期刊论文

中文

中国塑料

1001-9278

2013

27

7

33-37

10.19491/j.issn.1001-9278.2013.07.006

:湖南省高校创新平台开放基金项目“阻燃抑烟型竹粉增强聚乳酸复合材料制备及性能研究” (2011FJ1006):湖南省科技重大专项资助

本校为第一机构

利用竹粉和聚乳酸为原料复合制备聚乳酸/竹粉复合材料,分别采用氢氧化铝(ATH)和聚磷酸铵(APP)阻燃剂对聚乳酸/竹粉复合材料进行阻燃抑烟处理并对阻燃处理后的复合材料进行性能测试。结果表明,两种阻燃剂的加人均使复合材料高温下的成炭率提高了约2倍,分别达到了24.7%和25.6%;ATH和APP的加入均有效提高了聚乳酸/竹粉复合材料的阻燃性能;其中,APP对复合材料燃烧过程中热量释放的抑制明显,其热释放速率在燃烧100 s以后下降了近2倍,约为150 kW/m~2,但生烟量大;而ATH对复合材料的抑热效果不及APP,但抑烟效果显著,平均烟释放速率只有约0.02 m~2/s。

Aluminum hydroxide （ATH） and ammonium polyphosphate （APP） were introduced into composites of bamboo flour and poly （lactic acid） separately as flame retardants. Both flame retardants increased char rate about 2 times and achieved 24. 7 % and 25.6 %, respectively. APP was more effective in inhibiting the heat release which decreased to 150 kW/m^2 after 100 s combustion, however, the smoke release was serious. The effect of ATH on the inhibition heat release was less than APP, but the smoke s...