赋予木塑复合材料(WPC)的阻燃性能成为近年来该领域国内外的研究热点之一.本文通过两轮正交试验,研究8种常见的协效剂对膨胀型阻燃剂(IFRs,m(聚磷酸铵,APP)∶m(季戊四醇,PER)=2∶1)的阻燃增效作用,筛选出具有显著协效作用的协效剂组MgO/EG(可膨胀石墨)/SiO2,其组成为m(MgO)∶m(EG)∶m(SiO2)=1∶5∶5,其与IFRs的最佳配比为m(IFRs)∶m(MgO/EG/SiO2)=1∶0.18,得到性能良好的阻燃型聚丙烯基木塑复合材料.通过热重分析(TGA)和锥形量热分析(CONE)评价IFRs及协效剂组对聚丙烯(PP)基木塑复合材料(WPC)热稳定性能和阻燃性能的影响.结果表明,IFRs及MgO/EG/SiO2的加入可以有效提高WPC的热稳定性,WPC/IFRs/MgO/EG/SiO2 600℃的残炭率达到22.42％.WPC/IFRs的热释放速率峰(PHRR)、总热释放量(THR)和总烟释放量(TSP)相比于WPC分别降低了21.9％、8.7％和22％.MgO/EG/SiO2的加入可以进一步提高IFRs的阻燃效率,WPC/IFRs/MgO/EG/SiO2的PHRR和THR相比于WPC分别降低了33.0％和13.8％.
参考文献
| [1] | Le Bras, M;Duquesne, S;Fois, M;Grisel, M;Poutch, F.Intumescent polypropylene/flax blends: a preliminary study[J].Polymer Degradation and Stability,20051(1):80-84. |
| [2] | Zhou, L.;Guo, C.;Li, L..Influence of ammonium polyphosphate modified with 3-(methylacryloxyl) propyltrimethoxy silane on mechanical and thermal properties of wood flour-polypropylene composites[J].Journal of Applied Polymer Science,20112(2):849-855. |
| [3] | Laoutid, F;Bonnaud, L;Alexandre, M;Lopez-Cuesta, JM;Dubois, P.New prospects in flame retardant polymer materials: From fundamentals to nanocomposites[J].Materials Science & Engineering. R, Reports,20093(3):100-125. |
| [4] | Wu, ZP;Hu, YC;Shu, WY.Effect of Ultrafine Zinc Borate on the Smoke Suppression and Toxicity Reduction of a Low-Density Polyethylene/Intumescent Flame-Retardant System[J].Journal of Applied Polymer Science,20101(1):443-449. |
| [5] | Zhu, H.;Zhu, Q.;Li, J.;Tao, K.;Xue, L.;Yan, Q..Synergistic effect between expandable graphite and ammonium polyphosphate on flame retarded polylactide[J].Polymer Degradation and Stability,20112(2):183-189. |
| [6] | Lei Ye;Yunjie Zhang;Shuhong Wang;Guanggang Gao;Jianxun Liu;Yulong Zhou;Hong Liu.Synergistic effects and mechanism of ZnCl_2 on intumescent flame-retardant polypropylene[J].Journal of thermal analysis and calorimetry,20142(2):1065-1071. |
| [7] | Ma, Z.-L.;Fan, C.-R.;Lu, G.-Y.;Liu, X.-Y.;Zhang, H..Synergy of magnesium and calcium oxides in intumescent flame-retarded polypropylene[J].Journal of Applied Polymer Science,20125(5):3567-3574. |
| [8] | Lin, M.;Li, B.;Li, Q.;Li, S.;Zhang, S..Synergistic effect of metal oxides on the flame retardancy and thermal degradation of novel intumescent flame-retardant thermoplastic polyurethanes[J].Journal of Applied Polymer Science,20114(4):1951-1960. |
| [9] | Ren, Q.;Zhang, Y.;Li, J.;Li, J.C..Synergistic effect of vermiculite on the intumescent flame retardance of polypropylene[J].Journal of Applied Polymer Science,20112(2):1225-1233. |
| [10] | Rimin Zhou;Xuejun Lai;Hongqiang Li.Enhancement of Wollastonite on Flame Retardancy and Mechanical Properties of PP/IFR Composite[J].Polymer Composites,20141(1):158-166. |
| [11] | 聂芹;张佳欢;陈思;王旭.改性海泡石与金属氧化物对膨胀阻燃PP燃烧性能的影响[J].塑料工业,2012(3):108-111,121. |
| [12] | 吴娜;杨荣杰;郝建薇;刘国胜.金属氧化物对聚丙烯膨胀阻燃体系阻燃性能的影响[J].高分子学报,2009(12):1205-1210. |
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