Mechanical and thermal properties of sisal fiber reinforced acrylated epoxidized castor oil toughened diglycidyl ether of bisphenol A epoxy nanocomposites

Paluvai, Nagarjuna Reddy; Mohanty, Smita; Nayak, SK

doi:10.1177/0731684415595126

Cited by 16 publications

(7 citation statements)

References 31 publications

(27 reference statements)

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“…Meanwhile, at higher wt% of fillers, there was deterioration in the properties of the NFPCs, due to agglomeration of the fillers and the interfacial adhesion between the polymer matrix and fiber were noticed to be weak. Furthermore, it was suggested that the rise in tensile modulus and the fall in impact strength of the NFPCs with clay fillers were as a result of the polymer matrix improved cross-link density, which led to a decrease in the stiffness of the composite, hence reduced the impact strength [130,133]. While in other studies, aluminum powder was used as fillers and in others, modified clay improved the impact strength of the composite, as the SEM micrographs revealed the existence of less voids and rise in density along with improvement in stiffness resultant from better interfacial adhesion amongst the fiber and the matrix in the presence of the modified clay [134,135].…”

Section: Nanocellulose and Nanoparticlesmentioning

confidence: 99%

Fiber-Matrix Relationship for Composites Preparation

Shesan¹,

Stephen²,

Chioma³

et al. 2019

Renewable and Sustainable Composites

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Fiber-matrix interaction at the interphase is one very important property that is of great concern to all polymer scientists involved in polymer composites. Many of the failures can be traced to the type of interfacial interaction existing in the composites. That is why highlighting the factors that dictate the type of and the extent of interactions at the interphases become very necessary. Natural fiber polymer composites have found application in many fields of human endeavors. To continue this growth being experienced, the factors that determine the formation of good interaction at the interphase most be understood, so that they can be manipulated for a better result.

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Section: Nanocellulose and Nanoparticlesmentioning

confidence: 99%

Fiber-Matrix Relationship for Composites Preparation

Shesan¹,

Stephen²,

Chioma³

et al. 2019

Renewable and Sustainable Composites

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“…Traditionally, in order to improve mechanical properties, polymer composites are reinforced by aramid, glass, and carbon fibers . Considering environmental protection, the recent research interests are attracted to substitute the traditional fibers with natural ones, such as sisal fiber, which exhibits advantages mainly on green regeneration, low price (0.36 USD/kg, versus glass fiber’s 3.25 USD/kg), light weight (density: approximately 1.5 g/cm 3 ), and flexibility during processing which results in less abrasion on processing machinery. − A lot of literatures studies mentioned its applications on polypropylene, phenolics, − epoxy, − and unsaturated polyester composites. − …”

Section: Introductionmentioning

confidence: 99%

Sustainable, Biobased Silicone with Layered Double Hydroxide Hybrid and Their Application in Natural-Fiber Reinforced Phenolic Composites with Enhanced Performance

Cheng

Wan

Pan

et al. 2016

ACS Sustainable Chem. Eng.

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With wide application of natural fibers in polymer composites, improvements in their flame retardancy, water absorption, and electrical resistance become an urgent need. To this end, 4.5 wt % of layered double hydroxide (LDH) is introduced into sisal fiber reinforced biobased silicone modified phenolic composites. The modified composites optimally shows 60% reduction in total heat release (20.2 MJ/m2) compared to the composites without LDH. In addition, the biobased silicone modifier TDS is incorporated into phenolic resins (SPF), to further reduce water absorption rate to 6 wt %, and increase volume electrical resistance up to 4.6 × 1016 Ω m. The SPF-SF-SDBSLDH exhibits a high impact strength of 4.2 kJ/m2, over 50% higher than the unmodified PF-SF composites. The SEM observations show that the SPF composites exhibit better interfacial interaction with sisal fiber than normal phenolic (PF) composites. All these flame retardant, impact strength and electrical resistance properties are compatible with the requirement for applications as molding compounds. Our research provides a cost-effective method to improve the performance of this sustainable natural-fiber reinforced composites with novel and low cost biobased silicone modifier and LDHs. These high performance composites are promising for applications in high technology areas such as the microelectric industry and lightweight automotives.

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“…Accordingly, the fiber surface becomes cleaned and imparts the thermal stability of sisal fibers. 40–43…”

Section: Resultsmentioning

confidence: 99%

Dynamic mechanical properties and characterization of chemically treated sisal fiber-reinforced polypropylene biocomposites

Bassyouni

2018

Journal of Reinforced Plastics and Composites

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The incorporation of sisal fiber as reinforcement materials for polymers will be advantageous if it is synthesized and manufactured perfectly. In this study, surface modification using polymeric diphenylmethane di-isocyanate and gamma-aminopropyltriethoxysilane was applied for further amelioration of polypropylene–sisal bonding. Surface morphology, thermomechanical properties, thermal stability, and chemical bonding were investigated using scanning electron microscopy, dynamic mechanical analysis, thermogravimetric analysis, and Fourier transform infrared spectroscopy, respectively. A number of mathematical models were studied for predicting the effect of untreated and modified sisal fiber loadings on the mechanical properties of biocomposites. Polymeric diphenylmethane di-isocyanate showed a significant improvement on the thermal and mechanical properties of polypropylene biocomposites. Fourier transform infrared spectroscopy analysis of polypropylene–sisal biocomposite showed the formation of urethane group at 3333 cm−1 in the presence of polymeric diphenylmethane di-isocyanate. Glass transition temperature of polypropylene–sisal was slightly increased to 6.8°C by chemical modification with polymeric diphenylmethane di-isocyanate. Yield strength of polypropylene–sisal (30 wt%) was enhanced by more than 50% with polymeric diphenylmethane di-isocyanate chemical treatment. Halpin–Tsai and Nielsen theoretical mathematical models showed a good agreement with experimental results of polypropylene–untreated sisal and polypropylene–treated sisal, respectively.

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Mechanical and thermal properties of sisal fiber reinforced acrylated epoxidized castor oil toughened diglycidyl ether of bisphenol A epoxy nanocomposites

Cited by 16 publications

References 31 publications

Fiber-Matrix Relationship for Composites Preparation

Fiber-Matrix Relationship for Composites Preparation

Sustainable, Biobased Silicone with Layered Double Hydroxide Hybrid and Their Application in Natural-Fiber Reinforced Phenolic Composites with Enhanced Performance

Dynamic mechanical properties and characterization of chemically treated sisal fiber-reinforced polypropylene biocomposites

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