3 methods commonly used to test the wear resistance of automotive interior materials

Abrasion resistance is an important index requirement for automotive interior materials. Automotive seat fabrics need to have high resistance so that they do not overball or hook during use to ensure the beauty of the seats. The following is to provide you with the Chang Bo automotive interior material wear resistance test methods.

1.Taber Abrasion Method- Taber Abrasion Tester

The American standard ASTM D3884 "Standard test method for abrasion resistance of textile fabrics (TABER apparatus)" provides for the Taber abrasion method, the test principle of the TABER abrasion method is: the test specimen is placed on a rotating platform, through The test principle of the TABER abrasion method is as follows: The specimen is placed on a rotating platform, and the specimen is worn by two rolling friction wheels on top of it under a certain load, with one friction wheel facing outward and the other friction wheel facing inward, forming a circular wear mark. After a specified number of rubbing cycles, the degree of wear of the specimen is evaluated by appearance.

Test method: fix the specimen face up on the rotating platform and mount the selected grinding wheel on the supporting lever, after selecting the suitable load, lower the supporting lever to make the grinding wheel contact with the specimen surface, connect and turn on the vacuum device, start the instrument and test the number of rotations set by the counter. After the test, remove the specimen, check and record the wear of the specimen, and use the gray sample card according to GBT250 "Textile Color Fastness Test: Gray Sample Card for Evaluating Color Change".

2. STROLL abrasion method

According to ASTM D 3886 "Standard testmethod for abrasion resistance of textile fabrics (inflated diaphragmapparatus)", the test principle of STROLL abrasion resistance method is that the test specimen is placed on an inflatable rubber sheet with constant air pressure. The STROLL method is based on the principle that the test specimen is placed on an inflatable rubber diaphragm with constant air pressure and rubbed with sandpaper having specified surface characteristics.

Test method: Place the specimen on the rubber membrane in a flat state, then place the sandpaper on the abrasive plate and make the contact head connected to the sandpaper flush with the surface of the sandpaper, then apply an air pressure of 28 kPa below the diaphragm and 454 g above the abrasive plate, and ensure that the control of air pressure and the contact between the inflated sample and the loaded sandpaper are in a stable and balanced state, start the apparatus, and perform the test according to the After the test, remove the specimen, check and record the abrasion of the specimen, and evaluate the color change in the test area with a gray sample card according to GBT250 "Textile Color Fastness Test: Gray Sample Card for Evaluating Color Change". Operation, in the back of the specimen flat pad a thickness of 3mm, density of 30kgm3 of polyurethane foam, and use the clamp ring to fix the specimen on the grinding head, again the table felt placed on the grinding table, then the friction fabric placed on the table felt, and will generate 2kPa pressure weight on the friction fabric, and then the friction fabric fixed, after the grinding head mounted on the abrasion test machine, and the grinding head to apply After the test, remove the specimen, check and record the wear of the specimen, and use the gray sample card to evaluate the color change in the test area according to GBT250 "Textile Color Fastness Test: Gray Sample Card for Evaluating Color Change".

3. Martindale Abrasion Method - Martindale Abrasion And Pilling Tester

Martindale Abrasion Method is often used for the abrasion resistance test and pilling evaluation of textiles, and the test method of shoe uppers using Martindale Method is also applicable to the test of abrasion resistance of automotive leather.

Test method: Using Martindale abrasion method, the specimen is rubbed with standard rubbing fabric under constant pressure, and the relative motion of Lissajous figure is carried out between the rubbing fabric and the specimen to produce friction in all directions, and the degree of damage to the specimen is evaluated after completing the specified number of rubbing times.

2022-07-19 10:22