Stiren polimerler, stireni monomer olarak alır. Genel amaçlı polistiren (GPPS), bu kategorideki tüketim miktarı ile ana polimerdir ve bunu akrilonitril bütadien stiren (ABS) takip eder. Polistiren özellikleri, inşaat, ambalaj ve tüketim malları gibi birçok endüstrideki çok sayıda uygulama için idealdir.
Genel Amaçlı Polistiren Kristal (GPPS )
Genel kullanım polistiren nispeten güçlü ve kötü hava koşullarına dayanıklıdır. Kolayca akar ve oyuncak, CD-DVD kılıfları ve plastik bardak gibi ürünlerin imalatında kalıplamaya uygun hale getirir. Açık ve parlak bir görünüme sahiptir.
Yüksek darbe polistiren (HIPS), PS ve kauçuktan oluşur ve bu sebeple opak ve beyazdır. İşleme ve üretimi kolay, çok yönlü, ekonomik ve darbeye dayanıklı bir plastiktir. Mükemmel boyutsal kararlılığa sahip olduğu ve üretimi, boyaması ve yapıştırması kolay olduğundan üretim öncesi prototiplerin işlenmesinde sıklıkla kullanılır.
MABS, ABS'ye göre daha homojen bir polimerizasyona, daha iyi eriyik işlenebilirliğine, daha açık bir renge ve ultraviyole ışığa karşı daha fazla kararlılığa sahiptir. Ayrıca MABS daha düşük ısı bozulma sıcaklığına sahiptir.
Stiren akrilonitril (SAN), diğer termoplastiklere göre orta derecede düşük sünekliğe sahiptir ve yüksek ısıl direncinden dolayı polistiren yerine çok yaygın olarak kullanılır.
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