Plastic packaging materials of laminated composites made of polymer cover sheets and a nonwoven interlayer

Author:

Lin Mei-Chen1,Lin Jia-Horng23456ORCID,Lin Jan-Yi1,Lin Ting An1,Lou Ching-Wen35678ORCID

Affiliation:

1. Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials, Feng Chia University, Taichung City, Taiwan

2. Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textiles, Tianjin Polytechnic University, Tianjin, China

3. Department of Chemical Engineering and Materials, Ocean College, Minjiang University, Fujian, China

4. Department of Fiber and Composite Materials, Feng Chia University, Taichung City, Taiwan

5. College of Textile and Clothing, Qingdao University, Shangdong, China

6. China Medical University, Taichung City, Taiwan

7. School of Textiles, Tianjin Polytechnic University, Tianjin, China

8. Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan

Abstract

This study aims to improve the mechanical properties, stabilized structures, and light weight plastic packaging materials to realize diverse applications. A sheet extrusion machine is used to fabricate sandwich-structured composites, which are composed of two polymer cover sheets and a nonwoven interlayer. The samples are prepared in two batches with different cover sheets: thermoplastic polyurethane and polypropylene. Moreover, low-melting-point polyester (LMPET) fibers and Kevlar fibers are fabricated into a LMPET/Kevlar nonwoven interlayer. The laminated composites are evaluated in terms of morphologies, mechanical properties, combustion rates, and thermal behavior. Kevlar fibers are flame resistant and mechanically strong. LMPET fibers promote the interfacial bonding between layers. Thus, the laminated composites are good candidates as packaging materials, and they can be made with rigid or soft materials, depending on specified requirements. Rigid materials can provide higher strengths, and the distribution of fibers thus helps the PP-based laminated composites to obtain higher crystal stability. Moreover, using TPU with flexibility contributes to high extensibility, which grants the laminated composites with high toughness, light weight, and low restriction against the morphology. Such manufacturing is also efficient and economical, thereby satisfying the requirements of plastic packaging materials.

Funder

Ministry of Science and Technology, Taiwan

Publisher

SAGE Publications

Subject

Mechanical Engineering,Mechanics of Materials,Ceramics and Composites

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