Polypropylene composites obtained from self‐reinforced hybrid fiber system

Andrzejewski, Jacek; Tutak, Nicole; Szostak, Marek

doi:10.1002/app.43283

Cited by 27 publications

(13 citation statements)

References 41 publications

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“…Use of different recyclable and renewable reinforcement materials are encouraged such as plant leaves, crop, husk, jute, flax, kenaf, wood dust, and bamboo dust, etc, in spite of many efforts towards applying renewable and biodegradable polymer for industrial use, there is serious limitation identified in the thermomechanical properties. Since the last few years, most of the composite materials have been developed from natural and synthetic fibers [6,7]. The major benefits of natural fiber over synthetic fiber are eco-friendly, biodegradable, plentifully availability etc Meanwhile, there are few shortfalls found such as higher hydrophilicity nature due to the existence of hydroxyl groups, miserable compatibility with epoxy matrix, homogeneous distribution etc But, the low price of natural filler/fiber and performance ratio at low weight in combination with environmental friendly nature become the major factor for the social acceptance of natural fibers in a huge volume in the research and material development area such as automobile, decorative and building construction [8].…”

Section: Introductionmentioning

confidence: 99%

Thermomechanical behavior of graphene nanoplatelets and bamboo micro filler incorporated epoxy hybrid composites

Gouda¹,

Bhowmik²,

Das³

2020

Mater. Res. Express

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The present study is focused on the development of micro bamboo filler/epoxy hybrid composite with the incorporation of varied weight percentage of graphene nanoplatelet (GNPs). To check the effect of inclusion of dual fillers on the structural x-ray diffraction (XRD), morphological analysis by Scanning electron microscope (SEM) and thermomechanical analysis (TMA) are carried out. The micro bamboo and GNPs filler in the epoxy polymer are incorporated to eradicate the problem associated with natural and synthetic fibers alignment, delamination, and anisotropic property in the thermoset composite materials. Results revealed that with the inclusion of graphene nanoplatelet with bamboo filler in epoxy composite improves the synergetic effect, which in turn increases the tensile, flexural, loss modulus and storage modulus of developed hybrid composite material. SEM analysis confirmed the proper distribution of fillers and their presence from XRD analysis. All fabricated hybrid composite displayed improved thermal conductivity value and a marginal increase in the corrosion rate. The overall result predicts that the improvement is quite better compared to neat or solo bamboo filler based epoxy composite. The improvement is ascribed due to the proper interfacial bonding or cross-link between micro bamboo filler/epoxy polymer with the addition of GNPs. Developed filler based hybrid composite may be utilized for the application of thermal interface material, circuit board, electronic packaging, etc.

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Section: Introductionmentioning

confidence: 99%

Thermomechanical behavior of graphene nanoplatelets and bamboo micro filler incorporated epoxy hybrid composites

Gouda¹,

Bhowmik²,

Das³

2020

Mater. Res. Express

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“…Kmetty et al proposed to use pre‐impregnated pellets, prepared by film‐stacking of high tenacity polymer fibres and copolymer matrix, serving as adequate starting material for injection moulding of SRPCs with homogeneous fibre distribution and improved mechanical properties . Recently, researchers also drew attention to the advantages of using organic and inorganic fibres and fillers in SRPCs, but the feasibility of such hybrid composite preparation with the injection moulding technology was not yet studied.…”

Section: Introductionmentioning

confidence: 99%

Flame retarded self‐reinforced polypropylene composites prepared by injection moulding

Vadas

Kmetty

Bárány

et al. 2017

Polymers for Advanced Techs

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A method was elaborated to prepare flame retarded self-reinforced polypropylene composites by injection moulding. The effect of intumescent flame retardant (FR) loading was comprehensively investigated on the morphology, flammability, and mechanical properties of the self-reinforced polypropylene composites and compared with non-reinforced counterparts of identical additive contents. Homogeneous distribution of both the reinforcing polypropylene fibres and the FR additive was achieved endowing significantly improved strength and stiffness accompanied with increased fire resistance. At 10% FR content, 37% reduction of peak of heat release rate, UL94 V-2 rating, and LOI of 24.5 vol% were achieved without compromising the improved mechanical performance of the injection moulded self-reinforced composites, ie, a 4-fold increase of tensile strength and a 7-fold increase of tensile modulus were reached compared with the non-reinforced counterpart. At higher loading (15% FR), the FR properties improved further (LOI of 29.5 vol% was reached); however, due to the abrasive effect of the FR particles in the matrix, the structure of the reinforcing fibres tends to get damaged during the thermo-mechanical processing, and thus their reinforcing efficacy deteriorated. It is demonstrated that the combination of polymer fibre reinforcement with other fillers (such as FRs) is advantageous and feasible even by injection moulding, but the balance between the individual attributed properties needs to be found. This concept provides advantages in terms of interfacial properties, mechanical performance to weight ratio, recyclability, and environmental impact; 1 therefore, SRPCs gain increasing interest in both academia and industries.Nowadays, SRPCs are mainly produced by 3 processing methods:hot compaction, consolidation of coextruded tapes, and film stacking. 2 All of these methods yield in sheet-like (pre) products; these ways 3-dimensional parts with complex geometry cannot be directly produced. Therefore, increasing attempts are being made to produceSRPCs by the more versatile injection moulding method. Polymer fibres with highly aligned molecular or supramolecular structure, 3 generally created during spinning or drawing, can serve as suitable reinforcements in the structurally similar polymer matrix. One of the greatest challenges in using thermoplastic fibres to reinforce thermoplastic matrices is in their combination into a well-consolidated composite, which, normally achieved by thermal means, is complicated by the narrow window between the melting temperature of the matrix and that of the reinforcing fibres. 4 One possible way to disturb the regularity of the macromolecular chain and thus lower the crystalline melting temperature is copolymerization. Using a block or graft copolymer as matrix giving constituent fairly wide processing window can be ensured for SRPC preparation, wide enough even for injection moulding technology. 5 In the case of polypropylene, the increasing ethylene copolymer content is also positively corr...

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“…The effect is strongly connected with the compressibility of the polymer and the slip conditions at the die wall . A successive increase in extrusion intensity may cause a second smooth region to occur ( in Fig. ).…”

Section: Introductionmentioning

confidence: 97%

“…Continuously increasing requirements regarding both quality and productivity of polymeric products with a concurrent demand for lowering production costs are the most important issues in polymer processing. One of the most common methods of cost reduction is the incorporation of inorganic and organic fillers into the polymeric matrix . Polyolefins, which are extensively used as materials for cast film production, are widely modified with high amounts of inorganic fillers, such as calcium carbonate, talc, etc.…”

Section: Introductionmentioning

confidence: 99%

Melt fracture and rheology of linear low density polyethylene - calcium carbonate composites

et al. 2016

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Rheological behavior and melt fracture of linear low-density polyethylene (LLDPE) calcium carbonate (CaCO 3 ) composites were investigated. Two types of commercial inorganic fillers were used, unmodified and modified with stearic acid. Rheological capillary studies were conducted to assess the influence of inorganic filler incorporation as well as chemical treatment on the rheological properties and instability sequence of polyethylene-based composites. Strong suppression of melt flow instabilities was observed for both types of composites. Mooney analysis was applied to examine the influence of mineral filler addition and stearic acid modification on the wall slip. Moreover, chemical treatment of calcium carbonate allows to obtain better dispersion of the inorganic filler in a polymeric matrix. POLYM. ENG. SCI., 57:998-1004,

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Polypropylene composites obtained from self‐reinforced hybrid fiber system

Cited by 27 publications

References 41 publications

Thermomechanical behavior of graphene nanoplatelets and bamboo micro filler incorporated epoxy hybrid composites

Thermomechanical behavior of graphene nanoplatelets and bamboo micro filler incorporated epoxy hybrid composites

Flame retarded self‐reinforced polypropylene composites prepared by injection moulding

Melt fracture and rheology of linear low density polyethylene - calcium carbonate composites

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