CN108975765A - 一种新型真空绝热板及其制备和应用 - Google Patents
一种新型真空绝热板及其制备和应用 Download PDFInfo
- Publication number
- CN108975765A CN108975765A CN201810775315.1A CN201810775315A CN108975765A CN 108975765 A CN108975765 A CN 108975765A CN 201810775315 A CN201810775315 A CN 201810775315A CN 108975765 A CN108975765 A CN 108975765A
- Authority
- CN
- China
- Prior art keywords
- parts
- vacuum heat
- vitrified powder
- powder
- insulating board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 239000000843 powder Substances 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 43
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000011162 core material Substances 0.000 claims abstract description 30
- 239000000919 ceramic Substances 0.000 claims abstract description 25
- 150000001875 compounds Chemical class 0.000 claims abstract description 24
- 239000003365 glass fiber Substances 0.000 claims abstract description 20
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 18
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 18
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 17
- 239000003463 adsorbent Substances 0.000 claims abstract description 13
- 239000002274 desiccant Substances 0.000 claims abstract description 13
- 230000004888 barrier function Effects 0.000 claims abstract description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 9
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052901 montmorillonite Inorganic materials 0.000 claims abstract description 9
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 7
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- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 5
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 claims abstract description 4
- DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims abstract description 4
- MPCRDALPQLDDFX-UHFFFAOYSA-L Magnesium perchlorate Chemical compound [Mg+2].[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O MPCRDALPQLDDFX-UHFFFAOYSA-L 0.000 claims abstract description 3
- 239000000292 calcium oxide Substances 0.000 claims abstract description 3
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- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims abstract description 3
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 4
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- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 3
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- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 3
- MQJKPEGWNLWLTK-UHFFFAOYSA-N Dapsone Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 MQJKPEGWNLWLTK-UHFFFAOYSA-N 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- PGEAEAYLSCKCCO-UHFFFAOYSA-N benzene;n-methylmethanamine Chemical compound CNC.C1=CC=CC=C1 PGEAEAYLSCKCCO-UHFFFAOYSA-N 0.000 claims description 2
- 239000004035 construction material Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 125000004185 ester group Chemical group 0.000 claims description 2
- 125000003916 ethylene diamine group Chemical group 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims 1
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- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 claims 1
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
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- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 2
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 2
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- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
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- 229920000573 polyethylene Polymers 0.000 description 2
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 2
- 229910001950 potassium oxide Inorganic materials 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
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- 239000004952 Polyamide Substances 0.000 description 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
- E04B1/803—Heat insulating elements slab-shaped with vacuum spaces included in the slab
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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Abstract
本发明公开了一种新型真空绝热板，包括阻气层和芯材，导热系数为0.001‑0.002W/m·K，所述阻气层由多层复合薄膜材料制成，所述芯材由中空陶瓷微珠、玻璃纤维、纳米二氧化硅、瓷化粉、碳化硅、气体吸附剂和干燥剂制备而成，所述瓷化粉包括低温瓷化粉、中温瓷化粉、高温瓷化粉，所述气体吸附剂选自硅胶、氧化铝、分子筛、天然黏土中的一种，所述干燥剂算选自五氧化二磷、无水氯化钙、碱石灰、生石灰、NaOH固体、蒙脱石、高氯酸镁、活性无水硫酸铜中的一种或几种。本发明制备的新型真空绝热板具有较高的防火性能，较低的导热系数和很好的耐腐蚀、防水、防风、优异的力学性能，且使用寿命长，不易燃烧。
Description
技术领域
本发明涉及建筑保温材料技术领域，具体涉及一种新型真空绝热板。
背景技术
近年来，节能环保成为人们最关心的问题，传统的有机保温材料易燃易腐 蚀的缺陷限制了其在建筑领域的广泛应用，而无机保温材料又存在保温性能差， 密度大等缺点，有很大的局限性。因此人们越来越重视隔热保温材料的制作与 使用，特别是对一些新兴、环保夹层材料的保温性能、隔音性能的研究越来越 深入。
真空绝热板是目前世界上最为先进的高效保温材料之一，它是真空保温材 料中的一种，主要是由填充芯材与真空保护表层复合而成，它能有效地避免空 气对流引起的热传递，因此具有极低的导热系数，可以达到 0.003W/(m·K)-0.004W/(m·K)，相当于普通绝热材料的10倍甚至更高，而其厚 度仅为普通绝热材料的1/7，因而具有环保和节能的双重优点。其耐火等级为A 级，使用寿命可与建筑物同寿命。虽然该种材料作为墙体保温材料的生产成本 较髙，但它属于一次性投资是一种高效环保的新型保温材料，因此有着广阔的应用前景。
但是现有的真空绝热板对使用环境具有极高的要求，不同膜材的使用温度 不同，不锈钢膜材的真空绝热板能够在高温环境下实现应用，而铝塑膜真空绝 热板在低温下的使用效果更佳，而当真空绝热板两面的温差较大时，传统的真 空绝热板就不能在这些领域中使用了。
申请号为201410558510.0的中国发明专利公开了一种低热桥的真空绝热 板，具有上下封边结构，采用两种高阻隔性膜材封装而成，其中面积较大的膜 材为主封装膜材，包裹住芯材的四周，而面积较小的膜材为次封装膜材，局部 覆盖真空绝热板的上或者下封装表面。该发明的优点是真空绝热板表面热桥效 应低，保温绝热效果好。其缺点是这种真空绝热板的高阻隔性膜材在低温环境 下具有非常好的保温性能，但是该材料不具有耐高温的性能，高温环境下聚乙 烯薄膜受热分解，使得整体的保温性能大幅度下降。
申请号为201220429416.1的中国实用新型专利公开了一种高强度真空绝热 板，该真空绝热板包括：上层阻隔板，芯材，下层阻隔板，气体交换孔，气体 微渗透膜，密封盖。本实用新型的优点是所述真空绝热板具有耐高温、高强度、 气体透过率和水透过率低的特点，同时具有耐碱性、耐用性、耐侯性好的特点。 其缺点是上下隔板均采用不锈钢材质，热桥效应严重，虽然能够长期在高温环 境下使用，但是在低温环境下使用效果不佳，影响其进一步的应用和推广。
上述几个发明专利虽然都公开了一种真空绝热板，但是其膜材均采用单一 的材质，对真空绝热板的使用领域造成了一定的局限性，本发明旨在研究一种 新型的真空绝热板，通过添加无机瓷化粉和中空陶瓷微珠，提高绝热板的防火 等级和保温保冷的性能，拓展真空绝热板的应用领域。
发明内容
为了解决上述的技术问题，本发明提供一种新型真空绝热板及其制备和应 用，其目的在于，提供一种具有较高防火等级和保温保冷的性能的绝热板，通 过添加中空陶瓷微珠和红外遮光剂碳化硅，降低绝热板的导热系数，使得绝热 板的导热系数达到0.001-0.002W/m·K。
本发明提供一种新型真空绝热板，包括阻气层和芯材，导热系数为 0.001-0.002W/m·K，所述阻气层由多层复合薄膜材料制成，所述芯材由中空陶瓷 微珠、玻璃纤维、纳米二氧化硅、瓷化粉、碳化硅、气体吸附剂和干燥剂制备 而成，其中，中空陶瓷微珠50-70份、玻璃纤维40-60份、纳米二氧化硅20-30 份、瓷化粉30-60份、碳化硅10-20份、气体吸附剂10-15份和干燥剂5-20份， 所述瓷化粉包括低温瓷化粉、中温瓷化粉、高温瓷化粉，所述低温瓷化粉选自 低温玻璃粉、氢氧化铝、氢氧化镁中的一种或几种，所述中温瓷化粉选自蒙脱 土、云母粉、硅藻土中的一种或几种，所述高温瓷化粉选自氧化金属或高岭土，所述气体吸附剂选自硅胶、氧化铝、分子筛、天然黏土中的一种，所述干燥剂 算选自五氧化二磷、无水氯化钙、碱石灰、生石灰、NaOH固体、蒙脱石、高氯 酸镁、活性无水硫酸铜中的一种或几种。
作为本发明进一步的改进，多层复合薄膜材料为多层聚醚醚酮薄膜与聚酯 基膜复合材料，由0.01-0.02mm的聚醚醚酮薄膜和0.01-0.02mm的聚酯基膜相间 压合而成，每一层薄膜用固化剂进行固定，所得多层复合薄膜材料厚度为 0.1-0.15mm。
作为本发明进一步的改进，固化剂选自乙二胺、二乙烯三胺、苯二甲胺、 二氨基二苯基甲烷、二氨基二苯基砜中的一种。
作为本发明进一步的改进，芯材包括以下重量份的原料：中空陶瓷微珠 60-75份、玻璃纤维45-50份、纳米二氧化硅22-27份、瓷化粉40-50份、碳化 硅12-17份、气体吸附剂12-14份和干燥剂10-15份。
作为本发明进一步的改进，芯材包括以下重量份的原料：中空陶瓷微珠70 份、玻璃纤维47份、纳米二氧化硅25份、瓷化粉45份、碳化硅15份、气体 吸附剂12份和干燥剂12份。
作为本发明进一步的改进，瓷化粉中低温瓷化粉、中温瓷化粉、高温瓷化 粉的重量比例为1：(2-4)：(2-5)。
作为本发明进一步的改进，按照以下方法制备：
按比例称取中空陶瓷微珠、玻璃纤维、纳米二氧化硅、瓷化粉、碳化硅、 气体吸附剂和干燥剂放入密封良好的搅拌机中，利用雾化喷枪加入环氧树脂和 稀释剂进行搅拌混合；将混合后的粉末置于模具中热压成型；将制得的芯材密 封陈放3h后置于100-110℃烘箱干燥至绝干，同时，将多层复合薄膜材料置于 50℃烘箱干燥至绝干；之后将干燥过的芯材用多层复合薄膜材料包覆，用封装 机封装，当封装真空度达到0.05Pa时进行封口，制得新型真空绝热板。
作为本发明进一步的改进，热压条件为：热压温度160℃、热压压力4MPa、 热压时间30min。
作为本发明进一步的改进，环氧树脂和稀释剂添加的质量相等，为中空陶 瓷微珠5％，所述稀释剂选自515-稀释剂、616-慢干稀释剂、UV-SG稀释剂、416- 开油水、UV-SB稀释剂、436-开油水中的一种。
本发明进一步保护一种根据上述一种新型真空绝热板用在建筑材料中的应 用。
本发明具有如下有益效果：
1、本发明通过添加无机瓷化粉，当材料遇到300℃以上的无焰高温和 500℃以上的火焰烧蚀时，能够转化为无机的中空陶瓷材料，这种形成的特殊 陶瓷材料具备绝缘、隔热、隔火、隔水、抗震、热失重小等优点，能有效的保 护内部材料免受大火与高温的破坏，提高了材料的防火等级；
2、通过添加中空陶瓷微珠和红外遮光剂碳化硅，降低辐射传热的影响，增 加芯材的真空度，降低绝热板的导热系数，使得绝热板的导热系数达到0.001-0.002W/m·K，具有保温保冷的作用；
本发明表面材料为多层复合薄膜材料，具有很好的耐腐蚀、防水、防风、 优异的力学性能，且使用寿命长，不易燃烧。
附图说明
图1为新型真空绝热板的制备工艺图。
具体实施方式
下面将结合本发明实施例，对本发明实施例中的技术方案进行清楚、完整的 描述，显然，所述的实施例只是本发明的部分具有代表性的实施例，而不是全 部实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的其他所 有实施例都属于本发明的保护范围。
实施例1新型真空绝热板的制备
芯材原料组成：中空陶瓷微珠50份、玻璃纤维40份、纳米二氧化硅20份、 低温玻璃粉6份、蒙脱土12份、氧化镁12份、碳化硅10份、氧化铝10份和无 水氯化钙5份；
多层复合薄膜材料的制备：由0.01mm的聚醚醚酮薄膜和0.01mm的聚酯基 膜相间压合而成，每一层薄膜用乙二胺进行固定，所得多层复合薄膜材料厚度 为0.1mm；
新型真空绝热板的制备：按比例称取中空陶瓷微珠、玻璃纤维、纳米二氧 化硅、低温玻璃粉、蒙脱土、氧化镁、碳化硅、氧化铝和无水氯化钙放入密封 良好的搅拌机中，利用雾化喷枪加入等量的环氧树脂和稀释剂(中空陶瓷微珠 5％)进行搅拌混合；将混合后的粉末置于模具中热压成型，热压温度160℃、 热压压力4MPa、热压时间30min；将制得的芯材密封陈放3h后置于100℃烘 箱干燥至绝干，同时，将多层复合薄膜材料置于50℃烘箱干燥至绝干；之后将 干燥过的芯材用多层复合薄膜材料包覆，用封装机封装，当封装真空度达到0.05Pa时进行封口，制得新型真空绝热板，得率为69％。
实施例2新型真空绝热板的制备
芯材原料组成：中空陶瓷微珠70份、玻璃纤维60份、纳米二氧化硅30份、 氢氧化镁6份、云母粉24份、高岭土24份、碳化硅20份、天然黏土15份和 蒙脱石20份；
多层复合薄膜材料的制备：由0.02mm的聚醚醚酮薄膜和0.02mm的聚酯基 膜相间压合而成，每一层薄膜用二乙烯三胺进行固定，所得多层复合薄膜材料 厚度为0.14mm；
新型真空绝热板的制备：按比例称取中空陶瓷微珠、玻璃纤维、纳米二氧 化硅、氢氧化镁、云母粉、高岭土、碳化硅、天然黏土和蒙脱石放入密封良好 的搅拌机中，利用雾化喷枪加入等量的环氧树脂和稀释剂(中空陶瓷微珠5％) 进行搅拌混合；将混合后的粉末置于模具中热压成型，热压温度160℃、热压压 力4MPa、热压时间30min；将制得的芯材密封陈放3h后置于110℃烘箱干燥 至绝干，同时，将多层复合薄膜材料置于50℃烘箱干燥至绝干；之后将干燥过 的芯材用多层复合薄膜材料包覆，用封装机封装，当封装真空度达到0.05Pa时 进行封口，制得新型真空绝热板，得率为82％。
实施例3新型真空绝热板的制备
芯材原料组成：中空陶瓷微珠70份、玻璃纤维47份、纳米二氧化硅25份、 氢氧化铝5份、硅藻土15份、氧化钾15份、碳化硅15份、分子筛12份和五 氧化二磷6份、无水氯化钙6份；
多层复合薄膜材料的制备：由0.01-0.02mm的聚醚醚酮薄膜和0.01-0.02mm 的聚酯基膜相间压合而成，每一层薄膜用固化剂进行固定，所得多层复合薄膜 材料厚度为0.1-0.15mm；
新型真空绝热板的制备：按比例称取中空陶瓷微珠、玻璃纤维、纳米二氧 化硅、氢氧化铝、硅藻土、氧化钾、碳化硅、分子筛和五氧化二磷、无水氯化 钙放入密封良好的搅拌机中，利用雾化喷枪加入等量的环氧树脂和稀释剂(中 空陶瓷微珠5％)进行搅拌混合；将混合后的粉末置于模具中热压成型，热压温 度160℃、热压压力4MPa、热压时间30min；将制得的芯材密封陈放3h后置 于105℃烘箱干燥至绝干，同时，将多层复合薄膜材料置于50℃烘箱干燥至绝 干；之后将干燥过的芯材用多层复合薄膜材料包覆，用封装机封装，当封装真 空度达到0.05Pa时进行封口，制得新型真空绝热板，得率为90％。
对照例1按照专利ZL 201610465275.1“一种真空绝热板的制备方法”的 方法制备
S1：将玻璃微珠、玻璃纤维和活性炭纤维等比例混合；
S2：将S1中的混合物与甲基纤维素饱和溶液充分搅拌混合，混合形成絮状；
S3：依据厚度要求均匀地将S2中的混合物倒在不锈钢筛网上，通过晾晒、 烘干、裁切后得到真空绝热板芯材；
S4：将真空绝热板芯材置于阻隔包装袋内，并进行抽真空封装得到真空绝 热板。
进一步的，S1中玻璃微珠、玻璃纤维和活性炭纤维的混合物中各组分质量 百分比为：玻璃微珠占30％～50％；玻璃纤维占49％～69％；活性炭纤维占1％～ 6％。本例中以制备1000kg为例，S1中将350kg的玻璃微珠、620kg的玻璃纤 维和30kg的活性炭纤维混合。
进一步的，所述甲基纤维素饱和溶液为羟丙基甲基纤维素饱和溶液。
进一步的，所述羟丙基甲基纤维素饱和溶液的浓度为0.2％～2％。
进一步的，所述筛网为60～90目规格。
进一步的，所述阻隔包装袋为厚度不小于100μm的多层复合高阻隔薄膜。
进一步的，所述多层复合高阻隔薄膜以PE(聚乙烯)为内粘层，与Al(铝)、 VMPET(聚酯镀铝膜)、PA(聚酰胺，俗称尼龙)通过干式复合的工艺高温高频热贴 合而成。
进一步的，所述真空绝热板芯材的厚度为6mm～10mm。
进一步的，所述玻璃微珠为空心玻璃微珠。
测试例1常规性能测试
结果见表1.
表1性能测试结果
由上表可知，本发明制备的新型真空绝热板具有极低的导热系数，保温效果 极好，优于对照例，同时，防火等级高(A级)，比对照例(A2级)好。另外， 本发明制备的新型真空绝热板的力学性能也明显优于对照例。
本领域的技术人员在不脱离权利要求书确定的本发明的精神和范围的条件 下，还可以对以上内容进行各种各样的修改。因此本发明的范围并不仅限于以 上的说明，而是由权利要求书的范围来确定的。
Claims (10)
1.一种新型真空绝热板，包括阻气层和芯材，其特征在于，导热系数为0.001-0.002W/m·K，所述阻气层由多层复合薄膜材料制成，所述芯材由中空陶瓷微珠、玻璃纤维、纳米二氧化硅、瓷化粉、碳化硅、气体吸附剂和干燥剂制备而成，其中，中空陶瓷微珠50-70份、玻璃纤维40-60份、纳米二氧化硅20-30份、瓷化粉30-60份、碳化硅10-20份、气体吸附剂10-15份和干燥剂5-20份，所述瓷化粉包括低温瓷化粉、中温瓷化粉、高温瓷化粉，所述低温瓷化粉选自低温玻璃粉、氢氧化铝、氢氧化镁中的一种或几种，所述中温瓷化粉选自蒙脱土、云母粉、硅藻土中的一种或几种，所述高温瓷化粉选自氧化金属或高岭土，所述气体吸附剂选自硅胶、氧化铝、分子筛、天然黏土中的一种，所述干燥剂算选自五氧化二磷、无水氯化钙、碱石灰、生石灰、NaOH固体、蒙脱石、高氯酸镁、活性无水硫酸铜中的一种或几种。
2.根据权利要求1所述一种新型真空绝热板，其特征在于，所述多层复合薄膜材料为多层聚醚醚酮薄膜与聚酯基膜复合材料，由0.01-0.02mm的聚醚醚酮薄膜和0.01-0.02mm的聚酯基膜相间压合而成，每一层薄膜用固化剂进行固定，所得多层复合薄膜材料厚度为0.1-0.15mm。
3.根据权利要求2所述一种新型真空绝热板，其特征在于，所述固化剂选自乙二胺、二乙烯三胺、苯二甲胺、二氨基二苯基甲烷、二氨基二苯基砜中的一种。
4.根据权利要求1所述一种新型真空绝热板，其特征在于，所述芯材包括以下重量份的原料：中空陶瓷微珠60-75份、玻璃纤维45-50份、纳米二氧化硅22-27份、瓷化粉40-50份、碳化硅12-17份、气体吸附剂12-14份和干燥剂10-15份。
5.根据权利要求1所述一种新型真空绝热板，其特征在于，所述芯材包括以下重量份的原料：中空陶瓷微珠70份、玻璃纤维47份、纳米二氧化硅25份、瓷化粉45份、碳化硅15份、气体吸附剂12份和干燥剂12份。
6.根据权利要求1所述一种新型真空绝热板，其特征在于，所述瓷化粉中低温瓷化粉、中温瓷化粉、高温瓷化粉的重量比例为1：(2-4)：(2-5)。
7.根据权利要求1所述一种新型真空绝热板，其特征在于，按照以下方法制备：
按比例称取中空陶瓷微珠、玻璃纤维、纳米二氧化硅、瓷化粉、碳化硅、气体吸附剂和干燥剂放入密封良好的搅拌机中，利用雾化喷枪加入环氧树脂和稀释剂进行搅拌混合；将混合后的粉末置于模具中热压成型；将制得的芯材密封陈放3h后置于100-110℃烘箱干燥至绝干，同时，将多层复合薄膜材料置于50℃烘箱干燥至绝干；之后将干燥过的芯材用多层复合薄膜材料包覆，用封装机封装，当封装真空度达到0.05Pa时进行封口，制得新型真空绝热板。
8.根据权利要求7所述一种新型真空绝热板，其特征在于，所述热压条件为：热压温度160℃、热压压力4MPa、热压时间30min。
9.根据权利要求7所述一种新型真空绝热板，其特征在于，所述环氧树脂和稀释剂添加的质量相等，为中空陶瓷微珠5％，所述稀释剂选自515-稀释剂、616-慢干稀释剂、UV-SG稀释剂、416-开油水、UV-SB稀释剂、436-开油水中的一种。
10.一种将根据上述任一权利要求所述的一种新型真空绝热板用在建筑材料中的应用。
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