Sisal natural fiber/clay-reinforced poly(hydroxybutyrate-co-hydroxyvalerate) hybrid composites

Abstract

Poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) biocomposites different sisal, containing with the fiber length of 0.25 and 5 mm, and addition of clay particles were prepared by hot compression technique. Silane (Bis(triethoxysilylpropyl)tetrasulfide) treatment has been used to modify, and thus enhance, the properties of related hybrid composites. All composites were subject to water absorption test. The mechanical properties of hybrid composites, such as tensile stiffness and strength, toughness, and hardness, determined tensile, impact, and hardness tests, respectively. It was found that tensile strength, stiffness, and impact strength of long sisal fiber improved with increasing fiber content. Hardness of short sisal fiber improved with increasing fiber content. Treated Silane of long fibers at 20 wt.% loading was found to enhance the tensile strength fiber by 10% and impact strength by 750% as compared with the neat PHBV. Note that this feature was also confirmed by scanning electron microscopy. Moreover, the hardness and water resistance of the PHBV/sisal composites increased with the addition of

Characterization of poly(hydroxybutyrate-co-hydroxyvalerate)/ Sisal Fiber/Clay bio-composites Prepared by Casting Technique

“…This was attributed to the hydrophilic properties of sisal fibers reduced with the incorporation of silane, which improved compatibility and adhesion of PHBV/sisal composites. It is also in accordance with previous report [9]. Figure 4 depicts the water absorption behavior of PHBV/clay nanoparticles composites and hybrid systems.…”

“…Tensile properties of natural fiber composites influenced on many factors such as length, distribution, orientation of fiber and their interfacial bond strength with matrix. One can clearly recognize that short sisal fiber-reinforced PHBV composites can be improved tensile modulus [9]. Whereas, the tensile strength of PHBV composites decreased with addition of sisal fiber.…”

Effect of Alkaline and Hot Water Treatments on the Structure and Morphology of Piassava Fibers

“…The process also modifies the surface of the fiber in terms of increased roughness, breaking some microfibril bundles, leading to defibrillation and individualization of microfibrils 3 . Therefore, many literature studies report surface modifications with sodium hydroxide of jute fibers, sisal, hemp, flax 3,15,[19][20] ; however, few studies have been proposed for modifying the surface of fiber residues, a by-product from manufacturing processes of vegetal fibers 21 .…”

Mechanical, thermal, and water absorption properties of melamine–formaldehyde‐treated sisal fiber containing poly(lactic acid) composites

“…The growing environmental awareness of public forces to replace petrochemical‐based plastics with those derived from renewable resources . Polymers from renewable resources are not only biobased but also biodegradable at the same time.…”