The effect of nuclear radiation on dielectric properties of epoxy TDE-85/glass fiber E composite and bismaleimide 4501A/glass fiber D3W composite was studied in oxygen ambience using accelerated aging mothed. After samples were irradiated by 60Co-rays at a range of dose 50~800�kkGy in air, the dielectric loss and dielectric permittivity of materials were measured using wave-guide method at 10�kGHz. It was found that the dielectric loss and dielectric permittivity increases with radiation dose, but increasing is not much, and the antiradiation property of 4501A/glass fiber D3W composite is better than that of TDE-85/glass fiber E composite. The change reasons of the dielectric property were analyzed using infrared (IR) and dynamic thermo gravimetric analysis (TGA) .
����.�����ܻ����״��������ܻ���Ӱ����о� .����:������ҵ��ѧ��ѧԺ,2005 Gong Zhaohe. Study on influence of environmental on radome performances . Xi-an:School of Natural and Applied Science, Northwestern Polytechnical University,2005(in Chinese)
Mortley Aba. Radiation effects on the properties of a polyurethane/epoxy graft interpenetrating polymer network 26th Annual Canadian Nuclear Society Conference and 29th CNS/CNA Student Conference. Toronto, Canada:Canadian Nuclear Society,2005:509-519
Egusa Shigenori. Radiation resistance of polymer composites at 77 KEffects of reinforcing fabric type, specimen thickness, radiation type and irradiation atmosphere[J].. Cryogenics.1991,31(1):7-15