The invention discloses a double-wall corrugated pipe with good flame retardance and a preparation method thereof, belonging to the technical field of pipe machining. The double-wall corrugated pipe comprises a double-wall corrugated pipe body, wherein a flame-retardant coating is sprayed in the double-wall corrugated pipe body, and flame-retardant particles are mixed in the flame-retardant coating; the flame-retardant coating is prepared from, in parts by weight, waterborne polyurethane resin, a thickening agent, a vinyl acetate emulsion, modified nano silicon dioxide, a coalescing agent and an adhesive; and the flame-retardant particles are prepared from, in parts by weight, polypropylene resin, SBS, hexabromocyclododecane, a flame retardant, butyl acetate and an auxiliary agent. The double-wall corrugated pipe body has good flame retardance, the flame-retardant coating is sprayed to the interior of the double-wall corrugated pipe, and the solid flame-retardant particles are sprayed to the interior of the flame-retardant coating, so the internal flame retardance of the pipe is further improved, and the problem of pipe damage caused by poor flame retardance under high-temperature and dry conditions is solved.

    本发明公开了一种阻燃性好的双壁波纹管及其制备方法,涉及管材加工技术领域,包括双壁波纹管本体,所述双壁波纹管本体的内部喷涂有阻燃涂层,所述阻燃涂层的内部混合有阻燃颗粒;所述阻燃涂层包括以下重量份的原料:水性聚氨酯树脂、增稠剂、醋酸乙烯乳液、改性纳米二氧化硅、成膜助剂和粘合剂;所述阻燃颗粒包括以下重量份的原料:聚丙烯树脂、SBS、六溴环十二烷、阻燃剂、醋酸丁酯和辅助剂。本发明中的双壁波纹管本体具有良好的阻燃性,同时双壁波纹管的内部喷涂有阻燃涂层,并且阻燃涂层内部喷涂有固体的阻燃颗粒,从而进一步的提高了管材内部的阻燃性,从而可以防止管材在高温、干燥的情况下,因阻燃性较差导致出现管材损伤的问题。


    Access

    Download


    Export, share and cite



    Title :

    Double-wall corrugated pipe with good flame retardance and preparation method thereof


    Additional title:

    一种阻燃性好的双壁波纹管及其制备方法


    Contributors:
    LIU JUNFENG (author) / WANG JINNAN (author) / PAN XUEDONG (author)

    Publication date :

    2021-08-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    C08J Verarbeitung , WORKING-UP / B66D Haspeln , CAPSTANS / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C09D Überzugsmittel, z.B. Anstrichstoffe, Firnisse oder Lacke , COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS / F16S CONSTRUCTIONAL ELEMENTS IN GENERAL , Konstruktionselemente allgemein



    Forklift battery with good flame retardance

    ZHAO JIE / WANG YANBING / SU BIN et al. | European Patent Office | 2022

    Free access

    Automatic framing method for PE double-wall corrugated pipe

    XU JIANHUA / YANG DABING / LI DACHAO | European Patent Office | 2023

    Free access

    CORRUGATED FIBREBOARD (Double Wall)

    SAE Technical Papers | 1944


    Fiberboard, Corrugated Double Wall

    SAE Technical Papers | 1982