Friday 12 August 2016

Spectroscopic Study of Poly Vinylidene Fluoride/Poly Methyl Methacrylate Blend

The conservation and protection of historic monuments or culturally significant structures have recently attracted much attention from material scientists. A few years ago, various synthetic polymers have been widely used in the treatment of construction materials of historical monuments for consolidation and conservation of such structures. Using polymeric coatings for this area has created serious challenges for the surface science and technology. Some of the challenges are as follows.

Van Hees and Brocken evaluated the salt growth in brick masonry specimens, coated with a water repellent, during a salt crystallization test. They demonstrated that the behavior of different salts on development of salt damages is completely different. However, it is demonstrated that the adsorption of dusts suspensions and watersoluble air pollutants decreases with increasing hydrophobicity of the surface of building materials.


The fluorine substitution of the hydrogen atoms present in a macromolecular chain improves the heat resistance and chemical resistance, delays or inhibits flame propagation, lowering the critical surface tension and exalts the dielectric characteristics.Acrylic resins undergo deterioration face conditions under UV radiation and their climatic exposure causes degradation of their structure. However, their physical characteristics and low price always consider important research topics. In this research work, the focus was on the development of films of PVDF and PMMA blends and their spectroscopic analysis (FTIR and UV-visible spectroscopy).

No comments:

Post a Comment