Silane-Treated Basalt Fiber–Reinforced Poly(butylene succinate) Biocomposites: Interfacial Crystallization and Tensile Properties

Abstract

Abstract:In this work, an economical modifier silane agent-KH550-was used for surface treatment of basalt fiber. Then, a biodegradable poly(butylene succinate) (PBS)/modified basalt fiber (MBF) biocomposite was successfully developed. The effects of silane treatment and fiber mass content on crystalline structure, isothermal crystallization process and mechanical performance of composites were evaluated. The interfacial crystallization of PBS on the surface of MBF was investigated by using a polarized optical microscope (POM). The transcrystalline (TC) structure could be clearly observed and it grew perpendicular to the surface of MBF, which boosted the nucleation ability on PBS crystallization and the strong interfacial interaction between PBS and silane-treated basalt fiber. Under isothermal crystallization kinetics, the incorporation of basalt fiber enhanced the crystallization rate and reduced the crystallization half-time values of composites compared with that of neat PBS due to a heterogeneous nucleation effect. Furthermore, tensile results confirmed that the presence of MBF could greatly improve the tensile strength and modulus. The predicted interfacial shear strength (IFSS) suggested that an enhancement of interfacial bonding could be realized via interfacial crystallization, which was also verified by SEM images. The PBS/MBF biocomposites can be applied in many fields as a low-cost, lightweight, and biodegradable composite material.

Basalt Fiber Modified Ethylene Vinyl Acetate/Magnesium Hydroxide Composites with Balanced Flame Retardancy and Improved Mechanical Properties

“…The surface treatment of BF was performed according to the literature [ 15 , 22 ]. First, PBF was immersed in the silane coupling agent (KH550, 0.75 wt.%) in water/ethanol (w/w, 20/1) for 60 min.…”

“…BF has many excellent properties, such as good modulus, good stability, good chemical resistance, high mechanical strength, high temperature resistance, and convenient preparation [ 12 ]. BF is similar to GF, and has better physical properties than GF, and obviously a lower price than carbon fiber [ 13 , 14 , 15 , 16 , 17 ]. However, BF is inorganic in nature and therefore has a poor interface interaction with polymer matrix.…”

Polylactide Composite Pins Reinforced with Bioresorbable Continuous Glass Fibers Demonstrating Bone-like Apatite Formation and Spiral Delamination Degradation

“…More recently, totally bioresorbable composites consisting of silicate glass fibers in a biodegradable polylactide matrix have been introduced as novel orthopedic materials due to their advanced mechanical properties which can support the bone during healing and also gradually degrade over time, allowing the bone to regain its natural strength [1,16]. The mechanical behavior of such composites reinforced with silicate glass fibers [1] may be more suitable for load-bearing applications than similar polylactide composites reinforced with phosphate glass fibers [17,18] or 13–93 bioglass fibers [3], and poly(butylene succinate) reinforced with basalt fibers [19]. Any successful resorbable orthopedic material should have sufficient mechanical properties to support the fracture, a degradation behavior matched to the healing rate of bone, and advanced bioactivity to promote the generation of new bone [20].…”

Property enhancement of poly(butylene succinate)/poly(ethyleneglycol‐co‐cyclohexane‐1,4‐dimethanolterephthalate) blends via high‐speed extrusion and in situ fibrillation

“…In recent years, with the awareness of low‐carbon environmental protection and sustainable development, green biodegradable polymers have attracted extensive attention for its great prospects . As a kind of biodegradable polymers, poly(butylene succinate) (PBS) undoubtedly meet the requirement of the low energy consumption and environmental protection.…”

“…In the past decades, various methods have been employed to reduce the cost and improve the mechanical properties of PBS . Generally, blending with other polymers to reinforce PBS by melt processing is a common method in industrial applications .…”