钢结构防腐与防火涂装施工之防火涂料的选择
发布时间：2015/11/25 9:57:56 浏览次数:689对钢结构防火涂料的要求主要有:
(1)防火隔热性能优良,耐火极限高;
(2)与防腐蚀面层涂料的层间粘接强度高;
(3)耐候性能好、耐水、耐冻、不起皮、不剥落、耐老化、使用寿命长;
(4)涂料不含对人体有害的物质,无毒、无味,在火灾发生时不产生有毒有害气体;
(5)价格低廉,施工性能好。
在选用防火涂料时,应根据防火设计的内容和施工要求,尽可能地选择满足以上性能要求的防火涂料。某些型号的厚涂型、薄涂型、超薄型钢结构防火涂料主要理化性能如表7所示。
The quality of fire retardant coating is an important factor to affect the fire protection effect. So the choice of paint is very important.
Requirements for steel structure fire retardant coatings are mainly:
(1) the fire insulation performance is excellent, the fire resistance limit is high;
(2) the interlayer bonding strength of the coatings is high;
(3) good weather resistance, water resistance, frost resistance, no peeling, no peeling, aging resistance, long service life;
(4) the paint does not contain harmful substances which are harmful to the human body, and is non-toxic and tasteless;
(5) the price is low and the construction performance is good.
In the selection of fire paint, should be based on the contents and construction requirements of fire prevention design, as far as possible to meet the performance requirements of the fire retardant coating. The main physical and chemical properties of some types of thick, thin and ultra thin steel structure fire retardant coatings are shown in Table 7.
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