Influence of ammonium octamolybdate on flame retardancy and smoke suppression of PVC matrix flame retardant composites

IF 1.1 4区工程技术 Q4 ENGINEERING, CHEMICAL

International Polymer Processing Pub Date : 2022-06-01 DOI:10.1515/ipp-2022-0007

Jianlin Xu, Chengsi Li, Shibo Ren, L. Niu, Qingwen Bai, Xiang Li

{"title":"Influence of ammonium octamolybdate on flame retardancy and smoke suppression of PVC matrix flame retardant composites","authors":"Jianlin Xu, Chengsi Li, Shibo Ren, L. Niu, Qingwen Bai, Xiang Li","doi":"10.1515/ipp-2022-0007","DOIUrl":null,"url":null,"abstract":"Abstract In order to improve the flame retardancy and smoke suppression of polyvinyl chloride (PVC), ammonium octamolybdate (AOM)/nano-antimony trioxide (nano-Sb2O3)/dioctyl Phthalate (DOP)/PVC composites were prepared by high energy ball milling and melt blending methods using AOM as the smoke suppressant. The effects of AOM on the flame retardancy and smoke suppression of the PVC composites were studied by means of vertical burning tests (UL-94), limiting oxygen index (LOI), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and cone calorimetry (CCT). The results showed that the flame retardancy of PVC composites containing AOM was improved, namely the UL-94 grade of the composites reached the V-0 grade and the LOI increased from 22.3% to 30.6%, whilst the heat release rate (HRR), total heat release (THR), smoke production rate (SPR), total smoke production (TSR) and smoke factor (SF) decreased significantly. In addition, AOM could promote the dehydrochlorination reaction of the PVC composites at lower temperature, resulting in more compact and continuous char residues. Therefore, AOM is an effective smoke suppressant and has a good synergistic flame retardant effect with nano-Sb2O3 in flame retardant PVC matrix composites.","PeriodicalId":14410,"journal":{"name":"International Polymer Processing","volume":"37 1","pages":"316 - 328"},"PeriodicalIF":1.1000,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Polymer Processing","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1515/ipp-2022-0007","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 1

Abstract

Abstract In order to improve the flame retardancy and smoke suppression of polyvinyl chloride (PVC), ammonium octamolybdate (AOM)/nano-antimony trioxide (nano-Sb2O3)/dioctyl Phthalate (DOP)/PVC composites were prepared by high energy ball milling and melt blending methods using AOM as the smoke suppressant. The effects of AOM on the flame retardancy and smoke suppression of the PVC composites were studied by means of vertical burning tests (UL-94), limiting oxygen index (LOI), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and cone calorimetry (CCT). The results showed that the flame retardancy of PVC composites containing AOM was improved, namely the UL-94 grade of the composites reached the V-0 grade and the LOI increased from 22.3% to 30.6%, whilst the heat release rate (HRR), total heat release (THR), smoke production rate (SPR), total smoke production (TSR) and smoke factor (SF) decreased significantly. In addition, AOM could promote the dehydrochlorination reaction of the PVC composites at lower temperature, resulting in more compact and continuous char residues. Therefore, AOM is an effective smoke suppressant and has a good synergistic flame retardant effect with nano-Sb2O3 in flame retardant PVC matrix composites.

查看原文本刊更多论文

八钼酸铵对PVC基阻燃复合材料阻燃抑烟性能的影响

摘要为了提高聚氯乙烯（PVC）的阻燃性能和抑烟性能，以八钼酸铵（AOM）为抑烟剂，采用高能球磨和熔融共混的方法制备了八钼酸铵/纳米三氧化锑（纳米Sb2O3）/邻苯二甲酸二辛酯（DOP）/PVC复合材料。采用垂直燃烧试验（UL-94）、极限氧指数（LOI）、热重分析（TGA）、扫描电子显微镜（SEM）和锥形量热法（CCT）研究了AOM对PVC复合材料阻燃抑烟性能的影响。结果表明，含有AOM的PVC复合材料的阻燃性能得到了改善，即复合材料的UL-94级达到V-0级，LOI从22.3%提高到30.6%，而热释放率（HRR）、总热释放量（THR）、产烟率（SPR）、总产烟量（TSR）和烟雾因子（SF）显著降低。此外，AOM可以在较低的温度下促进PVC复合材料的脱氯化氢反应，产生更紧密、更连续的残炭。因此，AOM是一种有效的抑烟剂，在阻燃PVC基复合材料中与纳米Sb2O3具有良好的协同阻燃效果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

International Polymer Processing 工程技术-高分子科学

CiteScore

2.20

自引率

7.70%

发文量

审稿时长

6 months

期刊介绍： International Polymer Processing offers original research contributions, invited review papers and recent technological developments in processing thermoplastics, thermosets, elastomers and fibers as well as polymer reaction engineering. For more than 25 years International Polymer Processing, the journal of the Polymer Processing Society, provides strictly peer-reviewed, high-quality articles and rapid communications from the leading experts around the world.