Tensile strength-temperature relationship model of the thermoplastic polyolefin(TPO)homogeneous waterproofing membrane
SONG Yingnan
BIAN Xuejun
GE Bing
WANG Jingxian
FU Wenjun
CAO Yingying
Abstract：A tensile test of thermoplastic polyolefin(TPO)homogeneous waterproofing membrane at different temperatures was carried out to analyze its tensile deformation behavior.With temperature as the variable and breaking strength,yield stress,and e-lastic modulus as the investigation parameters,combined with the tensile deformation characteristics of the TPO homogeneous wa-terproofing membrane,the fracture stress-temperature relationship was analyzed.Then,the regression relationship models of breaking stress-temperature and fracture strain-temperature of the TPO homogeneous waterproofing membrane was obtained.The results in-dicate that the proposed regression relationship models of fracture stress-temperature and fracture strain-temperature are in good agreement with the experimental results and have excellent reliability.Through calculations based on these regression rela-tionship models,quantitative comparison of TPO homogeneous waterproofing membrane at different temperatures and regression cal-culation of strength at room temperature can be achieved,providing technical support for solving the problem of temperature insta-bility during the tensile performance test of TPO homogeneous waterproofing membrane at the engineering site.
Keywords：waterproof membraneTPOtemperaturetensile property
Publication Date：2025-12-25
Online Publishing Date：2026-01-13(First online date of this platform, not the publication date of the document)
Pages：5( 123-127 )