# 🧪 Carbopol in glycerin, temperature series (community)

`dataset id: caggioni_carbopol_glycerin_temp`

Equilibrium flow curves of Carbopol in glycerin: 51 points each from 0.001 to 100 s^-1 at 20, 30 and 40 C. The temperature series lets the background viscosity be extracted from TC-model fits and tested against the solvent's Arrhenius law: the fitted background viscosity follows Arrhenius behavior with an activation energy close to literature glycerol. A fourth sweep at 50 C was dropped from the curated set. Originally measured for the rheofit Carbopol-in-glycerin walkthrough.

## 📈 Data

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

## 🗂️ Metadata

| Field | Value |
| --- | --- |
| Material | Carbopol in glycerin |
| Material kind | microgel |
| Source | Unpublished (community contribution) |
| DOI | — |
| Figure | — |
| Measurement type | flow_curve |
| Geometry | not reported |
| Temperature | — |
| Protocol | Equilibrium flow sweeps, 0.001-100 s^-1, 51 points each, on a Peltier plate with 200 s thermal soaks between temperature steps. The 50 C sweep (first step) is omitted. |
| Provenance | community, digitized: no |

## 🧫 Samples

| Sample id | Label |
| --- | --- |
| T_20 | 20 C |
| T_30 | 30 C |
| T_40 | 40 C |

## 📋 Data columns

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

## 🏷️ Tags

`yield-stress` `microgel` `carbopol` `temperature-series` `flow-curve`