Evaluation of Impact Absorbing Properties of Thermoplastic Elastomers

International Rubber Conference

Yajima, N.^1 ; Kawahara, S.^2 ; Matsuda, A.^3

Systems and Information Engineering, University of Tsukuba, Ibaraki, Japan^1

Kuraray Plastics Co.Ltd., Gifu, Japan^2

Faculty of Engineering of Information and Systems, University of Tsukuba, Ibaraki, Japan^3

关键词: Drop-weight impact testing;    Dynamic mechanical property;    Non-linear viscoelasticity;    Physical mixtures;    Static and dynamic mechanical properties;    Static and dynamic tests;    Static mechanical properties;    Uniaxial tensile loading;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/548/1/012008/pdf
DOI  :  10.1088/1757-899X/548/1/012008

来源: IOP

【 摘 要 】

The thermoplastic elastomers (TPEs) are physical mixtures of polymers. Impact absorbing materials in sports equipment are one of the expected applications of TPEs due to good process ability and less-smell. For examples, face guards, head-gears and protectors are expected to be applied. In this paper, static and dynamic mechanical properties of TPEs were investigated to expand the applicability of TPEs to the impact absorbing material for the sports equipment. In this study, TPEs developed by the Kuraray Plastics Co., Ltd. were applied for static and dynamic tests. To investigate the static mechanical properties of TPEs, the uniaxial tensile loading tests were conducted. The nonlinear viscoelasticity considering damage were applied to representation of the experimental results. The FEM analysis showed good applicability to static mechanical properties including damage which was excited by the maximum deformation. TPE. To investigate the dynamic mechanical properties of TPEs, a drop weight impact testing machine was developed. Impact absorbing properties of TPEs were evaluated by the impact force and impact time with baseball weight.