A Review of Recent Advances in Nanoengineered Polymer Composites

Kumar, Vishnu Vijay; Balaganesan, G.; Lee, Jeremy Kong Yoong; Neisiany, Rasoul Esmaeely; Surendran, S.; Ramakrishna, Seeram

doi:10.3390/polym11040644

Cited by 61 publications

(20 citation statements)

References 68 publications

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“…However, further studies should be carried out in future on resin-curing to have a better understanding on how sepiolite chemically affects UF-resin. Chemical studies like resin-curing and FTIR would possibly explain why the increases in hardness values were so low, contrary to some previous studies demonstrating the high impact of low amounts of nanofillers on different properties of resins and adhesives [46][47][48][49]. Regression analysis among different properties showed the high and significant R-square values between all of them.…”

Section: Resultscontrasting

confidence: 59%

Improving Thermal Conductivity Coefficient in Oriented Strand Lumber (OSL) Using Sepiolite

et al. 2020

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An issue in engineered wood products, like oriented strand lumber (OSL), is the low thermal conductivity coefficient of raw material, preventing the fast transfer of heat into the core of composite mats. The aim of this paper is to investigate the effect of sepiolite at nanoscale with aspect ratio of 1:15, in mixture with urea-formaldehyde resin (UF), and its effect on thermal conductivity coefficient of the final panel. Sepiolite was mixed with UF resin for 20 min prior to being sprayed onto wood strips in a rotary drum. Ten percent of sepiolite was mixed with the resin, based on the dry weight of UF resin. OSL panels with two resin contents, namely 8% and 10%, were manufactured. Temperature was measured at the core section of the mat at 5-second intervals, using a digital thermometer. The thermal conductivity coefficient of OSL specimens was calculated based on Fourier’s Law for heat conduction. With regard to the fact that an improved thermal conductivity would ultimately be translated into a more effective polymerization of the resin, hardness of the panel was measured, at different depths of penetration of the Janka ball, to find out how the improved conductivity affected the hardness of the produced composite panels. The measurement of core temperature in OSL panels revealed that sepiolite-treated panels with 10% resin content had a higher core temperature in comparison to the ones containing 8% resin. Furthermore, it was revealed that the addition of sepiolite increased thermal conductivity in OSL panels made with 8% and 10% resin contents, by 36% and 40%, respectively. The addition of sepiolite significantly increased hardness values in all penetration depths. Hardness increased as sepiolite content increased. Considering the fact that the amount of sepiolite content was very low, and therefore it could not physically impact hardness increase, the significant increase in hardness values was attributed to the improvement in the thermal conductivity of panels and subsequent, more complete, curing of resin.

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Section: Resultscontrasting

confidence: 59%

Improving Thermal Conductivity Coefficient in Oriented Strand Lumber (OSL) Using Sepiolite

et al. 2020

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“…The improvement of the flexural strength and Young’s modulus for as-received and preheated glass fibers can be concluded from Table 1. It can be noticed that the flexural strength and Young′s modulus increased when the fiber percentage increased, which behaved like most of the thermoplastic composites [2,4,44]. The thermal treatment showed an additional improvement of all the samples [36], 20.1, 18.2, and 30.7% were the improvement percentages in flexural strength for the preheated composites for 50/50, 60/40, and 70/30, respectively, compared with the as-received composites and the improvement percentages in Young′s modulus were 26.3, 22.7, and 43.5%, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Growing attention has been given to the improvement of polymeric composite properties, especially in regards to their high strength-to-weight ratio [1,2,3]. Polyethersulfone (PES) is a superior performance engineering plastic with a high glass transition temperature T g of 225 °C and operating temperature up to 180 °C.…”

Section: Introductionmentioning

confidence: 99%

Effect of Formation Route on the Mechanical Properties of the Polyethersulfone Composites Reinforced with Glass Fibers

et al. 2019

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Interfacial interaction is one of the most important factors that affect the mechanical properties of the fiber reinforced composites. The effect of fabrics′ sizing removal from glass fibers’ surface by thermal treatment on the mechanical characteristics of polyethersulfone based composites at different fiber to polymer weight ratios was investigated. Three fiber to polymer weight ratios of 50/50, 60/40, and 70/30 were studied. Flexural and shear tests were carried out to illustrate the mechanical properties of the composites; the structure was studied using Fourier-transform infrared spectroscopy and scanning electron microscopy. It was shown that solution impregnation of glass fabrics with polyethersulfone before compression molding allows to achieve good mechanical properties of composites. The thermal treatment of glass fabrics before impregnation results in an increase in flexural and shear strength for all the composites due to the improvement of fiber–matrix interaction.

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“…Weight reduction of structural components and consequent energy/fuel savings due to the use of lightweight carbon fiber reinforced polymer composite (CFRP) materials can be achieved through nanomodification. Moreover, the productivity and competitiveness of CFRP products will be enhanced with the nanomodification and contribute to its broader range of applications [8]. By this applied research and collaborations between academia and industry will be enhanced, so that the findings of each partner can serve as a basis that potentiates further innovations.…”

Section: Introductionmentioning

confidence: 99%

Research and Development in Carbon Fibers and Advanced High-Performance Composites Supply Chain in Europe: A Roadmap for Challenges and the Industrial Uptake

et al. 2019

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Structural materials, typically based on metal, have been gradually substituted by high-performance composites based on carbon fibers, embedded in a polymer matrix, due to their potential to provide lighter, stronger, and more durable solutions. In the last decades, the composites industry has witnessed a sustained growth, especially due to diffusion of these materials in key markets, such as the construction, wind energy, aeronautics, and automobile sectors. Carbon fibers are, by far, the most widely used fiber in high-performance applications. This important technology has huge potential for the future and it is expected to have a significant impact in the manufacturing industry within Europe and, therefore, coordination and strategic roadmapping actions are required. To lead a further drive to develop the potential of composites into new sectors, it is important to establish strategic roadmapping actions, including the development of business and cost models, supply chains implementation, and development, suitability for high volume markets and addressing technology management. Europe already has a vibrant and competitive composites industry that is supported by several research centers, but for its positioning in a forefront position in this technology, further challenges are still required to be addressed.

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A Review of Recent Advances in Nanoengineered Polymer Composites

Cited by 61 publications

References 68 publications

Improving Thermal Conductivity Coefficient in Oriented Strand Lumber (OSL) Using Sepiolite

Improving Thermal Conductivity Coefficient in Oriented Strand Lumber (OSL) Using Sepiolite

Effect of Formation Route on the Mechanical Properties of the Polyethersulfone Composites Reinforced with Glass Fibers

Research and Development in Carbon Fibers and Advanced High-Performance Composites Supply Chain in Europe: A Roadmap for Challenges and the Industrial Uptake

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