Acid polyacrylic PAK-37
TU 6-02-137-91 from rev. 1
It is a 37% aqueous polymer solution.
It is used in dentistry as a liquid for mixing dental zinc polycarboxylate cement.
When using polyacrylic acid PAK-37 polycarboxylate cement:
- easily kneaded,
- fills the cavity of the tooth well,
- has a sufficiently high strength.
Technical specifications
| Appearance |
Colorless or light
yellowish liquid |
| Mass fraction of residual monomer,%, not more than |
0,3 |
Dynamic viscosity (according to Hepler) at 20 deg.C, Pa * s
|
4,0 + 8,0 |
| Mass fraction of polyacrylic acid in solution,% |
36 + 38 |
Physico-mechanical properties of polycarboxylate cement obtained on the basis of PAK-37
| Working time at a temperature of 18 + 25 ° C, min, not less than |
2,0 |
| Curing time at 37 ° C, min, not less than |
9,0 |
| Breaking strength, MPa |
50 |
| Solubility after 24 hours,%, not more than |
0,2 |
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