PPCA papers

In this section, you will find a database of all articles presented and published by PPCA in biannual conferences organized by PPCA since 1970.
You have access to a generic search, or to an advanced search, by preset keywords.


Bimodal polyethylene for pipe applications obtained by chromium oxide/metallocene binary catalysts

Author(s) : Moreno Jovita 2012 Barcelona

Two stage cascade polymerization process is the most employed technology for production of bimodal polyethylene using only one optimized catalyst. However, such schemes are inherently more complex and therefore, there are many advantages of using single reactor bimodal technology: lower investment costs, easier and...

BUTT FUSION COOLING TIMES, SPEEDING UP THE PROCESS – EFFECT OF AMBIENT TEMPERATURES

Author(s) : Striplin Ted 2012 Barcelona

This author presented the thought provoking paper “Butt Fusion Cooling Times, Speeding Up the Process” at Plastic Pipes XV held in Vancouver, British Columbia, Canada.. That presentation discussed testing of heavy walled pipe using various fusion standards and the resulting cooling times with relative joint...

Butt Fusion Welding of Large Diameter Spiral Wound PPHM Pipes

Author(s) : Cristian Hedesiu, Roger Jepson, Mohamed Hageb, Mohana Murali 2012 Barcelona

It was found that welding high modulus polypropylene (PP-HM) material in accordance with the parameters of DVS 2207-11 did not produce welds which met the requirements of the Guide. The optimum welding conditions for butt fusion welding of large diameter pipes e.g. 2000 mm and 3000mm, made from PP-HM were investigated...

CASE STUDY: TECHNICAL REVIEW OF LARGE SCALE COMMERCIAL INSTALLATIONS USING POLYAMIDE 11 BASED HIGH PRESSURE NATURAL GAS PIPING SYSTEM AND DURABILITY TESTING

Author(s) : Pratik SHAH 2012 Barcelona

Since late 2008, through amendment to US DOT CFR Title-49, Part-192, plastic piping system made from Polyamide 11 (PA-11) is permitted by the USA Department of Transportation for use in natural gas distribution systems. While research, development, and application testing of PA-11 pipe and resin, as presented...

Challenging installation of large diameter HDPE pipe by directional drilling provides a comprehensive water management solution and an improved environmental outcome

Author(s) : Micic Predrag 2012 Barcelona

Large diameter polyethylene pipe played an important role in ensuring water supply security to the Shortland region near Newcastle in NSW Australia. After 85 years of operation, the pipe owner, Hunter Water, decided to replace 7.4 km of above ground 900mm metal pipe that had been prone to flood damage and regularly...

COMPARISON OF ACCELERATED TESTS FOR PE GRADES LIFETIME ASSESSMENT

Author(s) : Andreas Frank, Gerald Pinter, Mridula Kapur, E. Nezbedová 2012 Barcelona

Results from cracked round bar tests (CRB) and pennsylvania notch tests (PENT) for several polyethylene (PE) pipe grades are compared. The CRB tests were conducted at 23 °C and 80 °C, the PENT tests only at 80 °C. A material ranking based on the CRB tests was in good accordance to PENT failure times, although a...

COMPARISON OF ACCELERATED TESTS FOR PE GRADES LIFETIME ASSESSMENT

Author(s) : Andreas Frank, Gerald Pinter, Mridula Kapur, E. Nezbedová 2012 Barcelona

Results from cracked round bar tests (CRB) and pennsylvania notch tests (PENT) for several polyethylene (PE) pipe grades are compared. The CRB tests were conducted at 23 °C and 80 °C, the PENT tests only at 80 °C. A material ranking based on the CRB tests was in good accordance to PENT failure times, although a...

Comparison of ASTM and ISO Requirements for PE-RT in Potable Water Applications

Author(s) : Carl F. Baker, P.E. 2012 Barcelona

The performance requirements for flexible polyolefin potable water piping systems in North America are quite different than those in other areas of the world. PolyEthylene – Raised Temperature (PE-RT) products were developed in Western Europe in the early 1980’s and since that time have evolved into the high...

Comparison of long-term-properties of polyolefin pipe grades using linear elastic fracture mechanics

Author(s) : Florian Arbeiter, Gerald Pinter, Andreas Frank 2012 Barcelona

Failure of polymer pipes due to slow crack growth (SCG) is a well-known problem throughout the industry. During the last decades various authors provided vital information for characterizing this type of failure in polyethylene (PE) pipes. For industrial pipe applications however polypropylene (PP) is also a widely...

Contribution of the Plastic Pipe Industry to the PVC Voluntary Commitment

Author(s) : Telgen Hans 2012 Barcelona

Abstract: In 2000 the PVC chain embarked in a ten year program to improve the environmental footprint of the PVC industry: Vinyl 2010. Challenging targets have been fixed and all of them have been achieved: recycling, substitution of heavy metals, energy saving etc. The pipe industry and specially the members of...



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