Temperature Dependence Evaluation of Tensile Shear Strength of Adhesive

User Benefits

- Tensile shear bond strength measurement of adhesives conforming to JIS K 6850, JIS K 6831, and ISO 4587 is possible. - Tensile shear bond strength in a temperature environment from -40 °C to 250 °C can be measured using the thermostatic chamber introduced in this article. - The AGX-V2 enables detailed measurement of rapid and minute changes in brittle fracture in thermal environments with sampling rates of up to 10 kHz.

Introduction

Adhesives have been used for various purposes since ancient times for connecting objects. In recent years, the demand for adhesives in the automotive industry has increased. Until now, automotive parts have been made of metal materials, and welding and bolting have been the main methods of joining. However, with the increase in the number of automotive parts made of lightweight materials such as reinforced resin as alternatives to metal, the use of adhesives suitable for joining different materials has increased. Furthermore, the bonding of components using adhesives is expected to offer advantages not found with conventional welding or bolted connections, such as improved stress distribution and rigidity of the bonded part as a result of surface bonding, and a shortened polishing process of the bonded surface. Adhesives for automotive applications are required to have high cold resistance in the low-temperature environment of extremely cold regions, high heat resistance in the high-temperature environment of desert areas, as well as high heat resistance in the high-temperature environment around engine rooms and brakes. Therefore, it is necessary to select an adhesive suitable for the operating environment. The effect of temperature changes on the tensile lap-shear adhesive strength was measured using a precision universal testing machine and a thermostatic chamber in the test.

January 21, 2025 GMT