Abstract
The molding method of the reinforcement component composite applicable to the thrust vector control (TVC) system of solid rocket motor was studied by using epoxy modified cyanate ester as the matrix and high-strength glass fibers as reinforcement material, and the interfacial bonding properties between the composite and natural rubber were also analyzed. It's found that the curing process of the resin is a two-step reaction and the ideal curing condition is 130℃/2 h+180℃/2 h+220℃/2 h.The glass transition temperature of the resin casting exceeds 240℃.The tensile and bending strength of the composite material are all greater than 525 MPa at room temperature, and the strength retention rates at 160℃ are all 100%. The interlaminar strength at room temperature is greater than 30 MPa, and it is still greater than 20 MPa at 160℃.Compared with the traditional epoxy amine phenolic/glass fiber composite material, the prepared composite shows higher interfacial shear strength with natural rubber, at a maximum improvement of 25%, which indicates that the high thermotolerance composite is superior in the interfacial bonding properties.Using injection molding method, the interface shear strengths of Chemlock 205/220, Thinkbond 11/27 and Polyton 813/823 were all above 7.0 MPa, which are 14.4%, 18.1% and 30% higher than that of molding method respectively. It indicates that the injection molding is more conducive to the interface adhesion.
| Translated title of the contribution | Cyanate ester structural composite for TVC system and its interface adhesion properties to natural rubber |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 822-829 |
| Number of pages | 8 |
| Journal | Guti Huojian Jishu/Journal of Solid Rocket Technology |
| Volume | 43 |
| Issue number | 6 |
| DOIs | |
| State | Published - Dec 2020 |