr/handle/20.500.11754/170773
- ISSN
- 12299197; 18750052
- DOI
- 10.1007/s12221-022-4736-5
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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