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Polyvinyl chloride (PVC) is the third most common synthetic polymer after polyethylene (PE) and polypropylene (PP). PVC is a lightweight plastic that is used in the construction. Addition of lubricants makes this material softer and more flexible than plastics. If no lubricants or plasticizers are added to it, the resulting material is known as UPVC (unplasticized polyvinyl chloride). UPVC has high chemical resistance across its working temperature range, with a wide range of operating pressures. Due to some features including long-term strength, high stiffness and affordability, UPVC systems are widely used in plastic fittings and pipes. It has been demonstrated that the addition of nanoparticles significantly improves the strength and stiffness of UPVC.
Particularly in wastewater transfer systems
Addition of nanoparticles significantly improves the strength and stiffness of UPVC. The evaluation of impact property was performed according to ISIRI 9119.
ISIRI 9119: plastics-Unplasticized poly (vinyl chloride) (PVC-U) pipe, fittings and piping system for soil and waste discharge within building structure- specifications.
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Unplasticized polyvinyl chloride (UPVC) is one of the lightweight polymers that have high strength and impact resistance. Pipes and fittings made of this material exhibit excellent resistance in corrosive environments. Nano-scale fillers due to their high specific surface area give these polymers unique properties. Addition of nanoparticles to the UPVC polymer improves its mechanical and physical properties. This product is a nanocomposite 90 degree elbow, in which the addition of nanoparticles has improved the impact resistance, thermal stability and Vicat softening temperature.
Water pipes are mainly used for water supply, sewage and drainage applications. These pipes are made of polyvinyl chloride (PVC) which widely used in buildings. Addition of lubricants makes this material softer and more flexible than plastics. If no lubricants or plasticizers are added to it, the resulting material is known as UPVC. The chemical resistance of this polymer has made it suitable for wide applications in different industries, especially the pipe industry. These pipes are supposed to have chemical and corrosion resistance, high elasticity modulus and flexibility, longterm tensile strength, high strength to weight ratio and wear resistance. However, it should be noted that these pipes can be fragile when exposed to cold weather. Besides, they can be deformed and lose their strength because of high temperature. Addition of appropriate nanoparticles can obviate these deficiencies and improve their properties.
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