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CN103172345B - Light refractory sound-insulation insulation board and preparation method thereof - Google Patents

Light refractory sound-insulation insulation board and preparation method thereof Download PDF

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CN103172345B
CN103172345B CN201310086380.0A CN201310086380A CN103172345B CN 103172345 B CN103172345 B CN 103172345B CN 201310086380 A CN201310086380 A CN 201310086380A CN 103172345 B CN103172345 B CN 103172345B
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insulation board
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insulation
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CN103172345A (en
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吴秀文
李占兵
郑志远
尹兆钰
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China University of Geosciences Beijing
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Abstract

The invention provides a light refractory sound-insulation insulation board which consists of the following raw materials according to mass ratio: expanded perlite, coal ash and solution of aluminium dihydrogen phosphate according to a ratio of 17-19:1-3:18-22. The insulation board is prepared by the following steps: mixing, charging, pressing and demolding the raw materials to obtain an initial sample, drying and roasting the initial sample, coating an organic silicon water repellent on the surface and performing secondary drying to obtain the final product. The insulation board has the advantages of light volume-weight, good thermal insulation effect and good flame retardant property, and the fireproof level reaches the national level-A standard.

Description

一种轻质耐火隔声保温板及其制备方法A light-weight fire-resistant sound-insulation insulation board and its preparation method

技术领域technical field

本发明涉及一种新型建筑保温板及其制备方法,特别是一种以膨胀珍珠岩为主要原料制备的具有耐火隔音效果的建筑外墙保温板及其制备方法。The invention relates to a novel building thermal insulation board and a preparation method thereof, in particular to a building exterior wall thermal insulation board with fire-resistant and sound-insulating effects prepared from expanded perlite and a preparation method thereof.

背景技术Background technique

近些年随着全球经济的发展,全球可再生资源被开采将尽,全球倡导环保节能,而建筑节能也成为很重要的一部分。前些年,建筑节能主要通过提高空调、暖通等设备的利用率来实现,但是现在设备能源利用率已达到瓶颈。近些年,利用膨胀聚苯板(EPS)、挤塑聚苯板(XPS)和聚氨酯硬质泡沫等有机保温材料作为外墙保温材料达到了节能的目的,但有机保温材料易燃,许多建筑由于外墙保温材料发生火灾,造成巨大损失。膨胀珍珠岩具有重量轻、无毒害、隔热、隔声性能好、抗蚀、不燃、耐药物等优良的物理化学特性以及使用成本低廉的特点,因此被广泛用于建筑保温材料。但膨胀珍珠岩容重轻,经合成得到的样品强度较低,严重影响建筑物安全使用;膨胀珍珠岩为亲水性物质,极易吸水,导致导热系数迅速增大,不利于保温节能。In recent years, with the development of the global economy, the exploitation of renewable resources in the world will be exhausted. The world advocates environmental protection and energy conservation, and building energy conservation has also become a very important part. In the past few years, building energy conservation was mainly achieved by increasing the utilization rate of air conditioning, HVAC and other equipment, but now the energy utilization rate of equipment has reached a bottleneck. In recent years, organic insulation materials such as expanded polystyrene board (EPS), extruded polystyrene board (XPS) and polyurethane rigid foam have been used as external wall insulation materials to achieve the purpose of energy saving, but organic insulation materials are flammable, and many buildings Huge losses were caused by the fire of the external wall insulation material. Expanded perlite has excellent physical and chemical properties such as light weight, non-toxicity, heat insulation, sound insulation, corrosion resistance, non-combustibility, drug resistance, and low cost of use, so it is widely used in building insulation materials. However, the bulk density of expanded perlite is light, and the strength of the synthesized sample is low, which seriously affects the safe use of buildings; expanded perlite is a hydrophilic substance, which is easy to absorb water, resulting in a rapid increase in thermal conductivity, which is not conducive to heat preservation and energy saving.

发明内容Contents of the invention

本发明的主要目的是提供一种轻质耐火隔声保温板及其制备方法,以解决现有技术中存在的问题。本发明的这种保温板容重轻,阻燃、保温性能好。The main purpose of the present invention is to provide a light-weight refractory sound insulation board and its preparation method to solve the problems existing in the prior art. The thermal insulation board of the present invention has light bulk density, good flame retardancy and thermal insulation performance.

为了实现上述目的,本发明采用以下技术方案:In order to achieve the above object, the present invention adopts the following technical solutions:

一种轻质耐火隔声保温板,这种保温板由以下原料按照下述质量比组成的:膨胀珍珠岩:粉煤灰:磷酸二氢铝溶液=17~19:1~3:18~22;所述保温板经原料混合、装模、压制和脱模得到初始样品,初始样品再经干燥、焙烧、表面涂敷有机硅憎水剂和二次干燥得到最终产品。A light-weight refractory and sound-insulating insulation board, which is composed of the following raw materials according to the following mass ratio: expanded perlite: fly ash: aluminum dihydrogen phosphate solution=17~19:1~3:18~22 The insulation board is mixed with raw materials, molded, pressed and demolded to obtain an initial sample, and the initial sample is then dried, roasted, coated with a silicone water-repellent agent and secondary dried to obtain the final product.

一种轻质耐火隔声保温板的制备方法,其包括如下制备步骤:A kind of preparation method of light-weight refractory sound insulation insulation board, it comprises following preparation steps:

(1)混合:将膨胀珍珠岩、粉煤灰和磷酸二氢铝溶液按照膨胀珍珠岩:粉煤灰:磷酸二氢铝溶液=17~19:1~3:18~22的质量比混合均匀;(1) Mixing: Mix expanded perlite, fly ash and aluminum dihydrogen phosphate solution according to the mass ratio of expanded perlite: fly ash: aluminum dihydrogen phosphate solution = 17~19:1~3:18~22 ;

(2)成型:将混合好的原料装入模具,按体积压缩比为2:1进行压制,达到压缩比后,静置保压30~50s,脱模得到第一成品;(2) Molding: Put the mixed raw materials into the mold, and press according to the volume compression ratio of 2:1. After reaching the compression ratio, let it stand for 30-50 seconds and demould to obtain the first finished product;

(3)将第一成品在100~120℃条件下,干燥1~2h后放入马弗炉,在500~550℃的条件下保温1~1.5h,待到马弗炉冷却至100℃时取出得到第二成品;(3) Dry the first finished product at 100-120°C for 1-2 hours, put it into the muffle furnace, keep it warm at 500-550°C for 1-1.5 hours, and wait until the muffle furnace cools down to 100°C Take out to get the second finished product;

(4)在第二成品的表面涂敷有机硅憎水剂涂层得到第三成品;(4) Coating a silicone water-repellent coating on the surface of the second finished product to obtain the third finished product;

(5)将第三成品在30~50℃的干燥箱中干燥24~36h得到最终成品。(5) Dry the third product in a drying oven at 30-50°C for 24-36 hours to obtain the final product.

优选的是,所述步骤(1)的具体操作方法为:先将膨胀珍珠岩和粉煤灰按照上述质量比放入容器中,在摇晃容器的同时向容器中缓慢加入磷酸二氢铝溶液,搅拌摇晃至原料混合均匀。Preferably, the specific operation method of the step (1) is: first put the expanded perlite and fly ash into the container according to the above mass ratio, slowly add the aluminum dihydrogen phosphate solution into the container while shaking the container, Stir and shake until the ingredients are evenly combined.

优选的是,所述搅拌摇晃的时间为20min。Preferably, the stirring and shaking time is 20 minutes.

优选的是,所述磷酸二氢铝溶液的质量浓度为30%。Preferably, the mass concentration of the aluminum dihydrogen phosphate solution is 30%.

优选的是,所述憎水剂为有机硅憎水剂。Preferably, the water repellent is silicone water repellent.

优选的是,所述有机硅憎水剂的质量浓度为5.7%。Preferably, the mass concentration of the organosilicon water repellent is 5.7%.

优选的是,涂敷在所述初始样品表面的有机硅憎水剂涂层的厚度为0.5~2mm。Preferably, the thickness of the organic silicon water-repellent coating applied on the surface of the initial sample is 0.5-2 mm.

本发明的有益效果为:The beneficial effects of the present invention are:

制备工艺简单,操作方便,对操作者的要求较低,能够节省人力成本;所制备的成品性能优异,不仅容重轻,保温效果好,而且还具有很好的阻燃性能,防火等级达到国家A级标准,解决了现有技术中的有机保温材料易燃的问题。The preparation process is simple, the operation is convenient, the requirements for the operator are low, and the labor cost can be saved; the finished product has excellent performance, not only light bulk density, good heat preservation effect, but also has good flame retardancy, and the fire protection level reaches the national A Grade standard, which solves the problem of flammability of organic heat preservation materials in the prior art.

附图说明Description of drawings

图1为本发明的工艺流程图。Fig. 1 is a process flow diagram of the present invention.

具体实施方式Detailed ways

轻质耐火隔声保温板,这种保温板由以下原料按照下述质量比组成的:膨胀珍珠岩:粉煤灰:磷酸二氢铝溶液=17~19:1~3:18~22。所用膨胀珍珠岩为北京南福庆珍珠岩厂提供,容重为93kg/m3,导热系数为0.055W/(m K);所用磷酸二氢铝溶液是由磷酸二氢铝粉末和水按3:7的质量比混合配制而成;所用粉煤灰为新疆某电厂提供;有机硅防水剂为北京盛和通建筑材料有限责任公司提供。膨胀珍珠岩和粉煤灰的化学成分分析结果(wB%)如表1所示。Lightweight refractory and sound insulation insulation board, this insulation board is composed of the following raw materials according to the following mass ratio: expanded perlite: fly ash: aluminum dihydrogen phosphate solution=17~19:1~3:18~22. The expanded perlite used is provided by Beijing Nanfuqing Perlite Factory, with a bulk density of 93kg/m 3 and a thermal conductivity of 0.055W/(m K); the aluminum dihydrogen phosphate solution used is made of aluminum dihydrogen phosphate powder and water by 3: The mass ratio is 7; the fly ash used is provided by a power plant in Xinjiang; the silicone waterproofing agent is provided by Beijing Shenghetong Building Materials Co., Ltd. The chemical composition analysis results (w B %) of expanded perlite and fly ash are shown in Table 1.

表1Table 1

实施例1:Example 1:

轻质耐火隔声保温板,这种保温板的原料包括:膨胀珍珠岩6.500g,粉煤灰0.342g,磷酸二氢铝溶液6.842g。Lightweight refractory sound insulation insulation board, the raw materials of this insulation board include: expanded perlite 6.500g, fly ash 0.342g, aluminum dihydrogen phosphate solution 6.842g.

如图1所示,所述保温板的具体的制备方法如下:As shown in Figure 1, the concrete preparation method of described insulation board is as follows:

(1)先将6.500g膨胀珍珠岩和0.342g粉煤灰放入容器中,在摇晃容器的同时向容器中缓慢加入质量浓度为30%的磷酸二氢铝溶液6.842g,搅拌摇晃20min,使各原料混合均匀;(1) First put 6.500g of expanded perlite and 0.342g of fly ash into the container, slowly add 6.842g of aluminum dihydrogen phosphate solution with a mass concentration of 30% into the container while shaking the container, stir and shake for 20 minutes, so that All raw materials are mixed evenly;

(2)将混合好的原料放入模具中,按体积压缩比2:1进行压制,制成Φ50mm的圆形坯体;(2) Put the mixed raw materials into the mold, press according to the volume compression ratio of 2:1, and make a circular green body of Φ50mm;

(3)将(2)中得到的圆形坯体,先放入干燥箱中,在110℃条件下干燥1h,然后再放入马弗炉中,在500℃条件下,焙烧1h,待到马弗炉冷却至100℃时取出;(3) Put the round green body obtained in (2) into a drying oven, and dry it at 110°C for 1 hour, then put it into a muffle furnace, and bake it at 500°C for 1 hour. Take it out when the muffle furnace is cooled to 100°C;

(4)在步骤(3)处理完的样品表面涂敷有机硅憎水剂涂层,所述涂层的厚度为0.5mm,然后放入干燥箱中,在50℃条件下,干燥24h得到最终的成品。(4) Coat the surface of the sample treated in step (3) with a silicone water repellent coating, the thickness of the coating is 0.5mm, and then put it in a drying oven, and dry it for 24 hours at 50°C to obtain the final finished product.

实施例2:Example 2:

轻质耐火隔声保温板,这种保温板的原料包括:膨胀珍珠岩6.500g,粉煤灰0.722g,磷酸二氢铝溶液7.222g。Lightweight refractory sound insulation insulation board, the raw materials of this insulation board include: expanded perlite 6.500g, fly ash 0.722g, aluminum dihydrogen phosphate solution 7.222g.

所述保温板的具体的制备方法如下:The concrete preparation method of described insulation board is as follows:

(1)先将6.500g膨胀珍珠岩和0.722g粉煤灰放入容器中,在摇晃容器的同时向容器中缓慢加入质量浓度为30%的磷酸二氢铝溶液7.222g,搅拌摇晃20min,使各原料混合均匀;(1) First put 6.500g of expanded perlite and 0.722g of fly ash into the container, slowly add 7.222g of aluminum dihydrogen phosphate solution with a mass concentration of 30% into the container while shaking the container, stir and shake for 20min, so that All raw materials are mixed evenly;

(2)将混合好的原料放入模具中,按压缩比2:1进行压制,制成Φ50mm的圆形坯体;(2) Put the mixed raw materials into the mold, press according to the compression ratio of 2:1, and make a round green body of Φ50mm;

(3)将(2)中得到的圆形坯体,先放入干燥箱中,在110℃条件下干燥1h,然后再放入马弗炉中,在500℃条件下,焙烧1h,待到马弗炉冷却至100℃时取出;(3) Put the round green body obtained in (2) into a drying oven, and dry it at 110°C for 1 hour, then put it into a muffle furnace, and bake it at 500°C for 1 hour. Take it out when the muffle furnace is cooled to 100°C;

(4)在步骤(3)处理完的样品表面涂敷有机硅憎水剂涂层,所述涂层的厚度为1mm,然后放入干燥箱中,在50℃条件下,干燥24h得到最终的成品。(4) Coat the surface of the sample treated in step (3) with a silicone water-repellent coating, the thickness of which is 1mm, and then put it in a drying oven, and dry it for 24 hours at 50°C to obtain the final finished product.

实施例3:Example 3:

轻质耐火隔声保温板,这种保温板的原料包括:膨胀珍珠岩6.500g,粉煤灰1.147g,磷酸二氢铝溶液7.647g。Lightweight refractory sound insulation insulation board, the raw materials of this insulation board include: expanded perlite 6.500g, fly ash 1.147g, aluminum dihydrogen phosphate solution 7.647g.

所述保温板的具体的制备方法如下:The concrete preparation method of described insulation board is as follows:

(1)先将6.500g膨胀珍珠岩和1.147g粉煤灰放入容器中,在摇晃容器的同时向容器中缓慢加入质量浓度为30%的磷酸二氢铝溶液7.647g,搅拌摇晃20min,使各原料混合均匀;(1) First put 6.500g of expanded perlite and 1.147g of fly ash into the container, slowly add 7.647g of aluminum dihydrogen phosphate solution with a mass concentration of 30% into the container while shaking the container, stir and shake for 20 minutes, so that All raw materials are mixed evenly;

(2)将混合好的原料放入模具中,按压缩比2:1进行压制,制成Φ50mm的圆形坯体;(2) Put the mixed raw materials into the mold, press according to the compression ratio of 2:1, and make a round green body of Φ50mm;

(3)将(2)中得到的圆形坯体,先放入干燥箱中,在110℃条件下干燥1h,然后再放入马弗炉中,在500℃条件下,焙烧1h,待到马弗炉冷却至100℃时取出;(3) Put the round green body obtained in (2) into a drying oven, and dry it at 110°C for 1 hour, then put it into a muffle furnace, and bake it at 500°C for 1 hour. Take it out when the muffle furnace is cooled to 100°C;

(4)在步骤(3)处理完的样品表面涂敷有机硅憎水剂涂层,所述涂层的厚度为2mm,然后放入干燥箱中,在50℃条件下,干燥24h得到最终的成品。(4) Coat the surface of the sample treated in step (3) with a silicone water-repellent coating, the thickness of which is 2mm, and then put it in a drying oven, and dry it for 24 hours at 50°C to obtain the final finished product.

对本发明成品进行体积密度、导热系数、吸声系数、吸水率和抗压强度测试。The finished product of the present invention is tested for bulk density, thermal conductivity, sound absorption coefficient, water absorption and compressive strength.

实施例1-3所制备的产品性能与膨胀珍珠岩绝热制品国家标准(GB/T10303-2001)350号合格品的技术指标的对比如表2所示:The comparison of the performance of the product prepared in Examples 1-3 and the technical index of No. 350 qualified product of the expanded perlite thermal insulation product national standard (GB/T10303-2001) is shown in Table 2:

表2Table 2

注:GB-350:膨胀珍珠岩绝热制品国家标准(GB/T10303-2001)350号合格品的技术指标;JC430-91-PB:普通膨胀珍珠岩装饰吸声板国家标准的技术指标;JC430-91-FB:防潮膨胀珍珠岩装饰吸声板国家标准的技术指标。Note: GB-350: The technical index of the national standard for expanded perlite thermal insulation products (GB/T10303-2001) No. 350 qualified products; JC430-91-PB: The technical index of the national standard for ordinary expanded perlite decorative sound-absorbing panels; JC430- 91-FB: The technical index of the national standard for moisture-proof expanded perlite decorative sound-absorbing panels.

由表2可知,本发明保温板,完全达到了膨胀珍珠岩绝热制品国家标准(GB/T10303-2001)350号合格品的技术指标的要求,而且防火等级很高,达到了A级标准。It can be seen from Table 2 that the thermal insulation board of the present invention fully meets the technical index requirements of the national standard (GB/T10303-2001) No. 350 qualified products for expanded perlite thermal insulation products, and the fire protection grade is very high, reaching the A-level standard.

Claims (7)

1.一种轻质耐火隔声保温板的制备方法,其特征在于,其包括如下制备步骤:1. a preparation method of light-weight fire-resistant sound-insulation insulation board, is characterized in that, it comprises following preparation steps: (1)混合:将膨胀珍珠岩、粉煤灰和磷酸二氢铝溶液按照膨胀珍珠岩:粉煤灰:磷酸二氢铝溶液=17~19:1~3:18~22的质量比混合均匀;(1) Mixing: Mix expanded perlite, fly ash and aluminum dihydrogen phosphate solution according to the mass ratio of expanded perlite: fly ash: aluminum dihydrogen phosphate solution = 17~19:1~3:18~22 ; (2)成型:将混合好的原料装入模具,按体积压缩比为2:1进行压制,达到压缩比后,静置保压30~50s,脱模得到第一成品;(2) Molding: Put the mixed raw materials into the mold, and press according to the volume compression ratio of 2:1. After reaching the compression ratio, let it stand for 30-50 seconds, and demould to obtain the first finished product; (3)将第一成品在100~120℃条件下,干燥1~2h后放入马弗炉,在500~550℃的条件下保温1~1.5h,待到马弗炉冷却至100℃时取出得到第二成品;(3) Dry the first finished product at 100-120°C for 1-2 hours, put it into the muffle furnace, keep it warm at 500-550°C for 1-1.5 hours, and wait until the muffle furnace cools to 100°C Take out to get the second finished product; (4)在第二成品的表面涂敷有机硅憎水剂涂层得到第三成品;(4) coating the surface of the second finished product with an organic silicon water-repellent coating to obtain the third finished product; (5)将第三成品在30~50℃的干燥箱中干燥24~36h得到最终成品。(5) drying the third product in a drying oven at 30-50° C. for 24-36 hours to obtain the final product. 2.根据权利要求1所述的轻质耐火隔声保温板的制备方法,其特征在于,所述步骤(1)的具体操作方法为:先将膨胀珍珠岩和粉煤灰按照上述质量比放入容器中,在摇晃容器的同时向容器中缓慢加入磷酸二氢铝溶液,搅拌摇晃至原料混合均匀。2. the preparation method of light-weight refractory sound insulation insulation board according to claim 1 is characterized in that, the specific operation method of described step (1) is: first put expanded perlite and fly ash according to above-mentioned mass ratio Put it into the container, slowly add the aluminum dihydrogen phosphate solution into the container while shaking the container, stir and shake until the raw materials are evenly mixed. 3.根据权利要求2所述的轻质耐火隔声保温板的制备方法,其特征在于,所述搅拌摇晃的时间为20min。3. The preparation method of light-weight fire-resistant and sound-insulating insulation board according to claim 2, characterized in that, the time for stirring and shaking is 20 minutes. 4.根据权利要求1所述的轻质耐火隔声保温板的制备方法,其特征在于,所述磷酸二氢铝溶液的质量浓度为30%。4. The preparation method of light-weight fire-resistant and sound-insulating insulation board according to claim 1, characterized in that, the mass concentration of the aluminum dihydrogen phosphate solution is 30%. 5.根据权利要求1所述的轻质耐火隔声保温板的制备方法,其特征在于,所述有机硅憎水剂的质量浓度为5.7%。5. The preparation method of light-weight fire-resistant and sound-insulating insulation board according to claim 1, characterized in that, the mass concentration of the organosilicon water-repellent is 5.7%. 6.根据权利要求1所述的轻质耐火隔声保温板的制备方法,其特征在于,涂敷在所述第二成品表面的有机硅憎水剂涂层的厚度为0.5~2mm。6. The method for preparing a lightweight fire-resistant, sound-insulating and heat-insulating board according to claim 1, characterized in that the thickness of the organic silicon water-repellent coating applied on the surface of the second finished product is 0.5-2 mm. 7.一种采用权利要求1-6中任一项所述的制备方法得到的轻质耐火隔声保温板。7. A light-weight fire-resistant and sound-insulating insulation board obtained by the preparation method according to any one of claims 1-6.
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CN101362639A (en) * 2007-08-07 2009-02-11 刘贵堂 Wall insulating sheet materials, preparation method thereof and application
CN102807387A (en) * 2012-08-09 2012-12-05 河北勇龙邦大新材料有限公司 Inorganic foam heat insulating material with second-grade closed-pore structure and preparation method thereof

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