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Dual-Curing Phthalonitrile-Propargyl Ether Resin for Heat-Resistant Fiber

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Dual-Curing Phthalonitrile-Propargyl Ether Resin for Heat-Resistant Fiber Reinforced Plastics Produced by Cost-Effective Techniques

 

Monomers containing both phthalonitrile and propargyl-ether thermosetting groups are introduced. The monomers can self-cure resulting in a polymer with thermal properties inherent to phthalonitriles. Curing with catalysts such as Ni, Co, and Cu or aromatic diamine affects the curing mechanism and thus changes properties of the resulting polymer. Thermal (TMA, TGA) and mechanical properties (flexural strength and fracture toughness) of the thermosets were studied. Easy-processing formulation (6 hour curing at 180 °C) was developed. Samples of the CFRP were manufactured by vacuum infusion molding process at 130 °C on carbon fabric, cured under vacuum or under additional pressure loading. CFRP samples were tested for mechanical properties at room temperature and heated up to 400 °C. Samples retained 70–75 % of τ12 and τ13 at 400 °C while at 300 °C the decrease in mechanical properties did not exceed 15 %.

 

Author: Boris Bulgakov

 

Conference: SAMPE Seattle 2017

 

SKU/Code: SE17--0587

Pages: 14


 


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