Crystallization kinetics and thermal resistance of bamboo fiber reinforced biodegradable polymer composites

Abstract

Bamboo fiber reinforced biodegradable polymer composites were prepared in this study. Biodegradable poly(butylene succinate) (PBS) was blended with bamboo fiber in a twin screw extruder with varied bamboo content from 0 -20 wt%. PBS/bamboo fiber composites were fabricated by compression molding process. The effect of bamboo fiber contents on properties of the composites was investigated. Non-isothermal crystallization kinetic study of the composites was investigated based on Avrami equation. The kinetic parameters indicated that bamboo fiber acted as heterogeneous nucleation and enhanced crystallinity of the composites. Bamboo fiber was well dispersed on PBS matrix and good adhered with the matrix. Tensile strength of the composites slightly deceased with adding bamboo fiber. However, tensile modulus and impact strength of the composites increased when increasing bamboo fiber contents. It can be noted that bamboo fiber promoted crystallization and crystallinity of PBS in the composites. Therefore, the composites were better in impact load transferring than neat PBS, which exhibited improving on impact performance of the composites.

Seal materials in flexible plastic food packaging: A review

“…The influence of blend ratio of PLA:starch on seal strength is subject of another study. Seal strength of PLA blends with 5 and 10 weight percent starch are in general slightly decreased compared to pure PLA at considered seal temperatures and times of, respectively, 90–100°C and 0.5–2.0 s 114 …”

“…113 The influence of blend ratio of PLA:starch on seal strength is subject of another study. Seal strength of PLA blends with 5 and 10 weight percent starch are in general slightly decreased compared to pure PLA at considered seal temperatures and times of, respectively, 90-100 C and 0.5-2.0 s. 114 In another study, hot tack performance of blended films with PLA and nanoclay is evaluated. Sealing initiates around 80 C. A peak value, just below 0.6 N.mm À1 , is achieved at 135 C with pure PLA samples.…”

Effect of Bamboo Fiber Length on Mechanical Properties, Crystallization Behavior, and in Vitro Degradation of Bamboo Fiber/Nanohydroxyapatite/Poly(lactic-co-glycolic) Composite

“…For example, biodegradable poly-(butylene succinate) (PBS) was blended with BF, and the tensile modulus and impact strength of the composites were enhanced with increasing bamboo fiber contents. 17 Similarly, BF could greatly improve the impact property or tensile strength of PLA, and promote PLA crystallization. 18,19 Moreover, the effects of many parameters of BF on mechanical properties of composites were investigated, including chemical treatment, composite preparation techniques, fiber length, and fiber loading.…”

“…Natural plant fibers are renewable, and they have the advantages of being more abundant and cheaper than glass or carbon fibers. , In order to pursue biodegradable composites, natural fibers are customarily used to reinforce polylactic acid (PLA), and they can achieve high mechanical properties. − Among the various plant fibers, bamboo fiber (BF) is a natural degradable fiber, and it is a good candidate to increase the mechanical strength of polymer due to its excellent strength and flexibility. − Accordingly, many researchers have reported considerable studies on different properties of polymer-based composites reinforced with BF, focusing on the mechanical properties, crystallization kinetics, thermal resistance, and so on. For example, biodegradable poly­(butylene succinate) (PBS) was blended with BF, and the tensile modulus and impact strength of the composites were enhanced with increasing bamboo fiber contents . Similarly, BF could greatly improve the impact property or tensile strength of PLA, and promote PLA crystallization. , Moreover, the effects of many parameters of BF on mechanical properties of composites were investigated, including chemical treatment, composite preparation techniques, fiber length, and fiber loading .…”