Comparative Study of Fire Resistance and Anti-Ageing Properties of Intumescent Fire-Retardant Coatings Reinforced with Conch Shell Bio-Filler
发布时间：2022-02-25
点击次数：
影响因子：4.329
DOI码：10.3390/polym13162620
发表刊物：POLYMERS
关键字：intumescent fire-retardant coatingsconch shell bio-fillerfire resistanceanti-ageing performancesynergistic effect
摘要：Conch shell bio-filler (CSBF) was prepared by washing, ultrasonicating, and pulverizing of conch shells and then was applied in waterborne intumescent fire-retardant coatings. The influence of CSBF on fire resistance and anti-ageing properties of intumescent fire-retardant coatings were studied by using different analytical methods. The fire protection and smoke density tests showed that when the mass fraction of CSBF was 3%, the resulting FRC3 coating had the optimum synergistic flame-retardant and smoke-suppression effects concomitant with a flame-spread rating of 10.7, equilibrium backside temperature of 152.4 degrees C at 900 s, and smoke-density rating value of 10.4%, which were attributed to the establishment of a more dense and stable intumescent char layer against heat and mass transfer. Thermogravimetric analysis indicated that the presence of CSBF increased the thermal stability and char-forming performance of the coatings, and the char residue of FRC3 rose to 34.6% at 800 degrees C from 28.6% of FRC0 without CSBF. The accelerated ageing test suggested that the incorporation of CSBF reduced the migration and decomposition of the flame retardants and the yellowing, blistering, and powdering phenomenon, thus improving the structural stability of the coating, resulting in better durability of flame retardancy and smoke-suppression performance.
第一作者：Wang, FY ; Liu, H; Yan, L *; Feng, YW
论文类型：期刊论文
学科门类：工学
一级学科：安全科学与工程
文献类型：J
卷号：13
期号：16
页面范围：2620
ISSN号：2073-4360
是否译文：否
发表时间：2021-09-04
收录刊物：SCI