摘要
采用滚球法制备了二氧化硅气凝胶超细粉体(SAR)强化的厘米级轻质环氧树脂空心球(SAR-EHS),利用真空搅拌-模压成型法将SAR-EHS、空心玻璃微珠(HGMS)与环氧树脂(EP)复合制备了EP/SAR-EHS/HGMS三相复合轻质浮力材料,并对其密度、压缩强度以及微观结构等性能进行了表征。结果表明:SAR-EHS和HGMS能够在EP中混合使用,并使得基体与微球结合更加紧密,极大地减小了浮力材料密度。制备得到的超低密度复合浮力材料的密度≤0.40 g/cm~3,压缩强度为7~15 MPa,适用于深度为700~1 500 m海域内的较大载荷作业。
The centimeter level lightweight epoxy hollow spheres(SAR-EHS) reinforced by silica aerogel ultrafine powder(SAR) were prepared by rolling ball method.The EP/SAR-EHS/HGMS composite three-phase lightweight buoyancy material was prepared by vacuum stirring and molding with SAR-EHS,hollow glass beads(HGMS) and epoxy resin(EP).Its density,compressive strength and microstructure were characterized.The results show that:SAR-EHS and HGMS can be mixed in EP,and make the matrix and microspheres bond more closely,which greatly reduces the density of buoyancy materials.The density of the ultra-low density composite buoyancy material is less than 0.40 g/cm~3 and its compressive strength is 7~15 MPa.It is suitable for large load operation in the sea area with depth of 700~1 500 m.
引文
[1]关宏韬,冯志涛,贾立双,等.空心玻璃微珠固体浮力材料生产工艺及材料性能检测研究[J].海洋技术学报,2014,33(5):91-95.
[2]王鹏.空心玻璃微珠表面改性对固体浮力材料性能影响研究[D].哈尔滨:哈尔滨工程大学,2016.
[3]黄炳坤.固体浮力材料的制备及性能研究[D].大连:大连理工大学,2015.
[4]李珍.空心玻璃微球填充环氧树脂固体浮力材料研究[D].长沙:中南大学,2014.
[5]刘文栋.空心玻璃微珠的浮选及其在固体浮力材料中复合应用技术研究[D].青岛:中国海洋大学,2014.
[6]潘顺龙,张敬杰,宋广智.深潜用空心玻璃微珠和固体浮力材料的研制及其研究现状[J].热带海洋学报,2009,28(4):17-21.
[7]杨小瑞,郝旭峰,李琛骏,等.一种新型三相复合环氧基泡沫材料的制备[J].塑料科技,2014,42(12):75-78.
[8]Ren S,Guo A,Xue D,et al.Preparation and characteristic of a temperature resistance buoyancy material through a gelcasting process[J].Chemical Engineering Journal,2016,288:59-69.
[9]Wu X,Dong L,Zhang F,et al.Preparation and characterization of three phase epoxy syntactic foam filled with carbon fiber reinforced hollow epoxy macrospheres and hollow glass microspheres[J].Polymer Composites,2016,37(2):497-502.
[10]Wu X,Tang B,Yu J,et al.Preparation and investigation of epoxy syntactic foam(epoxy/graphite reinforced hollow epoxy macrosphere/hollow glass microsphere composite)[J].Fibers&Polymers,2018,19(1):170-187.
[11]李晴媛.无卤阻燃苯乙烯聚合物复合材料的制备和阻燃性能研究[D].洛阳:河南科技大学,2009.
[12]王平.环氧树脂基轻质浮力材料的制备与性能研究[D].青岛:中国海洋大学,2014.