CN114249590B - 一种高强度耐高温防火隔热材料 - Google Patents

一种高强度耐高温防火隔热材料 Download PDF

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CN114249590B
CN114249590B CN202111573644.6A CN202111573644A CN114249590B CN 114249590 B CN114249590 B CN 114249590B CN 202111573644 A CN202111573644 A CN 202111573644A CN 114249590 B CN114249590 B CN 114249590B
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林胜荣
黄培润
汤雪佳
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Shenzhen Yuanheng High Tech Polymer Material Development Co ltd
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Abstract

本发明提供一种高强度耐高温防火隔热材料,包括甲乙两个未相互混合的甲乙双组份或甲乙双组份以及水三个未相互混合的组份,其中,甲组份为无机液态耐高温防火材料,乙组份为无机粉状耐高温防火材料,其中,乙组份的无机粉状耐高温防火材料包括耐高温改性硅酸盐粉体,和超耐高温防火粉体、隔热降温粉体中的至少一种。形成了最高2300℃超过5小时的加强保护作用,以保护结构材料不受高温产生不可接受的变形影响。

Description

一种高强度耐高温防火隔热材料
技术领域
本发明涉及一种防火隔热材料,尤其涉及一种高强度耐高温防火隔热材料,属于防火材料领域。
背景技术
一般在防火隔热材料,尤其涉及到建筑构件中混凝土加强材料(如钢筋)都追求在1100℃以上高温环境下连续燃烧超过5小时,并且要求在1100℃-1800℃防火材料本身不会分解,使得混凝土加强材料组成的建筑结构在1100℃-1800℃高温范围内5小时以上燃烧环境下不坍塌。
波特兰水泥作为传统的加强材料保护结构,由于硅酸钠、硅酸钙、硅酸镁等硅酸盐类的耐高温性质有效地提供钢结构的防火保护。然而由于硅酸盐化学键(-Si-O-,108kj/mole)在1160℃即产生分解,故以波特兰水泥为主材料的防火材料很难通过5小时以上长时间1100℃的高温燃烧。
考虑传统波特兰水泥基底的防火涂料,以高分子树脂加强波特兰水泥粉和钢结构表面预涂的高分子树脂之间的结合力,会存在因为防火材料在高温燃烧环境中裂缝渗透热而导致高分子树脂的裂解而剥落的问题,从而失去提供钢结构长时间防火保护的功能。高温燃烧环境中的结构裂解,以及防火保护层和钢结构在高温燃烧环境中剥离的缺点对传统波特兰水泥的改进提出了更高的要求。
发明内容
鉴于上述存在的技术问题,本发明提出了一种克服上述问题或者至少部分地解决上述问题的高强度耐高温防火隔热材料。本发明考虑从波特兰水泥本身进行改性,并考虑结合超耐高温材料,尤其是掺杂有一维纳米形状的超耐高温材料,在实现高至1600℃长时间的保护加强材料之外,进一步解决涂砌层的剥离问题。结合气凝胶网布裹层或结构外包,进一步达到特别的要求,如钢结构长期重复防火隔热保护。
本发明提供了一种高强度耐高温防火隔热材料,包括甲乙两个未相互混合的甲乙双组份或甲乙双组份以及水三个未相互混合的组份,其中,甲组份为无机液态耐高温防火材料,乙组份为无机粉状耐高温防火材料,其中,乙组份的无机粉状耐高温防火材料包括耐高温改性硅酸盐粉体,和超耐高温防火粉体、隔热降温粉体中的至少一种。使用时将甲乙双组份或甲乙双组份与水混合拌匀,形成混匀体即可。
优选地,甲组份、水、乙组份的质量比例为0.1-0.4:0-0.4:3.5-5.5,耐高温改性硅酸盐粉体、超耐高温防火粉体和隔热降温粉体的质量比例为:2.8-4.4:0-1.1:0-1.1,且超耐高温防火粉体和隔热降温粉体的质量比例不同时为0。
可选地,所述无机液态耐高温防火材料为液态磷酸二氢铝。
可选地,所述耐高温改性硅酸盐粉体为以SiO2/NaOH计摩尔比8以上的硅酸钠、硅酸镁、硅酸钙中任意一种或其组合。
可选地,所述的超耐高温防火粉体为粉状氧化锆、粉状氮化硼、粉状磷酸铝中任一种或其组合,所述隔热降温粉体为膨胀蛭石粉、珍珠粉中任一种或其组合。
优选地,所述粉状氧化锆、粉状氮化硼分别为掺杂有纳米线和/或纳米管结构的氧化锆、氮化硼一维纳米结构以及其余为纳米颗粒状粉体,更优选地,所述一维纳米结构和纳米颗粒状粉体的质量比为0-0.3:1。所述粉状磷酸铝为纳米颗粒状粉体。
在一个实施例中,所述高强度耐高温防火隔热材料还包括丙组份,所述丙组份为气凝胶网布或气凝胶粉体。
优选地,所述气凝胶为二氧化硅气凝胶,所述气凝胶网布是气凝胶膜或片通过模具压印形成具有多孔网状结构或通过模板法制备形成水凝胶网后在二氧化碳超临界干燥后形成,气凝胶粉体的颗粒直径为0.5-10μm。
由于一维纳米结构的掺杂使得材料的强度和防止龟裂性能获得提升,并且比表面积增大,与多孔网状结构的气凝胶或粉体结合能够进一步加强热阻隔面积分布,进一步提升耐温的强度高的加强材料保护。
本发明还提供一种高强度耐高温防火隔热材料涂层,包括三层体,第一层和第三层通过混匀体形成,第一层与被保护材料表面结合,第二层在第一与第三层之间,由丙组份形成,且第一层和第三层之间具有相互结合的部分。
可选地,形成所述第一层和第三层的混匀体中甲乙双组份中各成分或甲乙双组份中各成分以及水的质量比例相同。
可选地,形成所述第一层和第三层的混匀体中甲乙双组份中各成分或甲乙双组份中各成分以及水的质量比例不同。
优选地,所述涂层包括多个三层体相互结合而形成的叠层。
本发明还提供一种高强度耐高温防火隔热材料涂层的形成方法,被保护材料表面先喷涂或砌涂第一层,然后将第二层设置在第一层表面,最后将第三层喷涂或砌涂于所述第一层以及所述第二层,使得三层之间相互结合形成三层体。
优选地,采用相同的方法形成多个三层体相互结合的叠层。
本发明还提供一种高强度耐高温防火隔热砌块形成方法,在具有上端开口的砌块模具底部、以及侧面内壁形成三层体,再将高强度耐高温防火隔热材料形成的混匀体灌注满模具,凝固成型后脱模。
优选地,所述砌块形成方法还包括在脱模后的砌块表面的至少一部分形成与所述砌块表面的至少一部分相互结合的至少一个三层体的叠层。
本发明还提供了一种高强度耐高温防火隔热砌块,所述砌块由如上述所述的砌块形成方法而形成。
本发明提供的高强度耐高温防火隔热材料具有以下有益效果:
1.采用改性硅酸盐替代波特兰I型水泥为防火材料(如粉状硅酸钠、硅酸镁等),为隔热降温材料(如膨胀蛭石粉、珍珠粉)之间的结合剂,改善了长时间耐热温度,以及结合强度,防止龟裂。
2.采用二氧化硅气凝胶中间层进一步加强了隔热效果。
3.纳米级的隔热降温材料以及二氧化硅气凝胶微粒中间层,增加了热接触面积,增大了阻热面积空间分布。
本发明实施例提供的高强度耐高温防火隔热材料,形成了开放空间最高2100℃超过1小时的保护作用;密闭空间1100℃超过5小时的保护作用,以保护结构材料不受高温产生不可接受的变形影响。本发明因为防火材料能够长时间在1800℃的高温环境不分解,避免了国内目前以传统波特兰1号水泥为主体的防火隔热材料高温燃烧环境中的结构裂解,导致防火保护层和钢结构在高温燃烧环境中剥离的缺点,能够在1100℃的燃烧环境中,5小时的燃烧后不分解。在非膨胀型钢结构防火保护材料的领域,填补了国内目前非膨胀型钢结构防火隔热材料3小时以上保护能力的空白,为国内防火材料的新标竿。
上述说明仅是本发明技术方案的概述,为了能够更清楚了解本发明的技术手段,而可依照说明书的内容予以实施,并且为了让本发明的上述和其它目的、特征和优点能够更明显易懂,以下特举本发明的具体实施方式。
根据下文结合附图对本发明具体实施例的详细描述,本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
通过阅读下文优选实施方式的详细描述,各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的,而并不认为是对本发明的限制。
而且在整个附图中,用相同的参考符号表示相同的部件。在附图中:
图1示出了本发明实施例1的一种高强度耐高温防火隔热材料配方组成;
图2示出了本发明实施例19的加强筋表面保护的三层体结构示意图;
图3为图2中第二层AG的具体组成和结构示意图;
图4示出了本发明实施例高强度耐高温防火隔热砌块形成方法所形成的的砌块的顶部和体内的材料组成结构示意图。
具体实施方式
下面将参照附图更详细地描述本发明的示例性实施例。虽然附图中显示了本发明的示例性实施例,然而应当理解,可以以各种形式实现本发明而不应被这里阐述的实施例所限制。相反,提供这些实施例是为了能够更透彻地理解本发明,并且能够将本发明的范围完整的传达给本领域的技术人员。
本发明实施例提供了一种高强度耐高温防火隔热材料,包括甲乙两个未相互混合的甲乙双组份或甲乙双组份以及水三个未相互混合的组份,其中,甲组份为无机液态耐高温防火材料,乙组份为无机粉状耐高温防火材料,其中,乙组份的无机粉状耐高温防火材料包括耐高温改性硅酸盐粉体,和超耐高温防火粉体、隔热降温粉体中的至少一种。使用时将甲乙双组份或甲乙双组份与水混合拌匀,形成混匀体即可,甲组份、水、乙组份的质量比例优选为0.1-0.4:0-0.4:3.5-5.5。
本实施例中甲组份为无机液态耐高温防火材料,所述无机液态耐高温防火材料优选为液态磷酸二氢铝。
上文介绍,乙组份的无机粉状耐高温防火材料包括耐高温改性硅酸盐粉体,和超耐高温防火粉体、隔热降温粉体中的至少一种。可选地,当乙组份的无机粉状耐高温防火材料包括耐高温改性硅酸盐粉体、超耐高温防火粉体和隔热降温粉体时,乙组份中的耐高温改性硅酸盐粉体、超耐高温防火粉体和隔热降温粉体的质量比例优选为:2.8-4.4:0-1.1:0-1.1,且超耐高温防火粉体和隔热降温粉体的质量比例不同时为0。
其中,耐高温改性硅酸盐粉体可选为以SiO2/NaOH计摩尔比8以上的硅酸钠、硅酸镁、硅酸钙中任意一种或其组合。超耐高温防火粉体可以为粉状氧化锆、粉状氮化硼、粉状磷酸铝中任一种或其组合。优选地,所述粉状氧化锆、粉状氮化硼分别为掺杂有纳米线和/或纳米管结构的氧化锆、氮化硼一维纳米结构以及其余为纳米颗粒状粉体,更优选地,所述一维纳米结构和纳米颗粒状粉体的质量比为0-0.3:1;粉状磷酸铝可选为纳米颗粒状粉体。另外,隔热降温粉体可选为膨胀蛭石粉、珍珠粉中任一种或其组合。本实施例中,所述粉状氧化锆、粉状氮化硼、粉状磷酸铝均为纳米颗粒状粉体。所述粉状氧化锆、粉状氮化硼分别为掺杂有纳米线和/或纳米管结构的氧化锆、氮化硼一维纳米结构以及其余为纳米颗粒状粉体。其中,所述一维纳米结构和纳米颗粒状粉体的质量比优选为0-0.3:1。
在本发明可选实施例中,高强度耐高温防火隔热材料还可以包括丙组份,所述丙组份为气凝胶网布或气凝胶粉体。优选地,所述气凝胶为二氧化硅气凝胶,所述气凝胶网布是气凝胶膜或片通过模具压印形成具有多孔网状结构或通过模板法制备形成水凝胶网后在二氧化碳超临界干燥后形成,气凝胶粉体的颗粒直径为0.5-10μm。由于一维纳米结构的掺杂使得材料的强度和防止龟裂性能获得提升,并且比表面积增大,与多孔网状结构的气凝胶或粉体结合能够进一步加强热阻隔面积分布,进一步提升耐温的强度高的加强材料保护。
本实施例提供的高强度耐高温防火隔热材料,采用改性硅酸盐(如SiO2/NaOH摩尔比8以上的硅酸钠、硅酸钾)作为隔热降温材料(如膨胀蛭石粉、珍珠粉)之间的结合剂,改善了长时间耐热温度以及结合强度,防止龟裂。尤其是掺杂有一维纳米形状的超耐高温材料,在实现高至1600℃长时间的保护加强材料之外,进一步解决涂砌层的剥离问题。结合气凝胶网布裹层或结构外包,进一步达到特别的要求,如钢结构长期重复防火隔热保护。
下面通过多个具体实施例对上述介绍的高强度耐高温防火隔热材料进行详细说明。
实施例1
本实施例具体给出了一种高强度耐高温防火隔热材料,包括液态磷酸二氢铝,ZrO2纳米管掺杂的ZrO2颗粒粉体、硅酸镁、水,质量比例如图1所示分别为0.4:1.3(其中ZrO2纳米管:ZrO2颗粒粉体=0.3:1质量比):3.9:0.4。
实施例2
本实施例具体给出了一种高强度耐高温防火隔热材料,包括液态磷酸二氢铝、ZrO2纳米管掺杂的ZrO2颗粒粉体、硅酸镁,质量比分别为0.8:1.3(其中ZrO2纳米管:ZrO2颗粒粉体=0.3:1质量比):3.9。
实施例3
本实施例具体给出了一种高强度耐高温防火隔热材料,包括液态磷酸二氢铝、ZrO2纳米管掺杂的ZrO2颗粒粉体、1:1质量比硅酸镁和硅酸钙、水,质量比分别为0.4:1.3(其中ZrO2纳米管:ZrO2颗粒粉体=0.3:1质量比):3.9:0.4。
实施例4
本实施例具体给出了一种高强度耐高温防火隔热材料,包括液态磷酸二氢铝、ZrO2纳米管掺杂的ZrO2颗粒粉体、1:1质量比的硅酸镁和硅酸钙,质量比分别为0.8:1.3(其中ZrO2纳米管:ZrO2颗粒粉体=0.3:1质量比):3.9:0.4。
实施例5
本实施例具体给出了一种高强度耐高温防火隔热材料,包括液态磷酸二氢铝、BN纳米线掺杂的BN粉体、硅酸镁、水,质量比分别为0.4:1.3(其中BN纳米线:掺杂的BN粉体=0.3:1质量比):3.9:0.4。
实施例6
本实施例具体给出了一种高强度耐高温防火隔热材料,包括液态磷酸二氢铝、BN纳米线掺杂的BN粉体、硅酸镁,质量比分别为0.8:1.3(其中BN纳米线:掺杂的BN粉体=0.3:1质量比):3.9。
实施例7
本实施例具体给出了一种高强度耐高温防火隔热材料,包括液态磷酸二氢铝、BN纳米线掺杂的BN粉体、1:1质量比的硅酸镁和硅酸钙、水,质量比分别为0.4:1.3(其中BN纳米线:掺杂的BN粉体=0.3:1质量比):3.9:0.4。
实施例8
本实施例具体给出了一种高强度耐高温防火隔热材料,包括液态磷酸二氢铝、BN纳米线掺杂的BN粉体、1:1质量比的改性硅酸镁和硅酸钙,质量比分别为0.8:1.3(其中BN纳米线:掺杂的BN粉体=0.3:1质量比):3.9。
实施例9
本实施例具体给出了一种高强度耐高温防火隔热材料,包括液态磷酸二氢铝、ZrO2或BN或磷酸铝纳米颗粒、硅酸镁、水,质量比分别为0.4:1.3:3.9:0.4。
实施例10
本实施例具体给出了一种高强度耐高温防火隔热材料,包括液态磷酸二氢铝、ZrO2或BN或磷酸铝纳米颗粒、硅酸镁,质量比例如图1所示分别为0.8:1.3:3.9。
实施例11
本实施例具体给出了一种高强度耐高温防火隔热材料,包括液态磷酸二氢铝、ZrO2或BN或磷酸铝纳米颗粒、1:1质量比的改性硅酸镁和硅酸钙、水,质量比例如图1所示分别为0.4:1.3:3.9:0.4。
实施例12
本实施例具体给出了一种高强度耐高温防火隔热材料,包括液态磷酸二氢铝、ZrO2或BN或磷酸铝纳米颗粒、1:1质量比的改性硅酸镁和硅酸钙(SiO2/NaOH计摩尔比都为8),质量比例如图1所示分别为0.8:1.3:3.9。
实施例13
本实施例具体给出了一种高强度耐高温防火隔热材料,包括液态磷酸二氢铝、ZrO2纳米管掺杂的ZrO2颗粒粉体、1:1:1质量比的改性硅酸钠、硅酸镁、硅酸钙(SiO2/NaOH计摩尔比都为8)、水,质量比分别为0.4:1.3(其中ZrO2纳米管:ZrO2颗粒粉体=0.3:1质量比):3.9:0.4。
实施例14
本实施例具体给出了一种高强度耐高温防火隔热材料,包括液态磷酸二氢铝、ZrO2纳米管掺杂的ZrO2颗粒粉体、1:1:1质量比的改性硅酸钠、硅酸镁、硅酸钙(SiO2/NaOH计摩尔比都为8),质量比分别为0.8:1.3(其中ZrO2纳米管:ZrO2颗粒粉体=0.3:1质量比):3.9。
实施例15
本实施例具体给出了一种高强度耐高温防火隔热材料,包括液态磷酸二氢铝、ZrO2纳米管掺杂的ZrO2颗粒粉体、1:1:1质量比的改性硅酸钠、硅酸镁、硅酸钙(SiO2/NaOH计摩尔比都为8)、水,质量比分别为0.4:1.3(其中ZrO2纳米管:ZrO2颗粒粉体=0.3:1质量比):3.9:0.4。
实施例16
本实施例具体给出了一种高强度耐高温防火隔热材料,包括液态磷酸二氢铝、ZrO2纳米管掺杂的ZrO2颗粒粉体、1:1:1质量比的改性硅酸钠、硅酸镁、硅酸钙(SiO2/NaOH计摩尔比都为8),质量比分别为0.8:1.3(其中ZrO2纳米管:ZrO2颗粒粉体=0.3:1质量比):3.9。
实施例17
本实施例给出的一种高强度耐高温防火隔热材料包括了实施例1-16中的每一例,其中的粉状氧化锆、氮化硼、磷酸铝中额外还包括膨胀蛭石粉、珍珠粉中任一种或两者质量比4:1-1:4的组合,整体组成比例仍然为1.3。
本发明可选实施例还提供了一种高强度耐高温防火隔热材料形成的混匀体,其中,高强度耐高温防火隔热材料为上述实施例提及的包括甲乙两个未相互混合的甲乙双组份或甲乙双组份以及水三个未相互混合的组份的材料。可选地,混匀体形成过程可以如下:
S1,若高强度耐高温防火隔热材料组成中有水,则先将水倒入盛有液态磷酸二氢铝的容器中,搅拌0.5-1min,若无水,则直接进入S2;
S2,对所述容器中的物质搅拌同时加入乙组份中的粉状氧化锆或粉状氮化硼或粉状磷酸铝,经过5-10min混匀;
S3,将S2混匀的物质搅拌同时加入耐高温改性硅酸盐粉体,经过10-20min混匀,形成混匀体。
本实施例中,在步骤S1-S3中至少一个步骤中搅拌同时对所述容器或所述容器中的盛有的物质进行超声震荡处理,以实现清洁效果。实施例18是高强度耐高温防火隔热材料的混匀体的可选实施方式。
实施例18
本实施例将实施例1-17的高强度耐高温防火隔热材料的成分混匀,具体是:
S1若材料组成中有水,则先将水倒入盛有液态磷酸二氢铝的容器中,搅拌0.5-1min,若无水,则直接进入S2;
S2对所述容器中的物质搅拌同时加入乙组份中的粉状氧化锆或粉状氮化硼或粉状磷酸铝,经过5-10min混匀;
S3将S2混匀的物质搅拌同时加入耐高温改性硅酸盐粉体,经过10-20min混匀,形成混匀体。
优选地,在步骤S1-S3中至少一个步骤中搅拌同时对所述容器或所述容器中的盛有的物质进行超声震荡处理。
本发明可选实施例还提供了一种高强度耐高温防火隔热材料涂层,包括三层体,第一层和第三层通过上述实施例所述的混匀体形成,第一层与被保护材料表面结合,第二层在第一与第三层之间由前文记载的高强度耐高温防火隔热材料中的丙组份形成,且第一层和第三层之间具有相互结合的部分。可选地,形成所述第一层和第三层的混匀体中甲乙双组份中各成分或甲乙双组份中各成分以及水的质量比例相同或者不同。另外,所述涂层包括多个所述三层体相互结合而形成的叠层。如上述实施例提及,丙组份为气凝胶网布或气凝胶粉体,优选地,所述气凝胶为二氧化硅气凝胶,本实施例提供的高强度耐高温防火隔热材料涂层通过采用二氧化硅气凝胶形成中间层,进一步加强了高强度耐高温防火隔热材料涂层的隔热效果。
本实施例还提供了上述的高强度耐高温防火隔热材料涂层的形成方法,包括,在被保护材料表面先喷涂或砌涂所述第一层,然后将所述第二层设置在所述第一层表面,最后将所述第三层喷涂或砌涂于所述第一层以及所述第二层,使得三层之间相互结合形成三层体。本实施例提供的高强度耐高温防火隔热材料涂层的形成方法可以形成多个三层体相互结合的叠层,其实施方式可以参见以下实施例19。
实施例19
如图2所示,本实施例为在加强筋表面施加三层体的实施例。第一层为实施例18的混匀体喷涂或砌涂到H型钢表面,再将如图3所示的SiO2气凝胶网布和/或SiO2气凝胶微粒片层(由SiO2气凝胶微粒与粘接剂形成,粒径
Figure BDA0003424122880000102
)AG设置在第一层表面,留出层边缘供第三层以第一层结合的余地,最后将实施例18的混匀体喷涂或砌涂到AG层以及所述余地的表面,形成三层体。其隔热耐火与传统的波特兰水泥比较如表1。具体试验时在万能试验机夹头和底座上铺设三层体,并将表面喷涂或砌涂加强筋试件放置于三层体上,施加0.1-11t压力,等压力稳定之后使用氢氧火焰枪对准预设H型钢表面位置喷焰,并使用红外测温仪实时探测表面温度,以控制喷枪对加强筋表面加热温度(通过火焰离开表面的距离来控制)
表1三层体保护加强筋的耐高温试验比较结果
Figure BDA0003424122880000101
本发明可选实施例还提供了一种高强度耐高温防火隔热砌块形成方法,在具有上端开口的砌块模具底部、以及侧面内壁形成如上述实施例记载的高强度耐高温防火隔热材料涂层的三层体,再将上述的高强度耐高温防火隔热材料形成的混匀体灌注满模具,凝固成型后脱模。可选地,还可以在脱模后的砌块表面的至少一部分形成与所述砌块表面的至少一部分相互结合的至少一个上述实施例记载的高强度耐高温防火隔热材料涂层三层体的叠层。通过本实施例提供的高强度耐高温防火隔热砌块,同时,纳米级的隔热降温材料以及二氧化硅气凝胶微粒中间层,增加了热接触面积,增大了阻热面积空间分布,进一步加强了隔热效果。实施例20记载了高强度耐高温防火隔热砌块形成的可选实现方式。
实施例20
本实施例给出了如图4所示的高强度耐高温防火隔热砌块形成方法,在具有上端开口的砌块模具底部、以及侧面内壁形成实施例1的一个三层体,再将实施例1的高强度耐高温防火隔热材料灌注满模具,凝固成型后脱模。如图4示意了顶面和体内材料的组成,表面为如图2的三层体,体内成分则为第一层或第三层材料。
本发明实施例还提供了一种高强度耐高温防火隔热砌块,所述砌块由如上述实施例所述的砌块形成方法而形成。
最后应说明的是:以上各实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述各实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:在本发明的精神和原则之内,其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案脱离本发明的保护范围。

Claims (15)

1.一种高强度耐高温防火隔热材料涂层,其特征在于,包括三层体,第一层和第三层通过高强度耐高温防火隔热材料的混匀体形成,第一层与被保护材料表面结合,第二层在第一与第三层之间由丙组份形成,且第一层和第三层之间具有相互结合的部分;
所述高强度耐高温防火隔热材料包括甲乙两个未相互混合的甲乙双组份或甲乙双组份以及水三个未相互混合的组份,其中,甲组份为无机液态耐高温防火材料,乙组份为无机粉状耐高温防火材料,其中,乙组份的无机粉状耐高温防火材料包括耐高温改性硅酸盐粉体和超耐高温防火粉体;
甲组份、水、乙组份的质量比例为0.1-0.4:0-0.4:3.5-5.5;
所述的超耐高温防火粉体为粉状氧化锆、粉状氮化硼、粉状磷酸铝中任一种或其组合;所述粉状氧化锆、粉状氮化硼分别为掺杂有纳米线和/或纳米管结构的氧化锆、氮化硼一维纳米结构以及其余为纳米颗粒状粉体;所述粉状磷酸铝为纳米颗粒状粉体;所述耐高温改性硅酸盐粉体为硅酸钠、硅酸镁、硅酸钙中任意一种或其组合;所述硅酸钠、硅酸镁、硅酸钙,均以SiO2/NaOH计摩尔比8以上;
所述丙组份为气凝胶网布或气凝胶粉体。
2.根据权利要求1所述的涂层,其特征在于,所述无机液态耐高温防火材料为液态磷酸二氢铝。
3.根据权利要求1所述的涂层,其特征在于,所述粉状氧化锆、粉状氮化硼、粉状磷酸铝均为纳米颗粒状粉体。
4.根据权利要求1所述的涂层,其特征在于,所述气凝胶为二氧化硅气凝胶,所述气凝胶网布是气凝胶膜或片通过模具压印形成具有多孔网状结构或通过模板法制备形成水凝胶网后在二氧化碳超临界干燥后形成,气凝胶粉体的颗粒直径为0.5-10μm。
5.根据权利要求1所述的涂层,其特征在于,所述混匀体形成过程如下:
S1若高强度耐高温防火隔热材料组成中有水,则先将水倒入盛有液态磷酸二氢铝的容器中,搅拌0.5-1min,若无水,则直接进入S2;
S2对所述容器中的物质搅拌同时加入乙组份中的粉状氧化锆或粉状氮化硼或粉状磷酸铝,经过5-10min混匀;
S3将S2混匀的物质搅拌同时加入耐高温改性硅酸盐粉体,经过10-20min混匀,形成混匀体。
6.根据权利要求5所述的涂层,其特征在于,在步骤S1-S3中至少一个步骤中搅拌同时对所述容器或所述容器中的盛有的物质进行超声震荡处理。
7.根据权利要求1所述的涂层,其特征在于,形成所述第一层和第三层的混匀体中甲乙双组份中各成分或甲乙双组份中各成分以及水的质量比例相同。
8.根据权利要求1所述的涂层,其特征在于,形成所述第一层和第三层的混匀体中甲乙双组份中各成分或甲乙双组份中各成分以及水的质量比例不同。
9.根据权利要求1-8中任一项所述的涂层,其特征在于,所述涂层包括多个所述三层体相互结合而形成的叠层。
10.根据权利要求1-8中任一项所述的涂层,其特征在于,所述乙组份的无机粉状耐高温防火材料还包括隔热降温粉体;所述隔热降温粉体为膨胀蛭石粉、珍珠粉中任一种或其组合。
11.一种如权利要求1-10任一项中所述的高强度耐高温防火隔热材料涂层的形成方法,其特征在于,在被保护材料表面先喷涂或砌涂所述第一层,然后将所述第二层设置在所述第一层表面,最后将所述第三层喷涂或砌涂于所述第一层以及所述第二层,使得三层之间相互结合形成三层体。
12.根据权利要求11所述的形成方法,其特征在于,采用根据权利要求11所述的形成方法形成多个三层体相互结合的叠层。
13.一种高强度耐高温防火隔热砌块形成方法,其特征在于,在具有上端开口的砌块模具底部、以及侧面内壁形成如权利要求1-10任一项中所述的三层体,再将所述高强度耐高温防火隔热材料形成的混匀体灌注满模具,凝固成型后脱模。
14.根据权利要求13所述的砌块形成方法,其特征在于,在脱模后的砌块表面的至少一部分形成与所述砌块表面的至少一部分相互结合的至少一个如权利要求1-10任一项中所述的三层体的叠层。
15.一种高强度耐高温防火隔热砌块,其特征在于,所述砌块由如权利要求13或14所述的砌块形成方法而形成。
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