New Experimental Data in DC745U

Ortiz-Acosta, Denisse¹  Cady, Carl¹  Densmore, Crystal¹ 

[1] Los Alamos National Laboratory

关键词: AGING;    CHEMISTRY;    ELASTOMERS;    LIFETIME;    MECHANICAL PROPERTIES;    PERFORMANCE;    POLYMERS;    PRODUCTION;    SILICONES;    STRAINS;    WEAPONS;   

DOI  :  10.2172/1044095
RP-ID  :  LA-UR-12-22263
PID  :  OSTI ID: 1044095
Others  :  TRN: US201214%%632

美国|英语

来源: SciTech Connect

【 摘 要 】

The objectives of this project are: (1) study the molecular and mechanical properties of DC745U - (a) DC745U is a silicone elastomer used in several weapons systems, (b) depending on their chemistry and formulation, polymers can be susceptible to damage and failures due to weak chemical linkages and physical interactions, (c) inefficient production processes can generate heterogeneities throughout the material that can contribute negatively to the overall performance and lifetime of the polyer, (d) aging, long-term thermal and radioactive conditions, and mechanical strains can affect the materials network structure and contribute to the degradation of the production; (2) characterization of DC745U materials cured under different conditions to determine possible differences to the polymer structure; and (3) this work is relevant to mission-critical programs and for supporting programmatic work for weapon research.