Mechanism of weak bond formation in CFRP epoxy adhesion joints
Source abstract
Abstract
Saltwater contamination, such as human factored sweat dew and breath moisture, is studied to explain the mechanisms of weak bond formation in carbon fiber reinforced plastics (CFRP) epoxy adhesive joints. First, a mechanism of epoxy ring consumption by Cl− is proposed to explain the reduction of covalent bond density at the adhesion interphase in a function form of pH alkaline drift. Second, a double cantilever beam test (DCB test) is applied to saltwater-polluted CFRP adhesion samples to prove the formation of the contamination-triggered weak bonds. Applying the data to the function, the thickness of the contamination layer is estimated to imply that adhesive flow in the adhesion process dissipates the layer to make the weak bond formation a statistical phenomenon.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Mechanical Behavior of Composites · Smart Materials for Construction · Fiber-reinforced polymer composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Senior Chief Researcher, Institute of Aeronautical Technology, Mitaka-shi, Japan
Technician, Amil Corporation, Chiyoda-ku, Japan
Senior Engineer, Japan Aerospace Exploration Agency (JAXA), Mitaka-shi, Japan
Funding
Innovative Science and Technology Initiative for Security, ATLA Japan
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