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High-Density Polyethylene Properties and Applications
en.wikipedia.org/wiki/High-density_polyethyleneYapay zekadan makale özeti
- Basic Properties
- HDPE is a thermoplastic polymer produced from ethylene monomer
- Has density ranging from 930 to 970 kg/m³
- Stronger than LDPE with tensile strength of 38 MPa versus 21 MPa
- Resistant to solvents and withstands temperatures up to 120°C
- Production Methods
- Synthesized through Ziegler-Natta or Phillips slurry processes
- Processing determines molecular structure and properties
- Different molding methods used for various applications
- Applications
- Most important use is in milk bottles and jugs (8 million tonnes)
- Widely used in pipes for drinking and waste water
- Applied in geomembranes, cable insulation, and fireworks
- Used in medical devices and construction materials
- Market and Growth
- Global HDPE market reached over 30 million tons in 2008
- Growing market in China for rigid packaging
- Used in infrastructure expansion in emerging nations
- Preferred over PVC and polycarbonate due to environmental concerns