Study on dynamic mechanical, thermal, and mechanical properties of long glass fiber reinforced thermoplastic polyurethane/poly(butylene terephthalate) composites

Zhang, Daohai; He, Min; Qin, Shuhao; Yu, Jianxing; Guo, Jianbing; Xu, Guoce

doi:10.1002/pc.23902

Cited by 15 publications

(12 citation statements)

References 36 publications

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“…Improving the properties linked with impacts makes resistance to flexion and storage modulus worse. Zhang et al [28] ran tests with thermoplastic polyurethane (TPU). Dynamic mechanical analysis (DMA) indicated that the addition of TPU increases tensile and notched Izod impact strength with a small reduction in flexural strength and modulus.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Moduli of Polybutylene Terephthalate Glass Fiber Reinforced in High-Temperature Environments

et al. 2021

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The aim of this work was to show the evolution over time of the dynamic moduli in components made of Polybutylene Terephthalate reinforced with glass fiber when they are held to temperatures close to the glass transition temperature over time. For this purpose, PBT samples reinforced with short, glass fibers of Ultradur® material with 0%, 20%, and 50% in weight content were tested. Dynamic moduli showed an increment with glass fiber content showing a nonlinear behavior with the temperature. The evolution of storage modulus was depicted by means of a modified law of mixtures with an effectiveness factor depending on temperature and fiber content, whereas the evolution over time was obtained with a time–temperature transformation generated with the TTS Data Analysis software of TA-instruments for a given temperature. Storage modulus showed a linear relationship with glass fiber content when components were held to temperatures near to their respective glass transition temperature, obtained from the maximum of loss modulus curve with temperature. In summary, the value and evolution of dynamic moduli of PBT samples improved with glass fiber content, allowing us to increase the durability of components when they are submitted to high-temperature environments.

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Section: Introductionmentioning

confidence: 99%

Dynamic Moduli of Polybutylene Terephthalate Glass Fiber Reinforced in High-Temperature Environments

et al. 2021

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“…1,2 To improve mechanical and thermal properties, glass fiber is the most widely used reinforcing material in PBT and its blends. 3–21…”

Section: Introductionmentioning

confidence: 99%

The mechanical and thermal properties of chopped basalt fiber-reinforced poly (butylene terephthalate) composites: Effect of fiber amount and length

Arslan

Doğan

2019

Journal of Composite Materials

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In this study, the effects of basalt fiber (BF) amount and initial fiber length on tensile, flexural and impact properties of poly (butylene terephthalate) (PBT)-based composites are studied. The effect of BF amount on thermomechanical and thermal properties of the composites is also investigated using dynamic mechanical analysis, differential scanning calorimeter and thermal gravimetric analysis. The BF is used at concentrations of 5, 10, 20 and 30 wt% and with different initial lengths of 3, 6 and 12 mm under constant loading of BF (20 wt%). According to the test results, the addition of BF improves the tensile strength and thermal stability of PBT at 20 and 30 wt% loading. Flexural strength and elastic modulus increase steadily as the added amount of BF increases. The addition of BF favors crystallization up to 10 wt% loading. No remarkable effect of initial fiber length is observed on the mechanical properties of the composites.

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“…This trend is caused by the physical combination between fibers and the polymer melt, indicating that the presence of TPU constrains the displacement of carbon fiber tows during the tensile process, enhancing the strain and improving energy absorption. [25][26][27][28] Furthermore, the control group (without the TPU sheath) exhibits one-time breakage followed by brittleness breakage. The TPU sheath ensures the experimental groups undergoing two-stage fractures, which are separately attributed to the carbon fiber tows that provide mechanical support and the TPU sheath that offers ductility.…”

Section: Resultsmentioning

confidence: 99%

Combination and development of carbon filament tows: Application of coextrusion with long fiber‐reinforced thermoplastics

Lin

Bao

2021

Polymer Composites

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In this study, long fiber-reinforced thermoplastics (LFT) and coextrusion are applied to wrap carbon fiber tows in a thermoplastic polyurethane (TPU) outer layer. In this way, the proposed wrapped yarns have a sheath-core structure.Scanning electron microscopy observation reveals that TPU and carbon fiber tows form a physical combination that allows TPU to further enhance the tensile strength of carbon fiber tows by 35.87%, which is 19.62 ± 1.88 MPa. The tensile strain of carbon fiber tows also improves. LFT and coextrusion are performed to produce successive carbon fiber tows that can be successfully fabricated into textiles, possessing good fabric flexibility. The technique of carbon fiber tows can be applied to mass production feasibility for the field of carbon fiber composites.

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Study on dynamic mechanical, thermal, and mechanical properties of long glass fiber reinforced thermoplastic polyurethane/poly(butylene terephthalate) composites

Cited by 15 publications

References 36 publications

Dynamic Moduli of Polybutylene Terephthalate Glass Fiber Reinforced in High-Temperature Environments

Dynamic Moduli of Polybutylene Terephthalate Glass Fiber Reinforced in High-Temperature Environments

The mechanical and thermal properties of chopped basalt fiber-reinforced poly (butylene terephthalate) composites: Effect of fiber amount and length

Combination and development of carbon filament tows: Application of coextrusion with long fiber‐reinforced thermoplastics

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