9,10-二氢-9-氧杂-10-磷菲-10-氧化物衍生物/钼酸锌sepiolite改性丙烯酸酯乳液的阻燃和抑烟性能

IF 2 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Yong Liu, Tao Zhang, Xin-xi Geng, Xiang Liao
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引用次数: 0

摘要

丙烯酸酯乳液广泛应用于各种工业领域,是一种重要的聚合物乳液。然而,高易燃性限制了它的应用。此外,丙烯酸酯乳液在燃烧过程中通常会释放大量烟雾。为了提高丙烯酸酯乳液的阻燃性和抑烟性能,采用乳液聚合法制备了甲基丙烯酸甲酯-丙烯酸丁酯共聚物 P(MMA-BA)/DOPO 基可聚合单体(HEPO)/钼酸锌海泡石(Mo-Sep)复合乳液,并研究了 Mo-Sep 含量对复合乳液阻燃性能、热稳定性和抑烟性能的影响。通过微量热仪和烟密度计测试发现,添加 30% HEPO/3% Mo-Sep 的复合乳液的热释放率(HRR)降低了 63.3%,峰值热释放率(PRR)降低了 72.1%。总释放热量(THR)降低了 49.0%,峰值特定光密度降低了 48.0%。这表明,与纯 MAA-BA 乳液相比,复合乳液具有优异的阻燃和抑烟性能。此外,扫描电子显微镜(SEM)图像显示,Mo-Sep 的加入增加了碳残留物的密度。这种复合乳液在阻燃涂料领域具有潜在的应用前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Flame retardant and smoke suppression properties of 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide derivative/zinc molybdate sepiolite modified acrylate emulsion

Acrylate emulsion is widely used in various industrial fields and is an important polymer emulsion. However, the high flammability limits its application. Besides, acrylate emulsion generally releases a large amount of smoke during combustion. To improve the fire resistance and smoke suppression properties of acrylate emulsions, methyl methacrylate-butyl acrylate copolymer P(MMA-BA)/DOPO-based polymerizable monomer (HEPO)/zinc molybdate sepiolite (Mo-Sep) composite emulsion was prepared by emulsion polymerization, and the effect of Mo-Sep content on the flame-retardant performance, thermal stability, and smoke suppression performance of the composite emulsion was studied. Through microcalorimeter and smoke density meter tests, it was found that the heat release rate (HRR) of the composite emulsion, added with 30% HEPO/3% Mo-Sep, was reduced by 63.3%, and the peak heat release rate (PHRR) was reduced by 72.1%. The total heat release (THR) is reduced by 49.0%, while the peak-specific optical density is reduced by 48.0%. It shows that the composite emulsion has excellent flame-retardant and smoke suppression properties compared to pure MAA-BA emulsion. In addition, scanning electron microscope (SEM) images show that the addition of Mo-Sep increases the density of carbon residue. This composite emulsion may have potential application scenarios in the field of flame-retardant coatings.

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来源期刊
Fire and Materials
Fire and Materials 工程技术-材料科学:综合
CiteScore
4.60
自引率
5.30%
发文量
72
审稿时长
3 months
期刊介绍: Fire and Materials is an international journal for scientific and technological communications directed at the fire properties of materials and the products into which they are made. This covers all aspects of the polymer field and the end uses where polymers find application; the important developments in the fields of natural products - wood and cellulosics; non-polymeric materials - metals and ceramics; as well as the chemistry and industrial applications of fire retardant chemicals. Contributions will be particularly welcomed on heat release; properties of combustion products - smoke opacity, toxicity and corrosivity; modelling and testing.
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