Biodegradable poly (lactic acid)/poly (butylene succinate) fibers with high elongation for health care products

Abstract

Poly (lactic acid)/poly (butylene succinate) (PLA/PBS) blend fibers with high miscibility and improved elongation with comparable mechanical strength were fabricated using the melt spinning process in order to reduce the impact on the environment by long-lasting plastics-based composites. The PLA/PBS blend fibers produced in different ratios have revealed high miscibility, which has been confirmed by morphological studies. The thermal properties showed the melting temperature of PLA at 167.13℃ and PLA/PBS blends at 169.18℃, and an increased content of PBS in blends also led to improved crystallinity. Importantly, during tensile testing, it is observed that the fracture behavior of the specimen changed from brittle fracture of neat PLA to ductile fracture of the blends, as demonstrated by the significant increase in the elongation at break with comparable tensile strength and modulus. Furthermore, the washing fastness, rubbing fastness, exhaustion values, strength loss, and shade depth (K/S value) for the knitted and dyed fibers were explored. It was found that the exhaustion and K/S value increased when the temperature increased, but the strength decreased. The exhaustion and K/S value of PLA/PBS blend fabrics improved compared to pure PLA fabric, with excellent washing and rubbing fastness.

A Fully Biodegradable Pla/PBS Composite Reinforced With Wood Flour

“…Due to the biodegradability and very good processing properties of PBS, in comparison with those of PLA, the creation of composites or blends of the two materials seems to be a favourable way to improve their properties, as can be observed in numerous studies. [10][11][12][13][14][15][16][17] Natural fibers, which have a number of advantages, such as low price, wide availability and biodegradability, are used in order to strengthen composites. Among natural fibers, vegetable fibers contain highly polarized hydroxyl groups, which are inherently hydrophilic.…”

Morphology, Structural, Thermal, and Tensile Properties of Bamboo Microcrystalline Cellulose/Poly(Lactic Acid)/Poly(Butylene Succinate) Composites

“…The surface morphology of PLA(M1), PLA-PBS(M2), and PLA-PBS-MCC (M3, M4 and M5) composites was performed as illustrated in Figure 1 . PLA composite demonstrated a smoother surface, due to the poor plastic deformation [ 24 ] as evident from Figure 1 a, while the homogeneously distributed PBS phase exists in all PLA-PBS blends showing the compatibility of the PLA-PBS blends [ 25 ]. The addition of PBS up to 20 wt% better compatibility can possibly be attained [ 1 ].…”

Bamboo Fiber Based Cellulose Nanocrystals/Poly(Lactic Acid)/Poly(Butylene Succinate) Nanocomposites: Morphological, Mechanical and Thermal Properties

“…On the other hand, PBS is flexible and tough; when blended with PLA, it overcomes the limitations of PLA and results in the development of plastic materials of desirable mechanical properties [ 4 , 5 , 6 ]. Additionally, the ability of PLA-PBS blend for packaging application has been reported earlier by the researchers [ 7 ] and higher miscibility has also been achieved [ 8 ]. Further, the addition of natural fibers (bamboo fiber) in the blend has proved to improve their properties; however, there was an improvement in tensile strength [ 9 , 10 ].…”