Polymorphic Crystallization and Crystalline Reorganization of Poly(l-lactic acid)/Poly(d-lactic acid) Racemic Mixture Influenced by Blending with Poly(vinylidene fluoride)

2016 ◽  
Vol 120 (32) ◽  
pp. 8046-8054 ◽  
Author(s):  
Chengtao Yu ◽  
Lili Han ◽  
Jianna Bao ◽  
Guorong Shan ◽  
Yongzhong Bao ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Vinylidene Fluoride ◽  
Racemic Mixture ◽  
Poly Vinylidene Fluoride

scholarly journals Miscibility and Crystallinity Study of Poly(vinylidene Fluoride) / Poly(L-Lactic Acid) Polymer Blend

2018 ◽  
Vol 5 ◽  
pp. S130-S136 ◽  
Author(s):  
N.I. Mukri ◽  
T.S. Velayutham ◽  
W.C. Gan ◽  
W.H. Abd Majid
Keyword(s):  
Lactic Acid ◽  
Polymer Blend ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride

Role of poly(lactic acid) in the phase transition of poly(vinylidene fluoride) under uniaxial stretching

2012 ◽  
Vol 129 (4) ◽  
pp. 1686-1696 ◽  
Author(s):  
Qi Xie ◽  
Kai Ke ◽  
Wen-Rou Jiang ◽  
Wei Yang ◽  
Zheng-Ying Liu ◽  
...  
Keyword(s):  
Phase Transition ◽  
Lactic Acid ◽  
Vinylidene Fluoride ◽  
Poly Lactic Acid ◽  
Uniaxial Stretching ◽  
Poly Vinylidene Fluoride

scholarly journals Nanocomposite Materials Based on TMDCs WS2 Modified Poly(l-Lactic Acid)/Poly(Vinylidene Fluoride) Polymer Blends

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2179
Author(s):  
Mohammed Naffakh
Keyword(s):  
Lactic Acid ◽  
Synergistic Effect ◽  
Vinylidene Fluoride ◽  
Melt Processing ◽  
Hybrid Nanocomposites ◽  
Processing Route ◽  
Ternary Blend ◽  
Synthetic Process ◽  
Poly Vinylidene Fluoride ◽  
Blend Nanocomposites

Novel multifunctional biopolymer blend nanocomposites composed of poly(vinylidene fluoride)(PVDF) and tungsten disulfide nanotubes (INT-WS2) that are layered transition metal dichalcogenides (TMDCs) were easily prepared by applying an economical, scalable, and versatile melt processing route. Furthermore, their synergistic effect to enhance the properties of poly(L-lactic acid) (PLLA) matrix was investigated. From morphological analysis, it was shown that the incorporation of 1D (INT)-WS2 into the immiscible PLLA/PVDF mixtures (weight ratios: 80/20, 60/40, 40/60, and 20/80) led to an improvement in the dispersibility of the PVDF phase, a reduction in its average domain size, and consequently a larger interfacial area. In addition, the nanoparticles INT-WS2 can act as effective nucleating agents and reinforcing fillers in PLLA/PVDF blends, and as such, greatly improve their thermal and dynamic-mechanical properties. The improvements are more pronounced in the ternary blend nanocomposites with the lowest PVDF content, likely due to a synergistic effect of both highly crystalline PVDF and 1D-TMDCs nano-additives on the matrix performance. Considering the promising properties of the developed materials, the inexpensive synthetic process, and the extraordinary properties of environmentally friendly and biocompatibe 1D-TMDCs WS2, this work may open up opportunities to produce new PLLA/PVDF hybrid nanocomposites that show great potential for biomedical applications.

Piezoelectric β-polymorph formation of new textiles by surface modification with coating process based on interfacial interaction on the conformational variation of poly (vinylidene fluoride) (PVDF) chains

2020 ◽  
Vol 91 (3) ◽  
pp. 31301
Author(s):  
Nabil Chakhchaoui ◽  
Rida Farhan ◽  
Meriem Boutaldat ◽  
Marwane Rouway ◽  
Adil Eddiai ◽  
...  
Keyword(s):  
High Efficiency ◽  
Vinylidene Fluoride ◽  
Research Work ◽  
Research Area ◽  
Interfacial Interaction ◽  
Tetraethyl Orthosilicate ◽  
Poly Vinylidene Fluoride ◽  
Carbon Nanofillers ◽  
The Impact ◽  
Advanced Applications

Novel textiles have received a lot of attention from researchers in the last decade due to some of their unique features. The introduction of intelligent materials into textile structures offers an opportunity to develop multifunctional textiles, such as sensing, reacting, conducting electricity and performing energy conversion operations. In this research work nanocomposite-based highly piezoelectric and electroactive β-phase new textile has been developed using the pad-dry-cure method. The deposition of poly (vinylidene fluoride) (PVDF) − carbon nanofillers (CNF) − tetraethyl orthosilicate (TEOS), Si(OCH2CH3)4 was acquired on a treated textile substrate using coating technique followed by evaporation to transform the passive (non-functional) textile into a dynamic textile with an enhanced piezoelectric β-phase. The aim of the study is the investigation of the impact the coating of textile via piezoelectric nanocomposites based PVDF-CNF (by optimizing piezoelectric crystalline phase). The chemical composition of CT/PVDF-CNC-TEOS textile was detected by qualitative elemental analysis (SEM/EDX). The added of 0.5% of CNF during the process provides material textiles with a piezoelectric β-phase of up to 50% has been measured by FTIR experiments. These results indicated that CNF has high efficiency in transforming the phase α introduced in the unloaded PVDF, to the β-phase in the case of nanocomposites. Consequently, this fabricated new textile exhibits glorious piezoelectric β-phase even with relatively low coating content of PVDF-CNF-TEOS. The study demonstrates that the pad-dry-cure method can potentially be used for the development of piezoelectric nanocomposite-coated wearable new textiles for sensors and energy harvesting applications. We believe that our study may inspire the research area for future advanced applications.

Effect of Carbon Nanotubes on the Shape Memory Performance of Poly(vinylidene fluoride)/Acrylic Blends

2013 ◽  
Vol 30 (2) ◽  
pp. 134
Author(s):  
Hui FU ◽  
Jishan QIU ◽  
Ning CHONG ◽  
Yaqing WANG ◽  
Yuanyuan TIAN ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Shape Memory ◽  
Vinylidene Fluoride ◽  
Memory Performance ◽  
Poly Vinylidene Fluoride
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