2006•China Plastics IndustryRequires access
Study of Aging Mechanism of GIass Fibre Reinforced Polyamide
LV Gui-ying
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Abstract
The influence of irradiation time on the moisture absorption, mechanical properties and morphology of the PA 66 reinforced by glass fiber were studied by means of ultraviolet accelerator, and the aging mechanism of the glass fiber reinforced PA 66 was inquired. The results showed the moisture absorption of the aged PA 66 reinforced by glass fiber was much lower than that of the non-reinforced one, the tensile strength and bending strength of the reinforced one were improved obviously, and the retention rate of the mechanical properties of the aged PA 66 reinforced by glass fiber was high. The aging mechanism of the glass fiber reinforced PA 66 was that the glass fiber might stop the further extension of the cracking of PA, and prevent PA from the erosion by outside factors, slowing down the aging.