Recycled EPS and Epoxy Based Composite Materials: The Combination of Sustainability and Performance

Öz

Epoxy composites are high-strength and lightweight materials created by combining epoxy matrix with reinforcing materials. Such composites have a wide range of applications in aviation, automotive, energy, and many other industrial sectors. In this study, the effects of surface-coated expanded polystyrene (rEPS) bubbles added to epoxy matrix at different ratios (%1, %3, %7, %11, and %14) on material properties were investigated. Material properties such as density, hardness, surface gloss at a 60° angle, and Charpy impact strength were measured according to varying rEPS ratios. The results showed that rEPS bubbles reduced density, thereby reducing the weight of the material, affected surface gloss, and decreased impact strength. There was no significant difference in hardness values, but impact strength decreased with increasing rEPS content. The effects of homogeneous distribution of rEPS bubbles on material properties were examined, and it was emphasized that the use of rEPS should be optimized with appropriate production processes. This study has been an important step in understanding the performance of rEPS in epoxy composite materials and has provided a foundation for future research.

Anahtar Kelimeler

• Epoxy
• Polymer composites
• Expanded polystyrene
• Sustainability
• Recyled
• Performance

Geri Dönüştürülmüş EPS ve Epoksi Kullanılarak Üretilen Kompozit Malzemeler: Sürdürülebilirlik ve Performansın Birleşimi

Öz

Epoksi kompozitler, epoksi matris ve takviye edici malzemelerin bir araya getirilmesiyle oluşturulan yüksek mukavemetli ve hafif malzemelerdir. Bu tür kompozitler, havacılık, otomotiv, enerji ve birçok endüstriyel uygulamada geniş bir kullanım alanına sahiptir. Bu çalışmada, epoksi matrise farklı oranlarda (%1, %3, %7, %11 ve %14) eklenen yüzeyi PA ile kaplanmış genişletilmiş polistiren (rEPS) baloncukların malzeme özellikleri üzerindeki etkileri incelenmiştir. Yoğunluk, sertlik, yüzey parlaklığı ve Charpy darbe mukavemeti gibi malzeme özellikleri, farklı rEPS oranına göre ölçülmüştür. Sonuçlar, rEPS baloncuklarının yoğunluğu azaltarak malzemenin ağırlığını düşürdüğünü, yüzey parlaklığını etkilediğini ve darbe mukavemetini azalttığını göstermiştir. Sertlik değerlerinde belirgin bir farklılık bulunmamıştır. rEPS içeriği arttıkça darbe mukavemeti azalmıştır. rEPS baloncuklarının homojen dağılımının malzeme özellikleri üzerindeki etkileri incelenmiş ve uygun üretim süreçleri ile rEPS kullanımının optimize edilmesi gerektiği vurgulanmıştır. Bu çalışma, rEPS kullanımının epoksi kompozit malzemelerdeki performansını anlamak için önemli bir adım olmuş ve gelecekteki araştırmalar için bir temel sağlamıştır.

Anahtar Kelimeler

• Epoksi
• Polimer kompozit
• Genleştirilmiş Polistiren
• Sürdürülebilirlik
• Geri dönüşüm
• Performans

Kaynakça

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