空心微球/环氧树脂材料制备及性能研究

Preparation and Performances of Hollow Glass Microsphere/Epoxy Resin Buoyancy Materials

以环氧树脂(E-51)为基体,593为固化剂,牌号为S38HS、IM16K和IM30K的3种中空玻璃微球(hollow glass microspheres,HGMs)为填料,制备了低密高强的固体浮力材料。通过密度测试和准静态单轴压缩实验,研究了HGMs的添加类型以及添加量对材料的体积密度,抗压强度、弹性模量和断裂性能的影响。结果表明:当加入不同类型的HGMs时,材料的密度为0.641~0.992 g/cm3,抗压强度为58.932~118.548 MPa,弹性模量为1.42~2.068 GPa,比压强为91.94~137.46 MPa·(g/cm3)-1和比弹性模量为1.933~2.462 GPa·(g/cm3)-1。当添加不同类型的HGMs时,试样呈45o剪切破坏的特点;断裂面,有“水纹”的特点。

The buoyancy materials with high-strength and low-density was synthesized through adhesive matrix of epoxy resin and filler of hollow glass microsphere(HGMs). The types of the HGMs were S38 HS, IM16 K, and IM30 K. The effect of the type and content of the HGMs on buoyancy material performances was studied by bulk density and uniaxial static compression test. The fracture characteristics of the buoyance materials were investigated by scanning electronic microscope(SEM). The results show that the bulk density, compressive strength, modulus, specific compression strength, and specific modulus of the material are 0.641~0.992 g/cm3, 58.932~118.548 MPa, 1.42~2.068 GPa, 91.94-137.46 MPa·(g/cm3)-1, and 1.933-2.462 GPa·(g/cm3)-1, respectively. When the materials are prepared through different types of the HGMs, the fractured surface has the characteristic of 45 o shear failure. What's more, there are some 'river patterns' in the fractured surface.