Jiang Quan, Takayama Tetsuo, Nishioka Akihiro
Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Japan.
Polymers (Basel). 2023 Nov 1;15(21):4297. doi: 10.3390/polym15214297.
Glass short fiber-reinforced thermoplastics (SGFRTP) are used to reduce carbon dioxide emissions from transportation equipment, especially household vehicles. The mechanical properties required for SGFRTP include flexural strength, impact resistance, etc. In particular, impact resistance is an important indicator of the use of SGFRTP. For this study, a mechanical model was developed to explain the notched impact strength of SGFRTP injection molded products in terms of their interfacial shear strength. The values obtained from the model show good agreement with the experimentally obtained results (R > 0.95). Results also suggest that the model applies to different fiber orientation angle and a range of fiber lengths in the molded product that are sufficiently shorter than the critical fiber length.
玻璃短纤维增强热塑性塑料（SGFRTP）用于减少运输设备，特别是家用车辆的二氧化碳排放。SGFRTP所需的机械性能包括弯曲强度、抗冲击性等。特别是，抗冲击性是SGFRTP使用的一个重要指标。在本研究中，开发了一个力学模型，以根据其界面剪切强度来解释SGFRTP注塑产品的缺口冲击强度。从该模型获得的值与实验结果显示出良好的一致性（R>0.95）。结果还表明，该模型适用于不同的纤维取向角以及模塑产品中一系列比临界纤维长度足够短的纤维长度。
