Effect of draw ratio on the mechanical properties of polypropylene self-reinforced composite

Kim, Yoon Sang; Jo, Jun Young; Choi, Woo Hyuk; Song, Jong Man; Jung, Yong Chae; Choi, Sunwoong; Kim, Jae-Woo

doi:10.1016/j.compstruct.2021.114398

Cited by 7 publications

(3 citation statements)

References 37 publications

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“…A detailed explanation was provided regarding the various types of deformations that occurred at different levels of additive inclusion. Polypropylene self-reinforced composite T-Peel test By increasing the draw ratio, the adhesion strength decreased and impact resistance increased [42] Polypropylene sheet, steel sheet, wire mesh Peel and lap shear stress…”

Section: Macro Scale Deformation Analysismentioning

confidence: 99%

Comparative study on the influence of additives on interfacial adhesion strength between fibres and extruded polymer core via peel-off test

Balan,

Aravind Raj

2024

Mater. Res. Express

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Various peel-off experiments can be used to determine the adhesion strength of various fibres. Among them was the "T" type peel-off test, which measures the adhesions between fibres. The use of organic and inorganic fillers in flake or powder form will alter the adhesive properties of the binders as well as the adhesive strength between the fibres. In this study, the adhesion strength between three different varieties of glass fibres (C-Glass, E-Glass, and S-Glass fibres) with a PLA core has been investigated. As a binder, an epoxy resin was used, and the resin was modified with inorganic additives such as alumina, bentonite, and silicon carbide. Peel-off testing was used to examine the effect of additives on the bonding strength between a thermoplastic core and a synthetic fibre. The addition of inorganic compounds was found to reduce the adhesion strength between the fibres and the core. In order to evaluate the initial adhesion between the filaments and the core, nine specimens were fabricated without the addition of any additives and their strengths were determined. Maximum adhesion strength of 71.8 MPa was recorded for the neat resin. The adhesive strength after inclusion of additives was observed to decrease by 18.14%, and recorded maximum peel-off strength of 58.2 MPa. Also, the inclusion percentages of the additives were found to be the most influential factor in determining the composites' adhesive properties. Validation tests were also conducted with the optimized results which demonstrated that the predicted and experimental results were in excellent agreement. Macro and micro approaches were employed to analyze the deformation mechanisms in order to gain a comprehensive understanding of how the additives affected the adhesion strength.

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Section: Macro Scale Deformation Analysismentioning

confidence: 99%

Comparative study on the influence of additives on interfacial adhesion strength between fibres and extruded polymer core via peel-off test

Balan,

Aravind Raj

2024

Mater. Res. Express

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“…In these composites, the matrix phase has the same functionality as in traditional composites, whereas, in the reinforcement phase, polymer molecules are highly aligned to obtain improved mechanical properties. [10][11][12][13][14][15][16] One of the main advantages of SRCs is their excellent reinforcement-matrix interface. Because both the phases belong to the same type of material, they require no further surface treatment nor sizing to ensure an effective fibermatrix interfacial adhesion.…”

Section: Introductionmentioning

confidence: 99%

“…Because both the phases belong to the same type of material, they require no further surface treatment nor sizing to ensure an effective fiber-matrix interfacial adhesion. 12,13 This excellent fiber-matrix interfacial adhesion leads to good stress transfer and better mechanical properties which common polymer blends or conventional composites cannot easily obtain. Moreover, the end-of-life treatment of SRCs is relatively straightforward because they are made of the same type of polymer.…”

Section: Introductionmentioning

confidence: 99%

Development and investigation of nonwoven preforms for self-reinforced polylactic acid composites

Pisupati

Leroy

Thomas

et al. 2023

Journal of Reinforced Plastics and Composites

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This work deals with the development and investigation of self-reinforced polylactic acid (SRPLA) composites manufactured from two different nonwoven preforms with two different bicomponent filament architectures. The SRPLA nonwovens prepared via spun bonding technology have two different bicomponent filament architectures, that is, core-sheath, and islands in the sea. For the core-sheath filaments, spunbound nonwovens are compared with the dry-laid SRPLA nonwovens. The SRPLA nonwoven preforms are compression molded at three different mold temperatures to fabricate composite plates. The optimum mold temperature is identified based on the flexural properties and residual void volume fraction of composites. The flexural modulus and strength are about 38% and 50% higher than those of the pure PolyLactic Acid (PLA) matrix, respectively. The influence of bicomponent filament architecture on the mechanical performance of composites is negligible, whereas the nonwoven architecture leads to significant differences both in the residual void volume fraction and in the mechanical properties of composites. Finally, the mechanical properties of the SRPLA composites are compared with those of the conventional composites to prove their applicability to semi-structural parts.

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Supercritical CO₂ foaming of open‐cell polypropylene/ethylene propylene diene monomer composite foams with oriented cellular structures for water treatment

Huang

et al. 2022

J of Applied Polymer Sci

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Efficient treatment of tiny media in wastewater is a global challenge. Herein, an ingenious design to fabricate the highly open‐cell polypropylene (PP)/ethylene propylene diene monomer (EPDM) composite foams for water treatment by using supercritical CO2 (scCO2) extrusion foaming coupling with post‐stretching is presented. The tensile strain of high melt strength PP is fully utilized in an extensional flow field during foaming. Meanwhile, EPDM is added into PP matrix for obtaining the highly open‐cell and oriented porous structures. Interestingly, a variety of structural transformations (like uniform, hollow and oriented cellular structures) can be achieved during extrusion foaming. Furthermore, the effects of different cellular structures on their selective filtration properties are studied. More interestingly, the as‐prepared composite foam strips, with the highly open‐cell content (~94.4%) and orientation degree (~89.6%), exhibit excellent selective filtration performance, which can successfully remove waste with particle size larger than 1 μm (its filtration efficiency:~ 99.52%). Water droplets can easily pass through the lengthy foam strips in seconds, but tiny particles (like oil droplets or glass microbeads) will be blocked. This work provides a new pathway to prepare highly open‐cell composite foams with anisotropic porous structures for water treatment.

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Effect of draw ratio on the mechanical properties of polypropylene self-reinforced composite

Cited by 7 publications

References 37 publications

Comparative study on the influence of additives on interfacial adhesion strength between fibres and extruded polymer core via peel-off test

Comparative study on the influence of additives on interfacial adhesion strength between fibres and extruded polymer core via peel-off test

Development and investigation of nonwoven preforms for self-reinforced polylactic acid composites

Supercritical CO₂ foaming of open‐cell polypropylene/ethylene propylene diene monomer composite foams with oriented cellular structures for water treatment

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Effect of draw ratio on the mechanical properties of polypropylene self-reinforced composite

Cited by 7 publications

References 37 publications

Comparative study on the influence of additives on interfacial adhesion strength between fibres and extruded polymer core via peel-off test

Comparative study on the influence of additives on interfacial adhesion strength between fibres and extruded polymer core via peel-off test

Development and investigation of nonwoven preforms for self-reinforced polylactic acid composites

Supercritical CO2 foaming of open‐cell polypropylene/ethylene propylene diene monomer composite foams with oriented cellular structures for water treatment

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Product

Resources

About

Supercritical CO₂ foaming of open‐cell polypropylene/ethylene propylene diene monomer composite foams with oriented cellular structures for water treatment