Change of some characteristics of HDPE pipes tested in Nghe An province seawater

Abstract

This paper focuses to study on change of some characteristics of high density polyethylene (HDPE) pipes testing in Nghe An province seawater. The investigated characteristics of HDPE pipe before and after testing are structural, morphological, crystal, thermal property and stability. Infrared (IR) spectroscopy, scanning electron microscope (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA) and differential thermal analysis (DTA) methods were used to evaluate the change in characteristics of PE pipes after 10 testing months in Nghe An province seawater. In addition, the change in weight and tensile properties of PE pipes after testing was also investigated. The obtained results showed that the Nghe An province seawater had an influence on the structural, morphological, tensile, crystal and thermal characteristics of PE pipes.

Study on the Properties of Cellulose Acetate Composite Synergistically Toughened by Glycerol Triacetate and Modified Nano Titania

“…The agglomeration of nano TiO 2 can be effectively reduced by surface modification of the coupling agent [7] . In addition, coupling agent-modified nano titanium dioxide can increase the force between inorganic filler and polymer, improving materials' comprehensive properties [8][9][10][11] . The operation of surface modification is convenient and effectively improves the agglomeration of nanofillers, increases the force between fillers and matrix, significantly improves the comprehensive performance of materials, and provides a practical idea for the modification of cellulose acetate.…”