聚磷酸铵处理秸秆/聚己内酯复合材料的阻燃性能  

Effect of ammonium polyphosphate on flame retardancy of waste straw/polycaprolactone composites

作　　者：李臻 吕丽华[1] LI Zhen;LYU Lihua(Dalian Polytechnic University,Dalian 116034,Liaoning,China)

机构地区：[1]大连工业大学,辽宁大连116034

出　　处：《上海纺织科技》2022年第10期22-24,30,共4页Shanghai Textile Science & Technology

基　　金：2019年大连市科技创新基金项目(2019J12SN71)。

摘　　要：对废弃秸秆/聚己内酯复合材料的阻燃性能进行了探究,采用单因素试验法,对阻燃处理时间、聚磷酸铵质量分数进行探究,得出最优工艺条件为:热压温度120℃、压力10 MPa、时间20 min、秸秆质量分数30%、密度0.450 g/cm^(3)、阻燃处理时间3 h、聚磷酸铵质量分数12%。在此工艺条件下,材料的极限氧指数为27.7%。通过SEM及SEM-EDS对复合材料的燃烧残渣进行分析,发现阻燃处理后复合材料能够生成具有保护作用的炭层保护秸秆,且复合材料燃烧后其骨架保存较完整,验证了聚磷酸铵的阻燃机理。The flame retardancy of discarded straw/poly(caprolactone) composite is investigated. Single factor experiment method is used to investigate the flame retardant treatment time and mass fraction of ammonium polyphosphate. The optimal technological conditions of discarded straw/poly(caprolactone) composite are optimized as follows: hot pressing temperature 120 ℃, pressure 10 MPa, time 20 min, straw mass fraction 30%, density 0.450 g/cm^(3), flame retardant treatment time 3 h, and mass fraction of ammonium polyphosphate 12%. Under the process condition, the limiting oxygen index of the material is 27.7%. SEM and SEM-EDS are used to analyze the combustion residue of the composites. It is found that the waste straw/polycaprolacone composite could generate carbon layer of straw after flame retardant treatment, and the skeleton of the composites is intact after combustion, which is consistent with the flame retardant mechanism of ammonium polyphosphate.

关 键 词：复合材料 秸秆 聚磷酸铵 阻燃性能 

分 类 号：TS102.65[轻工技术与工程—纺织工程] TS102.9[轻工技术与工程—纺织科学与工程]