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ABS树脂是五大合成树脂之一,其在各个领域中具有相当广泛的应用。通过探究ABS辐照变色机理,设计实验探索不同抗氧剂的添加对ABS性能的影响。研究了辐照后主抗氧剂1010、抗氧剂1098和抗氧剂1076以及辅助抗氧剂626和168的添加量、主抗氧剂和辅抗氧剂相互复配对ABS的力学性能、扫描电镜、热性能、黄度的影响。测试结果表明:加0.5 phr主抗氧剂1076、0.5 phr主抗氧剂1010、0.3 phr主抗氧剂1098时,耐辐照效果良好;0.7 phr主抗氧剂1010和0.3 phr辅抗氧剂168复配、0.7 phr主抗氧剂1098和0.3 phr辅抗氧剂168复配时,黄度效果较好;辐照后材料拉伸强度、弯曲强度下降,冲击强度上升;从扫描电镜图可以看出,冲击缺口断裂形貌显示为韧性断裂;相比较辐照前,材料的热稳定性和玻璃化转变温度都有所增加。
ABS resin is one of five synthetic resins, which has a wide range of applications in various fields. By investigating the mechanism of ABS discoloration, experiments were designed to explore the effect of different antioxidants on the performance of ABS. The main antioxidants 1010, antioxidants 1098 and antioxidants 1076 and auxiliary antioxidants 626 and 168 after irradiation were studied. The mechanical properties of the main antioxidants and the auxiliary antioxidants were compounded with each other. The scanning electron microscope Electron microscopy, thermal properties, yellowness. The test results show that the radiation-proof effect is good when the primary anti-oxidant 1076 and 0.5 phr 1010 and the primary anti-oxidant 10 phr 10.3 phr at 10 phr and the primary anti-oxidant 1010 phr and the anti-oxidant 0.3 phr 168 composite, 0.7 phr main antioxidant 1098 and 0.3 phr auxiliary antioxidant 168 complex, the yellowing effect is better; after irradiation, the tensile strength, bending strength decreased, the impact strength increased; from the SEM image can It can be seen that the fracture morphology of the impact notch shows ductile fracture. The thermal stability and the glass transition temperature of the material increase before irradiation.