From an engineering practical perspective, modification, thermal analysis for curing properties of cyanate ester resin, as well as development of adhesives and composites based on cyanate ester resin are reviewed. Modification of cyanate involves toughening by rubbers or thermoplastics, synergistic modification with epoxy and bismaleimide, and so on. The adhesive development examination results show that the satisfied lap shear strength and peel strength are gained by using hydroxyl-terminated poly (ether sulfone) (PES-OH), and moreover, relative lower dielectric constant and lower loss tangent are maintained. Although the strength can be improved by adding epoxy, such kind adhesive composition still has relative poor electrical properties. The developed cyanate adhesive SY-CN has higher lap shear strengths up to 30 MPa at temperatures below 175 ℃, lower dielectric loss of 0.0065, unchanged strength level after 200 hours of hot-aging at 200 ℃, and satisfied anti-peel performance, e.g. sandwich honeycomb climbing drum peel strength is up to 83.2 N?mm/mm. More and more studies on cure kinetic thermal analysis have indicated that the increase or decrease in curing activation energy data of modified cyanate ester resin versus unmodified cyanate ester resin can be synchronized with up or down of maximum cure peak temperature from the differential scanning calorimetry (DSC) curves, and also can be changed oppositely. Cyanate ester resin modified with hydroxyl-terminated poly (ether sulfone) (PES-OH) has lower maximum cure peak temperature of about 20 ℃ reduction versus unmodified cyanate, but the curing activation energy increase which can be due to change of reaction mechanism and steric hindrance effect. Based on change of maximum cure peak temperatures (Tp) with different heating rate data (?) from DSC curves, a linear equation of Tp = T1 + ΔT ln ? has been established, then, the curing temperature parameter can be more reasonably determined.


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    Title :

    Modification and thermal analysis for curing properties of cyanate-ester resin


    Contributors:
    QIAO Haitao (author) / BAO Jianwen (author) / ZHONG Xiangyu (author) / ZHANG Lianwang (author) / SONG Jiangpeng (author)


    Publication date :

    2019




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown





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