Ultra-high-speed processing of nanomaterial-reinforced woven carbon fiber/polyamide 6 composites using reactive thermoplastic resin transfer molding

Kim, Byeong‐Joo; Cha, Sang-Hyup; Park, Hyung Wook

doi:10.1016/j.compositesb.2018.02.002

Cited by 42 publications

(19 citation statements)

References 43 publications

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“…Modeling of polymerization kinetics at different heating rates : The non-isothermal kinetics of caprolactam activated anionic polymerization in bulk is known to be described by an Arrhenius type autocatalytic model [ 19 , 20 ]:

where A 0 is the pre-exponential factor, E is the activation energy, n is the order of the reaction order, B 0 is the autocatalytic factor, and α is the degree of conversion.…”

Section: Resultsmentioning

confidence: 99%

“…The non-isothermal kinetics of caprolactam activated anionic polymerization in bulk is known to be described by an Arrhenius type autocatalytic model [19,20]:…”

Section: Modeling Of Polymerization Kinetics At Different Heating Ratesmentioning

confidence: 99%

“…Meanwhile, the evaluation of mechanical properties for PA6 is a critical aspect in anionic polymerization. Therefore, extensive research has been conducted for the evaluation of material properties [12][13][14][15][16][17][18][19][20]. For instance, Meng et al [12] investigated polyamide-6/graphite nanoflake (PA6/GnF) composites to obtain high thermal conductivity through a one-step in situ intercalation polymerization process.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Temperature on the Mechanical Properties and Polymerization Kinetics of Polyamide-6 Composites

Lee

et al. 2020

Polymers

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This work reports the preparation of carbon fiber reinforced thermoplastic composites via the in situ anionic ring opening polymerization of ε-caprolactam. Vacuum assisted resin transfer molding was used to fabricate polyamide-6/carbon fiber composites at different molding temperatures. As a result, the higher polymerization of ε-caprolactam was observed with the condition at 140 °C for satisfactory impregnation. Regarding molding temperature, the physical properties of polyamide-6/carbon fiber were observed that the bending and impact strengths at 140 °C were higher than those to at other molding temperatures. The polymerization kinetics of polyamide-6 was analyzed using differential scanning calorimetry by experimentally acquiring kinetic parameters according to model fitting approaches. Polymerization and crystallization, which occur simultaneously throughout the whole process, were separated using Gaussian and Maxwell–Boltzmann distributions to study polymerization kinetics. The result of the developed model was in good agreement with the experimental data for the presented first order autocatalytic reaction model.

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where A 0 is the pre-exponential factor, E is the activation energy, n is the order of the reaction order, B 0 is the autocatalytic factor, and α is the degree of conversion.…”

Section: Resultsmentioning

confidence: 99%

“…The non-isothermal kinetics of caprolactam activated anionic polymerization in bulk is known to be described by an Arrhenius type autocatalytic model [19,20]:…”

Section: Modeling Of Polymerization Kinetics At Different Heating Ratesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Temperature on the Mechanical Properties and Polymerization Kinetics of Polyamide-6 Composites

Lee

et al. 2020

Polymers

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“…Fiber-reinforced thermoplastic composites have attracted more and more attention in various fields, particularly in the automotive industry, due to their manufacturing flexibility and recyclability [1,2]. Long fiber-reinforced thermoplastic composites have been applied to seatback frames and battery storage for hybrid vehicles [3]. As for structural applications requiring improved physical properties, continuous fiber reinforcements are necessary.…”

Section: Introductionmentioning

confidence: 99%

Thermoplastic Reaction Injection Pultrusion for Continuous Glass Fiber-Reinforced Polyamide-6 Composites

et al. 2019

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In this paper, glass fiber-reinforced polyamide-6 (PA-6) composites with up to 70 wt% fiber contents were successfully manufactured using a pultrusion process, utilizing the anionic polymerization of caprolactam (a monomer of PA-6). A novel thermoplastic reaction injection pultrusion test line was developed with a specifically designed injection chamber to achieve complete impregnation of fiber bundles and high speed pultrusion. Process parameters like temperature of injection chamber, temperature of pultrusion die, and pultrusion speed were studied and optimized. The effects of die temperature on the crystallinity, melting point, and mechanical properties of the pultruded composites were also evaluated. The pultruded composites exhibited the highest flexural strength and flexural modulus, reaching 1061 MPa and 38,384 MPa, respectively. Then, effects of fiber contents on the density, heat distortion temperature, and mechanical properties of the composites were analyzed. The scanning electron microscope analysis showed the great interfacial adhesion between fibers and matrix at 180 °C, which greatly improved the mechanical properties of the composites. The thermoplastic reaction injection pultrusion in this paper provided an alternative for the preparation of thermoplastic composites with high fiber content.

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“…Thermosetting resins used for composite structures require specific properties if they are to succeed as matrix materials in high‐performance applications. To be used widely in high‐tech applications, a resin must be thermoxidatively stable under the operating temperatures to limit the evolution of volatile compounds, while also possessing good processability for practical application and production (e.g., resin transfer molding [RTM] or winding process) …”

Section: Introductionmentioning

confidence: 99%

Star‐shaped silicon‐containing arylacetylene resin based on a one‐pot synthesis using zinc powder catalysis with improved processing and thermal properties

Huang

Deng

Liu

2019

J of Applied Polymer Sci

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Herein, reporting a simple, sustainable, and cost-effective chemical synthesis of a star-shaped silicon-containing arylacetylene (SSA) resin via a one-pot process using zinc powder as a catalyst. The as-prepared viscous liquid resins exhibited moderate rheological behavior. The thermal curing temperature was determined to be 203 C using differential scanning calorimetry, which is much lower than that reported for polyimide and phthalonitrile (>300 C), indicating the SSA resins are suitable for processing at a lower temperature. Thermogravimetric analysis also revealed the excellent thermal stability and extremely high carbon residue of the cured SSA resin (the temperature at 5% mass loss and residual yield at 800 C under N 2 were 654 C and 93%, respectively). The results showed the excellent processability and thermal stability of SSA resin.

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Ultra-high-speed processing of nanomaterial-reinforced woven carbon fiber/polyamide 6 composites using reactive thermoplastic resin transfer molding

Cited by 42 publications

References 43 publications

Effect of Temperature on the Mechanical Properties and Polymerization Kinetics of Polyamide-6 Composites

Effect of Temperature on the Mechanical Properties and Polymerization Kinetics of Polyamide-6 Composites

Thermoplastic Reaction Injection Pultrusion for Continuous Glass Fiber-Reinforced Polyamide-6 Composites

Star‐shaped silicon‐containing arylacetylene resin based on a one‐pot synthesis using zinc powder catalysis with improved processing and thermal properties

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