Halloysite nanotubes reinforced polybutylene terephthalate based nanocomposites: mechanical, thermal, structural and morphological characterizations
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Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Adana Alparslan Türkeş Bilim ve Teknoloji Üniversitesi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Polibütilen tereftalat (PBT) nanokompozitler, birlikte dönen çift vidalı ekstrüder kullanılarak iki çeşit Türk halloysit nanotüp (HN) ile eritilerek harmanlanmıştır. Doğal olarak oluşan HN numuneleri, ağırlıkça %1, %3, %5 ve %10 HN bileşimlerinde PBT bazlı kompozitler üretmek için kullanılmıştır. PBT boncuk formunda, Advanit ticari adıyla Adana'da bulunan Sasa Polyester A.Ş.'den temin edilmiştir. Saf ve silan modifikasyonlu HN ise, ESH HNT ve ESH HNT S ticari adlarıyla İstanbul'da bulunan Eczacıbaşı Esan firmasından tedarik edilmiştir. Test numuneleri enjeksiyon kalıplama prosesi ile hazırlanmıştır. Üretilen nanokompozitlerin mekanik, termo-mekanik, termal kararlılık, eriyik akışı, yapısal ve morfolojik özellikleri sırasıyla çekme, darbe ve shore sertlik testleri, dinamik mekanik analiz (DMA), termo-gravimetrik analiz (TGA), erime akış hızı ve özkütle ölçümleri ve taramalı elektron mikroskobu (SEM) yöntemleri kullanılarak tayin edilmiştir. Polimer matris ve takviye malzemesi arasındaki ara yüzey yapışmasını araştırmak için saf ve silan kaplı HN içeren kompozit numunelerin sonuçları karşılaştırılmıştır.
Polybutylene terephthalate (PBT) nanocomposites were melt-blended with two types of Turkish halloysite nanotubes (HN) using a co-rotating twin-screw extruder. Naturally occurring HN samples were used to produce PBT-based composites at the HN compositions of 1%, 3%, 5%, and 10% by weight. PBT was purchased as bead form under the trade name of Advanite from Sasa polyester A.Ş., Adana, Turkey. Neat and silane-modified grade of HN was supplied by Eczacıbaşı Esan, İstanbul, Turkey with the trade names of ESH HNT and ESH HNT S, respectively. Test samples were prepared by an injection molding process. Mechanical, thermo-mechanical, thermal stability, melt-flow, structural and morphological properties of the produced nanocomposites were reported using tensile, impact and shore hardness tests, dynamic mechanical analysis (DMA), thermo-gravimetric analysis (TGA), melt flow rate and density measurements and scanning electron microscopy (SEM) methods, respectively. Results of neat and silane coated HN containing composite samples were compared in order to investigate the interfacial adhesion between polymer matrix and reinforcement material.
Polybutylene terephthalate (PBT) nanocomposites were melt-blended with two types of Turkish halloysite nanotubes (HN) using a co-rotating twin-screw extruder. Naturally occurring HN samples were used to produce PBT-based composites at the HN compositions of 1%, 3%, 5%, and 10% by weight. PBT was purchased as bead form under the trade name of Advanite from Sasa polyester A.Ş., Adana, Turkey. Neat and silane-modified grade of HN was supplied by Eczacıbaşı Esan, İstanbul, Turkey with the trade names of ESH HNT and ESH HNT S, respectively. Test samples were prepared by an injection molding process. Mechanical, thermo-mechanical, thermal stability, melt-flow, structural and morphological properties of the produced nanocomposites were reported using tensile, impact and shore hardness tests, dynamic mechanical analysis (DMA), thermo-gravimetric analysis (TGA), melt flow rate and density measurements and scanning electron microscopy (SEM) methods, respectively. Results of neat and silane coated HN containing composite samples were compared in order to investigate the interfacial adhesion between polymer matrix and reinforcement material.
Açıklama
Fen Bilimleri Enstitüsü, Malzeme Mühendisliği Ana Bilim Dalı
Anahtar Kelimeler
Polimer Bilim ve Teknolojisi, Polymer Science and Technology
