The invention discloses a penetrating fixed PMI foam sandwich composite material buoyancy tank and a preparation method thereof. The buoyancy tank comprises a PMI foam sandwich (2), a composite material skin (1) covering the surface of the PMI foam sandwich and through fixing holes (4), the fixing hole and the PMI foam sandwich form an inverted I-shaped structure, and an embedded part (3) is mounted on the inner wall of a port at one end of the fixing hole; and the PMI foam sandwich is made of nylon 6 nanofiber solution reinforced PMI foam. The buoyancy tank adopts a penetrating type fixing structure, the fixing position is located in the buoyancy tank, the overall sealing performance is effectively guaranteed while the strength of the buoyancy tank is improved, no fixing part protrusion exists on the outer surface of the buoyancy tank, the overall shape is not affected, and disassembly is convenient; according to the buoyancy tank, the PMI foam reinforced and modified by the fiber solution is adopted as a core material, and the compression strength and toughness of the buoyancy tank are greatly improved on the premise that the density of the buoyancy tank is not increased, so that light-weight preparation of equipment is realized.

    本发明公开了一种贯穿固定PMI泡沫夹芯复合材料浮箱及其制备方法。该浮箱包括PMI泡沫夹芯(2)和覆盖于PMI泡沫夹芯表面的复合材料蒙皮(1)和贯穿固定孔(4);所述固定孔与PMI泡沫夹芯形成倒装工字型结构,于固定孔一端的端口内壁安装有预埋件(3);所述PMI泡沫夹芯为尼龙6纳米纤维溶液强化PMI泡沫。该浮箱采用贯穿式固定结构,固定位置位于浮箱内部,在提高浮箱强度的同时有效保证了整体的密封性,浮箱外表面无固定件凸起,不影响整体造型,拆卸方便;该浮箱采用纤维溶液增强改性的PMI泡沫作为芯材,在浮箱密度不增加的前提下,大幅提高了浮箱的压缩强度和韧性,从而实现了装备的轻量化制备。


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    Title :

    Penetrating fixed PMI foam sandwich composite material buoyancy tank and preparation method thereof


    Additional title:

    一种贯穿固定PMI泡沫夹芯复合材料浮箱及其制备方法


    Contributors:
    HUANG XIAOZHONG (author) / JIANG XINGLEI (author) / LIU PENGHUI (author) / YAN LIZHUAN (author) / LU XIANXIAO (author) / CHEN HUIHUANG (author)

    Publication date :

    2023-04-25


    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 / B60F VEHICLES FOR USE BOTH ON RAIL AND ON ROAD , Fahrzeuge für den Verkehr sowohl auf Schienen als auch auf Straßen / C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08J Verarbeitung , WORKING-UP / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen



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