4 results about "Strip test" patented technology

A peel test device is provided that can maintain a constant peel angle during a peel test even for a stretchable test film, thereby obtaining a highly reliable evaluation index. [Solution] The apparatus includes an adherend 1 forming an adherend surface 1x, a base 2 supporting the adherend 1, a test film holder 3 holding one end Ta of the test film T, a vertical movement mechanism 4 moving the base 2 in the direction perpendicular to the surface D3 to pull the test film T, a horizontal movement mechanism 5 moving the base 2 in the surface length direction D1 in accordance with the movement of the base 2 by the vertical movement mechanism 4, and a correction unit 6 correcting a deviation in the peel angle θ of the test film T caused by the elongation deformation of the test film T when the test film T is pulled. The horizontal movement mechanism 5 actively moves the base 2 to one side D1a in the surface length direction D1 at a speed approximately equal to the movement speed of the base 2 by the vertical movement mechanism 4. The correction unit 6 is a correction slide mechanism that passively slides the adherend 1 relative to the base 2 to the other side D1b in the surface length direction D1 due to the tensile force of the test film T.