Effect of moisture absorption on the mechanical properties of Kolon/ epoxy composites
Само за регистроване кориснике
2021
Аутори
Obradović, VeraBajić, Danica
Sejkot, Petr
Fidanovski, Bojana
Machalická, Klára V.
Vokáč, Miroslav
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The para-aramid fibres (Kevlar, Twaron, Kolon) are high performance polymeric fibres characterized by their high tenacity, strength to weight ratio and impact resistance. They are used for the soft body armour structures in ballistics and for the manufacture of parts in aerospace and automotive industry.
In this study, the specimens were made from the two-layered Kolon fabrics impregnated with epoxy resin where some silicon carbide (SiC) microparticles or SiC nanofibres were added as reinforcement. These composite specimens
were fabricated by hot compression and curing of epoxy resin.
Despite their good mechanical strength it is a well-known fact that the mechanical properties of epoxy resins are affected by moisture absorption. The tensile and impact properties of the untreated specimens were compared with the ones that underwent water absorption in the duration of 72h (immersion or humidity) followed by desorption. The immersion of the specimens in water and the exposure to high h...umidity (70%) were completed in accordance with the ISO 62 standard while the tensile test was performed according to the ASTM D 3039 standard. Furthermore, the tensile test simulation of the Kolon/epoxy composite by using software Abaqus® was accomplished.
For the determination of the absorbed impact energy and the impact toughness of the composite specimens, an impact test was performed by using the Charpy impact pendulum in accordance with the ASTM D5942 standard.
Извор:
Book of poster Abstracts / 15th International conference on materials chemistry (MC15) - online, United Kingdom, July 12-15, 2021, 2021, P104-Издавач:
- Royal Society of Chemistry
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200287 (Иновациони центар Технолошко-металуршког факултета у Београду доо) (RS-MESTD-inst-2020-200287)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200325 (Војнотехнички институт - ВТИ, Београд) (RS-MESTD-inst-2020-200325)
- Czech Science Foundation (GA 18-10907S)
- COST Action CA18120
Институција/група
Inovacioni centarTY - CONF AU - Obradović, Vera AU - Bajić, Danica AU - Sejkot, Petr AU - Fidanovski, Bojana AU - Machalická, Klára V. AU - Vokáč, Miroslav PY - 2021 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7076 AB - The para-aramid fibres (Kevlar, Twaron, Kolon) are high performance polymeric fibres characterized by their high tenacity, strength to weight ratio and impact resistance. They are used for the soft body armour structures in ballistics and for the manufacture of parts in aerospace and automotive industry. In this study, the specimens were made from the two-layered Kolon fabrics impregnated with epoxy resin where some silicon carbide (SiC) microparticles or SiC nanofibres were added as reinforcement. These composite specimens were fabricated by hot compression and curing of epoxy resin. Despite their good mechanical strength it is a well-known fact that the mechanical properties of epoxy resins are affected by moisture absorption. The tensile and impact properties of the untreated specimens were compared with the ones that underwent water absorption in the duration of 72h (immersion or humidity) followed by desorption. The immersion of the specimens in water and the exposure to high humidity (70%) were completed in accordance with the ISO 62 standard while the tensile test was performed according to the ASTM D 3039 standard. Furthermore, the tensile test simulation of the Kolon/epoxy composite by using software Abaqus® was accomplished. For the determination of the absorbed impact energy and the impact toughness of the composite specimens, an impact test was performed by using the Charpy impact pendulum in accordance with the ASTM D5942 standard. PB - Royal Society of Chemistry C3 - Book of poster Abstracts / 15th International conference on materials chemistry (MC15) - online, United Kingdom, July 12-15, 2021 T1 - Effect of moisture absorption on the mechanical properties of Kolon/ epoxy composites SP - P104 UR - https://hdl.handle.net/21.15107/rcub_technorep_7076 ER -
@conference{ author = "Obradović, Vera and Bajić, Danica and Sejkot, Petr and Fidanovski, Bojana and Machalická, Klára V. and Vokáč, Miroslav", year = "2021", abstract = "The para-aramid fibres (Kevlar, Twaron, Kolon) are high performance polymeric fibres characterized by their high tenacity, strength to weight ratio and impact resistance. They are used for the soft body armour structures in ballistics and for the manufacture of parts in aerospace and automotive industry. In this study, the specimens were made from the two-layered Kolon fabrics impregnated with epoxy resin where some silicon carbide (SiC) microparticles or SiC nanofibres were added as reinforcement. These composite specimens were fabricated by hot compression and curing of epoxy resin. Despite their good mechanical strength it is a well-known fact that the mechanical properties of epoxy resins are affected by moisture absorption. The tensile and impact properties of the untreated specimens were compared with the ones that underwent water absorption in the duration of 72h (immersion or humidity) followed by desorption. The immersion of the specimens in water and the exposure to high humidity (70%) were completed in accordance with the ISO 62 standard while the tensile test was performed according to the ASTM D 3039 standard. Furthermore, the tensile test simulation of the Kolon/epoxy composite by using software Abaqus® was accomplished. For the determination of the absorbed impact energy and the impact toughness of the composite specimens, an impact test was performed by using the Charpy impact pendulum in accordance with the ASTM D5942 standard.", publisher = "Royal Society of Chemistry", journal = "Book of poster Abstracts / 15th International conference on materials chemistry (MC15) - online, United Kingdom, July 12-15, 2021", title = "Effect of moisture absorption on the mechanical properties of Kolon/ epoxy composites", pages = "P104", url = "https://hdl.handle.net/21.15107/rcub_technorep_7076" }
Obradović, V., Bajić, D., Sejkot, P., Fidanovski, B., Machalická, K. V.,& Vokáč, M.. (2021). Effect of moisture absorption on the mechanical properties of Kolon/ epoxy composites. in Book of poster Abstracts / 15th International conference on materials chemistry (MC15) - online, United Kingdom, July 12-15, 2021 Royal Society of Chemistry., P104. https://hdl.handle.net/21.15107/rcub_technorep_7076
Obradović V, Bajić D, Sejkot P, Fidanovski B, Machalická KV, Vokáč M. Effect of moisture absorption on the mechanical properties of Kolon/ epoxy composites. in Book of poster Abstracts / 15th International conference on materials chemistry (MC15) - online, United Kingdom, July 12-15, 2021. 2021;:P104. https://hdl.handle.net/21.15107/rcub_technorep_7076 .
Obradović, Vera, Bajić, Danica, Sejkot, Petr, Fidanovski, Bojana, Machalická, Klára V., Vokáč, Miroslav, "Effect of moisture absorption on the mechanical properties of Kolon/ epoxy composites" in Book of poster Abstracts / 15th International conference on materials chemistry (MC15) - online, United Kingdom, July 12-15, 2021 (2021):P104, https://hdl.handle.net/21.15107/rcub_technorep_7076 .