改性纳米磷酸锆对膨胀阻燃聚丙烯性能的影响  

Effect of Modified n-ZrP on Properties of Intumescent Flame Retardant PP Composite

作　　者：黄健光[1] 姜佳丽[1] 农彦彦[1] 梁敏仪[1] 张浥琨 冯才敏[1] 黄志鑫 欧长良 李景汉 HUANG Jianguang;JIANG Jiali;NONG Yanyan;LIANG Minyi;ZHANG Yikun;FENG Caimin;HUANG Zhixin;OU Changliang;LI Jinghan(College of Light Chemical Industry and Materials Engineering,Shunde Polytechnic,Foshan,Guangdong 528333,China;Guangdong Jinke New Materials Co.Lld,Guangzhou,Guangdong 510000,China)

机构地区：[1]顺德职业技术学院,轻化与材料学院,广东佛山528333 [2]广东金科新材料有限公司,广东广州510000

出　　处：《塑料》2020年第4期87-90,共4页Plastics

基　　金：广东省教育厅创新强校类项目(2018GKTSCX001);攀登计划(pdjh2019b0953)。

摘　　要：以多聚磷酸铵(APP)和季戊四醇(PER)为阻燃体系模板,研究了改性纳米磷酸锆(n-ZrP)对膨胀阻燃聚丙烯复合材料(PP/IFR)阻燃性能的影响,并且采用热重分析(TGA)、红外光谱(FTIR)和扫描电镜(SEM)研究了n-ZrP的阻燃协同作用机理。阻燃性能的研究表明,n-ZrP能够明显改善复合材料的阻燃效果;当n-ZrP添加量为2%时,PP/IFR复合材料的氧指数值达到了31.6%,通过了UL 94 V-0级测试;当n-ZrP添加量为0.5%时,其催化效率达到最高。TGA分析结果表明,n-ZrP能够促使阻燃复合材料提前降解,并保留更多的残碳。FTIR和SEM结果表明,n-ZrP能够起到片层阻隔作用并催化IFR的酯化和交联反应,形成更多含磷的交联结构(P-O-C和P-O-P的),提高炭层的致密程度,从而改善复合材料的阻燃性能。The ammonium polyphosphate(APP),pentaerythrotol(PER) were chosen for intumescent flame retardant template,and the effects of n-ZrP content on flame retardancy of PP/IFR were investigated.The TGA,FTIR and SEM were chosen for synergistic effect characterization.The results from LOI and UL 94 tests indicated that n-ZrP and IFR presented excellent synergistic effects.When the addition of n-ZrP was 2%,the LOI of PP/IFR reached maximal value 31.6%,and passed UL 94 V-0 test.However,the catalytical efficient value reached maximal value when the 0.5% n-ZrP was added.TGA results showed that n-ZrP promoted thermal degradation at advance,and more char was remained.FTIR and SEM results revealed that n-ZrP catalyzed esterification of APP/PER and increased the char residue,and thickened the char structure due to more P-O-C and P-O-P containing networks formed during conbustion.

关 键 词：聚丙烯 改性纳米磷酸锆 膨胀阻燃 阻燃协同作用 阻燃性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]