After the cleaning trial was performed, the parts were subject to contact angle goniometry. Their contact angle was compared to the contact angle of several dirty parts. Twenty-three readings were taken of the clean parts.
Trial Results:
T&D Finishing Co. TD-110 An average value of 45.043 + 7.081 degrees. Fourteen readings were taken of the dirty parts with an average value of 58.357+ 8.776 degrees.
Valtech Corp. Valtron SP2275 After the parts were subjected to the cleaning trial, they were then subjected to a comparative analysis to dirty parts, using contact angle goniometry. Fourteen readings of the dirty parts were taken, and they had an average contact angle of 58.357 + 8.776 degrees. Twenty-nine readings of the ultrasonically cleaned parts were taken, and they had an average contact angle of 70.828 + 8.414 degrees. This value is unexpectedly higher than that of the dirty parts, suggesting that the clean parts are not as clean as the dirty parts.
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Who We Are
The Toxics Use Reduction Institute at the University of Massachusetts Lowell (“TURI”), is a state agency and public institution of higher education, formed under MGL c. 75, and the Toxics Use Reduction Act (“TURA”), MGL c. 21I.
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General
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