废弃块状模塑料（ BMC ）在等规聚丙烯复合材料中的应用。

Application of waste bulk moulded composite (BMC) as a filler for isotactic polypropylene composites.

机构信息

Polymer Processing Division, Institute of Materials Technology, Poznań University of Technology, Piotrowo 3, 61-138 Poznań, Poland.

Faculty of Chemical Technology and Engineering, University of Science and Technology in Bydgoszcz, Seminaryjna 3, 85-326 Bydgoszcz, Poland.

出版信息

J Adv Res. 2016 May;7(3):373-80. doi: 10.1016/j.jare.2016.01.001. Epub 2016 Feb 16.

DOI:10.1016/j.jare.2016.01.001

PMID:27222742

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4856829/

Abstract

The aim of this study was to produce isotactic polypropylene based composites filled with waste thermosetting bulk moulded composite (BMC). The influence of BMC waste addition (5, 10, 20 wt%) on composites structure and properties was investigated. Moreover, additional studies of chemical treatment of the filler were prepared. Modification of BMC waste by calcium stearate (CaSt) powder allows to assess the possibility of the production of composites with better dispersion of the filler and more uniform properties. The mechanical, processing, and thermal properties, as well as structural investigations were examined by means of static tensile test, Dynstat impact strength test, differential scanning calorimetry (DSC), wide angle X-ray scattering (WAXS), melt flow index (MFI) and scanning electron microscopy (SEM). Developed composites with different amounts of non-reactive filler exhibited satisfactory thermal and mechanical properties. Moreover, application of the low cost modifier (CaSt) allows to obtain composites with better dispersion of the filler and improved processability.

摘要

本研究的目的是制备填充废热固性整体模塑料（BMC）的等规聚丙烯基复合材料。研究了 BMC 废料添加（5、10、20wt%）对复合材料结构和性能的影响。此外，还对填料的化学处理进行了进一步研究。硬脂酸钙（CaSt）粉末对 BMC 废料进行改性，可以评估生产具有更好的填料分散性和更均匀性能的复合材料的可能性。通过静态拉伸试验、Dynstat 冲击强度试验、差示扫描量热法（DSC）、广角 X 射线散射（WAXS）、熔体流动指数（MFI）和扫描电子显微镜（SEM）对复合材料的机械、加工和热性能以及结构进行了研究。用不同量的非反应性填料制备的复合材料表现出令人满意的热性能和力学性能。此外，使用低成本的改性剂（CaSt）可以获得具有更好的填料分散性和改善加工性能的复合材料。