The invention discloses a life jacket with an LDPE foaming inner core and a preparation method of the inner core of the life jacket. The life jacket comprises an outer sleeve and the inner core playing a role of a floater, the inner core is arranged in the interlayer of the outer sleeve, and the formula of the inner core basically comprises the following components: 100 parts of LDPE; 40-50 partsof toluene diisocynate; 3-5 parts of tribasic lead sulfate; 40-50 parts of polyether triol; 1.2-1.8 parts of DCP; 0.3-0.5 parts of triethylene diamine; 20-40 parts of a foaming agent; 3-5 parts of polyoxyalkylene; 35-55 parts of EVA; 0.6-1 parts of diethylethanolamine; 0.1-0.5 parts of a cross-linking agent; 0.2-0.6 parts of dibutyltin dilaurate; 5-25 parts of zinc oxide, 0.2-0.8 parts of stannousoctoate and 2-8 parts of stearic acid. The life jacket has the advantages that after the inner core is immersed in water for 24 hours, the buoyancy loss does not exceed 5%, and a good buoyancy statecan be stably kept in water.

    本发明公开了一种带有LDPE发泡内芯的救生衣及其内芯的制备方法,包括有外套和起浮子作用的内芯,所述内芯置于外套的夹层中,该内芯的配方基本组成为:LDPE 100份;甲苯二异氰酸酯40~50份;三碱式硫酸铅3~5份;聚醚三元醇40~50份;DCP 1.2~1.8份;三乙烯二胺0.3~0.5份;发泡剂20~40份;聚氧化烯3~5份;EVA 35~55份;二乙基乙醇胺为0.6~1份;交联剂0.1~0.5份;二月桂酸二丁基锡为0.2~0.6份;氧化锌5~25份;辛酸亚锡0.2~0.8份;硬脂酸2~8份。本发明的优点在于本内芯在水中浸24小时后,其浮力损失不超过5%,在水中能稳定地保持良好的浮力状态。


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    Title :

    Life jacket with LDPE foaming inner core and preparation method of inner core of life jacket


    Additional title:

    一种带有LDPE发泡内芯的救生衣及其内芯的制备方法


    Contributors:
    BAO GUOPING (author) / HUANG XI'AN (author)

    Publication date :

    2020-04-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63C LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS , Zuwasserlassen, Trockenstellen, Docken oder Bergen von Schiffen / C08J Verarbeitung , WORKING-UP / 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



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