To evaluate the effectiveness and performance of various cleaners on the removal of rosin #4 from glass coupons.
Date Run:
06/16/2020
Experiment Procedure:
A total of seven pre-weighted glass coupons were soiled, all with the given containment, Rosin #4. The bottom one third of the coupon was soiled on one side using a handheld swab. Each coupon was placed into a beaker and immersed for a total of 60 minutes. During this process, any noticeable soil removal was observed at 5,15,30 and 60 minutes. Coupons were allowed to dry for five minutes, and afterwards final weights were recorded as well as efficiency of removal was calculated for each coupon cleaned.
Trial Results:
Time
Cleaner
Initial wt
Dirty wt
Clean wt.
Initial wt of cont.
Final wt of cont.
%Cont Removed
30 Minutes
Ozzy Juice SW 3
15.7476
17.5817
17.6538
1.8341
1.9062
-3.93
SC Actisolv
15.4629
18.7466
18.7958
3.2837
3.3329
-1.50
SC Maxisolv
15.4258
17.3284
17.0804
1.9026
1.6546
13.03
Method Detergent
n/a
n/a
n/a
n/a
n/a
n/a
7th Generation
15.6309
17.2871
17.2634
1.6562
1.6325
1.43
Dimethyl glutarate
15.9413
18.1324
18.0100
2.1911
2.0687
5.59
Propylene carbonate
15.4282
17.7850
17.8396
2.3568
2.4114
-2.32
Smartsolv 605
15.8378
18.0651
17.7137
2.2273
1.8759
15.78
Time
Cleaner
Initial wt
Dirty wt
Clean wt.
Initial wt of cont.
Final wt of cont.
%Cont Removed
60 Minutes
Ozzy Juice SW 3
15.7476
17.5817
18.8092
1.8341
3.0616
-66.93
SC Actisolv
15.4629
18.7466
17.6775
3.2837
2.2146
32.56
SC Maxisolv
15.4258
17.3284
16.9170
1.9026
1.4912
21.62
7th Generation
15.6309
17.2871
17.2814
1.6562
1.6505
0.34
Dimethyl glutarate
15.9413
18.1324
17.724
2.1911
1.7827
18.64
Propylene carbonate
15.4282
17.7850
17.7864
2.3568
2.3582
-0.06
Smartsolv 605
15.8378
18.0651
17.2678
2.2273
1.4300
35.80
SC Maxisolv, Dimethyl glutarate, and SmartSolv 605 showed visual removal and change in cleaner color at 5min, 15min, 30min, and 1 hour, and increased in effectives with additional immersion time. The remaining cleaners showed some swelling (such as Ozzy Juice SW 3 shown in attached images), which could be contributed to the contaminant absorbing the cleaner, additionally no major removal visually or change in cleaner color were observed.
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
The subsequent testing will include the introduction of heat and agitation in the form of ultrasonics, to further investigate the effectiveness of these evaluated cleaners.
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