Abstract
For years Yuzhnoye State Design Office named after M.K. Yangel has been developing space systems based on advanced manufacturing sciences.At present, work is directed to the reduction of hardware weight by the replacement of product original material from traditional metals and alloys to polymeric composites (PC). Composites are actively applied in manufacturing of large-size products as rocket solid-propellant engine cases (RSPEC). One of the main factors of RSPEC exploitation is the provision this case with safe internal heat-resistant coating which carries out next functions:- -protection of thermal deformations influence specified by different values of thermal expansion coefficient of case material and solid propellant;- -protection of high-temperature gas environment influence during the product work;- -leak proofness of force cover;- -protection of moisture penetration filler and plasticizer migration to RSPEC materialIt should be noted that application of known types of heat-resistant materials and glue compositions in construction has certain risks, because properties of new composite materials, their cooperation with heat-resistant coatings and glue compositions, also physical-mechanical properties and thermal characteristics have not studied fully.It this connection, the development of modern heat-resistant coating is an important factor at RSPEC creating.During the work, analysis and selection of materials for internal heat-resistant coating, available on Ukrainian market, have been carried out by specialists of Yuzhnoye SDO and State Enterprise «Ukrainian Research Design-Technological Institute of Elastomer Materials and Products».Comprehensive analysis of multilayer structure layers of heat-resistant pack has been performed by modern methods and coating fabrication method has been improved. Findings of investigation have allowed the creating of the internal heat-resistant coating for RSPEC using PC providing their operational data.
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