The preparation process of non-crystallized BBDCy(bisphenol B dicyanate ester resin) by alkaline catalyzer was researched. The structure and processing property of BBDCy monomer were characterized by FTIR, NMR, DSC and Rheometer. The dielectric property, heat resistance and mechanical properties of cured resin were also studied. The results show that the prepared BBDCy has high purity, and the gel time at 200 �� exceeds 100 min. This type of Cyanate has lower viscosity(��25��=470 mPa��s,��40��=210 mPa��s), which is suitable for RTM(resin transfer molding) processing at room temperature. After cured at 250 ��, the dielectric constant of resin is 2.75, and the dielectric loss is 0.007 at 10 GHz. The cured resin exhibits excellent comprehensive with the glass-transition temperature is
299 ��, the flexural strength is 174 MPa and the flexural modulus is 3.2 GPa.
Shimp D A,Christenson J R,Ising S J.Cyanate ester-anemerging family of versatile composite resins //34th International SAMPE Symposium and Exhibition.Michigan:Society for the Advancement of Material and Process Engineering,1989,34(1):222-233
Hammerton I.Chemistry and technology of cyanate esters[M].London:Chapman & Hall,1994:208-218
��־ǿ,����,������,��.��������֬���Լ��临�ϲ������� //��ʮ����ȫ�����ϲ���ѧ���������ļ�.����:���չ�ҵ������,2004:478-481 Wang Zhiqiang,Wang Jingjing,Liu Yanming,et al.The properties of modified polycyanurate ester resin and composites //NCCM-13.Beijing:Aviation Industry Press,2004:478-481(in Chinese)