Table 2.
DSC data of PVC containing 1.5 phr SP with different SMA contents.
| Sample | Tm2/°C | Tm1/°C | ΔHm2/J·g−1 | ΔHm1/J·g−1 | |
|---|---|---|---|---|---|
| PVC | 146.2 | 188.5 | 1.5 | 0.9 | 4.6% |
| PVC-1.5phrPA12 | 167.0 | 193.0 | 2.7 | 2.5 | 9.9% |
| PVC-1.5phrSP3% | 163.1 | 191.8 | 2.8 | 2.8 | 10.7% |
| PVC-1.5phrSP6% | 161.5 | 191.5 | 3.1 | 3.2 | 11.6% |
| PVC-1.5phrSP9% | 161.0 | 190.9 | 2.5 | 2.8 | 10.1% |
| PVC-1.5phrSP12% | 163.0 | 189.8 | 2.4 | 2.3 | 9.0% |
where Tm1 is the melting peak of primary crystallization, Tm2 is the melting peak of secondary crystallization, ΔHm1 is the enthalpy of melting of primary crystallization, and ΔHm2 is the enthalpy of the melting for secondary crystallization.