Process Influences in the Combined Compacting and Back-Injection Process to Produce Back-Injected Self-Reinforced Composites (SRCs) – Analysis via Multiple Regression Modelling
Author:
Jakob F.1, Pollmeier J.1, Heim H.-P.1
Affiliation:
1. IfW Plastics Technology, University of Kassel , Kassel , Germany
Abstract
Abstract
A new process to produce back-injected self-reinforced composites (SRCs) is presented. In contrast to other investigations on back-injection of SRCs, a process is presented which allows compacting and back injection of SRCs in one step where the SRCs are partly consolidated only via melt pressure inside the cavity. The mechanical properties of SRCs depend to a large extent on the process parameters of temperature and pressure during manufacture. These parameters are not yet known for back-injected areas. Sensors inside of the cavity measure the influences on the temperature and pressure conditions in the cavity. Initial studies on adhesion were carried out and analysed. For this purpose, shear tests of the back-injected component were carried out and a maximum shear strength of 5.81 MPa was determined for the materials used here. The investigations also show a dependence on the Distance from the Gate (DG) and the Mass temperature (TM). First microscopic examinations show good bonding between the SRC and the injection molded part, with no voids or air pockets in the boundary layer. It can also be seen that successful consolidation takes place in the area of the back injection.
Publisher
Walter de Gruyter GmbH
Subject
Materials Chemistry,Industrial and Manufacturing Engineering,Polymers and Plastics,General Chemical Engineering
Reference23 articles.
1. Abraham, T., Banik, K. and Karger-Kocsis, J., “All-PP Composites (PUREΠ) with Unidirectional and Cross-Ply Lay-Ups: Dynamic Mechanical Thermal Analysis", eXPRESS Polym. Lett., 1, 519–526 (2007), DOI:10.3144/expresspolymlett.2007.74 2. Alcock, B., “Single Polymer Composites Based on Polypropylene: Processing and Properties", PhD Thesis, Queen Mary University, London (2004) 3. Alcock, B., Cabrera, N., Barkoula, N.-M. and Peijs, T., “The Effect of Processing Conditions on the Mechanical Properties and Thermal Stability of Highly Oriented PP Tapes", Eur. Polym. J., 45, 2878–2894 (2009), DOI:10.1016/j.eurpolymj.2009.06.025 4. Biermann, D., Gausemeier, J., Heim, H.-P., Hess, S., Peters, G., Ries, A. and Wagner, T., “Planning and Optimisation of Manufacturing Process Chains for Functionally Graded Components – Part 2: Case Study on Self-Reinforced Thermoplastic Composites", Prod. Eng. Res. Devel., 9, 405–416 (2015), DOI:10.1007/s11740-015-0610-2 5. Biermann, D., Maier, H. J. and Steinhoff, K., Functionally Graded Materials in Industrial Mass Production, [SFB/TR TRR 30], Verl. Wiss. Scripten, Auerbach (2009)
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
|
|