Low Density, Thermally Stable, and Intrinsic Flame Retardant Poly(bis(benzimidazo)Benzophenanthroline-dione) Sponge

2018 ◽  
Vol 303 (4) ◽  
pp. 1700615 ◽  
Author(s):  
Jian Zhu ◽  
Shaohua Jiang ◽  
Haoqing Hou ◽  
Seema Agarwal ◽  
Andreas Greiner
Keyword(s):  
Flame Retardant ◽  
Low Density ◽  
Thermally Stable

Preparing and Applying of Flame Retardant Microcapsules Containing Magnesium Hydroxide

2013 ◽  
Vol 734-737 ◽  
pp. 2191-2194
Author(s):  
Li Li Wu ◽  
Yuan Lian ◽  
Dan Liu ◽  
Hua Zheng ◽  
Dian Wu Huang
Keyword(s):  
Thermal Stability ◽  
Flame Retardant ◽  
Magnesium Hydroxide ◽  
Low Density Polyethylene ◽  
Core Shell ◽  
Low Density ◽  
Melamine Resin ◽  
Shell Material ◽  
Elongation At Break ◽  
Good Thermal Stability

In this study, flame retardant microcapsules were synthesized using magnesium hydroxide as core materials, melamine resin as the shell material. The structure, diameters and thermal properties of prepared microcapsules were investigated by using FTIR, ELS, DSC and TGA. The effects of core/shell ratio on the properties of microcapsules were studied.Flame retardant materials of low-density polyethylene/magnesium hydroxide microcapsules were prepared.The tensile strength and elongation at break tests were performed to determine its mechanical property.Inflammability of the materials was also studied.The results showed the prepared magnesium hydroxide microcapsule shows good thermal stability and it has free compatibility with the polymer.The composites of HDPE/MH microcapsules have good performance．

Study of using aluminum hypophosphite as a flame retardant for low-density polyethylene

2017 ◽  
Vol 41 (8) ◽  
pp. 983-992 ◽  
Author(s):  
Shenghui Tian ◽  
Hui He ◽  
Dekang Wang ◽  
Peng Yu ◽  
Yunchao Jia ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Aluminum Hypophosphite

scholarly journals Flame Retardant Polypropylene Composites with Low Densities

Materials ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 152 ◽  
Author(s):  
Nerea Pérez ◽  
Xiao-Lin Qi ◽  
Shibin Nie ◽  
Pablo Acuña ◽  
Ming-Jun Chen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
Zirconium Phosphate ◽  
Synergetic Effect ◽  
Low Density ◽  
Material Density ◽  
Polypropylene Composites ◽  
Peak Heat Release Rate ◽  
Pp Composites

Polypropylene (PP) is currently widely used in areas requiring lightweight materials because of its low density. Due to the intrinsic flammability, the application of PP is restricted in many conditions. Aluminum trihydroxide (ATH) is reported as a practical flame retardant for PP, but the addition of ATH often diminishes the lightweight advantage of PP. Therefore, in this work, glass bubbles (GB) and octacedylamine-modified zirconium phosphate (mZrP) are introduced into the PP/ATH composite in order to lower the material density and simultaneously maintain/enhance the flame retardancy. A series of PP composites have been prepared to explore the formulation which can endow the composite with balanced flame retardancy, good mechanical properties, and low density. The morphology, thermal stability, flame retardancy, and mechanical properties of the composites were characterized. The results indicated the addition of GB could reduce the density, but decreased the flame retardancy of PP composites at the same time. To overcome this defect, ATH and mZrP with synergetic effect of flame retardancy were added into the composite. The dosage of each additive was optimized for achieving a balance of flame retardancy, good mechanical properties, and density. With 47 wt % ATH, 10 wt % GB, and 3 wt % mZrP, the peak heat release rate (pHRR) and total smoke production (TSP) of the composite PP-4 were reduced by 91% and 78%, respectively. At the same time, increased impact strength was achieved compared with neat PP and the composite with ATH only. Maintaining the flame retardancy and mechanical properties, the density of composite PP-4 (1.27 g·cm−3) is lower than that with ATH only (PP-1, 1.46 g·cm−3). Through this research, we hope to provide an efficient approach to designing flame retardant polypropylene (PP) composites with low density.

Fly ash used as a reinforcing and flame-retardant filler in low-density polyethylene

Polimery ◽  
2015 ◽  
Vol 60 (04) ◽  
pp. 251-257 ◽  
Author(s):  
Anna Porabka ◽  
Kamil Jurkowski ◽  
Jadwiga Laska
Keyword(s):  
Fly Ash ◽  
Flame Retardant ◽  
Low Density Polyethylene ◽  
Low Density
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