ISBN : 978-602-17761-4-8
15
Proceedings of 2
nd
REPTech Crowne Plaza Hotel, Bandung, November 15-17, 2016
© 2016 Published by Center for Pulp and Paper through 2
nd
REPTech
Figure 3. Infrared Spectrum of Cellulose Fabric Blanks
Figure 4. Infrared Spectrum of Cellulose Fabric in Optimal Carboxymethylation Condition
2. The Methylene Blue Absorpted by the Carboxyl Group
To determine the presence of carboxyl groups in the cellulose chain is doing by dyeing process with methylene blue dyestuff, this solution does not have an afinity for pure cellulose, but with the formation
of carboxylate groups causing the cellulose can absorb methylene blue dyes [14] In Table 1 show that the entire treatment variations stain with methylene blue solution. It is identiied
that the hydroxyl group substitution by carboxymethyl groups have taken place, while the amount of dye that is absorbed depends on the amount of carboxymethyl group substitution that occurs in each
treatment variations.
ISBN : 978-602-17761-4-8
16
Proceedings of 2
nd
REPTech Crowne Plaza Hotel, Bandung, November 15-17, 2016
© 2016 Published by Center for Pulp and Paper through 2
nd
REPTech
Table 1. The Absorption of Methylene Blue Dyestuff
Batching Hours
Sodium Hydroxide N
Sodium Chloracetate N 2
3 4
2 6
92.23 93.52
93.97 8
93.15 94.32
94.76 10
94.01 95.20
95.61 12
94.19 95.37
95.73 4
6 92.44
93.96 94.04
8 93.16
94.43 95.33
10 94.09
95.77 96.24
12 94.27
95.82 96.27
6 6
92.66 94.00
94.34 8
93.21 95.44
95.74 10
94.40 95.87
96.52 12
94.53 95.95
96.61 8
6 92.76
94.32 94.37
8 93.27
95.44 95.82
10 94.62
95.96 97.56
12 94.66
96.01 97.72
10 6
93.18. 94.39
94.64 8
94.43 95.77
96.02 10
94.89 96.22
97.81 12
94.91 96.29
97.94 Raw material
staining
From the test results shown that the concentration of sodium chloracetate up to 3N, sodium hydroxide to 8N and batching time up to 2 hours, with the use of higher concentration of sodium hydroxide and the
longer time of batching in a certain extent, the absorption of methylene blue dye is higher. The amount of the dye absorbed on cellulose, not only indicate carboxymethylation reactions that
occur, but also showed the presence of cellulose damage. Degradation of cellulose molecules in the presence of oxygen in sodium hydroxide see igure 2, will enter the molecular chains of cellulose on
the bond between the hydrogen and carbon atoms in position 1 glucose groups, consequently glucose circle will open and a hydrogen atom at position 1 will migration to the carbon atom at position 5,
forming acid group at position 1 but remain bound to the glucose group next to it. The presence of sodium ions in solution resulting ester hydrolyzed form,thus breaking the ester bond resulting in damage
oxycellulose igure 2 which also absorb the methylene blue dyes. [1]
3. Tensile Strength
