Recycled Newspaper Fiber/Polypropylene Composites with Inorganic Flame Retardants: Flame Retardant and Mechanical Characteristics
DOI:
https://doi.org/10.22034/advjse042014Keywords:
Flame retardancy, Flammability, Mechanical properties, Polypropylene, Recycled newspaper fiber/PP compositeAbstract
This study intends to look at ways to increase the flame retardancy of composite materials made of recycled newspaper fiber (RNF) and polypropylene (PP) matrix. A melt-blending approach followed by injection molding was used to create PP/RNF composites, which have various advantages including low cost, the ability to dispose of industrial waste, and good mechanical properties. Different types and concentration of flame retardants, such as magnesium hydroxide (Mg(OH)2) with smaller particle size and zinc borate with antimony trioxide (ZB-AT), were utilized to increase the flame resistance of the composites. The UL94 test was used to assess the composites' flame resistance. In comparison to pure PP, composite blends of PP/RNF/Mg(OH)2 and PP/RNF/ZB-AT are more fire resistant. Depending on the application, the resulting composite may have different amounts of both elements. Although effects on tensile and impact strength have not been discussed, research has been done and publications have been made regarding improvements in the fire retardant properties of such composites. The strength of the PP/RNF/Mg(OH)2 and PP/RNF/ZB-AT composites were discussed in relation to the effects of Mg(OH)2 and ZB-AT concentration. Study and discussion were conducted about the tensile, flexural, and impact properties. With the addition of flame-retardants, a little drop in the mechanical characteristics of the composites was observed.
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