NDLI: Development of PA6/GF Long-Fiber-Reinforced Thermoplastic Composites Using Pultrusion and Direct Extrusion Manufacturing Processes

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Development of PA6/GF Long-Fiber-Reinforced Thermoplastic Composites Using Pultrusion and Direct Extrusion Manufacturing Processes

Content Provider	MDPI
Author	Kim, Sung-Eun Ahn, Jun-Geol Ahn, Seungjae Park, Do-Hyung Choi, Da-Hee Lee, Jae-Chul Yang, Hyun-Ik Kim, Ki-Young
Copyright Year	2022
Description	The mechanical properties of polyamide 6 glass fiber (PA6/GF) long-fiber-reinforced thermoplastic (LFT) composites were characterized by studying the process conditions in terms of manufacturing methods (direct extrusion and pultrusion) and material characteristics (void content and fiber volume fraction). The LFT composites prepared through the pultrusion process have higher mechanical properties than those prepared via the direct extrusion process. The PA6/GF composite prepared via pultrusion had the tensile and flexural strengths of 233 MPa and 338 MPa, respectively. The impact strength measured using the Izod method was 296 J/m, which is 64% higher than that of the composite fabricated via the direct process. The optical microscope images showed that the glass fiber length of the pultruded composites is longer than the fiber length of the direct composites, leading to higher mechanical properties of the LFT composites prepared through the pultrusion process. Moreover, the interfacial shear strength between the resin and the fiber, measured via single fiber pullout tests, can account for the higher fiber reinforcing efficiency. If the void content of a composite is sufficiently small to not be detrimental to the composites, the mechanical properties are observed to be proportional to the fiber volume fraction of the composites.
Starting Page	4838
e-ISSN	20763417
DOI	10.3390/app12104838
Journal	Applied Sciences
Issue Number	10
Volume Number	12
Language	English
Publisher	MDPI
Publisher Date	2022-05-10
Access Restriction	Open
Subject Keyword	Applied Sciences Manufacturing Engineering Glass Fiber Polyamide 6 Fiber-reinforced Composite Thermoplastics Mechanical Properties
Content Type	Text
Resource Type	Article

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