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采用双螺杆挤岀机制备了PA6/CaCl_2/玻璃纤维(GF)复合材料,通过X射线衍射仪(XRD)、差示扫描量热(DSC)研究了CaCl_2用量对复合材料的结晶性能、力学性能、耐热性能的影响。结果表明,CaCl_2的加入促进了PA6/CaCl_2/GF中α晶型的生成,且y晶型用量逐渐减小。随着CaCl_2用量的增加,PA6的熔点和结晶度都逐渐降低,当CaCl_2用量大于8%后,复合材料已不结晶。随着CaCl_2加入量的增加,PA6的熔点和结晶度都逐渐降低,当CaCl_2用量大于8%后,复合材料已不结晶。随着随着CaCl_2用量的增大复合材料的拉伸强度先增大后减小,最大值为115MPa,复合材料的缺口冲击强度和维卡软化温度都逐渐减小,当CaCl_2用量为4%时分别为5.2 kJ/m~2、100.2℃。
The composites of PA6 / CaCl_2 / glass fiber (GF) were prepared by twin-screw extruder. The effects of CaCl_2 dosage on the crystallization and mechanical properties of the composites were investigated by X-ray diffraction (XRD) and differential scanning calorimetry , The impact of heat resistance. The results showed that the addition of CaCl 2 promoted the formation of α crystal in PA6 / CaCl 2 / GF, and the dosage of crystal y gradually decreased. With the increase of the amount of CaCl2, the melting point and crystallinity of PA6 decreased gradually. When the amount of CaCl2 was more than 8%, the composite did not crystallize. With the addition of CaCl 2, the melting point and crystallinity of PA6 decreased gradually. When the dosage of CaCl 2 was more than 8%, the composites did not crystallize. With the increase of the amount of CaCl 2, the tensile strength of the composites first increases and then decreases, the maximum value is 115 MPa. The notched impact strength and Vicat softening temperature of the composites decrease gradually. When the amount of CaCl 2 is 4% Respectively, 5.2 kJ / m ~ 2,100.2 ℃.