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This study investigates the thermal insulation of 3D-printed Polylactic Acid (PLA) samples fabricated using Fused Deposition Modeling (FDM) with varying infill patterns. The objective is to address how different infill patterns and surface finishes (smooth vs rough) influence the thermal properties of PLA, which are critical for applications in thermal insulation and energy-efficient construction. Thermal conductivity measurements were conducted using the Transient Plane Source (TPS) method, revealing that line infill patterns showed the highest thermal insulation, while smooth surfaces consistently showed lower thermal insulation than rough surfaces due to reduced air gap interference. The findings provide insights into optimizing thermal performance for PLA components in real-world applications.

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Evaluating Thermal Insulation of 3D-Printed Polymeric Materials with Varying Infill Patterns

  • 会议论文

  • 发表日期：

    2025年

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  • Akio Alnajjar,
  • Shaima Alhammadi,
  • Mariam Abusaima,
  • Sara Alkalbani,
  • Salma Saeed,
  • Rihab Hamza,
  • Waleed Ahmed

摘要

This study investigates the thermal insulation of 3D-printed Polylactic Acid (PLA) samples fabricated using Fused Deposition Modeling (FDM) with varying infill patterns. The objective is to address how different infill patterns and surface finishes (smooth vs rough) influence the thermal properties of PLA, which are critical for applications in thermal insulation and energy-efficient construction. Thermal conductivity measurements were conducted using the Transient Plane Source (TPS) method, revealing that line infill patterns showed the highest thermal insulation, while smooth surfaces consistently showed lower thermal insulation than rough surfaces due to reduced air gap interference. The findings provide insights into optimizing thermal performance for PLA components in real-world applications.