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The Effect of Nickel Compound on the Flame Retardancy of HIPS Based PLS Composites

Zhang Ying-yi

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Abstract

The effects of a number of nickel compounds including nickel alkali carbonate (Ni2(OH)2CO3),nickel sulphate (NiSO4),nickel chloride (NiCl2) and nickel oxide (NiO) on the flame retardancy of HIPS and high impact polystyrene/organic montmorillonite (HIPS/OMMT) composites were studied by using cone calorimeter. Meanwhile,the char residues of composites were analyzed by scanning electron microscopy(SEM). The cone calorimeter results demonstrate that among the nickel compounds study NiSO4 and NiO compounds functioned are relatively more effective in terms of reduction of heat release rates of HIPS alone,while NiO significantly improves flame retardancy of HIPS/OMMT composites. The SEM analysis shows that the char residue of HIPS/OMMT/NiO composite is more condensed and also a stronger combination between NiO and OMMT is formed.

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What this paper is about

The effects of a number of nickel compounds including nickel alkali carbonate (Ni2(OH)2CO3),nickel sulphate (NiSO4),nickel chloride (NiCl2) and nickel oxide (NiO) on the flame retardancy of HIPS and high impact polystyrene/organic montmorillonite (HIPS/OMMT) composites were studied by using cone calorimeter. Meanwhile,the char residues of composites were analyzed by scanning electron microscopy(SEM). The cone calorimeter results demonstrate that among the nickel compounds study NiSO4 and NiO compounds functioned are relatively more effective in terms of reduction of heat release rates of HIPS alone,while NiO significantly improves flame retardancy of HIPS/OMMT composites. The SEM analysis shows that the char residue of HIPS/OMMT/NiO composite is more condensed and also a stronger combination between NiO and OMMT is formed.

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Available abstract

The effects of a number of nickel compounds including nickel alkali carbonate (Ni2(OH)2CO3),nickel sulphate (NiSO4),nickel chloride (NiCl2) and nickel oxide (NiO) on the flame retardancy of HIPS and high impact polystyrene/organic montmorillonite (HIPS/OMMT) composites were studied by using cone calorimeter. Meanwhile,the char residues of composites were analyzed by scanning electron microscopy(SEM). The cone calorimeter results demonstrate that among the nickel compounds study NiSO4 and NiO compounds functioned are relatively more effective in terms of reduction of heat release rates of HIPS alone,while NiO significantly improves flame retardancy of HIPS/OMMT composites. The SEM analysis shows that the char residue of HIPS/OMMT/NiO composite is more condensed and also a stronger combination between NiO and OMMT is formed.

Key concepts: Cone calorimeter, Materials science, Nickel, Char, Non-blocking I/O, Composite material, Nickel oxide, Scanning electron microscope

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