Detail publikace

Short-beam strength of GF/polyester composites and their durability to aqueous environments

Bálková, R., Čech, V., Přikryl, R., Vaněk, J.

Originální název

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

Pultruded and hand lay-up glass fiber (GF)/polyester composites have been exposed to cold (25 °C) and hot (98 °C) distilled water for 1 year and 60 hours, respectively, to evaluate an interfacial contribution to hygrothermal behavior of the composites reinforced by commercially sized (silane coupling agents) and unsized glass fibers. Short beam strength, used to characterize an interfacial degradation on macroscopic scale, decreased by about 20 % and 50 % after one-year exposure in cold water and 60-h exposure in hot water, respectively, for composites reinforced by sized fibers. Commercial sizing formed strong interfaces and the absorbed moisture influenced just the matrix morphology and its structure inspected by SEM. However, long-term water exposure or hot water deteriorated a joint at the interface and caused decrease of shear properties. Hot water accelerated water diffusion process as evidenced by higher diffusion coefficients. A steeper decrease of short beam strength with time was observed for all samples exposed to hot water with respect to cold one.

Klíčová slova

key

Autoři

Bálková, R., Čech, V., Přikryl, R., Vaněk, J.

Rok RIV

2004

Vydáno

1. 1. 2004

Místo

Maďarsko

Strany od

Strany do

Strany počet

BibTex

@inproceedings{BUT17604,
  author="Radka {Bálková} and Vladimír {Čech} and Radek {Přikryl} and Jan {Vaněk}",
  title="Short-beam strength of GF/polyester composites and their durability to aqueous environments",
  booktitle="Proc. Reinforced Plastics 2004",
  year="2004",
  pages="4",
  address="Maďarsko"
}