Anti-icing epoxy resin surface modified by spray coating of PTFE Teflon particles for wind turbine blades

2020 ◽  
Vol 22 ◽  
pp. 100770 ◽  
Author(s):  
Chao (Chris) Qin ◽  
Alan T. Mulroney ◽  
Mool C. Gupta
Keyword(s):  
Wind Turbine ◽  
Epoxy Resin ◽  
Turbine Blades ◽  
Spray Coating ◽  
Wind Turbine Blades ◽  
Surface Modified

scholarly journals Occupational Allergic Contact Dermatitis in Wind Turbine Blades Production

2021 ◽  
Vol 79 (3) ◽  
pp. 217-220
Author(s):  
Diogo Laertes Correia ◽  
Jéssica Peres ◽  
Joana Calvão ◽  
Mariana Ferreira Bastos ◽  
Ricardo Silva ◽  
...  
Keyword(s):  
Contact Dermatitis ◽  
Wind Turbine ◽  
Epoxy Resin ◽  
Allergic Contact Dermatitis ◽  
Patch Test ◽  
Turbine Blades ◽  
Wind Turbine Blades ◽  
Hand Dermatitis ◽  
Allergic Contact ◽  
Airborne Dermatitis

Introduction: Epoxy resins, widely used in several industrial sectors, are among the main causes of allergic contact dermatitis. The wind turbine production industry is one of the sectors that uses these products widely. This study aimed to assess the prevalence of contact allergy to epoxy resin and its components among wind turbine blades production workers with suspected contact dermatitis. Methods: We performed a retrospective analysis of the patch test results performed between 2012 and 2019 in wind turbine blades production workers with dermatitis and characterized their demographic and clinical data, patch test results and the occupational impact of allergic contact dermatitis on these workers. Results: Out of the 3049 patients patch tested in the period 2012-2019, we identified thirteen wind turbine blades production workers, predominantly male (69.2%). All of them handled glues, resins and/or paints in their daily work activities. Seven (53.8%) had a combination of hand dermatitis and airborne dermatitis, two (15.4%) had exclusively hand dermatitis and four (30.8%) had predominantly airborne dermatitis. All patients had positive patch test for epoxy resin and ten patients (76.9%) had also reaction for 1,6-hexanediol diglycidylether. Two patients (15.4%) also had a reaction to the already hardened resin powder. Four (30.8%) patients had to quit their jobs due to allergic contact dermatitis and three (23.1%) were transferred to another workstation without exposure to epoxy resin. Avoidance of exposure resulted in a significant improvement. Conclusion: With this study, we confirmed that epoxy resin and its components are the main cause of dermatitis among wind turbine blades production workers, that eczema occurs by direct contact and by airborne exposure.

scholarly journals Novel Engineered Materials: Epoxy Resin Nanocomposite Reinforced with Modified Epoxidized Natural Rubber and Fibers for Low-Speed Wind Turbine Blades

Polymers ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2761
Author(s):  
Chainuson Kasagepongsan ◽  
Sunisa Suchat
Keyword(s):  
Natural Rubber ◽  
Wind Turbine ◽  
Epoxy Resin ◽  
Glass Fibers ◽  
Turbine Blades ◽  
Accelerated Aging ◽  
Epoxidized Natural Rubber ◽  
Uvb Radiation ◽  
Wind Turbine Blades ◽  
Weathering Resistance

The objective of this study was to investigate nanocomposite materials with good outdoor resistance for wind turbine blade application. The nanocomposites based on epoxy resin with 5% of epoxidized natural rubber (ENR 50), 3% of nanofiller, and glass fibers, were subjected to experiments. The weathering resistance of nanocomposites was evaluated from the change in mechanical properties caused by accelerated aging, induced by UVB radiation in a weathering chamber. The accelerated aging improved tensile strength by about 35% at 168 h of exposure to UVB, via a curing effect. The nanocomposites were optimized for all the parts of wind turbine blades (Savonius and Darrieus types) that are generally designed for high strength, low weight, weathering resistance, and low rotational speed (2 m/s). A tree wind turbine with nanocomposite blades produced 5 kW power output when tested. Based on the findings in this work, the innovative nanocomposites have potential in manufacturing wind turbines to generate electricity.

Experiments of Wind Turbine Blades with Rocket Triggered Lightning

2009 ◽  
Vol 129 (5) ◽  
pp. 689-695
Author(s):  
Masayuki Minowa ◽  
Shinichi Sumi ◽  
Masayasu Minami ◽  
Kenji Horii
Keyword(s):  
Wind Turbine ◽  
Turbine Blades ◽  
Wind Turbine Blades ◽  
Triggered Lightning

Folding of flexible hinges for aircraft wingtips and wind turbine blades

2021 ◽  
Author(s):  
Aileen G. Bowen Perez ◽  
Giovanni Zucco ◽  
Paul Weaver
Keyword(s):  
Wind Turbine ◽  
Turbine Blades ◽  
Wind Turbine Blades

Evaluation of the influence of wind speed and angle of attack on the aerodynamic effect of wind turbine blades

2017 ◽  
Author(s):  
Salete Alves ◽  
Luiz Guilherme Vieira Meira de Souza ◽  
Edália Azevedo de Faria ◽  
Maria Thereza dos Santos Silva ◽  
Ranaildo Silva
Keyword(s):  
Wind Speed ◽  
Wind Turbine ◽  
Turbine Blades ◽  
Angle Of Attack ◽  
Wind Turbine Blades ◽  
Aerodynamic Effect
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