CS Cheimcal Test Methods

180° Peel Test

Pressure sensitive tape is used in a variety of applications including duct tape,
electrical tape, masking tape, packaging, double-sided tape, bandages,
medical devices, and other uses.

CS Chemical Test Methods

180° Peel Test

The peel test is a test that measures the stripping force of a adhesive specimen. The result is adhesion magnitude of per unit length(ex. gf/25mm). Depending on the angle of stripping, there are 180°, 90°, T stripping strength, etc.
Relevant standard are ASTM D 3330, ASTM D 903, ASTM D1876, ISO 8510-2, ISO 1139, KS T 1028. Currently, CS chemical is testing 180° Peel Test according to KS T 1028 standard.

Testing Procedure

Test specimen
Test specimen
The test piece is take three test specimen with a length of approximately 250mm at intervals of about 300mm for tape. If the width of the tape and sheet is more than 25mm, or if the width is less than 25mm in the center of the tape and sheet take each of the three sets, each of which is about 250mm long, as the original width. Cut the test specimen with a sharp knife so that the edges are not damaged. There shall be no dust or other foreign substances on the adhesive surface of the part being tested. Remark Double-sided tape adhesive surface that has not been tested when removing the stripping liner apply and test with a thin sheet of paper or a polyester film of 25 letters of title prescribed in KS C 234344.
Test specimen
Test plate
Test plate
The test plate is STS 304 steel plate specified in KS D 3698, which shall be treated on a sloped surface or treated with domestic abrasive paper. The dimensions of the test plate shall be not less than 2mm thick, approximately 50mm wide, and approximately 125mm long, marking four equal intervals of 20mm at a point 50mm at one end of the length. The surface roughness of the test plate shall be 0.05 < Ra < 0.4 m and the maximum height of Rmax < 3 m for the average roughness (Ra) of the center line specified in KS B 4287.
Test plate
Compression device
Compression device
When compressing the test specimen automatically or manually, only the weight of the rollers shall be applied to the test piece. The roller shall cover the surface with a spring hardness of 805Hs and a rubber layer of about 6mm thickness as specified in KS M 6784, approximately 45mm in width, approximately 95mm in diameter (including rubber layer), and 2000±50g in weight.
Compression device
Test of adhesion to the test plate
Test of adhesion to the test plate
Place on the test plate within 15 seconds after sampling. Match the end of the test plate with the end of the length of the test piece, Place the test specimen in the center of the width of the test plate leave the remainder of the test piece free at the other end of the test plate. When placing the test specimen, be careful not to stretch the test pieces. Attach don’t air between the test specimen and the test plate. Glue to prevent air from entering between the test piece and the test plate. Next, compression onto the test plate with a roller from an automatic compression device or a manual compression device on top of the test piece. However, the compression speed and the number of compression are selected from Table 1. The test plate attached to the test specimen shall be set up the temperature of 232°C and a relative humidity of 50±5% at least five minutes. After bend the remaining part of the test specimen at 180° to remove about 40mm, attach the end of the test plate to the lower bite hole of the test machine and the remaining part to the upper bite hole. Care shall be taken to ensure that the bent test piece is parallel to the tape attached surface. Next, pull and peel continuously at a speed of 300 to 30mm/min and measure 4 points at a 20mm interval.
Test of adhesion to the test plate
Result
Result
The results record the average of 12 points measured by three test pieces. Use the adhesion of the test plate or the adhesion of the back to record them as N/10mm. It also records the cleaning solvents used, the roller crushing speed of the test specimen, the number of compressions, and the political time after the compression.
Result