Development of polypropylene (PP) filled with aluminium trihydride (ATH) as flame retardant nanocomposites /
Polypropylene (PP) has been widely used in many application due to its desirable properties. However, improvement needs to be done in order to diversify its application for example in its flame retardancy properties. Aluminium trihydrate (ATH) is one of the flame retardant materials used to improve...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
Kuala Lumpur :
Kulliyyah of Engineering, International Islamic University Malaysia,
2015
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| Subjects: | |
| Online Access: | Click here to view 1st 24 pages of the thesis. Members can view fulltext at the specified PCs in the library. |
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| Summary: | Polypropylene (PP) has been widely used in many application due to its desirable properties. However, improvement needs to be done in order to diversify its application for example in its flame retardancy properties. Aluminium trihydrate (ATH) is one of the flame retardant materials used to improve the flame retardancy properties of polymer. It is known that PP and ATH are incompatible with each other. Therefore, to overcome the problems, suitable type and amount of coupling agent need to be used. In this study, two types of coupling agents were used which are silane (3-aminopropyltriethoxysilane, APS) at 2% and maleic anhydride grafted polypropylene (MAPP) which determined to be 1 wt%. These coupling agents were incorporated in PP matrix which filled with various amount of ATH nanoparticles (5, 10, 20, 30, and 40 wt%). Sample of PP filled with micron ATH particles at 40 wt% was also developed for comparison purposes. All compositions of PP/ATH nanocomposites were processed with an extruder machine at 180 oC with speed of 70-90 rpm and followed by injection moulding. It is found that the mechanical properties of PP/ATH nanocomposites without a coupling agent decreased, particularly at high loadings of ATH. An optimum result was obtained in PP/ATH nanocomposites filled with 5wt% ATH. The FESEM analysis showed the interfacial adhesion properties between PP and ATH also the agglomeration of the ATH particles at high loading. The presence of both coupling agents improved the mechanical and flame resistance properties of PP/ATH nanocomposites, particularly MAPP. The PP/ATH nanocomposites showed increment trends for thermal and flame retardancy properties when ATH loading increased. Minor comparison with PP composites added with micron-meter sized ATH particle found that the particle size did slightly affect the mechanical and flame properties. |
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| Physical Description: | xvii, 121 leaves : ill. ; 30cm. |
| Bibliography: | Includes bibliographical references (leaves 116-121). |