Effect of UV Radiation to Change the Properties of the Composite PA+GF

The development of composite materials and the related design and manufacturing technologies is one of the most important advances in the history of materials. Composites are multifunctional materials having unprecedented mechanical and physical properties that can be tailored to meet the requirements of a particular application. Some composites also exhibit great resistance to high-temperature corrosion, oxidation, and wear. Polymers are widely used indoors and outdoors, therefore they are exposed to a chemical environment which may include atmospheric oxygen, acidic fumes, acidic rain, moisture heat and thermal shock, ultra-violet light, high energy radiation, etc. Different polymers are affected differently by these factors even though the amorphous polymers are more sensitive. Ageing is also important and it is defined as the process of deterioration of engineering materials resulting from the combined effects of atmospheric radiation, heat, oxygen, water, microorganisms and other atmospheric factors.




References:
[1] C. Zweben, Mechanical Engineer's Handbook, Composite Materials and
Mechanical, 2nd ed., John Wiley & Sons, Inc., New York, 1998.
[2] A. K. van der Vegt: From polymers to plastics, DUP Blue Print 2002, p.
240.
[3] A. Swiatek et al., Distribution and geometric characteristic of pores and
the strength properties of extrudates obtained by the twin-screw
extrusion, in Material science, 2014, vol. 49, p. 812-818.
[4] High Performance Composites Source Book 2001, Ray Publishing.
[5] K. L. Loewenstein, The Manufacturing Technology of Continuous Glass
Fibers, 3rd revised ed., Elsevier, 1993.
[6] F. T. Wallenberger, Structural Silicate and Silica Glass Fibers, in
Advanced Inorganic Fibers Processes, Structures, Properties,
Applications, F.T. Wallenberger, Ed., Kluwer Academic Publishers,
1999, p 129–168.
[7] F. T. Wallenberger, Melt Viscosity and Modulus of Bulk Glasses and
Fibers: Challenges for the Next Decade, in Present State and Future
Prospects of Glass Science and Technology, Proc. of the Norbert Kreidl
Symposium (Triesenberg, Liechtenstein), 1994, p 63–78.
[8] “Standard Specification for Glass Fiber Strands”, D 578-98, Annual
Book of ASTM Standards, ASTM.
[9] P. K. Gupta, Glass Fibers for Composite Materials, Fibre
Reinforcements for Composite Materials, A.R. Bunsell Ed., Elsevier
Publishers, 1988, p 19–72.