Effect of Water Absorption on Tribological Properties of Thermoplastics Matrix Composites Reinforced with Glass Fibres
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Data
2022
Inny tytuł
Typ
Artykuł recenzyjny
Redaktor
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Dyscyplina PBN
Informatyka techniczna i telekomunikacja
Czasopismo lub seria
Advances in Science and Technology Research Journal
ISSN
2080-4075
2299-8624
2299-8624
ISBN
DOI
10.12913/22998624/147515
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Tytuł monografii
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Abstrakt (en)
The present work investigated the water absorption of thermoplastic matrix composites and their eff ect on tribolo gical behaviour. Four thermoplastic composites were researched based on Polyamide 6 and Polyamide 66 matrix reinforced with glass fi bres. The composites fabricated using the injection moulding technique were immersed in distilled water at room temperature for a water absorption test for 14 days. Dry sliding wear was conducted using a ball-on-disc trbiotester. The coeffi cient of friction (COF) and the wear rate (K) was determined. The sliding trace was analyzed using a scanning electron microscope (SEM) to reveal the sliding wear mechanism of composites. Studies have shown that polyamide PA6 based composites are less prone to absorb water than PA66 matrix. In addition, the composites richer in fi breglass exhibit lower water absorption. Tribological results indicated that polymer composites showed higher COF and K after water absorption testing. Mean COF and K were in the range of 0.071÷0.321 and 2.51∙10-6÷1.81∙10-4 mm3 N-1m-1, respectively. Wear traces SEM analysis revealed that untreated samples are characterized by less intense abrasive and adhesive wear mode than the hydrated polymers. Besides, the degradation process took place primarily at the polymer matrix-fi breglass interfaces.