To find a substitute for Acetone in current process
Date Run:
05/03/2011
Experiment Procedure:
Four cleaners were selected from the lab's on-line database, www.cleanersolutions.org, based on past testing results matching client supplied information. All products were used at full strength as well as the clients current cleaner. Each solution used at room temperature and cleaning was done with a wiping process.
Three coupons for each cleaner were placed into a Gardner Straight Line Washability unit. A Kimberly-Clark Wypal reinforced paper towel was attached to the cleaning sled and soaked with 5-7 sprays of cleaning solutions. Each coupon was sprayed 7-10 times with the same cleaning solution. The cleaning unit was run for 20 cycles (~33 seconds). At the end of the cleaning, coupons were wiped also following the procedure the company uses in their manufacturing process. (They were not wire brushed though like in the manufacturing process.) Final weights for the cutting fluid and visual observations were taken for the sharpie coupons. Observations and efficiencies were recorded.
Trial Results:
All five cleaners resulted in more than 90% removal of the contaminant. The table below shows the amounts of soil added and removed by each cleaning solution.
Gravimetric Table
Cleaner
Initial wt
Final wt
% Removed
Observations for Sharpie Removal
Acetone (current)
48.182
48.1856
95.62
Removed sharpie well
48.0134
48.0151
No residue, dried fast.
47.8607
47.8624
Bio T Max
48.12
48.1238
96.09
Took longest to remove Sharpie
47.9842
47.9874
No residue seen, dried fast
48.0651
48.0672
Dysol 108
48.0414
48.0434
97.37
Removed Sharpie well
47.8926
47.8943
No residue seen and dried fast
48.1616
48.1636
Ez Solv
47.9728
47.9727
100.36
Removed Sharpie well
48.0621
48.0619
Left visible residue, long to dry
48.1526
48.1522
May be fine with extra dry wiping before weld
BIO-SOLV
48.1108
48.1114
98.95
Removed Sharpie well
48.1453
48.1462
No visible residue, dried well.
47.7649
47.7656
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
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