Effect of tensile and compressive properties on the scratch behavior of injection-molded polycarbonate model systems

IF 4.5 2区化学 Q2 POLYMER SCIENCE Polymer Pub Date : 2025-02-21 Epub Date: 2025-01-30 DOI:10.1016/j.polymer.2025.128107

Glendimar Molero , Sumit Khatri , Jarian Galloway , Shuoran Du , Hung-Jue Sue , Peter Vollenberg , Yuntao Li

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Abstract

The scratch behavior of injection-molded model polycarbonate (PC) systems was investigated according to the ASTM scratch test methodology. Four model PC systems with different tensile and compressive yield stresses were investigated to determine what are the governing parameters determining the scratch visibility and scratch cracking resistance. Coefficient of friction (COF) measurements, uniaxial tensile and compressive true stress-strain curves, and dynamic mechanical analyses were conducted to correlate the intrinsic material properties to the observed scratch-induced deformation of the model PC systems. Special attention is given to how the geometric scratch parameters, such as scratch depth and shoulder height, correlate with the mechanical properties and the scratch visibility of the model PC systems. It is found that the tensile yield and compressive yield stresses and surface characteristics and the COF dominate the scratch deformation process, thus the scratch performance of PC.

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拉伸和压缩性能对注塑成型聚碳酸酯模型体系划伤行为的影响

根据ASTM划伤试验方法，对注塑成型聚碳酸酯（PC）模型的划伤行为进行了研究。研究了具有不同屈服应力和屈服应力的四种型号PC体系，以确定决定划伤可视性和抗划伤开裂性的控制参数。通过摩擦系数（COF）测量、单轴拉伸和压缩真应力-应变曲线以及动态力学分析，将材料的固有特性与观察到的模型PC系统的划痕引起的变形联系起来。特别注意几何划痕参数，如划痕深度和肩高，如何与模型PC系统的力学性能和划痕可见性相关。结果表明，拉伸屈服应力和压缩屈服应力、表面特性以及COF主导了PC的划伤变形过程，从而影响了PC的划伤性能。

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来源期刊

Polymer 化学-高分子科学

CiteScore

7.90

自引率

8.70%

发文量

959

审稿时长

32 days

期刊介绍： Polymer is an interdisciplinary journal dedicated to publishing innovative and significant advances in Polymer Physics, Chemistry and Technology. We welcome submissions on polymer hybrids, nanocomposites, characterisation and self-assembly. Polymer also publishes work on the technological application of polymers in energy and optoelectronics. The main scope is covered but not limited to the following core areas: Polymer Materials Nanocomposites and hybrid nanomaterials Polymer blends, films, fibres, networks and porous materials Physical Characterization Characterisation, modelling and simulation* of molecular and materials properties in bulk, solution, and thin films Polymer Engineering Advanced multiscale processing methods Polymer Synthesis, Modification and Self-assembly Including designer polymer architectures, mechanisms and kinetics, and supramolecular polymerization Technological Applications Polymers for energy generation and storage Polymer membranes for separation technology Polymers for opto- and microelectronics.