INORGANIC-ORGANIC HYBRID SILANE BASED FIBER SIZING PACKAGES FOR COMPOSITE ARMOR APPLICATIONS

摘要

For this research mixed organo-functional silane coupling agents will be used to control fiber-matrix debonding. The time and temperature dependence of the fiber-matrix bond strength as a function of reactive silane surface coverage will also be examined. To increase frictional sliding during fiber pull-out inorganic sol-gel chemistry, through the use of tetraethoxysilane (TEOS), will be investigated as an artificial surface roughening scheme. The hydrolysis, surface deposition, condensation, and crosslinking of TEOS in the presence of traditional silane coupling agents will also be studied. Surface roughness will be characterized via AFM and frictional pull-out will be measured via microdrop debond testing.