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IMPACT PROPERTIES OF SYNTACTIC FOAMS AND EFFECT OF MICRO BALLOON WALL THICKNESS

机译:对称泡沫的冲击特性和微球壁厚度的影响

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摘要

Hollow particle (microballoon) filled polymeric composites, called syntactic foams, are tested for impact properties in the present work. Izod type pendulum impact testing is carried out on eight types of foams, which are made of four types of microballoons used in volume fractions of 0.5 and 0.6. Variation in the volume fraction of microballoons leads to a difference in the total energy absorbed during fracture of different types of foams. Results show that syntactic foams containing microballoons of lower density show lower impact strength because of the lower strength of these microballoons. An increase in microballoon volume fraction leads to decreased energy absorption and strength.
机译:在本工作中,对填充有空心颗粒(微气球)的聚合物复合材料(称为复合泡沫)进行了冲击性能测试。悬臂梁式冲击试验是对八种泡沫进行的,它们是由四种类型的微型气球制成的,它们的体积分数分别为0.5和0.6。微气球的体积分数的变化导致在不同类型的泡沫破裂期间吸收的总能量不同。结果显示,由于这些微气球的强度较低,因此包含较低密度微气球的复合泡沫塑料的冲击强度较低。微气球体积分数的增加导致能量吸收和强度降低。

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