Impact Strength of Glass-Fibre Composites

2000 ◽  
Author(s):  
C Guedes Soares ◽  
Keyword(s):  
Impact Strength ◽  
Glass Fibre ◽  
Fibre Composites

scholarly journals Evaluation of Dispersion Methods and Mechanical Behaviour of Glass Fibre Composites with Embedded Self-Healing Systems

Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1642
Author(s):  
Ionut Sebastian Vintila ◽  
Sorin Draghici ◽  
Horia Alexandru Petrescu ◽  
Alexandru Paraschiv ◽  
Mihaela Raluca Condruz ◽  
...  
Keyword(s):  
Impact Strength ◽  
Thermal Cycling ◽  
Glass Fibre ◽  
Mechanical Behaviour ◽  
Epoxy Matrix ◽  
Impact Testing ◽  
Self Healing ◽  
Dispersion Method ◽  
Fibre Composites ◽  
The Impact

The present paper is focused on evaluating the most suitable dispersion method in the epoxy matrix of two self-healing systems containing dicyclopentadiene (DCPD) and 5-ethylidene-2-norbornene (ENB) monomers encapsulated in a urea-formaldehyde (UF) shell, prior to integration, fabrication and impact testing of specimens. Both microstructural analysis and three-point bending tests were performed to evaluate and assess the optimum dispersion method. It was found that ultrasonication damages the microcapsules of both healing systems, thus magnetic stirring was used for the dispersion of both healing systems in the epoxy matrix. Using magnetic dispersion, 5%, 7%, 10%, 12% and 15% volumes of microcapsules were embedded in glass fibre composites. Some of the samples were subjected to thermal cycling between −20 °C and +100 °C for 8 h, to evaluate the behaviour of both healing systems after temperature variation. Impact test results showed that the mechanical behaviour decreases with increasing microcapsule volume, while for specimens subjected to thermal cycling, the impact strength increases with microcapsule volume up to 10%, after which a severe drop in impact strength follows. Retesting after 48 h shows a major drop in mechanical properties in specimens containing 15% MUF-ENB microcapsules, up to total penetration of the specimen.

Manufacture of Sheets Using Post-Consumer Unsaturated Polyester Resin/Glass Fibre Composites

2002 ◽  
Vol 18 (2) ◽  
pp. 111-125 ◽  
Author(s):  
A. G. Pedroso ◽  
D. S. Rosa ◽  
T. D. Z. Atvars
Keyword(s):  
Glass Fibre ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Impact Resistance ◽  
Weight Ratio ◽  
High Volume ◽  
Volume Weight ◽  
Fibre Composites ◽  
Powdered Composite ◽  
Resin Curing

The storage of post-consumer unsaturated polyester/glass fibre composites impacts negatively on the environment due to its persistence (long lifetime of both the glass fibre and the resin) as well as the high volume/weight ratio of the residues. In this work we introduce a new approach for the recycling process of artefacts made of these polyester/glass fibre composites that involves the dispersion of the ground, not powdered, composite in raw polyester resin. Room temperature resin curing was employed. Flexural and impact tests were performed to optimize the processing conditions and the manufacturing process. Significant improvement in texture, flexural strength and impact resistance of sheets were achieved by pressing and heating the sheets at 40∞C and 50∞C during curing. The artefacts utilized in our work were post-consumer public telephone weather protector caps, which, in Brazil, are manufactured with a composite of unsaturated polyester/glass fibre. Although we used this specific artefact, the methodology can be extended to different types of post-consumer materials or industrial scraps.

Phosphate Glass Fibre Composites for Bone Repair

2009 ◽  
Vol 6 (4) ◽  
pp. 318-323 ◽  
Author(s):  
Andrew J. Parsons ◽  
Ifty Ahmed ◽  
Papia Haque ◽  
Ben Fitzpatrick ◽  
Muhammad I. K. Niazi ◽  
...  
Keyword(s):  
Phosphate Glass ◽  
Glass Fibre ◽  
Bone Repair ◽  
Fibre Composites

scholarly journals Non-isothermal crystallization, yellowing resistance and mechanical properties of heat-resistant nylon 10T/66/titania dioxide/glass fibre composites

RSC Advances ◽  
2019 ◽  
Vol 9 (13) ◽  
pp. 7057-7064 ◽  
Author(s):  
Bingxiao Liu ◽  
Guosheng Hu ◽  
Jingting Zhang ◽  
Wen Yan
Keyword(s):  
Mechanical Properties ◽  
Glass Fibre ◽  
Isothermal Crystallization ◽  
Heat Resistant ◽  
Fibre Composites

Herein, we report novel heat-resistant nylon 10T/66/titania dioxide/glass fibre (nylon 10T/66/TiO2/GF) composites based on as-synthesised nylon 10T/66, which is a copolymer of poly(decamethylene terephthalamide) (nylon 10T).

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