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The Test Method of Carbon Black Particle Diameter for PE pipes applying for gas

 

Li Yu-e, Wu Zhijun, Hua Ye, Sun Jiawen

Posters # 2010 Vancouver

As the polyethylene pipes widely used in the gas fields, their long-term life is demanded more and more strict. The technical requirement about carbon black particle size was defined in the revised ISO 4437 :2007 as one of requirements of material. We can see that carbon black particle size of the compound is an important factor for controlling the quality of pipe. To accurately measuring carbon black particle size in compound, carbon black particles will be separated from the compound by high temperature pyrolysis, then carbon black particles size will be measured after dispersing reunited carbon particles. Whether in high temperature pyrolysis or in the dispersion process, many factors on the accuracy of the measurement of particle size have great influence.

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