scholarly journals A Study on the Dynamic Mechanical Properties of Silk Fibre Composites

2011 ◽  
Vol 410 ◽  
pp. 106-109
Author(s):  
Mei Po Ho ◽  
Hao Wang ◽  
Chun Kit Ho ◽  
Kin Tak Lau

Silk fibre has been popularly used for bio-medical engineering and surgically-operational applications because of its biocompatible and bio-resorbable properties for centuries. Using silk fibre as reinforcement for some bio-polymers to enhance the stiffness of scaffolding and bone implant plates has been developed. However, its dynamic mechanical properties with the biodegradable properties have not yet well understood. In this paper, the dynamic mechanical and thermal properties of degraded and non-degraded silk fibre reinforced Polylactic acid (PLA) composites are discussed.

2020 ◽  
Vol 8 (7) ◽  
pp. 833-843
Author(s):  
A. A. Mazlan ◽  
M. T. H. Sultan ◽  
S. N. A. Safri ◽  
N. Saba ◽  
A. U. M. Shah ◽  
...  

2014 ◽  
Vol 33 (17) ◽  
pp. 1625-1633 ◽  
Author(s):  
Fabien Duc ◽  
Pierre-Etienne Bourban ◽  
Jan-Anders E Månson

2005 ◽  
Vol 13 (5) ◽  
pp. 479-488 ◽  
Author(s):  
Sang Muk Lee ◽  
Seong Ok Han ◽  
Donghwan Cho ◽  
Won Ho Park ◽  
Seung Goo Lee

The influence of chopped fibre length on the mechanical and thermal properties of silk fibre ( Bombix mori) reinforced poly(butylene succinate) (PBS) biocomposites has been investigated in terms of tensile and flexural properties, thermal stability, thermal expansion, and dynamic mechanical properties. The chopped fibre lengths studied were 3.2 mm, 6.4 mm, 12.7 mm, and 25.4 mm. The results demonstrate that chopped silk fibres play an effective role in improving the mechanical properties of PBS in the present system. At a fixed fibre loading of 40 wt%, the tensile strength and modulus of the PBS control were improved by 69% and 228%, respectively, in comparison with those of the biocomposite reinforced with 25.4 mm silk fibres. The flexural strength and modulus of PBS were also greatly improved by 167% and 323%, respectively. The thermal properties of PBS resin increased when incorporating chopped silk fibres in the composite matrix. The biocomposites had much lower linear coefficient of thermal expansion (CTE) values and higher storage moduli than the PBS controls above the glass transition region, especially with reinforcing silk fibres of 25.4 mm long.


Author(s):  
MK Gupta

The aim of the present study is to investigate the dynamic mechanical and thermal properties of hybrid jute/sisal fibre reinforced epoxy composites. The hybrid composites were prepared by hand layup technique having total fibre loading of 30% by weight with different weight ratios of jute and sisal fibres. Dynamic mechanical properties such as storage modulus ([Formula: see text]), loss modulus ([Formula: see text]) and damping ([Formula: see text]) were investigated in the temperature range of 30–200 ℃. The thermal stability of the prepared composites was studied using thermogravimetric analysis. Other thermal properties such as glass transition temperature ( Tg), crystallization temperature ( Tc) and decomposition temperature ( Td) were also obtained by differential scanning calorimetry. The results indicated a positive effect of hybridization in terms of increase in dynamic mechanical and thermal properties. Storage modulus, loss modulus and Tg were found to be higher for hybrid composite having a higher percentage of jute fibres.


2021 ◽  
Vol 18 (1) ◽  
pp. 197
Author(s):  
Abdul Hakim Abdullah ◽  
Amerul Farhan Amri ◽  
Farrahshaida Mohd Salleh ◽  
Nurul Hayati Abdul Halim ◽  
‪Izdihar Tharazi

The aim of this study is to investigate the influence of fibre weight fraction on flexural and dynamic mechanical properties of Arenga pinnata fibre and its hybrid epoxy composites. In this work, four (4) composites configurations were fabricated using hand lay-out by varying fibre weight ratios between Arenga pinnata (AP) and glass fibre (GF); AP100% - 0%GF, AP70% - 30%GF, AP30% - 70%GF and AP0% - 100%GF, respectively. The flexural modulus indicates that the pure Arenga pinatta composites (AP100%-0%GF) are stronger than both hybrid and pure glass fibre composites (AP0%-100%GF). Increasing fibre weight fraction of glass fibre has resulted lower flexural properties. By dynamic mechanical analysis (DMA), storage modulus of pure Arenga pinnata composites is always higher and have better thermal resistance as compared to the pure glass fibre composites. The result indicates that that Arenga pinatta fibre reinforced with epoxy composites have a great opportunity similar to that glass fibres composites counterpart in engineering application.


2020 ◽  
pp. 004051752094424
Author(s):  
Wei Wang ◽  
Liu Liu ◽  
Ning Ding ◽  
Ruiyun Zhang ◽  
Jianyong Yu

Bio-based materials have attracted great attention due to their good mechanical properties, biodegradability, low cost, and easy processing, especially abundant resources. In this work, polypropylene (PP) composites reinforced with 15, 30 and 45 wt% wood powder (WP) were prepared by injection molding and their thermal, mechanical, and dynamic mechanical properties were characterized. It was found that the strength and modulus of the composite materials in the tensile and bending tests significantly increased, but the impact strength decreased. The dynamic mechanical test also showed that the storage modulus increased with the increase of WP content. WP endowed the composite material with rigidity and strength, but it was not good for toughness. Besides, the addition of WP did not change the crystal structure of the composites, while the degree of crystallinity decreased. WP-filled PP composites with stable mechanical and thermal properties have great potential to replace traditional glass fiber-reinforced composites in many fields such as construction, sports equipment, and the automotive industry.


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