采用乳液聚合法,以丙烯酸酯类单体和不饱和硅油大单体为聚合单体,并加入有机改性后的纳米双羟基复合金属氧化物制备出硅丙树脂/LDH纳米复合乳液,对其成膜进行X射线衍射、透射电镜、力学性能、阻燃性能分析.结果表明:该材料为纳米复合材料,MgAl-LDH粒径为70nm,均匀地分散在聚合物中,其力学性能明显提高,抗氧指数比普通树脂高出7.5个单位,具有优异的阻燃性.
A novel organosilicon modified acrylic resin/MgAl layered double hydroxide(LDH)nanocomposites was synthesized by emulsion polymerization reaction,consisting of organo modified nano-MgAl LDH,acrylate and organosilicon with vinyl group,and characterized by X-ray diffraction(XRD),transmission electron microscopy(TEM),physics and flameretardancy capabilities testing.It has been found that the MgAl LDH particles of 70nm disperse in the polymer matrix homogeneously.The physics capabilities testing data show that organosilicon modified acrylic resin/MgAl LDH nanocomposites have significantly enhanced mechanical properties.The oxygen index(LOI)of organosilicon modified acrylic resin/MgAl LDH nanocomposites is 7.5 higher than that of pure acrylic resin,having excellent flame-retardancy capability.
参考文献
| [1] | Vaysse C.;Guerlou-Demourgues L.;Duguet E.;Delmas C. .Acrylate intercalation and in situ polymerization in iron-, cobalt-, or manganese-substituted nickel hydroxides[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,2003(15):4559-4567. |
| [2] | Yang QZ.;Sun DJ.;Zhang CG.;Wang XJ.;Zhao WA. .Synthesis and characterization of polyoxyethylene sulfate intercalated Mg-Al-nitrate layered double hydroxide[J].Langmuir: The ACS Journal of Surfaces and Colloids,2003(14):5570-5574. |
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