The invention belongs to the technical field of building materials, and relates to a fireproof flame-retardant core material special for an elevator, an aerogel felt layer is used as a base body, cementing layers are symmetrically arranged up and down, sulfur magnesium board layers are arranged on the surfaces of the cementing layers respectively, the aerogel felt layer is a flexible heat preservation felt with the thickness of 15-20 mm, and the aerogel felt layer is formed by compounding nano silicon dioxide aerogel and a pre-oxidized fiber felt; the thickness of the sulfur magnesium board is 3-6mm, and the cementing layer is a hot melt adhesive or a waterborne polyurethane adhesive with the coating weight of 150-200g/m < 2 >. The invention further discloses a preparation process of the aerogel felt layer and the sulfur magnesium board layer. The sulfur magnesium plates are compounded on the two sides of the aerogel felt, so that the core material has compression resistance, heat preservation and heat insulation performance at the same time, and the core material can be used for elevator fireproof doors and indoor decoration. According to the fire extinguishing device, fire spreading and smoke spreading can be effectively restrained, fire development is restrained within a short time, and therefore sufficient time is provided for evacuation of people, and life health of people is protected.

    本发明属于建筑材料技术领域,涉及一种电梯专用防火阻燃芯材,以气凝胶毡层为基体,上下对称设有胶合层,在胶合层表面各设有硫镁板层,其中,所述气凝胶毡层是厚度15~20mm的柔性保温毡,由纳米二氧化硅气凝胶与预氧化纤维毡复合;所述硫镁板厚度3~6mm,所述胶合层为涂布量150~200g/㎡的热熔胶或水性聚氨酯胶粘剂。本发明还公开了气凝胶毡层和硫镁板层的制备工艺。本发明在气凝胶毡两侧复合硫镁板,使其同时具备抗压、保温、隔热性能,该芯材可用于电梯防火门、室内装修。能够有效地遏制火势的蔓延以及烟气的传播,在比较短的时间内遏制火势的发展,从而为人员的疏散提供充足的时间,保护人们的生命健康。


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    Title :

    Fireproof flame-retardant core material special for elevator


    Additional title:

    一种电梯专用防火阻燃芯材


    Contributors:
    WANG SUPENG (author) / GONG HONGXIA (author) / TANG ZUOMING (author)

    Publication date :

    2024-06-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B66B Aufzüge , ELEVATORS / C04B Kalk , LIME / E04F FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS , Ausbau von Bauwerken, z.B. Treppen, Fußböden



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