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在室温下,测定了CaCO3填充丙烯腈-丁二烯-苯乙烯三元共聚物(ABS)复合材料的力学性能。结果表明,随着CaCO3质量分数[w(CaCO3)]的增加,试样的拉伸弹性模量呈非线性提高,而拉伸强度和拉伸断裂能下降。当w(CaCO3)小于10％时,试样的简支梁缺口冲击强度随着w(CaCO3)的增加而迅速减小,而弯曲强度却增大,w(CaCO3)达10％后两者均缓慢地减小。CaCO3的表面处理及其粒径大小对上述力学性能的影响不太明显。此外,测量了试样的维卡软化温度(Tvc),Tvc随着w(CaCO3)的增加而提高,这表明填充CaCO3粒子有利于改善ABS的耐热性能。
The mechanical properties of CaCO3-filled acrylonitrile-butadiene-styrene terpolymer (ABS) composites were measured at room temperature. The results show that with the increase of CaCO 3 content, the tensile modulus increases nonlinearly, while the tensile strength and tensile energy decrease. When w (CaCO3) is less than 10%, the notched impact strength decreases with the increase of w (CaCO3), but the flexural strength increases with w (CaCO3) up to 10% Slowly decrease. The effect of CaCO3 surface treatment and its size on the mechanical properties is not obvious. In addition, the Vicat softening temperature (Tvc) of the sample was measured, Tvc increased with the increase of w (CaCO3), which shows that the CaCO3 particles are filled to improve the heat resistance of ABS.