Effect of hot drawing on properties of wet‐spun poly(<scp>L,D</scp>‐lactide) copolymer multifilament fibers

Rissanen, Marja; Puolakka, Arja; Hukka, Terttu I.; Ellä, Ville; Kellomäki, Minna; Nousiainen, Pertti

doi:10.1002/app.31015

Cited by 4 publications

(4 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8 Many efforts have been dedicated to the production of PLA fibers via different kinds of spinning processes in which melt spinning has been extensively studied. 9–18 The results showed that the processing temperature is comparable to that of polyolefins, which depends on the optical purity of the polymer. 19,20 The brittleness and rigidity of PLA limit its applicability.…”

mentioning

confidence: 94%

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

Hassan

Elarabi

You

et al. 2017

Textile Research Journal

View full text Add to dashboard Cite

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.

show abstract

mentioning

confidence: 94%

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

Hassan

Elarabi

You

et al. 2017

Textile Research Journal

View full text Add to dashboard Cite

show abstract

“…Biodegradable PLA is perhaps the most important polyester in biomedical applications [9,10]. PLA has attracted an increasing interest in various markets, such as packaging, textile [11][12][13][14][15], and automotive industries [16,17]. It can be processed using injection-molding, compressionmolding, extrusion, and thermoforming etc.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Mechanical Properties and Thermal Stability of Poly(lactic Acid) and Poly(butylene Succinate) Blends Composites

Yu¹

2013

JFBI

102

View full text Add to dashboard Cite

The blend of poly(lactic acid) (PLA) and poly(butylene succinate) (PBS) were prepared and extruded with various compositions and their molded properties were examined. Thermogravimetric analysis showed that thermal stability of the blends was higher than that of pure PLA and the weight loss of PLA/PBS (40/60 wt%) was lower than neat polymers. Differential scanning calorimetry thermograms of blends indicated that the thermal properties of PLA did not change noticeably when blended with PBS. The tensile strength and modulus of blends decreased with the increasing PBS content. But impact strength has improved about two times compared to pure PLA. Rheological results revealed that the addition of 10% and 20% of PBS increased the storage modulus, loss modulus and viscosity of the blend at nearly all frequencies, and decreased viscosity with increasing shear stress. Dynamic mechanical properties results showed the lowering of storage modulus of all blended PLA which indicated the increase of molecular mobility by adding PBS due to lower glass transition.

show abstract

“…Hot drawing during the spinning causes long molecules into alignment along the longitudinal axis of the filaments, resulting in a molecular orientation. This molecular orientation could also increase the crystallinity of the filaments 29 . In addition, the degree of crystallinity of the blended filament yarns decreased from 56.3% to 38.8% by increasing PDLA amount, indicating more amorphous structures.…”

Section: Resultsmentioning

confidence: 95%

“…This molecular orientation could also increase the crystallinity of the filaments. 29 In addition, the degree of crystallinity of the blended filament yarns decreased from 56.3% to 38.8% by increasing PDLA amount, indicating more amorphous structures.…”

Section: Characterization Of Pdla Blended Plla Filament Yarnsmentioning

confidence: 95%

Spinnability and characterization of poly(D‐lactic acid)‐blended poly(L‐lactic acid) filament yarns

Celen

Kocer

2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

Conventional textiles are produced mainly by petroleum‐based polymeric materials, which are not biodegradable, cause serious pollution, and waste problems. Especially, poly(ethylene terephthalate) is the most used thermoplastic polyester in various textile applications. At this point, poly(lactic acid) (PLA), a biodegradable polyester, stands out forward with its unique properties. PLA is derived from renewable sources such as corn, sugar cane, and so on. In this study, poly(D‐lactic acid) (PDLA) was blended to poly(L‐lactic acid) (PLLA) to reduce its highly crystalline morphology and rigidity. Introduction of PDLA would be expected to speed up its degradation by decreasing the amount of crystalline regions. PDLA was compounded into PLLA in amounts of 3, 6, and 9 wt%. First, PDLA‐blended PLLA compounds were produced, and then successfully spun/drawn into filament yarns by using a pilot‐scale melt spinning equipment. The compounds and the filament yarns were characterized by SEM, DSC, viscosity, carboxyl number, tenacity, elongation at break, unevenness, and shrinkage. Results showed that the amount of crystalline regions was decreased with increasing PDLA amount in both compounds and filament yarns. On the other hand, PDLA blending enhanced the rigidity of filament yarns by increasing their elongation at break.

show abstract

Effect of hot drawing on properties of wet‐spun poly(L,D‐lactide) copolymer multifilament fibers

Cited by 4 publications

References 28 publications

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

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

Dynamic Mechanical Properties and Thermal Stability of Poly(lactic Acid) and Poly(butylene Succinate) Blends Composites

Spinnability and characterization of poly(D‐lactic acid)‐blended poly(L‐lactic acid) filament yarns

Contact Info

Product

Resources

About