Many developments and breakthroughs in the world of plastic pipes will be reviewed at PPXXI. Organizers of this event have posted the draft program with the complete collection of abstracts of papers to be delivered at this Conference and Exhibition hosted in Lake Buena Vista, Florida, during September 25 – 27 2023.
The following synopsis offers only a short overview of the news content to be delivered during PPXXI.
Recycled pipes from waste packaging
The EU demands high standards for the re-use of waste plastic packaging whereas European converters supply high quality standards of pipe systems. Paul Freudenthaler, a scientist from the Austrian Johannes Kepler University of Linz has matched supply with demand.
His work on compounding virgin high-performance pipe grades with recyclates confirms sufficient long-term performance for the use in less demanding applications such as drainage pipes or fittings.
New resin for power and telecom
Olivera Bilic (Chevron Phillips Chemical Company LP) will announce that pipe production trials using a new high performance bimodal polyethylene resin were successful.
This resin developed for power and telecommunication applications is all the more important given that the global demand for such power conduit pipes is expected to surge annually by 5% over the next ten years.
These production runs have shown excellent processability (lb./hr and feet/min.) needed to maximize conduit production rates with or without the incorporation of post-industrial recycled content.
Innovative screw technology
Rainer Viessman from the German Hans Weber Maschinenfabrik will announce a new screw geometry for counter rotating twin screw PVC extruders.
His screw threads are wave-shaped in the circumferential direction. This creates a faster introduction of mechanical energy into the plastic. This system is thus more effective and the homogeneity of the melt is improved and also the so-called ‘banana peel’ effect is minimized. Plastification is accelerated and an additional positive effect on homogenization is achieved.
Polyamide gas pipes put to the test
Carine Lacroix (GRTgaz) will report on a recent trial to evaluate the robustness of polyamide gas network installations with a focus on installation and fusibility in harsh conditions.
Future gas delivery systems may be required to transport new gases such as biomethane and hydrogen. Hence the interest in the use of Polyamide pipelines for natural gas transportation for pressures up to 16 bar. Recommendations regarding the fusion of such PA materials will be made.
In preparation for the seismic big one
Experience in Japan and from around the world demonstrates the seismic advantages of flexible plastic pipe systems. Professor Michael O’Rourke (ASCE Member) will provide guidelines for the required wall thickness for a fully fused HDPE water main that could be subject to an earthquake.
Included in the paper are the relationships for calculation of the required pipe wall thickness as well as a flow chart for ease of use.
Safe shores and electricity in Central Africa
An HDPE piping system will be used to extract methane and carbon dioxide trapped at the bottom of Lake Kivu in Central Africa. These gases produced by decomposing matter and volcanic activity pose a risk to lake village communities and livestock.
Richard Coombs (ISCO Industries) will describe how this project was designed to transport and separate these gases and to convert the methane into electricity by a local power generation facility.
PVC Pipes: lowest failure rate in North America
Research Associate Professor Steven Barfuss from the Utah State University will report on the largest water main break survey in North America.
800 utilities in the USA and Canada responded to his survey – representing 2.45 million miles of pipeline. Results continue to show that PVC water pipe has the lowest failure rate compared to traditional pipe materials commonly used in water systems.
Breakthrough in biaxially oriented pipes
A Dutch pilot plant has successfully produced biaxially oriented polyethylene and polypropylene pressure pipes in-line.
Ajay Taraiya (SABIC) will provide a detailed study of the orientation of 32- and 63-mm outer diameter pipes with the former having a wall thickness between 1.9 to 3 mm. All important pressure test results for pipes produced under these process conditions will be reported.
New resin designs for micro-irrigation sustainability
Rachel Anderson (DOW Inc) will introduce new resin designs for sustainability enhancements in polyethylene based micro-irrigation pipe systems.
Separate resins have been developed for thin walled MDPE tapes (4-25 mil) used in shorter life cycles for cultivation of high value crops for say, berries, and also thick walled LLDPE tubing (>25 mil) intended for more permanent installations such as orchards and vineyards.
The bimodal design results in irrigation tapes with higher production rates and environmental performance. The LLDPE resin was designed to make micro-irrigation tubing with 65% recycled content.
Closed loop recycling of PEX Pipes
Robin Bresser (Borealis) will show how four experienced companies have worked together to successfully recycle PE-X waste pipes back into high quality PE-X pipe systems.
PE-X pipe solutions have a successful 50 year track record in the heating and plumbing sector and the environmental benefits of this circulatory project will enhance their use.
Vast irrigation scheme in Egypt
The Egyptian government has initiated an irrigation pipe project to cultivate one million acres of land to boost food security. Thousands of meters of large diameter PE100 pipe systems will be supplied.
Ahmed Abd Allah Haroun (Al Amal Alsharif Co.) comments ¨Production of PE100 pressure pipes of this size and scale has never been attempted before in the African Continent.¨
Close study of multifrequency microwave technology
The use of spoolable reinforced thermoplastic pipe (RTP) technologies in the onshore oil and gas industry has expanded significantly over the past decade. Chantz Denowh (ADV Integrity Inc) anticipates that such an interest will continue to grow as oil and gas operators transition to transporting alternative fuels such as hydrogen and carbon dioxide.
One gap is the need for viable inspection technologies that pipeline operators can use for long-term integrity management. His study works to address this gap by progressing the multifrequency microwave technology and evaluating its accuracy against simulated defects that commonly occur to spoolable RTPs in the field.
Close review of tin stabilizers for PVC pipe systems
Tin mercaptide stabilizers have been used successfully in the US for the last fifty years as the dominant rigid stabilizing system for the manufacture of PVC and CPVC pipe systems. Robert Smith (PMC Organometallix) will closely examine how three primary systems ensure shear and static stability.
These stabilizer systems (2-EHMA, reverse-ester, and mixed mercaptan) will be assessed and include torque rheometer-based fusion (ASTM D-2538) and dynamic shear stability testing, 2-roll mill dynamic stability testing, static oven testing, and dehydrochlorination testing. Case studies will also be presented using the established criteria.
One small step for education…
White G. Jee (JEE Consulting Services) will underline the importance of education in the technical world of plastic pipes. ¨As engineering, polymer chemistry and material science courses are developed and taught by university professors, do you know if the topic of plastics piping systems is being covered as an introduction to the students?¨ Jee asks.
¨As one of the many Baby Boomers that is approaching retirement in this industry, it is of utmost importance that we communicate our experiences and mentor the next workforce generation to continue the vibrant growth of our industry that has blessed all of us in our careers and livelihood.¨
The complete content of PPXXI abstracts are posted via https://ppxxi.com/wp-content/uploads/2023/03/Abstracts_2023_v12.pdf
Furthermore, the draft program is available on: https://ppxxi.com/wp-content/uploads/2023/03/PPXXI-Draft-Timeline_v6_03.25_to-OC.pdf
Information, online registration, exhibition space and further sponsorship opportunities for PPXXI are available through: https://ppxxi.com
Note to Editors: PPCA conferences are self-financing and any profits from one event are reinvested in future conferences, educational tools or “spin-off” events.
Peter Balassa (Evacon) at firstname.lastname@example.org Tel.: + 36-30-513-0255