硼酸锌/膨胀型复配阻燃体系阻燃聚甲醛的研究

摘要:本文以 APP/MEL/PER 为基本膨胀阻燃体系，研究了硼酸锌与抗氧剂含量，以及硅烷偶联剂不同种类与含量等对阻燃 POM 阻燃性能及力学性能的影响，并采用氧指数测定仪及垂直燃烧仪测试了阻燃 POM 的阻燃性能，采用拉力测试仪测试了各种样品的力学性能，采用热重-差示量热扫描仪（TG-DSC）、傅里叶红外（FT-IR）及锥形量热仪等对所得样品进行了分析表征。结果表明，加入 1%含量的硼酸锌时，复合阻燃 POM 的极限氧指数（LOI）可达 55，燃烧等级为 V-0，拉伸强度为 26.19MPa；硅烷偶联剂 KH-560 的添加使得阻燃 POM 的力学性能有所提高，当添加 1%含量时，材料的拉伸强度为 29.86MPa，同时 LOI 可达 50，燃烧等级为 V -0；抗氧剂 1010 的添加对阻燃 POM 的力学性能影响不大，但所得材料的氧指数明显下降。66261

关键词：聚甲醛；硼酸锌；聚磷酸铵；三聚氰胺；季戊四醇

Study on Flame Retardant POM with Zinc Borate / Intumescent Flame Retardant

Abstract：In this paper, the effects of different contents and contents of zinc borate and antioxidant on the flame retardancy and mechanical properties of flame retardant POM were studied by using APP / MEL / PER as the basic flame retardant system. The thermal performance of flame retardant POM was tested by the exponential tester and the vertical burner. The mechanical properties of various samples were tested by tensile tester. The thermogravimetric thermometer (TG-DSC), Fourier infrared (FT-IR) and cone calorimeter were used to characterize the samples. The results show that the limiting oxygen index (LOI) of the composite flame retardant POM is 55, the combustion grade is V-0, the tensile strength is 26.19MPa, and the addition of silane coupling agent KH-560 is added when adding 1% zinc borate So that the mechanical properties of flame retardant POM increased, when adding 1% content, the tensile strength of the material 29.86MPa, while LOI up to 50, the combustion level of V -0; antioxidant 1010 to add flame retardant POM Of the mechanical properties of little impact, but the material of the oxygen index decreased significantly.

Keywords: polyoxymethylene; zinc borate; ammonium polyphosphate; melamine; pe ntaerythritol

1 绪论 1

1.1 聚甲醛阻燃剂的研究 1

1.1.1 硼系阻燃剂 1

1.1.2 氮系阻燃剂 1

1.1.3 磷系阻燃剂 2

1.1.4 复合阻燃体系 2

1.2 阻燃剂的阻燃机理 2

1.2.1 单一阻燃剂的阻燃机理 2

1.2.2 膨胀型阻燃系统(IFR)的阻燃机理 3

1.3 改善聚甲醛机械性能的研究 3

1.3.1 硅烷偶联剂 3

1.3.2 抗氧剂 1010 3

1.4 本课题的研究内容及意义 4

1.4.1 主要研究内容 4

1.4.2 研究的主要意义 4

2 实验内容 5

2.1 实验材料 5

2.2 实验仪器 5

2.3 聚甲醛样条的制备 6

2.4 阻燃性能的测定及其表征硼酸锌/膨胀型复配阻燃体系阻燃聚甲醛的研究:http://www.751com.cn/huaxue/lunwen_74112.html