Abstract

Intumescent coatings are a great alternative for passive protection of metal substrates against fire, with binder polymer being one of the main components of an intumescent system. The objective of this work was to compare five different resin types (epoxy, acrylic, alkyd, silicone, and silicone–epoxy hybrid) in an intumescent formulation and to study the influence of resin concentration on the fire protection performance of the coating. Results from TGA and MCC analysis of resins and coatings indicated that coatings containing silicone are thermally stable and release smaller amounts of heat. In the fire resistance test, samples containing epoxy and silicone resins had lower temperatures (130–160°C) compared to the other samples. It has also been found that it is possible to decrease resin concentration in formulations containing epoxy and silicone resins up to 25.6% and to maintain or even improve their fire protection capability.

Graphic abstract

中文翻译：

---

使用环氧，醇酸，丙烯酸，有机硅和有机硅-环氧混合树脂的膨胀型涂料，用于钢结构防火

摘要

膨胀型涂料是被动保护金属基材免于火灾的绝佳选择，而粘合剂聚合物是膨胀型系统的主要成分之一。这项工作的目的是比较膨胀型配方中的五种不同类型的树脂（环氧树脂，丙烯酸，醇酸树脂，有机硅和有机硅-环氧杂化树脂），并研究树脂浓度对涂料防火性能的影响。TGA和MCC对树脂和涂料的分析结果表明，含有硅酮的涂料具有热稳定性，并散发少量热量。在耐火性测试中，与其他样品相比，包含环氧树脂和硅树脂的样品的温度较低（130–160°C）。

图形摘要