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The Effect of Textile Structure Reinforcement on Polymer Composite Material Mechanical Behavior
Svetlana Risteska1, Vineta Srebrenkoska1, Silvana Zhezhova1
1Faculty of Technology, Goce Delcev University, Krste Misirkov 10-A, P.O. Box 201, 2000 Shtip, North Macedonia.
Polymers
|January 8, 2025
Summary
This study examined how different E-glass fiber textile structures impact polymer composite mechanical properties. Unidirectional reinforcements yielded the highest flexural strength, while nonwoven structures showed the lowest.
Area of Science:
- Materials Science
- Polymer Science
- Composite Materials
Background:
- Polymer composites utilize reinforcing elements to enhance mechanical performance.
- Textile structures offer diverse reinforcement architectures for composite design.
Purpose of the Study:
- To investigate the influence of various E-glass fiber textile structures (woven, nonwoven, unidirectional) on the mechanical properties of epoxy-based polymer composites.
- To evaluate the flexural properties of compression-molded polymer-textile composites.
Main Methods:
- Compression molding of pre-impregnated textile materials (prepregs).
- Verification of impregnation and interfacial adhesion using Differential Scanning Calorimetry (DSC) and Scanning Electron Microscopy (SEM).
- Determination of flexural properties to assess mechanical behavior.
Main Results:
- Unidirectional (UD) E-glass fiber reinforced composites exhibited the highest longitudinal flexural strength (~900 MPa).
- Woven E-glass fiber reinforced composites demonstrated balanced flexural properties, with twill showing higher strength than plain and basket weaves.
- Nonwoven (mat) E-glass fiber reinforced composites displayed the lowest flexural strength (~150 MPa) in both directions.
Conclusions:
- The textile reinforcement architecture significantly dictates the flexural performance of epoxy-based polymer composites.
- UD reinforcements are optimal for high longitudinal strength applications, while woven structures offer balanced properties.
- Nonwoven structures provide lower mechanical resistance compared to woven and unidirectional reinforcements.
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