CN104647833B - 一种真空绝热板及其制造方法 - Google Patents

一种真空绝热板及其制造方法 Download PDF

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CN104647833B
CN104647833B CN201510002538.0A CN201510002538A CN104647833B CN 104647833 B CN104647833 B CN 104647833B CN 201510002538 A CN201510002538 A CN 201510002538A CN 104647833 B CN104647833 B CN 104647833B
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CN104647833A (zh
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何奕
李壮贤
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Qingdao Kerui new environmental protection materials Group Co. Ltd.
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/144Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers using layers with different mechanical or chemical conditions or properties, e.g. layers with different thermal shrinkage, layers under tension during bonding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76Heat, 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
    • E04B1/78Heat insulating elements
    • E04B1/80Heat insulating elements slab-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/20All layers being fibrous or filamentary
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/24Structural elements or technologies for improving thermal insulation
    • Y02A30/242Slab shaped vacuum insulation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00Architectural or constructional elements improving the thermal performance of buildings
    • Y02B80/10Insulation, e.g. vacuum or aerogel insulation

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  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
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  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Thermal Insulation (AREA)
  • Laminated Bodies (AREA)

Abstract

一种真空绝热保温板及其制作方法,所述真空绝热板包括芯材和高阻气复合膜,在所述芯材至少包括多层无机纤维层,所述多层玻璃纤维层是上下堆叠或者通过粘结剂上下连接,所述多层无机纤维层中的至少两层的无机纤维密度或成分不同。本发明真空绝热保温板保温性能优异,与其他保温材料相比,相同厚度的真空绝热保温板具有更出色的保温性能,因此在实际应用中,使用厚度较小的真空绝热保温板即可达到其他材料可达到的保温效果,从而节约成本。

Description

一种真空绝热板及其制造方法
技术领域
本发明属于建筑领域,尤其涉及一种真空绝热板的保温芯材,属于E04B领域。
背景技术
现有真空绝热保温板主要由外覆高阻气膜与内部隔热芯材构成,隔热芯材一般采用常规保温材料、玻璃纤维与气凝胶等组合制成,缺点为材料成本高,能耗高,不环保。
发明内容
针对目前现有技术的缺点,本发明的目的是提供一种真空绝热保温板芯材及其制作方法,解决现有市场产品材料成本高,能耗高的缺点。
为了实现上述目的,本发明的技术方案如下:一种真空绝热板,包括芯材和高阻气复合膜,在所述芯材至少包括多层无机纤维层,所述多层无机纤维层是上下堆叠或者通过粘结剂上下连接,所述多层无机纤维层中的至少两层的无机纤维层的密度或成分不同。
作为优选,玻璃纤维层的层数为3-100层。进一步优选为5-50层。
作为优选,无机纤维的密度为10-300kg/m3
作为优选,任意相邻两层的无机纤维层的密度或成分不相同。
作为优选,沿着上部往下,无机纤维层的密度增加或者依次减小。
作为优选,沿着上部往下,无机纤维层的长径比依次增加或者依次减小的幅度越来越小。
作为优选,其中密度大的层和密度小的层交替设置。
作为优选,所述的无机纤维层是玻璃棉纤维板、硅酸铝纤维板、离心玻璃棉板、岩棉板、废纸浆、纺织纤维板中两种以上交替设置。
与现有技术相比较,本发明的真空绝热保温芯材具有如下的优点:
1)无机纤维不易燃烧,本身导热系数低,可满足国家六五节能规划的需要。芯材不掺加其他粉末类保温填料,增加了保温板的强度,提高了真空稳定性,能达到较低的导热系数。原材料价格低廉,保证一定的导热系数,降低了原料成本,减少了对环境的污染。
2)采用密度或成分不同的无机纤维层作为真空绝热板的芯材,性能高,绝热系数有了很大提高,使真空绝热板的厚度大大降低。
3)将芯材分为多层,即增加了芯材的强度,又可以增加芯材的可替换性,即当芯材某一层损毁时,其余层可以重复再次利用。
4)提供了一种玻璃纤维层的制作方法,通过该方法,可以制造出非常适合真空绝热板的芯材,从而降低了真空绝热板的造价。
附图说明
图1为本发明的真空绝热板芯材的示意图。
具体实施方式
一种真空绝热板,一种真空绝热板,包括芯材和高阻气复合膜,在所述芯材至少包括多层无机纤维层1,所述多层无机纤维层1是上下堆叠或者通过粘结剂上下连接,所述多层无机纤维层中的至少两层的无机纤维层的密度或成分不同。
请注意,此处的多层无机纤维层包括2层以及2层以上。
作为优选,其中芯材包括覆盖无机纤维层的上层区和/或位于无机纤维层下部的下层区。
作为优选,上层区和/或下层区由硅酸铝纤维板、离心玻璃棉板、岩棉板、纺织纤维板、废纸浆板中的一种或多种制成。
作为优选,无机纤维层的层数为3-100层。进一步优选为5-50层。
作为优选,无机纤维的密度为10-300kg/m3
作为优选,任意相邻两层的无机纤维层的密度或成分不相同。
作为优选,沿着上部往下,无机纤维层的密度增加或者依次减小。通过实验证明,密度依次增加或者依次减少所带来的隔热效果更好,能够达到较优化的隔热效果,能够提高10%左右的隔热效果。
作为优选,沿着上部往下,无机纤维层的密度依次增加或者依次减小的幅度越来越小。通过实验证明,无机纤维层的密度依次增加或者依次减少的幅度越来越小所带来的隔热效果更好,能够达到更优的隔热效果。
作为优选,其中密度大的层和密度小的层交替放置。通过实验证明,此种放置隔热效果很好,能够提高7.3%以上的隔热效果。作为优选,密度大的层的密度为100-300kg/m3,密度小的密度为10-100 kg/m3,选择此条件下的密度会达到更优的绝热效果。
作为优选,超细玻璃棉纤维板,体积密度为10kg/m3­-100 kg/m3,厚度为1mm-9mm。
硅酸铝纤维板体积密度为20 kg/m3-200 kg/m3,优选50-100 m3,厚度为1mm-9mm。
离心玻璃棉板体积密度为20 kg/m3-150 kg/m3,优选50-100 m3,厚度为2mm-25mm。
岩棉板体积密度为30 kg/m3-200 kg/m3,优选70-130 m3,厚度为3mm-35mm。
一种制造前面所述的真空绝热板的工艺,包括如下步骤:
分散:将无机纤维与分散剂和无机胶放入水中,搅拌使其充分分散;
成型:将浆液倒入模具过滤,挤压制作成芯材片;
烘干:将芯材片放入烘干设备中烘干,烘干温度为100-120℃;
芯材成型:不同长径比的芯材片交错叠加放置,或者选择放置上层区和/或下层区,得到绝热保温板芯材。
将绝热板芯材或者与其他层互相结合形成真空绝热板芯材;
将绝热保温板芯材放入高阻气复合膜袋中,然后通过抽真空的方式,得到真空绝热板。
实施例1:
用1mm超细玻璃棉纤维板(30kg/m3)和3mm超细玻璃棉纤维板(50kg/m3)交替叠放直至1.2cm,得到真空绝热板芯材。
实施例2:
用1mm超细玻璃棉纤维板(100kg/m3)和2mm陶瓷纤维板(70kg/m3)交替叠放直至1.5cm,得到真空绝热板芯材。
实施例3:
用1mm超细玻璃棉纤维板和2mm陶瓷纤维板及2mm离心玻璃棉板交替叠放直至2cm,得到真空绝热板芯材。
实施例4:
用1mm超细玻璃棉纤维板和3mm陶瓷纤维板、2mm岩棉板交替叠放直至3cm,得到真空绝热板芯材。
实施例5:
用1mm超细玻璃棉纤维板和3mm陶瓷纤维板、3mm离心玻璃棉板、3mm岩棉板交替叠放直至3cm,得到真空绝热板芯材。
虽然本发明已以较佳实施例披露如上,但本发明并非限定于此。任何本领域技术人员,在不脱离本发明的精神和范围内,均可作各种更动与修改,因此本发明的保护范围应当以权利要求所限定的范围为准。

Claims (4)

1.一种真空绝热板,包括芯材和高阻气复合膜,在所述芯材至少包括多层无机纤维层,所述多层无机纤维层是上下堆叠或者通过粘结剂上下连接,所述多层无机纤维层中的任意相邻两层的无机纤维层的密度不相同;沿着上部往下,无机纤维层的密度依次增加或者依次减小;沿着上部往下,无机纤维层的密度依次增加或者依次减小的幅度越来越小;无机纤维层的层数为3-100层。
2.根据权利要求1所述的真空绝热板,其特征在于,无机纤维的密度为10-300kg/m3
3.根据权利要求1所述的真空绝热板,其特征在于,所述的无机纤维层是玻璃棉纤维板、硅酸铝纤维板、离心玻璃棉板、岩棉板、废纸浆、纺织纤维板中两种以上交替设置。
4.一种制作权利要求1-3之一的真空绝热板的工艺,包括如下步骤:
分散:将无机纤维与分散剂和无机胶放入水中,搅拌使其充分分散;
成型:将浆液倒入模具过滤,挤压制作成芯材片;
烘干:将芯材片放入烘干设备中烘干,烘干温度为100~120℃;
芯材成型:不同密度的芯材片交错叠加放置,得到绝热保温板芯材。
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CN106926520A (zh) * 2015-12-30 2017-07-07 福建赛特新材股份有限公司 真空绝热板使用的内部芯材及其生产方法以及真空绝热板
CN106838548A (zh) * 2017-03-16 2017-06-13 宜兴市四通家电配件有限公司 一种真空隔热板及其制备方法
CN113356381A (zh) * 2021-06-30 2021-09-07 广州市鲁班建筑工程技术有限公司 一种建筑用复合防腐保温材料

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