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.


Polyolefin pipe grades with improved resistance to water disinfectants [PE]

 

Plastic Pipes Conference Association # 2010 Vancouver

H.Vogt

Water is essential for human life. More than one billion people worldwide do not have access to safe water supply. The World Health Organization (WHO) estimates that more than 4,000 people die each day from diarrheal diseases resulting from unsafe water and lack of sanitation. Ninety percent are children under the age of five who live in developing countries. Disinfection of the drinking water helps to destroy disease-causing microorganisms. Widely used water disinfectants such as chlorine gas; sodium- or calcium-hypochlorite; chlorine dioxide or ozone are strong oxidizers. According to many publications, chlorinated water may have a strong influence on the physical properties and the lifetime of plastic pipes. In most of these papers, aqueous hypochlorite solutions are used, but less information is available on chlorine dioxide. In a comparative lab study, the influence of chlorinated water using aqueous hypochlorite and chlorine dioxide solutions for chlorination in different polyolefin pipe grades was investigated. Obtaining a better understanding of the ageing mechanism enabled the development of polyolefin pipe materials with improved chlorine resistance.

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

Related papers

2014 Chicago : Polyolefin Sewer Pipes – 100 Year Lifetime Expectancy

Author(s) : Tiem Meijering, Jeannette Mulder, Günter Dreiling, Heinz Vogt

In this study, it has been demonstrated that a 100 years service-lifetime for non-pressure sewage pipes, solid wall pipes and structured-wall pipes of PE and PP, can be expected provided some basic conditions are met. It has been demonstrated that the resistance to thermo-oxidative degradation of the applied...

2010 Vancouver : Influence of shock pressure testing on the service life of HDPE piping systems

Author(s) : Ulrich Schulte, Heinz Vogt, Hans-Friedrich Enderle, Dieter Lilge

The completion of a pressure test is mandatory for all new pipe systems. Its purpose is to demonstrate the overall leak-proof condition of the system. In the course of this test, HDPE pipes of SDR 17 class are exposed to high stress loads. In an extensive test programme, all failure mechanisms observed in long-term...

Thermal Ageing of PE 100 Pipes for Accelerated Lifetime Prediction under Service Conditions

Author(s) : Vogt, Enderle, Schulte, Hessel

30 Years of Pressure Testing on PE-Xa Pipes

Author(s) : Nitz, Vogt

Members of the Association

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