Browsing by Author "R. Mukkayadechochai"

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    Flame retarding improvement of nylon 6,6 composites with zeolite
    (European Conference on Composite Materials, ECCM, 2014) P. Threepopnatkul; R. Mukkayadechochai; W. Jarunavin; W. Khamkhly; C. Kulsetthanchalee
    In this research, the effects of types and contents of zeolite were investigated on flammability of Nylon 6, 6. Different zeolite types such as 3A, 4A and 5A at the content of 5, 10 and 15% by weight were compounded with Nylon 6, 6 by using twin-screw extruder. Flammability of samples was characterized with limiting oxygen index (LOI), vertical burning test (UL94) and thermogravimetric analysis. LOI of Nylon 6, 6 composites with zeolite 5A was higher than Nylon 6, 6 composites with zeolite 3A and 4A, respectively. Testing UL94 of virgin Nylon6, 6 showed dripping as classified V-2 type while Nylon6, 6 composites with 15% wt of zeolite 3A, 4A, 5A had no dripping which was classified as V-0 type. Moreover, the addition of zeolite in Nylon6, 6 led to relatively lower thermal degradation compared to neat Nylon 6, 6 especially for the case of Nylon 6, 6 with zeolite type of 4A.