Novel Sandwich Composite with Recycled Multilayer Carton Core and Aluminum Facings
- PDF / 287,498 Bytes
- 6 Pages / 432 x 648 pts Page_size
- 42 Downloads / 184 Views
Novel Sandwich Composite with Recycled Multilayer Carton Core and Aluminum Facings J.G. Carrillo, J.A. Moo-Tec, R.A. Gamboa Centro de Investigación Científica de Yucatán, A.C., Mérida, Yucatán, México. ABSTRACT In the present study a new sandwich laminate is designed and mechanically characterized. The laminate is elaborated with a core of particulate composite material consisting of recycled material from milk and juice cartons (multilayer laminate of Tetra Brik ®), and HDPE containers from Urban Solid Waste (USW). The elaborated material consists of aluminum facings with a particulate core, consolidated with a thermoplastic adhesive of polypropylene- maleic anhydride. The main properties under tension are evaluated under testing standards. Results show good compatibility in the union of elements, with potential applications in building facades and false walls for the construction and furnishing industries. INTRODUCTION A sandwich panel is a particular type of structural composite material, which in its simplest form, it consists of two external laminates (or facings), separated by a material typically with less stiffness and strength (core) of significant volume [1-4]. The parts are consolidated by means of an adhesive (thermoplastic or thermoset), generating an engineered composite material which is widely used in a variety of applications, i.e. for aerospace, aeronautics, automotive, naval, railway and construction industries. All of these applications are possible owing to the excellent expected properties of the resulting material which include; high stiffness, light weight, thermal and acoustic insulation and easy mechanization, among others [2, 5]. In this work the aim is to characterize a new sandwich laminate with a core of recycled material and to evaluate its main properties under tension, using aluminum alloy facings and a core of particulate composite material from recycled Tetra Brik® (TBr) containers. The sandwich is analyzed under tension, in order to identify relevant mechanical properties, in accordance with standardized testing. EXPERIMENTAL DETAILS Materials The materials used for the elaboration of the composite material proposed in this study are recycled Tetra Brik® containers (TBr) and recycled high density polyethylene (HDPEr), both of which are collected from Urban Solid Waste (USW). Both TBr and HDPEr are subjected to a grinding process in order to obtain the required particles to elaborate the core material. A 0.3 mm thick aluminum alloy 1100-H14 plate is used for the facings. Finally, a film of polypropylene modified with maleic anhydride, Collano 23.110/23.111 (MAHPP) is employed as adhesive, which effectively consolidates the sandwich-type panel. The panel configuration is shown in Figure 1.
7
Aluminum facing MAPP TBr/HDPEr core Figure 1. Schematic configuration of sandwich panel. Elaboration process The above described materials are employed for the sandwich panel with the following methodology; first, the core of recycled material is elaborated with TBr and an additional 45% vol.
Data Loading...
