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Impact of melamine and its derivatives on the properties of poly(vinyl acetate)-based composite wood adhesive
European Journal of Wood and Wood Products ( IF 2.4 ) Pub Date : 2020-11-09 , DOI: 10.1007/s00107-020-01618-6
Zuzanna Góral , Joanna Mastalska-Popławska , Piotr Izak , Paweł Rutkowski , Joanna Gnyla , Tomasz M. Majka , Krzysztof Pielichowski

A fire retardant composite adhesive for bonding wood and wood-based elements has been developed and characterized. To obtain the enhanced fire-proof properties of the wood adhesive dispersion based on the poly(vinyl acetate) (PVAc), ceramic fillers (17.5 wt% total)—alumina, silica, kaolin and glass fibers were applied. Moreover, fire retardants such as melamine, melamine phosphate and melamine polyphosphate (up to 7 wt%) were also used. Thermal analysis (TG-DSC), strength tests, rheology, pH and flammability measurements (PCFC) were performed. The best properties of the adhesive were achieved for ceramic additives supported by melamine phosphate. A slight improvement of shear strength, shift of the last decomposition step of PVAc (residue degradation) towards higher temperatures by about 50 °C, reduction in mass loss from 100 wt% to less than 70 wt% and about 30–40% improvement of flammability parameters such as heat release capacity, total heat release or peak heat release rate were found compared to the pure poly(vinyl acetate) adhesive.



中文翻译:

三聚氰胺及其衍生物对聚醋酸乙烯酯基复合木胶性能的影响

已经开发并表征了用于粘合木材和木质元素的阻燃复合胶粘剂。为了获得基于聚醋酸乙烯酯(PVAc)的木材粘合剂分散体的增强的防火性能,使用了陶瓷填料(总量为17.5 wt%)-氧化铝,二氧化硅,高岭土和玻璃纤维。此外,还使用了三聚氰胺,磷酸三聚氰胺和聚磷酸三聚氰胺等阻燃剂(最高含量为7 wt%)。进行了热分析(TG-DSC),强度测试,流变学,pH和可燃性测量(PCFC)。对于以三聚氰胺磷酸盐为载体的陶瓷添加剂,该胶粘剂具有最佳性能。剪切强度略有提高,PVAc的最后分解步骤(残留降解)向约50°C的高温转移,

更新日期:2020-11-09
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