摘要：本文从不同无机物填料入手，对水性防火涂料（AIFRC）的膨胀性和环保性的不同探究，用水性丙烯酸乳液作为基料，聚磷酸铵（APP）做脱水催化剂，季戊四醇（PER）做碳化剂，三聚氰胺（MEL）作发泡剂，以不同无机粉体为填料，并添加适量的水。通过TG-DTA、FT-IR、DSC以及锥形量热仪对配制不同防火涂料的表征结果得知，不同无机填料与含量对防火阻燃性能有不同的影响。加入三种无机填料膨胀石墨（EG）、膨胀蛭石、珍珠岩，不同程度改善防火涂料的膨胀性以及抑烟性。实验结果得知，其中仅加入单种填料与TiO2协效阻燃效果最好的组内单组份结果：当膨胀石墨(EG):TiO2=5:3时，该配比在燃烧实验中温度变化为1.5℃/min，同组比较阻燃性最好，同时该组TSR平均80m2/m2。加入膨胀蛭石:TiO2=1:3时，该配比实验温度变化为1.75℃/min，同组比较阻燃性最好，同时该组TSR平均400m2/m2；当珍珠岩:TiO2=1:1时，该配比实验温度变化2℃/min，同组比较阻燃性最好，同时该组TSR平均在350m2/m2。复配实验表明膨胀石墨不仅能提高碳层厚度，还能起到抑制烟气的作用，使涂料的TSR保持在100m2/m2以下。结果得知当TiO2:膨胀石墨（EG）:珍珠岩=1:2:1时，隔热抑烟效果最好，该配比实验温度变化在1.56℃/min，该涂料TSR保持在100m2/m2以下。

关键词：防火涂料膨胀型抑烟性协效作用

Study on Preparation and Performance of an Environmentally Expansive Steel Structure Fire-retardant Coating

Abstract : This article starts with different inorganic fillers and explores the differences in the expansibility and environmental friendliness of water-based fire-retardant coatings (AIFRC). Water-based acrylic emulsions are used as a base material, ammonium polyphosphate (APP) is used as a dehydration catalyst, and pentaerythritol (PER) is used as a carbonization agent. Melamine (MEL) was used as a foaming agent. Different inorganic powders were used as the filler and an appropriate amount of water was added. Through TG-DTA, FT-IR, DSC, and cone calorimeter, the results of characterization of different fire-retardant coatings show that different inorganic fillers and content have different effects on fire-retardant properties. Three types of inorganic fillers, expanded graphite (EG), expanded vermiculite, and perlite were added to improve the expansibility and smoke suppression of the fire retardant coating in different degrees. The experimental results show that the single-component component with the best synergistic flame retardant effect of the single filler and TiO2 is added. Results: When the expanded graphite (EG): TiO2 = 5:3, the ratio in the combustion  test temperature The  change was 1.5°C/min. The flame retardancy of the same group was the best. At the same time, the average TSR of this group  was 80  m2/m2.  When  adding expanded  vermiculite: TiO2=1:3,  the temperature change of the matching experiment is 1.75°C/min. The flame  retardancy of  the same group is the best, and the average TSR of this group is 400 m2/m2; when perlite: TiO2=1:1, the temperature of the matching experiment changes by 2°C/min, and the flame retardancy of the same group is the best. At the same time, the average TSR of this group is 350 m2/m2. Compounding experiments show that expanded graphite can not only increase the thickness of the carbon layer, but also play a role in suppressing the smoke, so that the TSR of the coating is kept below 100 m2/m2. The results showed that when the expanded graphite (EG):perlite: TiO2=1:2:1, the heat insulation and smoke suppression effect was the best. The temperature change of the mixing experiment was 1.56°C/min, and the TSR of the coating was kept at 100 m2/m2 below.

Keywords: Fire-retardant Coating; Intumescent; Smoke Suppression; Synergistic Effect 环保膨胀型钢结构防火涂料的制备与性能研究:http://www.chuibin.com/huaxue/lunwen_205149.html