摘要
以聚丙烯接枝马来酸酐(PP-g-MAH)和有机蒙脱土(OMMT)为原料,通过熔融插层制备了PP-g-MAH/OMMT纳米复合阻燃母料,利用X射线衍射(XRD)及热失重分析(TGA)对其进行了表征,并将其与碱式硫酸镁晶须(MOS)复配,制备了阻燃性能及力学性能优良的阻燃PP。结果表明,PP-g-MAH能够插层进入OMMT层间,形成插层型纳米复合物;PP-g-MAH/OMMT中PP-g-MAH的外推起始失重温度由纯PP-g-MAH的269.8℃提高到375.6℃。以PP-g-MAH/OMMT及MOS制备的阻燃PP的热释放速率峰值(PHRR)和平均热释放速率(MHRR)分别为163.7kW/m2和117.9kW/m2,比基体树脂下降了80.3%和70.9%。
The flame retardant PP-g-MAH/OMMT nanocomposite master batch was prepared with maleic anhydride grafted polypropylene （PP-g-MAH） and organophilic montmorillonite （OMMT） by melt intercalation. The master batch was characterized by means of XRD and TGA. Flame retardant PP with high flame retardancy and mechanical properties was prepared with PP-g-MAH/OMMT master batch and magnesium sulfate whisker （MOS）, The results showed that PP-g-MAH can intercalate into the interlayer of OMMT to form the intercalation nanocomposites. TGA results showed that the initial decomposition temperature of PP-g-MAH in master batch increased to 375.6 ℃ from 269.8 ℃ of pure PP-g-MAH. The peak heat release rate （PHRR） and mean heat release rate （MHRR） of flame retardant PP was 163.7 kW/m^2 and 117,9 kW/m^2, which was decreased by 80.3% and 70.9% than that of matrix resin respectively.
出处
《塑料科技》
CAS
北大核心
2009年第2期35-38,共4页
Plastics Science and Technology
基金
广东省科技计划重大科技专项基金(2003A1070202)
关键词
聚丙烯
马来酸酐
蒙脱土
纳米复合物
阻燃母料
接枝
Polypropylene
Maleic anhydride
Montmorillonite
Nanocomposites
Flame retardant masterbatch
Graft
