Recycling of APC-2 offcuts

Composites Manufacturing Pub Date : 1994-09-01 DOI:10.1016/0956-7143(94)90028-0

R.J. Day, A.K. Wood, S.F. Pang

{"title":"Recycling of APC-2 offcuts","authors":"R.J. Day, A.K. Wood, S.F. Pang","doi":"10.1016/0956-7143(94)90028-0","DOIUrl":null,"url":null,"abstract":"<div><p>A method for reclaiming waste APC-2 offcuts from pattern cutting of prepregs is reported. The method entails cutting the scrap prepreg into small flakes and compounding them with additional poly(ether ether ketone) (PEEK) resin in a twin-screw extruder to produce a short fibre-reinforced injection moulding grade material. The tensile and flexural properties of mouldings made from the reclaimed material were measured and compared with those of mouldings made from a commercially available injection moulding grade short carbon fibre/PEEK. The molecular weight, degree of crystallinity and fibre length distribution of the various samples of PEEK and carbon fibre/PEEK at different stages of processing are reported. Specimens made of the recycled material were stiffer and stronger in tensile loading than the ones made from the commercial moulding compound. This was due to the presence of fibres with a longer average length and better interfacial adhesion between the fibres and matrix in the recycled material. The PEEK matrix in the recycled material had a higher crystallinity than that in the commercial material. A simple economic assessment has been performed showing that, in principle, the recycling route is viable.</p></div>","PeriodicalId":100299,"journal":{"name":"Composites Manufacturing","volume":"5 3","pages":"Pages 187-193"},"PeriodicalIF":0.0000,"publicationDate":"1994-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0956-7143(94)90028-0","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composites Manufacturing","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0956714394900280","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 8

Abstract

A method for reclaiming waste APC-2 offcuts from pattern cutting of prepregs is reported. The method entails cutting the scrap prepreg into small flakes and compounding them with additional poly(ether ether ketone) (PEEK) resin in a twin-screw extruder to produce a short fibre-reinforced injection moulding grade material. The tensile and flexural properties of mouldings made from the reclaimed material were measured and compared with those of mouldings made from a commercially available injection moulding grade short carbon fibre/PEEK. The molecular weight, degree of crystallinity and fibre length distribution of the various samples of PEEK and carbon fibre/PEEK at different stages of processing are reported. Specimens made of the recycled material were stiffer and stronger in tensile loading than the ones made from the commercial moulding compound. This was due to the presence of fibres with a longer average length and better interfacial adhesion between the fibres and matrix in the recycled material. The PEEK matrix in the recycled material had a higher crystallinity than that in the commercial material. A simple economic assessment has been performed showing that, in principle, the recycling route is viable.

查看原文本刊更多论文

APC-2边角料的回收

报道了一种回收预浸料模切中APC-2废边角料的方法。该方法需要将废预浸料切割成小片，并在双螺杆挤出机中与额外的聚醚醚酮(PEEK)树脂复合，以生产短纤维增强注塑级材料。用再生材料制成的模具的拉伸和弯曲性能进行了测量，并与市售的注塑级短碳纤维/PEEK制成的模具进行了比较。本文报道了不同加工阶段PEEK和碳纤维/PEEK样品的分子量、结晶度和纤维长度分布。由回收材料制成的样品在拉伸载荷下比由商业模塑化合物制成的样品更硬、更强。这是由于再生材料中纤维的平均长度更长，纤维与基体之间的界面附着力更好。再生材料中PEEK基体的结晶度高于工业材料。一项简单的经济评估表明，原则上，回收路线是可行的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Composites Manufacturing

自引率

0.00%

发文量