The Effect of Several Service and Weathering Parameters on Tensile Properties of PVC Pipe Materials

Abstract

For water and sewer pipes, PVC is considered to be one of the best row materials. Due to its physical, chemical and industrial significant properties, PVC is commercially invited to be in the first position. Many other traditional raw materials; e.g. iron, concrete, polyethylene and vitrified clay (VC), are coming in second position. This work is conducted to study the tensile properties of two different types of PVC raw materials (named as gray and white) for water pipe manufacturing by implementing different test conditions. The samples were prepared by cutting off the pipe to an individual cross sectional size rings. Afterward, they were softened smoothly by heating the ring samples to obtain flat standard tensile test specimen. The influence of strain rate (crosshead speed), temperature and UV radiation on the tensile properties of PVC pipe’s row material were investigated. The selected experimental test temperatures are (28℃, 50℃ and 70℃), the selected crosshead speeds are (5, 50 and 100 mm/min) and the UV treatment exposure times are (168, 408, 744 and 1080) hours. The result shows that the gray PVC pipes have tensile strength greater than white PVC pipes. The yield stress and modulus of elasticity are directly proportion to strain rate and inversely proportion to the treatment temperature of both PVC samples. However, the fracture strain was increased with temperature and decreased with strain rate. UV treatment didn’t show a significant effect on the yield stress and modulus of elasticity. This is an indication of PVC long time stability

UV-Absorbing Cellulose Nanocrystals as Functional Reinforcing Fillers in Poly(vinyl chloride) Films

“…5–6%) and E Y (ca. 2–3%), which is associated with the UV-induced cross-linking among the PVC chains . The cross-linking of PCEM- g -CNC may be verified by FTIR.…”

“…2− 3%), which is associated with the UV-induced cross-linking among the PVC chains. 52 The cross-linking of PCEM-g-CNC may be verified by FTIR. However, the vibrations of uncrosslinked PCEM and cross-linked PCEM overlapped; therefore, it is difficult to precisely quantify the cross-linking degree by FTIR and DMA.…”

Structural Stability and Mechanical Analysis of PVC Pipe Jacking under Axial Force

“…(1) Element and material: The PVC pipe was simulated by a three-dimensional shell element and the elastic-plastic constitutive model was adopted for PVC pipe. According to the experimental research and numerical simulation of previous scholars [12,28,29], the elastic modulus can be taken as 3000 MPa and the compressive yield strength and tensile yield strength are 86.71 MPa and 51.58 MPa, respectively. The finite element model of the PVC pipe is shown in Figure 3, and the pipe parameters are listed in Table 1.…”

Development and Testing of Waste poly(Vinyl Chloride) Based Solvent Cement for Bonding of poly(Vinyl Chloride) Pipes and Fitting

“…Due to its considerable physical, chemical, and industrial significant qualities, PVC is commercially invited to be in the top position than other conventional raw materials e.g., iron, concrete, polyethylene, and vitrified clay (VC) (Saad et al, 2012). Since early 20 th century, PVC was frequently utilized for outdoor applications, including in around 39% of piping systems for various purposes (Saad et al, 2012). In this work, waste PVC was characterized by attenuated total eflection-Fourier transform infrared (ATR-FTIR) and physical analyses.…”