2018 Las-Vegas : Preparation and studying of thermoplastic cross-linked polyethylene
Author(s) : Cheng Zhi, Mingyuan Hu, Kaige Duan, Chaoxi Zhou, Dongming Yu
The PE properties are obviously improved by crosslinking modified to TPEX, which can approach to that of PEX, while still remaining thermoplastic. It can be processed by the common forming method of thermoplastic; the products can be hot-melted and the scrap can be processed to be reused. The two-layer structure...
2018 Las-Vegas : Preparation and studying of two-layer oxygen barrier plastic pipe
Author(s) : Mingyuan Hu, Dongming Yu, Zhangcheng Chen, Cheng Zhi, Kaige Duan
Studying in barrier property of TLCP/PO alloy and EVOH/PO alloy. Filtrating formulas with extruding alloy into pipes. Trying to coat alloy on pipes and co-extrude into two-layer oxygen barrier plastic pipe.
The traditional Ethylene vinyl alcohol copolymer (EVOH) barrier plastic pipe used in internal closed-loop...
2016 Berlin : A novel cyclone single stack system for building drainage
Author(s) : Chen Jianchun, Liu Luliang
3S (Strengthen Single System) cyclone single stack system is a new product for building drainage, which has the advantages of saving materials, large drainage quantity, low drainage noise, etc. In this system, the guide structure, swirl angle, volume structureand the height of spiral reinforcement are optimized...
2016 Berlin : Underground engineering stress analysis of plastic inspection chambers
Author(s) : Zhang Wei, Wei Ruoqi, Zhou Minghong, Zhou Mingwei,
This article gives a brief introduction of plastic inspection chambers underground test, analyzes the stress borne by plastic inspection chambers from different angles combined with pressure sensors and strain gauges, sorts out some of the underground test data and analyzes the test data, and finally sums up the...
2014 Chicago : Essential Variables of Heat Fusion Joining of Polyethylene Pipe
Author(s) : Dr. Z. Jimmy Zhou, Jim Johnston
Heat fusion joining method has been widely used for thermoplastic piping materials such as polyethylene to form the “one-material” pipeline system. No additional 3rd party materials such as an adhesive are needed. The fusion procedures to ensure the quality of the joints could be different for different materials and...
2014 Chicago : Liquid Crystal Polymer in the Manufacture of Plastic Pipes
Author(s) : Dongming yu, Linan Chen
This article is the impact study on general plastic pipe performance when using Liquid Crystal Polymer (hereinafter LCP) and LCP alloy, the soaking extrusion in-situ composite technique and the coat-molding technique for plastic pipe extrusion. It turns out that the high barrier property of TLCP can help us...
2014 Chicago : Meeting the Need for Stiffer Large Diameter Plastics Pipes in China
Author(s) : Wang Liqun, Wu Gengtian, Qi Jun
In China demand is growing rapidly for large diameter plastic pipes due to urbanization and the need to protect the environment with improved storm-water management systems. Whilst plastic pipes are already used in China for underground sewage and drainage applications the properties and processing limitations of the...
2014 Chicago : Study on Structural Integrity of Plastic Inspection Chambers
Author(s) : Zhang Wei, Wei Ruoqi, Zhou Minghong, Zhou Mingwei, Lin Baoshu, Xiao Lingli
The plastic inspection chamber is one of the rapidly developing products in the field of drainage in China for the past few years. At present, plastic inspection chamber is mainly made of PP, PE, PVC and so on. The manufacturing technologies include injection molding, rotational molding, mechanical assembly and...
2012 Barcelona : High Temperatures on PE Pipes for Water Supply Pressure Verification
Author(s) : Chen Zenggui
For PE pipes for water supply installed in the summer, the pipeline’s temperature under the sun exposure can influence the properties of the pipe. If you carry out the pressure tests directly, it can result in damage to the pipeline. So we conducted a detailed analysis and research on the influence of exposure to the...
2012 Barcelona : Ligament Stress Regression of Notched PE100/PE4710 Pipe
Author(s) : Z. Jimmy Zhou
(Keywords : Polyethylene pipe, ligament stress, regression, notch depth, lifetime.)
Hydrostatic test was conducted on notched PE100/PE4710 black pipe specimens at
various temperatures and stresses. Hoop stresses were normalized to ligament
stresses by taking into consideration of the effect of wall thickness reduction...
2012 Barcelona : The application of plastic inspection chamber for drainage in China
Author(s) : Zhou Minhong
As the key component of underground piping network for drainage, plastic inspection
chambers have many major advantages and are also being applied more and more
widely instead of traditional brick-built ones. Users become familiar with this new
technique gradually. However there are two major problems which have...