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    • 1. 发明申请
    • FLEXIBLE POLYURETHANE FOAM WITH REDUCED FLAMMABILITY AND A METHOD FOR ITS PRODUCTION
    • 具有降低易燃性的柔性聚氨酯泡沫及其生产方法
    • WO2017043984A1
    • 2017-03-16
    • PCT/PL2015/000151
    • 2015-09-25
    • POLITECHNIKA RZESZOWSKA IM. IGNACEGO ŁUKASIEWICZA
    • CZECH-POLAK, JustynaHENECZKOWSKI, MaciejOLEKSY, MariuszOLIWA, Rafał
    • C08J9/00C08G18/00C08K9/08
    • C08J9/0066C08G18/2081C08G18/4837C08G2101/0008C08G2101/005C08G2101/0083C08G2350/00C08J9/0061C08J2201/022C08J2205/06C08J2375/04C08J2461/28C08K3/32C08K3/38C08K9/08C08K2003/323C08L75/04
    • The foam is in the form of a linear polyol addition with diisocyanate. As a nanofiller it contains halloysite organically modified with melamine- formaldehyde adduct in the form of grains fragmented to a micrometer size and the system of halogen-free flame retardants with a various action mechanism as the said nanofiller and additive flame retardants as ammonium phosphate and boric acid. The foam is prepared from reaction of the polyol masterbatch of linear polyol with a diisocyanate, in the presence of a polymerization catalyst, and in the presence of the surface tension reducing agents and water as a blowing agent. The method for preparing is characterized in that an organically modified and mechanically fragmented halloysite is used as a nanofiller, earlier modified with melamine-formaldehyde adduct, obtained with a molar ratio of melamine to formaldehyde from 1 : 1 to 1 : 4. The polyol masterbatch is prepared by stirring 50 ÷ 98% by weight of polyol having a hydroxyl number L OH = 20 ÷ 80 mg KOH/g, 2 ÷ 10% by weight of a foaming agent, 0.5 ÷ 8% by weight of a surface tension reducing agent, 10 ÷ 10% by weight of a modified halloysite, 1 ÷ 40% by weight of ammonium phosphate and 0.1 ÷ 10% of boric acid. The invention may be used in the preparation of the foams with reduced density, increased fire resistance and limited dripping during application of a flame to the foam.
    • 该泡沫体是以二异氰酸酯加成的直链多元醇的形式。 作为纳米填料,它包含以三聚氰胺 - 甲醛加合物有机改性的多水高岭土,其形式为碎片碎片至微米尺寸,并且具有各种作用机理的无卤阻燃剂体系作为所述纳米填料和作为磷酸铵和硼酸的添加剂阻燃剂 酸。 泡沫是由多元醇直链多元醇母料与二异氰酸酯在聚合催化剂存在下,在表面张力降低剂和作为发泡剂的水的存在下反应而制备的。 制备方法的特征在于,将有机改性和机械碎裂的多水高岭土用作纳米填料,其先前用三聚氰胺 - 甲醛加合物改性,三聚氰胺与甲醛的摩尔比为1:1至1:4。多元醇母料 通过搅拌50重量%〜98重量%的羟值为20〜80mg KOH / g的多元醇,2〜10重量%的发泡剂,0.5〜8重量%的表面张力降低剂, 10〜10重量%的改性多水高岭土,1〜40重量%的磷酸铵和0.1〜10%的硼酸。 本发明可用于制备具有降低的密度,增加的耐火性和在向泡沫施加火焰期间限制的滴落的泡沫。