Optimization of PVC-free materials in cables

Contents

Preface

1. Introduction
1.1 Scope
1.2 Follow-up Group
1.3 Project Progress

2. Summary

3. Background

4. Material Properties
4.1 Test Plan
4.2 Selection of Materials
4.3 Test Results
4.3.1 Experimental
4.3.2 Dry Ageing Tests
4.3.3 Wet Ageing Tests
4.3.3.1 Water pH 7
4.3.3.2 Water pH 4
4.3.4 Oil Ageing Tests
4.3.4.1 Effect of Cross Linking on Oil Resistance
4.3.5 Ageing in Cable Vaseline
4.3.6 Ozone Resistance
4.3.7 Stress Cracking Test
4.3.8 UV Ageing Test
4.3.9 Burning Properties
4.3.10 Processing Properties
4.4 Discussion of Results
4.5 Selection of Compounds for Further Studies

5. Processability
5.1 Background
5.2 Strategy
5.3 Initial Rheological Characterization
5.4 Introduction to Computer Simulation
5.5 Mixing Tests
5.5.1 Background
5.5.2 Mixing Experiment
5.6 Computer Simulation in Practice
5.6.1 Rheology - Testing and Modelling
5.6.2 Process Simulation
5.6.3 Test Runs on Extruder
5.6.4 Results and Comments to the Tests
5.6.5 Conclusion on Processing Tests
5.7 Production of Test cables
5.7.1 Optical Test Cables
5.7.1.1 Discussion of Results
5.7.2 Test Production of Power Cable Jacket
5.7.2.1 Extrusion Test Results
5.7.2.2 Discussion of Results
5.7.2.3 Second Extrusion Trial
5.7.2.4 Discussion of Results of the Second Extrusion Trial.

6. Environmental Evaluation of the Selected Materials
6.1 The Summary of the Environmental Evaluation

7. Status for Halogen Free Materials for Cables

8. Conclusion

Appendix

1: Dry ageing tests

2: Ageing in water pH7

3: Ageing in water pH4

4: Ageing in oil

5: Ageing in Cable Vaseline

6: UV ageing tests

8: Extrusion tests - output vs. screw RPM

9: Extrusion tests - Specific Energy Consumption vs. output

10: Environmental aspects of selected compounds for cable production