Investigations of polyethylene of raised temperature resistance service performance using autoclave test under sour medium conditions
| Autor: | Dongtao Qi, Houbu Li, Kong Lushi, Hongxia Yan, Ding Han, Qi Guoquan |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Polymers and Plastics General Chemical Engineering Metallurgy chain 02 engineering and technology Polyethylene 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Autoclave stress swelling chemistry.chemical_compound TP1080-1185 plastic chemistry Raised temperature Polymers and polymer manufacture Physical and Theoretical Chemistry 0210 nano-technology degradation |
| Zdroj: | e-Polymers, Vol 21, Iss 1, Pp 346-354 (2021) |
| ISSN: | 1618-7229 |
| DOI: | 10.1515/epoly-2021-0029 |
| Popis: | The chapter deals with the performance evaluation of the polyethylene of raised temperature resistance (PE-RT) and polyethylene (PE) using autoclave test under sour oil and gas medium conditions. The analyses of performance changes showed that PE-RT has good media resistance at 60°C. As the temperature increases, its mechanical properties decrease, accompanied by an increase in weight. Comparative analyses showed that no matter what temperature conditions are, PE-RT media resistance is better than PE80. The better media resistance of PE-RT depends on its higher degree of branching. Short branches are distributed between the crystals to form a connection between the crystals, thereby improving its heat resistance and stress under high-temperature conditions. PE-RT forms an excellent three-dimensional network structure through copolymerization, ensuring that it has better media resistance than PE80. However, the mechanical performance will be attenuated due to the high service temperature. |
| Databáze: | OpenAIRE |
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