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�������պ����ѧѧ�� 2012, Vol. 38 Issue (5) :707-710    DOI:
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������1, ��־ǿ1, ������2, ������1*
1. �й����չ�ҵ���Ź�˾ �������ֽṹ�о���, ���� 250023;
2. �վ�פ���Ͼ��´�����, ���� 250023
Synthesis and properties of bisphenol B dicyanate ester resin
Xuan Lixin1, Wang Zhiqiang1, Wang Hongwei2, Liu Yanming1*
1. Research Institute for Special Structure of Aeronautical Composite, China Aviation Industry Corporation, Jinan 250023;
2. China Airforce Representative Office in Jinan, Jinan 250023

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ժҪ �о��˼��Դ߻����ϳɷǾ�̬˫��B�����������Ʊ�����,���ú������(FTIR)���˴Ź���(NMR)���ȷ���(DSC)�������ǵȷ���������˫��B���������Ľṹ���ܺ͹�������,�о��Ͳ�������֬�̻��������ܡ��������ܺ���ѧ����.�о��������,�Ʊ���˫��B�����������ȸ�,200 ��ʱ������ʱ����100 min����;�������������нϵ͵�ճ��(��25��=470 mPa��s,��40��=210 mPa��s),����������֬����ģ��(RTM,Resin Transfer Molding)���͹���;250 ��̻���Ľ�糣��Ϊ2.75,������Ľ�����0.007(10 GHz),������ת���¶�299 ��,����ǿ��174 MPa,ģ��3.2 GPa,�ۺ���������.
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Abstract�� 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.
Keywords�� bisphonel B dicyanate ester resin   resin transfer molding   heat resistance   dielectric property     
Received 2012-02-14;
������, ��־ǿ, ������, ������.˫��B�����������Ʊ�������[J]  �������պ����ѧѧ��, 2012,V38(5): 707-710
Xuan Lixin, Wang Zhiqiang, Wang Hongwei, Liu Yanming.Synthesis and properties of bisphenol B dicyanate ester resin[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2012,V38(5): 707-710
http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2012/V38/I5/707
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