Ceramer compositions and antistatic abrasion resistant ceramers made therefrom
A technology of ceramic body and composition, which is applied in the direction of conductive paint, other household appliances, coatings, etc., and can solve the problems of easy stretching and limited use of organic matrix
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test approach 1
[0090] Test Method 1: Surface Resistivity Test
[0091] The surface resistivity of the ceramic body was measured with an ETS Model 872 Broad Range Resistance Meter (available from Electro-Tech Systems, Inc, Glenside, PA) equipped with a Model 803B probe. Measurements are performed at an ambient temperature of 23±1°C. Two concentric ring electrodes were placed on the surface of the ceramic body, and an external voltage of 100 volts was applied to the surface of the ceramic body. Surface resistivity is measured with this wide range resistivity meter. The resistance meter can measure 10 3 -10 12 Ohm / □(square) surface resistivity reading, 6×10 13 Ohm / □ is the maximum limit that the resistivity can be measured. Surface resistivity equal to or less than 10 12 Ohm / □ ceramic bodies are considered antistatic coatings.
test approach 2
[0092] Test Method 2: Measuring Static Charge Dissipation Time
[0093] The static charge dissipation time of the ceramic body of the present invention was measured with an ETS Model 406C Static Decay TestUnit (available from Electro-Tech Systems, Inc.). The device discharges the surface of a specific ceramic body through a high-voltage (5000 volt) corona discharge method, and then uses a fieldmeter to measure the decay time of the surface voltage from 5000 volts to 0 volts. All recorded static charge dissipation time values were calculated as the average of at least three independent static charge dissipation time measurements. A ceramic body with a short static charge dissipation time has better antistatic properties than a ceramic body with a long static charge dissipation time.
test approach 3
[0094] Test Method 3: Measuring Abrasion Resistance
[0095] The abrasion resistance of the samples was measured using a Taber Abrasion Tester Model 503 (available from Taber Co., Tonawanda, NY). The sample is placed on a rotating table, and two weighed grinding wheels are used to rotate on the surface of the sample. Specifically, a Taber CS-10F weighed grinding wheel with a weight load of approximately 500 grams / wheel was used. Vacuum is applied near the specimen to remove residual debris from grinding during grinding. The vacuum apparatus used was part of a Model 503 Taber Abrasion Tester. The Model 503 Taber Abrasion Tester has the vacuum power setting set at 100%.
[0096] The wear resistance of the samples was determined by monitoring the relationship between the haze formed on the worn portion of the samples and the number of grinding cycles. Haze is measured by ASTM Standard D-1003-95 "Standard Test Method for Haze and Light Transmission of Transparent Plastics" usi...
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