High Density Polyethylene (HDPE)
We only work with the best qualities:
All our bins are made of high density polyethylene. It is the ideal manufacturing material for retaining and controlling hazardous and/or chemical substances because, in addition to being a very economical plastic, it has the following technical specifications:
High density polyethylene (HDPE):
High density polyethylene is a polymer that is characterized by:
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- Excellent thermal and chemical resistance.
- Very good impact resistance.
- It is solid, colorless and easy to apply any desired color.
- Very good processability, i.e. it can be processed by the forming methods used for thermoplastics, such as injection and extrusion.
- It is flexible, tough and very light.
- It is more rigid than low density polyethylene.
- It is easy to print, paint or glue on.
- Its density is around 0.940 - 0.970 g/cm3.
- It is not attacked by acids, a maximum working resistance of 60°C is considered for liquids, because at higher temperatures the useful life is reduced.
- It is much better for mechanical and thermal recycling.
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What is the temperature resistance of high density polyethylene?
Thermal Stability: In the complete absence of oxygen, polyethylene is stable up to 290 °C. Between 290 and 350 ºC, it decomposes and gives lower molecular weight polymers, which are usually thermoplastics or waxes, but little ethylene is produced.
High-density polyethylene (HDPE) is an unbranched straight-chain polymer. It is harder, stronger and slightly heavier than low-density polyethylene, but is less ductile. Polyethylene with a molecular weight between 3,000,000 and 6,000,000,000 is called UHMWPE (Ultra High Molecular Weight Polyethylene). This material is used to produce fibers that are so strong that they can be used to make bulletproof vests.
Obtaining High Density Polyethylene:
HDPE is obtained by a Ziegler-Natta polymerization process, which is a catalytic polymerization process (Ziegler-Natta catalyst). There are three major commercial processes used in the polymerization of HDPE: solution, suspension and gas phase processes.
The catalysts used in the manufacture of HDPE are generally of the transition metal oxide or Ziegler-Natta type. In this process a solvent is used which dissolves the monomer, the polymer and the polymerization initiator. By diluting the monomer with the solvent, the polymerization rate is reduced and the heat released by the polymerization reaction is absorbed by the solvent. Benzene or chlorobenzene can generally be used as solvents.
In bulk polymerization, only the monomer is polymerized, usually in a gas or liquid phase, although some solid state polymerizations are also carried out. This is a direct polymerization of monomers into a polymer, in a reaction in which the polymer remains soluble in its own monomer. Additionally, with Phillips catalysts (chromium trioxide), HDPE with very high density and straight chains is produced.
Advantages of PEHD:
A product made of polyethylene offers a number of important advantages over conventional systems:
-Minimal frictional load losses.
-It is not attacked in any way by corrosion.
-Absence of sediments and incrustations in its interior.
-Flexibility and elasticity.
-It does not maintain permanent deformations.
-Reduced weight, making it easy to transport.
-Longer lengths, which reduces the number of joints (lower cost) and reduces the possibility of human failure in the installation.
-Long service life due to mechanical strength and ductility.
-Lower acquisition and installation cost.
-Resistant to bacteria and chemicals.
-Polyethylene also has among its advantages that it is a recyclable product, which means that it can be used by third parties to manufacture, for example, plastic pallets, ornamental chairs, plastic flowerpots, etc.
[For more information about the history and characteristics of High Density Polyethylene: tecnologiadelosplasticos.blogspot.com]
What substances are compatible with polyethylene?
What chemicals does polyethylene resist?
Below is a table of substances and chemicals compatible with our retention basins, drip pans, safe transfer stations and retention floors:
Table of compatibilities with Polyethylene
| Table of compatibilities with Polyethylene | ||||
|---|---|---|---|---|
| Aceite de Parafina | Ácido Propionico 50% | Clorhidrato de Hidracina | Hidróxido de Amonio | Sol. Sat. De Ácido Cianhídrico |
| Acetaldehído 40% | Ácido Selénico | Clorobenceno | Hidróxido de Calcio | Sol. Sat. De Ácido Crómico |
| Acetamida | Ácido Silícico | Cloroetanol | Hidróxido de Magnesio | Sol. Sat. De Bromuro de Cinc |
| Acetato Amílico | Ácido Succínico | Cloroformiato de Bencilo | Hidróxido de Potasio | Sol. Sat. De Cloruro de Cinc |
| Acetato de Amonio | Ácido Sulfúrico 50% | Cloruro de Amonio | Hidróxido de Sodio Con. | Sol. Sat. De Cloruro Férrico |
| Acetato de Butilo | Acrilato Sódico | Cloruro de Bario | Hipoclorito de Sodio | Sol. Sat. De Nitrato Férrico |
| Acetato de Isopropilo | Acrilonitrilo | Cloruro de Calcio | Isopropanol | Sol. Sat. De Sulfato Férrico |
| Acetato Metílico | Agentes de Adherencia de
Soldadura |
Cloruro de Potasio | Líquido de Batería, Ácido | Sol. Sat. Dextrina |
| Acetato Sódico sol. Sat. | Álcalis Acuosos (NaOh) | Cloruro de Sodio | Mercurio | Sol. Sat. Dextrosa |
| Acetona | Alcohol Alílico 96% | Cresol 90% | Metanol | Sol. Sat. Fluoruro de Sodio |
| Ácido Acetico 10% | Alcohol Amílico | Cromato de Potasio | Monóxido de Carbono | Sol. Sat. Fosfato Trisódico |
| Ácido Adípico | Alcohol Bencílico | Cromato de Sodio | Morfolín | Sol. Sat. Hidróxido de Bario |
| Ácido Arsénico | Alcohol de Butilo | Diamina de Etileno Benceno | Mowilith D | Sol. Sat. Metafosfato de Amonio |
| Ácido Asorbico 10% | Alcohol Etílico | Dicloruro de Propileno | Nicotina Diluida | Sol. Sat. Nitrato de Amonio |
| Ácido Benzoico | Alcohol Isopropilo | Dicromata de Potasio 40% | Nitrato de Bario | Sol. Sat. Nitrato de Hierro (III) |
| Ácido blanco 75% | Alcohol Metílico | Dioxano | Nitrato de Calcio 50% | Sol. Sat. Nitrato de Potasio |
| Ácido Bórico Concentrado | Alcohol Propargílico 7% | Disulfito de Sodio | Nitrato de Cobre | Sol. Sat. Perborato de Potasio |
| Ácido Bórico Diluído | Alcohol Propílico | Ditionito de Sodio | Nitrato de Magnesio | Sol. Sat. Persulfato de Potasio |
| Ácido Butírico | Aldehído Crotónico | Electrólito | Nitrato de plata | Sol. Sat. Solución de Almidón |
| Ácido Carbónico (Aq. C02) | Alumbre (aqu.sol) | Emulsiones de Parafina | Nitrato de Sodio | Sol. Sat. Sulfato de Aluminio |
| Ácido Cítrico 25% | Amina Metílica 32% | Etanol | n-Octano | Sol. Sat. Sulfato de Bario |
| Ácido Clórico 10% | Amoníaco (100% Gas Seco) | Éteres del Glicol | Octyl Cresol | Sol. Sat. Sulfato de Calcio |
| Ácido Cloroacético | Amoníaco (Anhidro) | Etileno Chlorohydrin | Oxalato de Sodio | Sol. Sat. Sulfato de Hierro (II) |
| Ácido Cresílico | Amoníaco (aqu.sol.) | Extractos Tánico | Óxido de Magnesio | Sol. Sat. Sulfato de Hierro (III) |
| Ácido Diglicolico 30% | Amónico 50% | Ferrocianuro de Sodio | Óxido de Propileno | Sol. Sat.Carbonato de Bario |
| Ácido Esteárico | Anhídrido Ftálico | Fluoruro de Aluminio | Pentoxido de Fósforo | Sol. Soda Cáustica 10% |
| Ácido Fluoborico | Benzaldehído | Fluoruro de Hidrógeno | Perclorato de Potasio | Sol.Hidrógeno Aluminio 10% |
| Ácido Fluorhídrico 40% | Benzoato de Sodio | Fluoruro de Potasio | Permanganato de Potasio | Sol.Sat. Sulfuro de Amonio |
| Ácido fluosilícico | Bicarbonato de Sodio | Formaldehido 40% | Peróxido de Hidrógeno 90% | Sol.Sat.Ferrocianuro de Sodio |
| Ácido Fórmico | Bicromato de Potasio | Formamida | Persulfato de Sodio | Sol.Sat.Persulfato Amonio |
| Ácido Fosfórico 50% | Bifluoruro de Amonio | Fosfato de Amonio | Plomo Tetraetilo | Sol.Sat.Tiocianato de Amonio |
| Ácido Ftálico | Bisulfito de Sodio | Fosfato de Sodio | Potasa | Sulfato de Cinc |
| Ácido Glicólico | Blanqueador Clorox | Fosfato de Tributilo | Potasio/Aluminio | Sulfato de Cobre |
| Ácido Glucónico | Borato de Potasio 10% | Fosfato Disódico | Propanol | Sulfato de Hidroxilamina |
| Ácido Hidrobrómico 50% | Bromuro de Hidrógeno 10% | Fosfatos de Potasio | Sales de Antimonio | Sulfato de Magnesio |
| Ácido Hidroclórico 36% | Bromuro de Potasio | Fósforo Amarillo | Sales Férricas | Sulfato de Metilo |
| Ácido Hidrofluorosilícico | Bromuro de Sodio | Fostato de Tricresilo | Sat. Sol. Carbonato de Calcio | Sulfato de Potasio |
| Ácido hidroiodico | Butadieno | Furfural | Silicato de Sodio | Sulfato de Sodio |
| Ácido Hipocloroso | Butanediol | Glicerina | Sol. Ácido Tánico | Sulfato Ferroso |
| Ácido Láctico (todo conc.) | Butanol | Glicol | Sol. De Levadura | Sulfatos 50% |
| Ácido Maleico | Butileno Glicol | Glicol de Dietileno | Sol. Hipoclorito de Calcio | Sulfonatos de Sodio |
| Ácido Málico 1% | Carbonato de Amonio 50% | Glicol de Etileno | Sol. Potasa Cáustica 50% | Sulfuro |
| Ácido Metil Sulfúrico | Carbonato de Dietilo | Glicol de Propileno | Sol. Pulpa de Fruta | Sulfuro de Bario |
| Ácido Monocloroacético Ester Ethyl | Carbonato de Magnesio | Heptano | Sol. Sat. Acetato de Plomo | Sulfuro de Hidrógeno |
| Ácido Monocloroacético Ester Methyl | Carbonato de Sodio | Hexanel Tert | Sol. Sat. Ácido Gálico | Sulfuro de Sodio |
| Ácido Muriático | Cáustico (acuoso) | Hexano | Sol. Sat. Ácido Tartárico | Tiosulfato de Sodio |
| Ácido Nicotínico | Cianuro de Bario | Hidracina 35% | Sol. Sat. Alumbre de Cromo | Tricloruro de Antimonio 90% |
| Ácido Nítrico 25% | Cianuro de Cobre | Hidrato de Cloral | Sol. Sat. Bisulfato de Sodio | Trietanolamina |
| Ácido Oléico | Cianuro de Potasio | Hidrato de Hidracina | Sol. Sat. Cloruro Cuproso | Urea |
| Ácido Ortofosfórico 50% | Ciclohexanol | Hidrocarbones Alifáticos | Sol. Sat. Cloruro de aluminio | Yodo (alc. Sol.) Conc. |
| Ácido Oxálico | Ciclohexeno | Hidrógeno Fosforado 100% | Sol. Sat. Cloruro de Níquel | Yoduro de Potasio |
| Ácido Perclórico 20% | Clorato de Potasio | Hidrosulfito 10% | Sol. Sat. Cloruro Hierro (II) | Yoduro de Sodio |
| Ácido Pícrico 1% | Clorato de Sodio | Hidróxido de Aluminio | Sol. Sat. Cloruro Hierro (III) | |
Catálolgo de Cubetos de Retención en Polietileno Inteco Astur 2019.
