The polyvinyl chloride pipe system is the earliest plastic pipe used, with a history of more than 70 years.

Overview

We should be aware that although China's polyvinyl chloride plastic pipes are large in scale, there is still a big gap between the quality level, technological innovation, application promotion, standards and specifications, and experimental research in all aspects and the international level. However, due to the lack of information exchange, many people in the industry have long mistakenly believed that the polyvinyl chloride pipe system is PVC-U, and the product is already at the international level. It seems that there is no room for innovation, development and improvement. The only thing that can be done is to expand the scale and reduce costs. Low-level duplicate construction has caused serious losses.

It is worth noting that the international community has been exploring ways to improve the performance level of polyvinyl chloride pipe systems and expand the application areas of polyvinyl chloride pipe systems through continuous research and testing, and has achieved remarkable results in the past decade. For example:

Improve the quality and reliability of polyvinyl chloride pipe systems. It has been proven that polyvinyl chloride pipes can be used safely for more than 50 years, and exploration guarantees 100 years.

Through modification to improve toughness, develop various modified polyvinyl chloride pipe systems (PVC-M) with good impact resistance and crack resistance while maintaining high strength. Through biaxial stretching during pipe processing, the molecules are oriented to greatly improve strength and toughness (PVC-O).

Expand the application field, such as: improve standards and develop polyvinyl chloride pressure pipes with a diameter of more than 1000mm;

Through modification, PVC pipes can be bent, folded, and even butt welded. Develop pipelines for non-excavation; improve toughness and apply them to harsh environments, such as water and compressed air pipelines in deep mines.

Actively eliminate lead stabilizers and carry out recycling, and actively meet the requirements of "sustainable development".

In comparison, our gap is very obvious. We have not mastered many new technologies and have not entered many application fields. The gap is the direction of progress, and the blank is the development opportunity.

Summarizing the experience of the rapid development of China's plastic pipe industry, attaching importance to learning, introducing and drawing on the advanced technology and experience and lessons of the international plastic pipe industry has played a decisive role. Practice has proved that in the 21st century of economic globalization and informatization, only enterprises and institutions that can grasp the latest development trends of the international plastic pipe industry in a timely manner, fully absorb and utilize international advanced scientific and technological achievements, and try to avoid low-level repeated experimental research can survive in the fierce competition.

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Compilation of Technical Data on Polyvinyl Chloride Pipe Systems 2010

Beijing Plastics Industry Association and China Pipeline Business Network have cooperated for a long time, and have been organizing the search, collection, translation, introduction and dissemination of the latest development information, scientific and technological achievements and market experience of the international plastic pipe industry with the participation and help of many leading enterprises and institutions. Special attention is paid to international conference materials that reflect the highest international level. The materials in this compilation are mainly selected from the reports of the 11th to 14th International Plastic Pipe Conferences from 1998 to 2008, including: development and application, formulation and performance, PVC-M and PVC-O, manufacturing and connection, non-excavation PVC pipes and stabilizers 43 articles.

It should be noted that because the content of the report involves many latest technologies, although great efforts have been made in translation and proofreading, there are definitely inaccuracies or even inaccuracies. I hope readers will understand and welcome criticism and correction.

We would like to express special thanks to all the translators, proofreaders, editors and organizers who have worked hard on this data compilation, and thank all enterprises and institutions for providing help in supporting the publication of this data compilation.

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