What is HDPE resin?
What is HDPE resin?
High-density polyethylene (HDPE) or polyethylene high-density (PEHD) is a thermoplastic polymer produced from the monomer ethylene. It is sometimes called “alkathene” or “polythene” when used for HDPE pipes. HDPE is commonly recycled, and has the number “2” as its resin identification code.
Is HDPE the same as resin?
HDPE is a strong, multipurpose resin that many associate with 1-gallon milk containers which use this material in its natural state. Color also can be added for shelf appeal. HDPE has limited chain branching which makes it rigid and less permeable to chemicals.
What is the viscosity of HDPE?
Vendors:
| Physical Properties | Metric | Comments |
|---|---|---|
| Viscosity | 75000 cP @Shear Rate 5000 1/s, Temperature 190 °C | Apparent Dynamic Viscosity |
| 160000 cP @Shear Rate 1000 1/s, Temperature 190 °C | Apparent Dynamic Viscosity | |
| 250000 cP @Shear Rate 300 1/s, Temperature 190 °C | Apparent Dynamic Viscosity | |
| Melt Flow | 12 g/10 min @Load 2.16 kg |
Is HDPE resin safe?
Like PET, HDPE is a frequently used, safe plastic container. It’s denoted by a number 1 on plastic containers. HDPE products are safe and are not known to transmit any chemicals into foods or drinks, making this plastic a low health risk variety, according to Chemical Safety Facts.
What is HDPE plastic used for?
High Density Poly Ethylene (HDPE) is a thermoplastic polymer made from petroleum. As one of the most versatile plastic materials around, HDPE plastic is used in a wide variety of applications, including plastic bottles, milk jugs, shampoo bottles, bleach bottles, cutting boards, and piping.
What are the disadvantages of HDPE?
The Disadvantages of HDPE Include
- Poor Weathering.
- Highly Flammable.
- Sensitive to Stress Cracking.
- Not Biodegradable.
- Can’t Be Composted.
- Not Resistant to Oxidizing Acids.
- Not Resistant to Chlorinated Hydrocarbons.
- High Thermal Expansion.
How can you tell if plastic is HDPE?
High-density polyethylene, also known as HDPE, is a strong plastic used to make jugs and bottles for short-term storage. To determine if a container is made form HDPE, look for a number 2 inside the three-arrow recycling symbol.
What is the viscosity of polyethylene?
Also, mainly at low frequencies, polyethylene had the higher values of storage modulus (325 Pa), loss modulus (937 Pa) and complex viscosity (9,740 Pa. s).
What is the melting point of HDPE?
110-130 degrees Celsius
Thermoplastic materials become liquid at their melting point (110-130 degrees Celsius in the case of LDPE and HDPE respectively).
Are HDPE fumes toxic?
Inhalation: Inhalation of fine particles may cause respiratory irritation. Fumes produced while thermal processing may cause irritation, pulmonary edema and a possible asthma-like response. Environmental Hazards: Polyethylene is an essentially biologically inert solid and considered non-toxic.
At what temperature does HDPE Leach?
Thermally degraded pipe samples in laboratory experiments include the (d) PEX-c pipe degraded at 300 °C, (e) HDPE pipe degraded at 300 °C, and (f) HDPE pipe degraded at 400 °C.
Who Uses HDPE plastic?
