Postprocessing method-induced mechanical properties of carbon fiber-reinforced thermoplastic composites

2020 ◽  
pp. 089270572094537
Author(s):  
Van-Tho Hoang ◽  
Bo-Seong Kwon ◽  
Jung-Won Sung ◽  
Hyeon-Seok Choe ◽  
Se-Woon Oh ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Processing Parameters ◽  
Thermoplastic Composites ◽  
Void Content ◽  
Fiber Reinforced ◽  
Crystallinity Degree ◽  
Automated Fiber Placement ◽  
Carbon Fiber Reinforced

Promising carbon fiber-reinforced thermoplastic (CF/polyetherketoneketone (PEKK)) composites were fabricated by the state-of-the-art technology known as “Automated Fiber Placement.” The mechanical properties of CF/PEKK were evaluated for four different postprocessing methods: in situ consolidation, annealing, vacuum bag only (VBO), and hot press (HP). The evaluation was performed by narrowing down the relevant processing parameters (temperature and layup speed). Furthermore, the void content and crystallinity of CF/PEKK were measured to determine the effect of these postprocessing processes. The HP process resulted in the best quality with the highest interlaminar shear strength, highest crystallinity degree, and lowest void content. The second most effective method was VBO, and annealing also realized an improvement compared with in situ consolidation. The correlation between the postprocessing method and the void content and crystallinity degree was also discussed.

scholarly journals Annealing Effects on the Crystallinity of Carbon Fiber-Reinforced Polyetheretherketone and Polyohenylene Laminate Composites Manufactured by Laser Automatic Tape Placement

2020 ◽  
Vol 26 (3) ◽  
pp. 308-316
Author(s):  
Svetlana RISTESKA ◽  
Anka T. PETKOSKA ◽  
Samoil SAMAK ◽  
Marian DRIENOVSKY
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Carbon Fiber ◽  
Processing Parameters ◽  
Polyphenylene Sulfide ◽  
Thermoplastic Composites ◽  
Void Content ◽  
Angle Of Incidence ◽  
Annealing Step

In situ consolidation of thermoplastic composites by Automated Tape Placement (ATP) is challenging. High quality ATP grade pre-preg material and tape head equipped with an efficient heat sources like lasers offer an opportunity towards high deposition rates and improved mechanical properties of composite materials. In this study uni-directional carbon fiber/ polyphenylene sulfide (UD tape prepreg CF/PPS), carbon fiber/polyetheretherketone (UD tape prepreg CF/PEEK) as well as blend of carbon fiber/polyetheretherketone/polyphenylene sulfide (UD tapes prepregs CF/PEEK/PPS) laminates are compared in terms of their properties after beeing processed by ATP technology. CF/PPS, CF/PEEK and blend CF/PPS/PEEK laminate specimens were processed using in-situ laser-assisted ATP (LATP) process. LATP processing parameters used in this study were chosen based on a preliminary trials; the results provide a basis for refinement of these parameters and prepreg material with an optimal and balanced set of final mechanical properties. This study showed an attempt how to manage the processing parameters for LATP process and to obtain composite materials with tailored properties. The process for production of thermoplastic plates with LATP head in general is a process that is governed by many parameters such as: laser power, angle of incidence, roller pressure and temperature, placement speed, tool temperature, then types of the roller material and the tool material. These parameters are not subject of discussing in this paper; they are kept constant, and the goal of the paper is to manage the crystallinity level within the composite thermoplastic material during annealing step at different temperatures after LATP process. Also, the void content during the production process could be controlled. More particularly, the authors showed that composites based on PPS matrix manufactured with LATP process possess higher flexural strength, with less void content compared to samples based on PEEK matrix. These samples showed also higher crystallinity after annealing step.

Manufacture of Carbon Nanotube-Grafted Carbon Fiber Reinforced Thermoplastic Composites

2015 ◽  
Vol 651-653 ◽  
pp. 405-408
Author(s):  
Min Chang Sung ◽  
Geun Sung Lee ◽  
Seung Yong Lee ◽  
Seong Ik Jeon ◽  
Cheol Hee Ahn ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotube ◽  
Carbon Fiber ◽  
In Situ Polymerization ◽  
Interfacial Properties ◽  
Polymer Nanoparticles ◽  
Thermoplastic Composites ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced

Carbon fiber reinforced composites (CFRCs) have been used in various high-end industries due to their outstanding specific mechanical properties. Recently, carbon nanotube (CNT)-grafted carbon fibers (CFs) made via direct growth has emerged as an advanced and hierarchical reinforcement that can improve the reinforcing effect of CFs in CFRCs. On the other hand, CF reinforced thermoplastic composites (CFRTPs) have attracted much attention because of their quick and mass production capability, e.g., which is important for automotive part manufacturing. Here, we report on the manufacture of CFRTPs using CNT-grafted CFs and their mechanical properties. First, the interfacial shear strength of CNT-grafted CFs with thermoplastic resins was characterized to demonstrate improved interfacial properties due to the CNTs grafted on CFs. Then, the composites were manufactured in two ways; polymer nanoparticles and in-situ polymerization. Polymer nanoparticles were used to improve the interfacial properties due to their small size and good mechanical locking with CF surfaces. In-situ polymerization was also used to manufacture CFRTPs, i.e., monomers with catalyst were transferred into CNT-grafted CF fabric preform using vacuum assisted resin transfer molding and then polymerized into solid matrix. This in-situ polymerization enabled the manufacture of CNT-grafted CF thermoplastic composites by overcoming the difficulties of filling the surface of CNT-grafted CFs with thermoplastic polymers. Finally, the mechanical, thermal, electrical, and damping properties of CNT-grafted CF thermoplastic composites were characterized and compared with their thermoset composites.

scholarly journals Review: Filament Winding and Automated Fiber Placement with In Situ Consolidation for Fiber Reinforced Thermoplastic Polymer Composites

Polymers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1951
Author(s):  
Yi Di Boon ◽  
Sunil Chandrakant Joshi ◽  
Somen Kumar Bhudolia
Keyword(s):  
Processing Parameters ◽  
Filament Winding ◽  
Reference Points ◽  
Thermoplastic Composites ◽  
Manufacturing Processes ◽  
Fiber Reinforced ◽  
Consolidation Process ◽  
Fiber Placement ◽  
Automated Fiber Placement

Fiber reinforced thermoplastic composites are gaining popularity in many industries due to their short consolidation cycles, among other advantages over thermoset-based composites. Computer aided manufacturing processes, such as filament winding and automated fiber placement, have been used conventionally for thermoset-based composites. The automated processes can be adapted to include in situ consolidation for the fabrication of thermoplastic-based composites. In this paper, a detailed literature review on the factors affecting the in situ consolidation process is presented. The models used to study the various aspects of the in situ consolidation process are discussed. The processing parameters that gave good consolidation results in past studies are compiled and highlighted. The parameters can be used as reference points for future studies to further improve the automated manufacturing processes.

Effects of processing parameters on the performance of carbon fiber reinforced polyphenylene sulfide laminates manufactured by laser-assisted automated fiber placement

2021 ◽  
pp. 002199832110558
Author(s):  
Dacheng Zhao ◽  
Jiping Chen ◽  
Haoxuan Zhang ◽  
Weiping Liu ◽  
Guangquan Yue ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Process Parameters ◽  
Compaction Pressure ◽  
Polyphenylene Sulfide ◽  
Void Content ◽  
Fiber Reinforced ◽  
Tool Temperature ◽  
Fiber Placement ◽  
Automated Fiber Placement ◽  
Carbon Fiber Reinforced

In situ consolidation of thermoplastic composites can be realized through laser-assisted automated fiber placement (AFP) technology, and the properties of composites were significant affected by the process parameters. In this work, the effects of process parameters on the properties of continuous carbon fiber–reinforced polyphenylene sulfide (CF/PPS) composites manufactured by laser-assisted AFP were investigated. Four-plies CF/PPS prepreg was laid under the combination of different process parameters and the morphology, void content, crystallinity, and inter-laminar shear strength (ILSS) of the composites were characterized. It turned out that the resin distribution on the surface of the composites could be significantly improved by increasing the laser temperature and compaction pressure. The highest crystallinity of the composites reached 46% at tool temperature of 120°C while the value was only 18% when the tool temperature was 40°C. Meanwhile, with the increasing compaction force ranging of 500–2000 N, the void content of the composites decreased obviously. The ILSS was evaluated through double notch tensile shear test. The results indicated that the mechanical properties of the composites were dominated by void content rather than crystallinity.

Experimental Investigation on the Dynamic Properties and Failure Mode of Carbon Fiber Reinforced Thermoplastic Composites

2014 ◽  
Vol 697 ◽  
pp. 102-108
Author(s):  
Jian Hua Ning
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Strain Rate ◽  
Failure Modes ◽  
Thermoplastic Composites ◽  
Elastic Model ◽  
Strength Increase ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced ◽  
Constitute Model

Owing to the excellent mechanical properties and formability of carbon fiber reinforced thermoplastic composites, this composite has been applied in car industry. The static and dynamic mechanical properties of the composites are investigated under strain-rate from 0.001/s to 50/s. The experimental results show that the elastic model and tensile strength increase with the increase of strain rate, and show that the composite has remarkable rate-hardening effect. A constitute model that including rate-dependent effect is applied to present the strain-stress curve of the composite. The constitute model provides accurate constitute function for finite element analysis of the composite.. The microstructure of the composite is also investigated with scanning electric microscope, and the failure modes are discussed. The investigation provides the basis for engineering application of the composite.

scholarly journals Improvement in Mechanical Properties of Continuous Carbon Fiber Reinforced Thermoplastic Composites by Ozone Oxidation Treatment

Seikei-Kakou ◽  
2015 ◽  
Vol 27 (3) ◽  
pp. 102-108 ◽  
Author(s):  
Hiroyuki Oguma ◽  
Tomoya Kumagai ◽  
Masaru Sano ◽  
Daisuke Sakamoto ◽  
Hiroyuki Inoue ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Thermoplastic Composites ◽  
Fiber Reinforced ◽  
Oxidation Treatment ◽  
Ozone Oxidation ◽  
Continuous Carbon Fiber ◽  
Carbon Fiber Reinforced

Effects of UV Light on Mechanical Properties of Carbon Fiber Reinforced PPS Thermoplastic Composites

2016 ◽  
Vol 365 (1) ◽  
pp. 157-168 ◽  
Author(s):  
Khairul B. Mahat ◽  
Ibrahim Alarifi ◽  
Abdulaziz Alharbi ◽  
Ramazan Asmatulu
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Uv Light ◽  
Thermoplastic Composites ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced

Multi-scale Hybrid In situ Tow Scale Carbon Fiber Reinforced Thermoplastic Strain Sensor

2021 ◽  
pp. 108946
Author(s):  
Hyung Doh Roh ◽  
Beom-Gon Cho ◽  
In-Yong Lee ◽  
Young-Bin Park
Keyword(s):  
Carbon Fiber ◽  
Strain Sensor ◽  
Fiber Reinforced ◽  
Multi Scale ◽  
Carbon Fiber Reinforced
Sign in / Sign up

Export Citation Format

Share Document