scholarly journals Compression Molding and Mechanical Properties of Green-Composite Based on Ramie/PLA Non-Twisted Commingled Yarn

2004 ◽  
Vol 53 (7) ◽  
pp. 776-781 ◽  
Author(s):  
Teruo KIMURA ◽  
Masahiro KURATA ◽  
Tatsuki MATSUO ◽  
Hirokazu MATSUBARA ◽  
Tadayuki SAKOBE
Keyword(s):  
Mechanical Properties ◽  
Compression Molding ◽  
Green Composite ◽  
Commingled Yarn

scholarly journals Hedysarum coronarium-Based Green Composites Prepared by Compression Molding and Fused Deposition Modeling

Materials ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 465
Author(s):  
Roberto Scaffaro ◽  
Maria Clara Citarrella ◽  
Emmanuel Fortunato Gulino ◽  
Marco Morreale
Keyword(s):  
Mechanical Properties ◽  
Young’S Modulus ◽  
Fused Deposition Modeling ◽  
Young's Modulus ◽  
Compression Molding ◽  
Green Composite ◽  
Fused Deposition ◽  
Hedysarum Coronarium ◽  
Deposition Modeling ◽  
Fibers Orientation

In this work, an innovative green composite was produced by adding Hedysarum coronarium (HC) flour to a starch-based biodegradable polymer (Mater-Bi®, MB). The flour was obtained by grinding together stems, leaves and flowers and subsequently sieving it, selecting a fraction from 75 μm to 300 μm. Four formulations have been produced by compression molding (CM) and fused deposition modeling (FDM) by adding 5%, 10%, 15% and 20% of HC to MB. The influence of filler content on the processability was tested, and rheological, morphological and mechanical properties of composites were also assessed. Through CM, it was possible to obtain easily homogeneous samples with all filler amounts. Concerning FDM, 5% and 10% HC-filled composites proved also easily printable. Mechanical results showed filler effectively acted as reinforcement: Young’s modulus and tensile strengths of the composites increased from 74.3 MPa to 236 MPa and from 18.6 MPa to 33.4 MPa, respectively, when 20% of HC was added to the pure matrix. FDM samples, moreover, showed higher mechanical properties if compared with CM ones due to rectilinear infill and fibers orientation. In fact, regarding the 10% HC composites, Young’s modulus of the CM and FDM ones displayed a relative increment of 176% and 224%, respectively.

Mechanical Properties of PBS Plastic Reinforced by Paper Using Waste Silk

2009 ◽  
Author(s):  
Ruoyuan Song ◽  
Haruhiro Ino ◽  
Teruo Kimura
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Silk Fibroin ◽  
Impact Resistance ◽  
Compression Molding ◽  
Hot Compression ◽  
Green Composite ◽  
Fiber Loading ◽  
Biodegradable Composite

Considering the efficient recycling of waste silk resource, the biodegradable composite consisting of PBS matrix and pure silk paper was prepared by hot compression molding. Beating treatment is adopted to modify silk fibroin and enhance the composite, and the corresponding mechanical properties and morphologies were studied detailedly. The results showed that beating treatment could realize the fibrillation of fibroin and improve the paper’s tensile strength, and proper beating treatment to fibroin could also improve the mechanical properties of silk paper reinforced PBS composite. The tensile, flexural and impact resistance properties of this green composite were improved remarkably with fiber loading increasing. Especially for impact resistance, it was improved 154% at 40 wt% fiber loading compared with PBS control.

scholarly journals A Review: Research Progress in Modification of Poly (Lactic Acid) by Lignin and Cellulose

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 776
Author(s):  
Sixiang Zhai ◽  
Qingying Liu ◽  
Yuelong Zhao ◽  
Hui Sun ◽  
Biao Yang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Composite Materials ◽  
Crystallization Rate ◽  
Research Progress ◽  
Poly Lactic Acid ◽  
Green Composite ◽  
Materials Development ◽  
Research Attention ◽  
Biomass Components

With the depletion of petroleum energy, the possibility of prices of petroleum-based materials increasing, and increased environmental awareness, biodegradable materials as a kind of green alternative have attracted more and more research attention. In this context, poly (lactic acid) has shown a unique combination of properties such as nontoxicity, biodegradability, biocompatibility, and good workability. However, examples of its known drawbacks include poor tensile strength, low elongation at break, poor thermal properties, and low crystallization rate. Lignocellulosic materials such as lignin and cellulose have excellent biodegradability and mechanical properties. Compounding such biomass components with poly (lactic acid) is expected to prepare green composite materials with improved properties of poly (lactic acid). This paper is aimed at summarizing the research progress of modification of poly (lactic acid) with lignin and cellulose made in in recent years, with emphasis on effects of lignin and cellulose on mechanical properties, thermal stability and crystallinity on poly (lactic acid) composite materials. Development of poly (lactic acid) composite materials in this respect is forecasted.

The Influence of Cooling Conditions on the Mechanical Properties of Commingled Yarn Composites

1996 ◽  
Vol 9 (1) ◽  
pp. 76-89 ◽  
Author(s):  
G. O. Shonaike ◽  
H. Hamada ◽  
Z. Maekawa ◽  
M. Matsuda ◽  
T. Yuba ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Cooling Conditions ◽  
Commingled Yarn

Effect of Filler Compositions on the Mechanical Properties of Bamboo Filled Polyester Composite

2014 ◽  
Vol 879 ◽  
pp. 90-95 ◽  
Author(s):  
Abdul Rahman Noor Leha ◽  
Nor Amalina Nordin
Keyword(s):  
Mechanical Properties ◽  
Flexural Strength ◽  
Impact Test ◽  
Compression Molding ◽  
Engineering Applications ◽  
Maximum Value ◽  
Polyester Composite ◽  
Bamboo Powder ◽  
Flexural Tests ◽  
The Impact

Biocomposite from bamboo powder was fabricated by compression molding technique. The objective of this study was to investigate the mechanical properties of bamboo compounded with epoxy with different ratio. Tensile and flexural tests were done to characterize its mechanical properties. It was observed that the strength of bamboo-polyester was increased with increasing amount of bamboo powder. The tensile and flexural strength shows the highest value at 25 wt.% bamboo. However, the impact test shows the maximum value at 20 wt.% bamboo powder. These results exhibit the bamboo-polyester can be a good candidate to be used in many engineering applications

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