Our site uses cookies necessary for its proper functioning. To improve your experience, other cookies may be used: you can choose to disable them. This can be changed at any time via the Cookies link at the bottom of the page.

A study assessing the performance of O-PVC in pressure pipes



Plastic Pipes Conference Association # 2012 Barcelona

Catherine Michel, Johannes Akkerman

Bi-axially oriented PVC (referred to as O-PVC) pressure pipes have outstanding mechanical properties. Tensile strength and E-modulus increase significantly with the stretching ratio. On the other side, the elongation at break decreases with the draw ratio. O-PVC pipes have also much better impact resistance especially at low temperatures. Pressure and impact testing also demonstrated that the mechanical performance of O-PVC is not affected by notching. Structural changes occurring in the PVC due to orientation were examined by thermal analysis and microscopy. It was shown that neither the total level of crystallinity nor the gelation levels were significantly different from conventional U-PVC. Further benefits of using O-PVC in pressure pipes are clearly demonstrated. The positive impact on environmental indicators such as energy and CO2 release was also shown. Keywords : pressure pipe, oriented Polyvinyl Chloride (PVC), stretching ratio, tensile properties, environmental indicator.

Please note that the whole article content is available on PPCA website only :

Related papers


Author(s) : Gerald Pinter, Johannes Wiener, Florian Arbeiter, Abhishek Tiwari, Otmar Kolednik

For pipe applications, catastrophic failure due to crack growth has to be prevented by all means. Techniques to develop new and even tougher pipe materials are explored in this contribution. The aim is to create a multi-layer architecture, that exhibits high toughness as well as damage tolerance towards sharp notches....

2018 Las-Vegas : Biofilm growth and the impact it has on the hydraulic capacity of pipelines

Author(s) : Stefanus Johannes van Vuuren

Biofilm establishes itself over a short period of time in all pipelines conveying raw and treated water. Depending on the type of biofouling, it is documented that it will inevitability lead to a reduction in the hydraulic capacity. Since none of the current design relationships used to calculate the friction loss in...

2018 Las-Vegas : Biomimetic design concepts for the pipe architecture of tomorrow

Author(s) : Gerald Pinter, Florian Arbeiter, Johannes Wiener, Andreas Frank, Otmar Kolednik

In order to further increase the fracture toughness of pipes, biomimetic layer design of the pipe wall can be used. Therein, soft polymer interlayers can act as crack-arresters in a matrix of stiffer and inherently more brittle polymers. The effectiveness of the crack arresting role of soft interlayers in a...

2016 Berlin : Can PE and PVC gas distribution pipes withstand the impact of sustainable gases?

Author(s) : René Hermkens, Ernst van der Stok, Johannes de Bruin, Jeroen Weller

The replacement of fossil fuels like natural gas by sustainable gases such as biogas and hydrogen can mitigate global warming. There has been some debate about the impact of sustainable gases on the materials used in the gas grid. An extensive study of the behaviour of PE, PVC, POM and rubber materials was therefore...

2016 Berlin : Expanding the application range of high density polyethylene for use as an inner-liner material in reinforced thermoplastic pipe and steel pipe

Author(s) : Johannes de Bruin, Dr. Bert Dalmolen, Albo van Hateren

Normal High Density Polyethylene (HDPE) is commonly used as the fluid contacting element, or the “inner-liner”, in Reinforced Thermoplastic Pipes (RTP) and steel pipes up to 65 ºC. Through a modification of the HDPE polymer matrix, by adding nanoparticles, the E-modulus can be increased. Research shows that...

Members of the Association

BOREALISBOROUGEFormosa Plastics CorporationHanwha TotalEnergiesINEOS O&PIRPCKorea Petrochemical IND. Co., LTD (KPIC)LyondellBasellORLEN UnipetrolPetroChina Dushanzi Petrochemical CompanyPRIME POLYMERSABICSCG Chemicals & Thai PolyethyleneSinopecTASNEE