Ultra‐high‐molecular‐weight polyethylene reinforced polypropylene and polyamide composites toward developing low‐noise automobile interior

Sinha, Tridib Kumar; Choi, Kyum Woo; Oh, Jeong Seok

doi:10.1002/app.48720

Cited by 5 publications

(5 citation statements)

References 36 publications

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“…Developing UHMWPE-based blends i. e. introducing low density polyethylene (LDPE), polyamide and poly (ethylene oxide) (PEO) etc. into the UHMWPE matrix, is a viable option to improve the processability [6,7]. But its mechanical properties may be adversely affected when excessive amounts of additives compounds with UHMWPE.…”

Section: Of 11mentioning

confidence: 99%

Fabrication of High Mechanical Properties and Wear: Resistance UHMWPE/PP Composites by Incorporating SiC Nanoparticles under a Consecutive Elongational Flow

Zhang¹,

Cao²,

Chen³

et al. 2023

Preprint

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conclusions. The blends of ultrahigh molecular weight polyethylene/polypropylene (UHMWPE/PP) possess excellent processability, but limited by its reduced mechnical properties. Herein, the high mechanical properties and wear—resistance UHMWPE/PP composites were fabricated by the addition of silicon carbide (SiC) nanoparticles under a consecutive elongational flow without any other additives or solvents. The morphology and thermal properties, mechanical properties, wear resistance as well as scratch resistance of UHMWPE/PP/SiC composites were investigated . The mechanical properties and friction resistance of composites increase initially then decrease with the increase content of SiC. The optimum mechanical properties of UHMWPE/PP/SiC composites are achieved when the content of SiC is 3 phr. In addition, both the hardness and scratch resistance of composites improved upon increasing the content of SiC. These improved mechanical properties and wear resistance originate from the well disperison of SiC nanoparticles along with favourable interfacial adhesive under a consecutive elongational flow.

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Section: Of 11mentioning

confidence: 99%

Fabrication of High Mechanical Properties and Wear: Resistance UHMWPE/PP Composites by Incorporating SiC Nanoparticles under a Consecutive Elongational Flow

Zhang¹,

Cao²,

Chen³

et al. 2023

Preprint

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show abstract

“…Figure 4 presents a quantitative comparison of the impact of the aging time on overall crystallinity, as revealed by XRD (χ XRD ) and DSC (χ DSC ). χ XRD was calculated by dividing the total area of the crystalline peaks by the area of all peaks [37], while χ DSC was obtained using Equations ( 1) and ( 2) [38][39][40]:…”

Section: Thermal and Crystal Evaluationsmentioning

confidence: 99%

“…where χ c,PP and χ c,UHMWPE denote the crystallinities of the PP and UHMWPE phases, respectively. The melting enthalpies of 100% crystalline PP ∆H 0 m, PP and UHMWPE ∆H 0 m,UHMWPE are 167 J/g [38,40] and 293 J/g [39], respectively. ∆H m,PP and ∆H m,UHMWPE are the melting enthalpies of PP and UHMWPE, respectively.…”

Section: Thermal and Crystal Evaluationsmentioning

confidence: 99%

Thermo-Oxidative Aging Effect on Charge Transport in Polypropylene/Ultra-High Molecular Weight Polyethylene Nanocomposites

Ketsamee,

Vryonis,

Vaughan

et al. 2023

Energies

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This study investigates the impact of magnesium oxide (MgO) nanoparticles on the thermo-oxidative aging behavior of blends of polypropylene (PP) and ultra-high molecular weight polyethylene (UHMWPE). The samples, both unfilled and filled with MgO, were aged at 120 °C for varying durations of up to 672 h. The observed structural changes are not monotonic; recrystallization leads to the increased crystallinity and melting temperature of UHMWPE until 336 h. Beyond this, the consumption of the antioxidant leads to chain scission which, in turn, results in decreased crystallinity. The presence of carbonyl groups indicates chemical changes and, as such, the carbonyl index is used as an indicator of aging, with subsequent changes to charge transport. During thermal aging, the interaction between PP and UHMWPE chains at interfaces is enhanced, leading to improved compatibility and the emergence of a new single crystallization peak in PP/UHMWPE blends. Although MgO does not show evidence of elevating the crystallization temperature, implying the absence of enhanced nucleation, it acts as a compatibilizer, improving interfacial interaction compared with the unfilled blend counterparts. MgO hinders the breakage of molecular structures and impedes the diffusion of oxygen. This, in turn, results in nanocomposites filled with MgO having reduced their charge accumulation and conductivity, thus delaying the aging process compared to PP/UHMWPE blends without nanofiller.

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“…[3][4][5][6] These remarkable properties pave the way for the engineering applications of PP, especially in the automotive industry. [7][8][9][10] Besides, these materials have widespread field of applications, from durable goods to electrical-electronic appliances. 11,12 However, the disadvantages such as relatively inadequate mechanical properties, poor thermal and dimensional stability require the reinforcement of pure PP with organic/inorganic fillers.…”

Section: Introductionmentioning

confidence: 99%

Bilayer AA7075-thermoplastic composite structures manufactured by hot pressing: Effect of glass fiber amount of polypropylene composite on mechanical properties

Öztoprak

2023

Journal of Thermoplastic Composite Materials

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This article presents a research into the development of novel Hybrid Laminates (HLs) prepared with the use of hot-pressing method. Two types of HLs are fabricated through the composite coating with different fiber amounts (40 and 50% wt.) of only one surface of 7075-O Al alloy substrate. Effects of the fiber contents of the thermoplastic composite in the hybrid structures are investigated with regards to the tensile and flexural properties. The influence of bending load applied from different surfaces on flexural responses is also evaluated. The tensile test results indicate that the increased fiber ratio slightly affects the failure load of composite layer in the HLs. On the other hand, the flexural strength decreases with the increasing fiber amount in the HLs whether the three-point bending is performed on the Al surface or the composite layer. Scanning electron microscopy (SEM) is used to study the fracture surfaces after the mechanical characterization. From the SEM observations, it has been realized that fiber/matrix debonding is the key failure mechanism during the tensile tests. The failure mode of both HLs is delamination in the PP composite at the tensile side when the bending applied from the Al layer.

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Ultra‐high‐molecular‐weight polyethylene reinforced polypropylene and polyamide composites toward developing low‐noise automobile interior

Cited by 5 publications

References 36 publications

Fabrication of High Mechanical Properties and Wear: Resistance UHMWPE/PP Composites by Incorporating SiC Nanoparticles under a Consecutive Elongational Flow

Fabrication of High Mechanical Properties and Wear: Resistance UHMWPE/PP Composites by Incorporating SiC Nanoparticles under a Consecutive Elongational Flow

Thermo-Oxidative Aging Effect on Charge Transport in Polypropylene/Ultra-High Molecular Weight Polyethylene Nanocomposites

Bilayer AA7075-thermoplastic composite structures manufactured by hot pressing: Effect of glass fiber amount of polypropylene composite on mechanical properties

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