Taber abrasion

Taber abrasion test using CS-17 wheel and 1000-gload for 1000 cycles. 

Table 2. Taber Abraser Resistances of Engineering Coatings ...

Resistance to abrasion The resistance to abrasion of electroless nickel-phosphorus hardened to 600 Hy, assessed by Taber abrasion tests, has been found to be double that of electroplated nickel However, electroless nickel coatings are not suitable for applications where two electroless nickel surfaces rub together without lubrication unless the values of hardness are made to differ by over 200 Hy units. Galling of aluminium, titanium or stainless steel may be overcome by applying electroless nickel to one of the two mating surfaces. 

There is usually more than one test method to determine a performance because each test has its own behavior and meaning. As an example there are different tests used to determine the abrasion resistance of materials. There is the popular Taber abrasion test. It determines the weight loss of a plastic or other material after it is subjected to abrasion for a prescribed number of the abrader disk rotations (usually 1000). The abrader consists of an idling abrasive speed controlled rotating wheel with the load applied to the wheel. The abrasive action on the circular specimen is subjected to a rotary motion. 

Abrasion resistance, Taber abraser— weight loss, mg. 15-27 15-27 15-27 15-27 1... 

Taber abraser wear test, 9 713-714 Tabersonine, 2 98 Table of Isotopes, 24 754 Table representation, in chemoinformatics, 6 3-6... 

The only method currently standardised internationally for plastics is the abrasive wheels method, more commonly known as the Taber abraser, which is specified in ISO 9352 [42]. A pair of abrasive wheels are in contact with a driven flat disk test piece as in Figure 6.1(d). The force on the wheels and the nature of the abradant is readily varied and the test can be carried out in the presence of liquids. 

Of the contact abrasion testers currently marketed, the most widely known is the Taber Abraser manufactured by Teledyne Taber, USA,... 

Taber abrasion properties of the final polyurethane decrease as the ratio increases. 

Abrasion is closely related to friction, especially the "ploughing component" of the frictional force it is, of course, also closely related to the scratch resistance. Zapp (1955) found that the abrasion loss was proportional to the kinetic coefficient of friction and to the dynamic modulus, and inversely proportional to the tensile strength. One of the well-known abrasion testers is the Taber Abraser (ASTM D 1044 and 1300). 

Taber abraser, 841 Tacticity, 147, 167 Tait equation, 101 Telechelic polymers, 8 Telescopic flow, 528 Temperature... 

Uses a Taber Abraser, sometimes to test plastic foams. 

Figure 3. Sheffield smoothness vs. number of Taber abrasion cycles required to produce 20% image loss. (Reproduced, with permission, from Ref. 2. Copyright...

D 4060 Standard Test Method for Abrasion Resistance of Organic Coatings by the Taber Abraser... 

Abrasion or resistance to abrasion is a function of the plastic, the ingredients in the plastic, the surface of the plastic, etc. Under test ASTM D1044 abrasion is related to loss in mg under standard conditions. Wear or abrasion has a relationship with the surface properties, i.e. coefficient of friction. DIN 53754E (Taber abrasion) is a similar test using a gritty material on an abrader wheel which measures wear against a number of wheel revolutions. 

Scratch hardness may be measured on Mohs scale, which ranges from 1 for talc to 10 for diamonds, or by scratching with pencils of specified hardness (ASTM-D-3363). Hardness may also be measured by the number of bounces of a ball or the amount of rocking by a Sward hardness rocker. Abrasion resistance may be measured by the loss in weight caused by the rubbing of the wheels of a Taber abraser (ASTM-D-1044). 

Taber Abrasion Resistance - The weight loss of a plastic or other material specimen after it was subjected to abrasion in a Taber abraser for a prescribed number of specimen disk rotations, usually 1000. A Taber abraser consists of an idling abrasive wheel, designated depending on the type and grit of abrasive used as CS-lOF, H 22, etc., and a rotary disk with the specimen mounted on it. The load is applied to the wheel. The produced motion simulates that of rolling with slip. 

Test Method Taber Abraser, 500 cycles, 500 gram load,... 

CS-10 Taber Abrasion Wheel With 500g Weight... 

---