Geri dönüştürülmüş kestamidlerin mekanik özellikleri

Yıl 2017, Cilt: 23 Sayı: 1, 36 - 39, 01.03.2017

Hilal Can

Öz

Atmosfer
koşullarında dökülebilme kabiliyetine sahip poliamid türü kestamid (döküm
poliamid) olarak adlandırılmaktadır. Kestamidlerin ergime sıcaklıklarının
poliamidlerin ergime sıcaklıklarına göre daha düşük olması nedeniyle
kestamidler daha iyi dayanım ve tokluk değerlerine sahiptir. Gün geçtikçe artan
kullanım alanına sahip olan kestamidlerin sodyum, magnezyum, katı ve ya sıvı
yağ katkılı türleri mevcuttur. Bu çalışmada, yarı mamul kestamidden atölye
koşullarında yeniden üretilen numunelerin mekanik özellikleri belirlenmiştir.
Yarı mamul ve geri dönüştürülmüş numunelerin mekanik özellikleri ve nem emme
kabiliyetleri karşılaştırılmıştır. Geri dönüştürülmüş kestamidde ortalama
üniform uzama yarı mamule göre 30 kat azalırken, ortalama çekme dayanımı yarı mamulün
ortalama çekme dayanımının %17.3’ü kadar olarak saptanmıştır.

Anahtar Kelimeler

Kestamid, Döküm poliamid, Mekanik özellikler, Nem özellikleri

Mechanical properties of recyled cestamides

Öz

A kind
of polyamide which can be obtained by casting in atmospheric conditions is
called as cestamide (cast polyamide). Due to cestamides have a lower melting
temperature compared to polyamides, cestamides have the values of better
strength and toughness. Cestamides, which their usage areas are growing over
time, have also other types including additives of sodium, magnesium, solid or
liquid oil. In this study, the mechanical properties of samples reproduced from
scrap cestamide at workshop conditions have been determined. The values of
recycled samples have been compared with the results of experiments done for
semi-finished. Recycled samples have lower mechanical properties to semi-finished
samples. Average uniform stretching of recycled samples 30 times lower than
cestamide semi-finished samples. Recycled samples have 17.3% tensile strength
to semi-finished samples.

Anahtar Kelimeler

Cestamide, Cast polyamide, Mechanical properties, Humidity properties

Kaynakça

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