Advanced short fiber composites with hybrid reinforcement and selective fiber-matrix-adhesion based on polypropylene – Characterization of mechanical properties and fiber orientation using high-resolution X-ray tomography

Kahl, Christian; Feldmann, Markus; Sälzer, P.; Heim, Hans-Peter

doi:10.1016/j.compositesa.2018.05.014

Cited by 34 publications

(30 citation statements)

References 28 publications

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“…e interfacial bonding strength determines the stress transfer between the reinforcing fiber and matrix and is recognized as the key factor in the global mechanical performance of composites [10,12,32,33]. To estimate the interfacial bonding strength of GFRPP composites under different mold cavity surface temperatures, the DMA test is employed [34].…”

Section: Effect Of Rhcm Process On Fiber-matrix Bonding Strength Of Gmentioning

confidence: 99%

“…It is well known that the macroscopic performance of the product is substantially dependent on its microstructure [6][7][8]. In the past, considerable efforts have been devoted to adapt the microstructures of GFRPP products and improve their macroscopic performance [9][10][11][12][13][14][15]. It is presumed that the mechanical properties of GFRPP products significantly depend on the combined effects of glass fiber orientation and distribution, fiber-matrix interface bonding strength conditions, and state of matrix crystallization, while some surface defects, such as flow marks, floating fibers, weld lines, and jetting marks cannot be avoided through the CIM process [16,17].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Microstructure, Tensile Property, and Surface Quality of Glass Fiber-Reinforced Polypropylene Parts Molded by Rapid Heat Cycle Molding

Liu

et al. 2020

Advances in Polymer Technology

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The microstructure of a molded product considerably influences its macroscopic properties. In this study, the influence of molding process on microstructure, tensile property, and surface quality was explored on the glass fiber-reinforced polypropylene (GFRPP) parts molded by rapid heat cycle molding (RHCM) and conversion injection molding (CIM). Tensile strength and surface gloss were chosen to measure macroscopic properties of the molded parts. The microstructure including multilayer, fiber orientation, crystallinity, and fiber-matrix bonding strength were analyzed by simulations, scanning electron microscopy, wide-angle X-ray diffraction, and dynamic mechanical analysis. The relationship between the macroscopic properties and microstructure of the RHCM samples was also discussed. The results indicate that as the mold cavity surface temperature increases, the tensile strength increases firstly and decreases thereafter. The tensile strength of RHCM parts reached the maximum at the mold heating temperature of 60°C. It is also observed that the surface gloss of the sample increases as the mold cavity surface temperature rises, and the increase of surface gloss decreases distinctly with the mold heating temperature higher than 90°C.

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Section: Effect Of Rhcm Process On Fiber-matrix Bonding Strength Of Gmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microstructure, Tensile Property, and Surface Quality of Glass Fiber-Reinforced Polypropylene Parts Molded by Rapid Heat Cycle Molding

Liu

et al. 2020

Advances in Polymer Technology

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“…For a good transmission of stress from the matrix to the fiber to occur, the bond existing among the two components must be strong [64]. Due to the hydrophilic nature of the natural fibers, the interaction between the fibers and the hydrophobic polymer matrix is very weak [4,78,79]. Hence, the need to modify the fibers and introduce organic moiety that makes them more hydrophobic is necessary.…”

Section: Fiber-matrix Adhesionmentioning

confidence: 99%

“…In recent times, the application of natural fiber polymer composites (NFPCs) for structural purposes has increased [1][2][3][4][5][6][7]. In the past, carbon fibers and basalt fibers reinforced polymer composites were commonly used due to their high performance to cost and high strength to weight ratios [8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Improving the Mechanical Properties of Natural Fiber Composites for Structural and Biomedical Applications

Shesan¹,

Stephen²,

Chioma³

et al. 2019

Renewable and Sustainable Composites

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Natural fiber composites are designed for different purposes including structural and non-structural ones. These natural fiber composites vary greatly in their properties including mechanical properties. Mechanical properties which include the tensile and flexural properties are highly dependent on factors such as matrix type, filler type, processing, post processing treatment and many more, factors which are quite application specific. However, many research works develop their natural fiber composite before considering the possible applications. This chapter intends to X-ray the factors that affect the mechanical properties as it relates to structural and biomedical applications and suggest ways of improving the mechanical properties.

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“…A higher cellulose fiber content in the hybrid composite decreases the orientation of both fibers. Besides, short fibers tend to align following flow direction much more than longer ones [51]. There are some other examples of works in which fiber interactions govern the morphology of hybrid injected pieces.…”

Section: Injected Pp Hybridsmentioning

confidence: 99%

Polypropylene Blends and Composite: Processing-Morphology-Performance Relationship of Injected Pieces

Costantino¹,

Rosales²,

Pettarín³

2020

Polypropylene - Polymerization and Characterization of Mechanical and Thermal Properties

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Polypropylene (PP) is a low-cost plastic commodity, which currently is in a transition zone between massive use and engineering applications due mainly to its limited mechanical properties, such as low tensile and impact resistance. That is the reason why PP is usually modified with additives and particles to improve its mechanical and thermal performance and thus meet the requirements demanded by engineering applications. Besides, PP composites are suitable materials to be processed by a simple, fast, automatic, and massive technique such as injection molding. This makes PP composites attractive for several applications. However, it is important to keep in mind that PP composites' performance depends not only on their intrinsic properties but also on processing conditions. This chapter will summarize the relationship between processing and performance of several PP composite-micro, nano, and hybrid-injected parts with the aim of generating a bridge between technologic knowledge and scientist knowledge.

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Advanced short fiber composites with hybrid reinforcement and selective fiber-matrix-adhesion based on polypropylene – Characterization of mechanical properties and fiber orientation using high-resolution X-ray tomography

Cited by 34 publications

References 28 publications

Microstructure, Tensile Property, and Surface Quality of Glass Fiber-Reinforced Polypropylene Parts Molded by Rapid Heat Cycle Molding

Microstructure, Tensile Property, and Surface Quality of Glass Fiber-Reinforced Polypropylene Parts Molded by Rapid Heat Cycle Molding

Improving the Mechanical Properties of Natural Fiber Composites for Structural and Biomedical Applications

Polypropylene Blends and Composite: Processing-Morphology-Performance Relationship of Injected Pieces

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