Solvent effect of water on S-glass

Hsu, Andrew C. T.; Jemian, Wartan A.; Wilcox, R.C.

doi:10.1007/bf02403360

Cited by 5 publications

(1 citation statement)

References 6 publications

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“…In the water where PBT-GF30 was immersed, there were also groups associated with the hydrolysis of glass fiber. These results indicate a hydrolysis of the fiber at high temperatures for long immersion times, which had been also detected by Hsu et al [ 33 ].…”

Section: Introductionsupporting

confidence: 86%

Effect of Water Ingress on the Mechanical and Chemical Properties of Polybutylene Terephthalate Reinforced with Glass Fibers

et al. 2021

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Short fiber reinforced polymers are widely used in the construction of electronic housings, where they are often exposed to harsh environmental conditions. The main purpose of this work is the in-depth study and characterization of the water uptake behavior of PBT-GF30 (polybutylene terephthalate with 30% of short glass fiber)as well as its consequent effect on the mechanical properties of the material. Further analysis was conducted to determine at which temperature range PBT-GF30 starts experiencing chemical changes. The influence of testing procedures and conditions on the evaluation of these effects was analyzed, also drawing comparisons with previous studies. The water absorption behavior was studied through gravimetric tests at 35, 70, and 130 ∘C. Fiber-free PBT was also studied at 35 ∘C for comparison purposes. The effect of water and temperature on the mechanical properties was analyzed through bulk tensile tests. The material was tested for the three temperatures in the as-supplied state (without drying or aging). Afterwards, PBT-GF30 was tested at room temperature following water immersion at the three temperatures. Chemical changes in the material were also analyzed through Fourier-transform infrared spectroscopy (FTIR). It was concluded that the water diffusion behavior is Fickian and that PBT absorbs more water than PBT-GF30 but at a slightly higher rate. However, temperature was found to have a more significant influence on the rate of water diffusion of PBT-GF30 than fiber content did. Temperature has a significant influence on the mechanical properties of the material. Humidity contributes to a slight drop in stiffness and strength, not showing a clear dependence on water uptake. This decrease in mechanical properties occurs due to the relaxation of the polymeric chain promoted by water ingress. Between 80 and 85 ∘C, after water immersion, the FTIR profile of the material changes, which suggests chemical changes in the PBT. The water absorption was simulated through heat transfer analogy with good results. From the developed numerical simulation, the minimum plate size to maintain the water ingress unidirectional was 30 mm, which was validated experimentally.

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Section: Introductionsupporting

confidence: 86%

Effect of Water Ingress on the Mechanical and Chemical Properties of Polybutylene Terephthalate Reinforced with Glass Fibers

et al. 2021

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Impact strength of recycled thermoplastic composites subjected to corrosive environment

et al. 2008

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The objective of the present study is to investigate the effect of hygrothermal aging on the impact strength of virgin and recycled commercial polyphenylenesulfide (PPS) matrix composites reinforced with 40% by weight of short glass fibres after water absorption at different pH and temperature environments. This study is part of a long‐term strategy for developing a sound methodology for reusing short fiber‐reinforced thermoplastic materials. Hygrothermal aging has been conducted so as to represent actual service conditions identified for the components made from these recycled materials. Taking into account the corrosive nature of the service environment in which the aforementioned components are required to operate, a study of the recycled material impact strength as a function of the environmental conditions to which they are subjected, is deemed indispensable before using them for the manufacturing of new products. The results of the present study showed a great effect of the various parameters studied such as, water temperature, alkaline or acidic nature of the environment, andtype of the coupling agent used on the impact behavior of the PPS‐glass fiber composites investigated. POLYM. COMPOS., 2008. © 2008 Society of Plastics Engineers

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HPHT Hot-Wet Resistance of Reinforcement Fibers and Fiber-Resin Interface of Advanced Composite Materials

Yuan

Ren

Campo

2016

Conference Proceedings of the Society for Experimental Mechanics Series

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Solvent effect of water on S-glass

Cited by 5 publications

References 6 publications

Effect of Water Ingress on the Mechanical and Chemical Properties of Polybutylene Terephthalate Reinforced with Glass Fibers

Effect of Water Ingress on the Mechanical and Chemical Properties of Polybutylene Terephthalate Reinforced with Glass Fibers

Impact strength of recycled thermoplastic composites subjected to corrosive environment

HPHT Hot-Wet Resistance of Reinforcement Fibers and Fiber-Resin Interface of Advanced Composite Materials

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