# 🧪 Wormlike-micelle + polymer surfactant system, temperature series (community)

`dataset id: caggioni_wlm_polymer_temp_series`

Equilibrium flow curves of a mixed surfactant system - wormlike micelles (WLM) plus a polymer solution: 41 points each from 0.01 to 100 s^-1 at 18, 20, 22, 24, 26 and 28 C, plus a repeat at 18 C. The curves carry at least two distinct relaxation times (a fast WLM mode and a slow polymer mode); a single Carreau model cannot bend twice, making this the benchmark dataset for two-mode (carreau-carreau) fits. Parameters evolve smoothly with temperature and the WLM mode fades at 26-28 C. Originally measured for the rheofit carreau-carreau walkthrough.

## 📈 Data

![Data for caggioni_wlm_polymer_temp_series](_plots/caggioni_wlm_polymer_temp_series.png)

## 🗂️ Metadata

| Field | Value |
| --- | --- |
| Material | Wormlike micelles + polymer surfactant system |
| Material kind | micellar solution |
| Source | Unpublished (community contribution) |
| DOI | — |
| Figure | — |
| Measurement type | flow_curve |
| Geometry | not reported |
| Temperature | — |
| Protocol | Equilibrium flow sweeps, 0.01-100 s^-1, 41 points each, at 18-28 C plus an 18 C repeat. |
| Provenance | community, digitized: no |

## 🧫 Samples

| Sample id | Label |
| --- | --- |
| T_18 | 18 C |
| T_20 | 20 C |
| T_22 | 22 C |
| T_24 | 24 C |
| T_26 | 26 C |
| T_28 | 28 C |
| T_18_repeat | 18 C (repeat) |

## 📋 Data columns

| Role | Column | Units |
| --- | --- | --- |
| `x` | `shear_rate_1/s` | 1/s |
| `y` | `stress_Pa` | Pa |
| `sample` | `sample_id` | — |

## 🏷️ Tags

`polymer solution` `wormlike micelles` `temperature-series` `flow-curve`