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Comparative Application of EEP, MMP, and PMA in Polyaspartic Polyurea Resin Systems (Part 1)

Experimental Objective

To compare the solubility of novel solvents EEP/MMP versus traditional solvent PMA for polyaspartic polyurea resins, evaluating their application potential.

Experimental Data Analysis

Test 1: Solubility of EEP, MMP, and PMA in Polyaspartic Polyurea Resin F420

Using EEP, MMP, or PMA as solvents, polyaspartic polyurea resin F420 was dissolved at solvent mass fractions of 10%, 20%, 30%, and 40%. Viscosity curves were measured to analyze solvent solubility for F420.

Figure 1: Comparative Solubility Curves of EEP, MMP and PMA in Resin F420
Figure 1: Comparative Solubility Curves of EEP, MMP and PMA in Resin F420

As can be seen from Figure 1, the ranking of dissolution capacity of the three single solvents for polyaspartic polyurea resin F420 is: MMP > EEP > PMA. The solubility comparison curves further illustrate that with increasing proportion (10%-40%), the viscosity curves of the novel solvents EEP, MMP and the traditional solvent PMA progressively converge, meaning the viscosity gap gradually decreases.

Test 2: Solubility of EEP, MMP, and PMA in Polyaspartic Polyurea Resin F520

Using EEP, MMP, or PMA as solvents, polyaspartic polyurea resin F520 was dissolved at solvent mass fractions of 10%, 20%, 30%, and 40%. Viscosity curves were measured to analyze solvent solubility for F520.

Figure 2: Comparative Solubility Curves of EEP, MMP and PMA in Resin F520
Figure 2: Comparative Solubility Curves of EEP, MMP and PMA in Resin F520

As can be seen from Figure 2, the ranking of dissolution capacity of the three single solvents for polyaspartic polyurea resin F520 is: MMP > EEP > PMA. Combined with the solubility comparison curves, it can be more intuitively observed that with increasing proportion (10%-40%), the viscosity curves of the novel solvents EEP, MMP and the traditional solvent PMA progressively converge, meaning the viscosity gap gradually decreases.

Test 3: Solubility of Composite Solvents in Polyaspartic Polyurea Resin F420

EEP, MMP, and PMA were respectively formulated into compound solvent systems with the ratio EEP/MMP/PMA : Xylene : n-Butyl Acetate = 4:3:3. These three formulated compound solvents were then used to dissolve the polyaspartic resin F420 at proportions of 10%, 20%, 30%, and 40%. Viscosity changes were tested to analyze the dissolution capacity of the compound solvents for F420.

Figure 3: Comparative Solubility Curves of Composite Solvents in Resin F420
Figure 3: Comparative Solubility Curves of Composite Solvents in Resin F420

As can be seen from Figure 3, the compound solvent systems of novel solvents EEP and MMP exhibit marginally superior solubility for F420 resin compared to the traditional solvent PMA, with the solubility hierarchy being: MMP > EEP > PMA.

Figure 4: Comparative Solubility Curves of EEP, MMP, PMA and Their Composite Solvents in Resin F420
Figure 4: Comparative Solubility Curves of EEP, MMP, PMA and Their Composite Solvents in Resin F420

As can be seen from Figure 4, whether for the novel solvents EEP, MMP, or the traditional solvent PMA, their compound solvent systems exhibit superior solubility for F420 resin compared to their respective single solvents.

Experimental Conclusions

  1. Both single and composite solvent systems of EEP/MMP show better performance than PMA in polyaspartic polyurea resin.
  2. Composite solvent systems significantly outperform single solvents in dissolution efficacy.

For more information about functional solvents, please visit: PREC EEP Solvent and PREC MMP Solvent.

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