Thermal properties of intumescent coating with waterborne melamine-acrylic emulsion resin for plywood

IF 2.3 4区 材料科学 Q2 Chemistry
Chih-Shen Chuang, Po-Heng Lin
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引用次数: 0

Abstract

A mixture of etherified melamine–formaldehyde and acrylic emulsion resin was designed, with the hybrid resin improving the fire retardancy of indoor plywood as well as the CO and CO2 emissions. The water-based hybrid resin exhibited a single curing peak; the need for solvents was reduced. Compared with pure etherified melamine–formaldehyde resin, the hybrid resin had better flame retardancy and produced less pollution. Scanning electron microscopy and cone calorimetry were conducted, and the analyses revealed that lower binder resin concentrations resulted in improved flame retardancy and better char layer formation. When the binder resin concentrations were increased and CO/CO2 emissions were continued beyond 300 s, the flame retardancy of the intumescent coating was the same as that of the lower binding resin concentrations. Furthermore, the chemical structure and durability of the phosphocarbonaceous structure were verified through Fourier transform infrared spectroscopy and solid-state nuclear magnetic resonance analyses.

Abstract Image

水性三聚氰胺-丙烯酸乳液树脂胶合板膨胀涂层的热性能
设计了一种醚化三聚氰胺甲醛与丙烯酸乳液树脂的混合物,该混合树脂改善了室内胶合板的阻燃性,并降低了CO和CO2的排放。水性杂化树脂呈现单一固化峰;减少了对溶剂的需求。与纯醚化三聚氰胺甲醛树脂相比,混合树脂具有更好的阻燃性和更少的污染。扫描电镜和锥量热分析表明,较低的粘结剂树脂浓度提高了阻燃性,有利于炭层的形成。当黏结树脂浓度增加且CO/CO2排放持续超过300 s时,膨胀涂层的阻燃性与较低黏结树脂浓度时相同。此外,通过傅里叶变换红外光谱和固态核磁共振分析验证了磷碳质结构的化学结构和耐久性。
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来源期刊
Journal of Coatings Technology and Research
Journal of Coatings Technology and Research CHEMISTRY, APPLIED-MATERIALS SCIENCE, COATINGS & FILMS
CiteScore
4.40
自引率
8.70%
发文量
0
期刊介绍: Journal of Coatings Technology and Research (JCTR) is a forum for the exchange of research, experience, knowledge and ideas among those with a professional interest in the science, technology and manufacture of functional, protective and decorative coatings including paints, inks and related coatings and their raw materials, and similar topics.
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