Atmospheric plasma fluorination as a means to improve the mechanical properties of short-carbon fibre reinforced poly (vinylidene fluoride)

作者：Ho Kingsley K C; Kolliopoulos Alexandros; Lamoriniere Steven; Greenhalgh Emile S; Bismarck Alexander^*

来源：Composites Part A: Applied Science and Manufacturing , 2010, 41(9): 1115-1122.

DOI：10.1016/j.compositesa.2010.04.009

• Carbon fibre
• Mechanical properties
• Mechanical testing
• Injection moulding

The impact of fluorination of carbon fibres on the properties of short fibre reinforced polyvinylidene fluoride (PVDF) composites was studied As received and continuously atmospheric plasma fluorinated (APF) carbon fibres were cut to an average fibre length of 2 mm. Short fibre composites (SFC) containing 5, 10 and 15 wt.% carbon fibres were manufactured using a twin-screw mixer. Test specimens were produced by injection moulding The mechanical properties of the SFC were studied using tensile and compression testing As expected, the incorporation of short-carbon fibres into PVDF led to an increase in strength and stiffness The tensile strength and Young's modulus of the SFC containing APF-treated carbon fibres increased by up to 17% and 190%, respectively. Furthermore, the compressive strength and modulus of the SFC containing APF-treated carbon fibres also increased by 19% and 35%. respectively APF of carbon fibres results only in a marginal increase in the bulk matrix crystallinity of PVDF as determined by DSC Scanning electron micrographs of fracture surfaces from tensile tested specimens exhibited a typical brittle failure mode with low fibre loading fraction. Despite the presence of up to 5% of voids and visible resin rich regions at

• 出版日期2010-9