Surface modification of magnesium hydroxide and its application in flame‐retardant oil‐extended styrene–ethylene–butadiene–styrene/polypropylene composites

2018 ◽  
Vol 136 (9) ◽  
pp. 47129 ◽  
Author(s):  
Lubin Liu ◽  
Miaojun Xu ◽  
Yumeng Hu ◽  
Yue Xu ◽  
Zhiyong Zhang ◽  
...  
Keyword(s):  
Surface Modification ◽  
Flame Retardant ◽  
Magnesium Hydroxide ◽  
Polypropylene Composites ◽  
Butadiene Styrene

Surface modification of magnesium hydroxide and its application in flame retardant polypropylene composites

2009 ◽  
Vol 44 (5) ◽  
pp. 1324-1332 ◽  
Author(s):  
Xiaolang Chen ◽  
Jie Yu ◽  
Shaoyun Guo ◽  
Shengjun Lu ◽  
Zhu Luo ◽  
...  
Keyword(s):  
Surface Modification ◽  
Flame Retardant ◽  
Magnesium Hydroxide ◽  
Polypropylene Composites

Surface Modification of Brucite and its Application in Flame Retardant Polypropylene Composites

2012 ◽  
Vol 538-541 ◽  
pp. 214-217
Author(s):  
Ai Ling Zhang ◽  
Ting Chang ◽  
San Xi Li ◽  
Song Wang ◽  
Song Jiang Chi
Keyword(s):  
Tensile Strength ◽  
Surface Modification ◽  
Flame Retardant ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Polypropylene Composites ◽  
Silane Coupling

The surface modification of superfine brucite using silane coupling agent as a modifier was studied. The results of the best modified conditions show that the treated time is 1.5h, the treated temperature is 40°C, the content of silane coupling agent is 7wt%,the stirring speed is 600r/min. In this condition, the activation index up to 93.5%; the treated brucite particles filled into polypropylene(PP), the best tensile strength of 28.63MPa and the LOI of 30% is measured.

Surface Modification of Super-Fine Magnesium Hydroxide Powder and it’s Flame-Retardant Treatment of Flexible PVC

2009 ◽  
Vol 610-613 ◽  
pp. 165-170
Author(s):  
Gao Xiang Du ◽  
Hao Ding ◽  
Bai Kun Wang ◽  
Qiang Xue
Keyword(s):  
Surface Modification ◽  
Flame Retardant ◽  
Magnesium Hydroxide ◽  
Fire Retardant ◽  
Volume Resistivity ◽  
Mass Composition ◽  
Environment Friendly ◽  
Stable Chemical ◽  
Surface Modified ◽  
Halogen Free

Surface modification is very important to industrial application of the magnesium hydroxide (MDH) powder, which is used as a kind of environment-friendly flame-retardant. In this paper, a kind of MDH powder surface-modified with silicane coupling agent and stearic acid is synthesized, and its potential usage in the flame-retardant treatment of flexible PVC is studied. The influence of the surface treatment to the dispersion of the powder in PVC, the flame-retardant and other physical properties of the MDH flame-retardant treated flexible PVC are discussed in detail. The surface modification mechanism of MDH is studied by the FTIR analysis, and then the surface modification model is established. Results show that molecules between the surface of the particle and these two modifiers form stable chemical bonds, and this kind of surface modification can improve the MDH’s dispersion and the compatibility of the flexible PVC. When the flame-retardant flexible PVC is produced according to the mass composition of PVC/DOP/MDH=100:50:80 and a few other additives, its oxygen index is 31.5, the elongation at break is 240%, the tensile strength is 13.0MPa, the hypothermia tendering is +30/-0, the volume resistivity at 20°C is 3.2×1011Ω•m. These index are just correspondent with requires of the halogen-free fire-retardant flexible PVC.

Effect of Flame Retardant on Flame Retardancy and Mechanical Properties of Glass Fiber/Polypropylene Composites

2011 ◽  
Vol 264-265 ◽  
pp. 652-656 ◽  
Author(s):  
Rachasit Jeencham ◽  
Nitinat Suppakarn ◽  
Kasama Jarukumjorn
Keyword(s):  
Mechanical Properties ◽  
Thermal Behavior ◽  
Glass Fiber ◽  
Flame Retardant ◽  
Magnesium Hydroxide ◽  
Negative Impact ◽  
Decomposition Temperature ◽  
Melt Mixing ◽  
Polypropylene Composites ◽  
Thermogravimetric Analyzer

Composites based on polypropylene and glass fiber were prepared by melt mixing. The effect of magnesium hydroxide as a flame retardant on flammability and thermal behavior of glass fiber/polypropylene composites was studied. Ratio of glass fiber to magnesium hydroxide in each composite sample was varied. Maleic anhydride grafted polypropylene (MAPP) was used to improve the interfacial adhesion between polypropylene and fillers. Flammability and thermal behavior of the composites were examined using a horizontal burning test and a thermogravimetric analyzer, respectively. Morphology and mechanical properties of the composites were also investigated. Magnesium hydroxide reduced the flammability while improved thermal decomposition temperature of the polypropylene composites. However, magnesium hydroxide showed a negative impact on the tensile strength of the polypropylene composites.

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