scholarly journals Tensile properties of coir and fleece fibers reinforced poly-lactic acid hybrid green composites

2019 ◽  
Vol 1217 ◽  
pp. 012008
Author(s):  
L Musyarofah ◽  
D Puspita ◽  
E Hidayah ◽  
Sujito
Keyword(s):  
Lactic Acid ◽  
Tensile Properties ◽  
Poly Lactic Acid ◽  
Green Composites

Morphology and Mechanical Properties of Poly(Lactic Acid) and Propylene-Ethylene Copolymer Blends: Effect of Organoclay Types

2017 ◽  
Vol 737 ◽  
pp. 269-274
Author(s):  
Sirirat Wacharawichanant ◽  
Chaninthon Ounyai ◽  
Ployvaree Rassamee
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Tensile Properties ◽  
Polymer Matrix ◽  
Poly Lactic Acid ◽  
Dispersed Phase ◽  
Copolymer Blends ◽  
Morphology Analysis ◽  
Ethylene Copolymer ◽  
Morphology And Mechanical Properties

The effects of four types of organoclay on morphology and mechanical properties of poly(lactic acid) (PLA)/propylene-ethylene copolymer (PEC) blends were investigated. The ratio of PLA and PEC was 80/20 by weight and the organoclay content was 5 phr. The morphology analysis showed that the addition of all oganocaly types could improve the miscibility of PLA and PEC blends due to the decreased of the domain sizes of PEC dispersed phase in the polymer matrix. The tensile properties showed Young’s modulus of the PLA/PEC blends was improved after adding clay treated surface with 25-30 wt% trimethyl stearyl ammonium.

scholarly journals Stress, strain and deformation of poly-lactic acid filament deposited onto polyethylene terephthalate woven fabric through 3D printing process

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Prisca Aude Eutionnat-Diffo ◽  
Yan Chen ◽  
Jinping Guan ◽  
Aurelie Cayla ◽  
Christine Campagne ◽  
...  
Keyword(s):  
Lactic Acid ◽  
3D Printing ◽  
Tensile Properties ◽  
Polyethylene Terephthalate ◽  
Polymeric Materials ◽  
Deposition Process ◽  
Woven Fabric ◽  
Poly Lactic Acid ◽  
Printing Process ◽  
3D Printed

Abstract Although direct deposition of polymeric materials onto textiles through 3D printing is a great technique used more and more to develop smart textiles, one of the main challenges is to demonstrate equal or better mechanical resistance, durability and comfort than those of the textile substrates before deposition process. This article focuses on studying the impact of the textile properties and printing platform temperature on the tensile and deformations of non-conductive and conductive poly lactic acid (PLA) filaments deposited onto polyethylene terephthalate (PET) textiles through 3D printing process and optimizing them using theoretical and statistical models. The results demonstrate that the deposition process affects the tensile properties of the printed textile in comparison with the ones of the textiles. The stress and strain at rupture of the first 3D printed PLA layer deposited onto PET textile material reveal to be a combination of those of the printed layer and the PET fabric due to the lower flexibility and diffusion of the polymeric printed track through the textile fabric leading to a weak adhesion at the polymer/textile interface. Besides, printing platform temperature and textile properties influence the tensile and deformation properties of the 3D printed PLA on PET textile significantly. Both, the washing process and the incorporation of conductive fillers into the PLA do not affect the tensile properties of the extruded polymeric materials. The elastic, total and permanent deformations of the 3D-printed PLA on PET fabrics are lower than the ones of the fabric before polymer deposition which demonstrates a better dimensional stability, higher stiffness and lower flexibility of these materials.

Poly(Lactic Acid) Hybrid Green Composites

2016 ◽  
pp. 149-166 ◽  
Author(s):  
Mahbub Hasan ◽  
Azman Hassan ◽  
Zainoha Zakaria
Keyword(s):  
Lactic Acid ◽  
Poly Lactic Acid ◽  
Green Composites

Effect of Dielectric Barrier Discharge Plasma Surface Treatment on the Properties of Pineapple Leaf Fiber Reinforced Poly(Lactic Acid) Biocomposites

2016 ◽  
Vol 862 ◽  
pp. 156-165 ◽  
Author(s):  
Martin Boruvka ◽  
Chakaphan Ngaowthong ◽  
Luboš Bĕhálek ◽  
Jiří Habr ◽  
Petr Lenfeld
Keyword(s):  
Lactic Acid ◽  
Surface Treatment ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Poly Lactic Acid ◽  
Green Composites ◽  
Dielectric Barrier ◽  
Plasma Surface ◽  
Pineapple Leaf Fiber ◽  
Plasma Surface Treatment

Plant source-based stiff fiber reinforced bioplastics based on natural plant derived substances show promise of providing degradation back into the environment when they are no longer needed. These "green" composites have enormous potential to replace materials originated from non-renewable resources and may turn out to be one of the material revolutions of this century. Unlike synthetic composites, "green" composites are renewable, carbon neutral, biodegradable, non-petroleum based, and have low environmental, human health and safety risks. In this paper effect of pineapple leaf fiber (PALF) length and physical surface treatment on to the properties of the composites was investigated at 10% wt. loading. In order to improve compatibility and composite properties of PALF/poly (lactic acid) composites without any hazardous chemicals that are usually involved in the process, dielectric barrier discharge (DBD) plasma surface treatment was conducted for fiber modification. Therefore more environmentally friendlier and industrially scalable technology was implemented in processing of composites by twin screw extrusion and injection moulding. Resulted composites were characterized by means of scanning electron microscopy (SEM), thermal and mechanical testing.

Green Composites from Sugar Beet Pulp and Poly(lactic acid): Structural and Mechanical Characterization

2007 ◽  
Vol 1 (3) ◽  
pp. 323-330 ◽  
Author(s):  
L. S. Liu ◽  
V. L. Finkenstadt ◽  
C.-K. Liu ◽  
D. R. Coffin ◽  
J. L. Willett ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Sugar Beet ◽  
Mechanical Characterization ◽  
Sugar Beet Pulp ◽  
Poly Lactic Acid ◽  
Green Composites ◽  
Beet Pulp

Study on the Properties of Poly(lactic Acid) and Thermal Plastic Starch Blended Materials Plasticized by PEG 200

2012 ◽  
Vol 550-553 ◽  
pp. 813-817 ◽  
Author(s):  
Peng Liu ◽  
Cai Qin Gu ◽  
Qing Zhu Zeng ◽  
Hao Huai Liu
Keyword(s):  
Lactic Acid ◽  
Thermal Properties ◽  
Polyethylene Glycol ◽  
Rheological Properties ◽  
Tensile Properties ◽  
Tensile Modulus ◽  
Poly Lactic Acid ◽  
Pseudoplastic Fluid ◽  
Materials Properties ◽  
Plasticization Effect

In this paper, the blended materials of poly(lactic acid) (PLA) and thermal plastic starch (TPS) under the plasticization of polyethylene glycol (PEG) 200 were prepared. By detecting the thermal, rheological and tensile properties, it evaluated the plasticization effect of PEG 200 on blended materials. Specifically, for thermal properties, the addition of PEG 200 could improve mobile ability of PLA macromolecules, and accelerated them to form crystalline. But if the content of PEG 200 was more than 10%, this effect was impaired. For rheological properties, PEG 200 could change the fusant of blended materials from pseudoplastic fluid to newton fluid. However, if the PEG 200 was added too much, the blended material was too like perfect newton fluid to be prepared suitably. For tensile properties, when content of PEG 200 was more than 10%, the elongation and tensile modulus would changed sharply. All in all, 10% was the suitable addition parameter for PEG 200. Above this content, the plasticization effect of PEG 200 was too strong to impaired materials properties.

Effects of Graphene Nanopletelets on Poly(Lactic Acid)/Poly(Ethylene Glycol) Polymer Nanocomposites

2014 ◽  
Vol 1024 ◽  
pp. 136-139 ◽  
Author(s):  
Buong Woei Chieng ◽  
Ibrahim Nor Azowa ◽  
Wan Yunus Wan Md Zin ◽  
Mohd Zobir Hussein
Keyword(s):  
Lactic Acid ◽  
Ethylene Glycol ◽  
Tensile Properties ◽  
Tensile Modulus ◽  
Poly Lactic Acid ◽  
Poly Ethylene Glycol ◽  
Elongation At Break ◽  
Sem Image ◽  
Blending Method ◽  
Poly Ethylene

Graphene nanoplatelets (xGnP) were investigated as a novel nanoreinforcement filler in poly (lactic acid)(PLA)/poly (ethylene glycol)(PEG) blends by melt blending method. The prepared nanocomposites exhibited a significant improvement in tensile properties at a low xGnP loading. The tensile properties demonstrated the addition of 0.3wt% of xGnP led to an increase of up to 32.7%, 69.5% and 21.9% in tensile strength, tensile modulus and elongation at break of the nanocomposites respectively, compared to PLA/PEG blend. The nanocomposites also shows enhanced thermal stability compared with PLA/PEG blend in thermogravimetry analysis (TGA). Scanning electron microscopy (SEM) image of PLA/PEG/0.3wt% xGnP displays good uniformity and more homogenous morphology.

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