Polypropylene (PP) was invented in 1954 by Professor Natta and was first produced for the market by Montedison in 1957, under the trade name of Moplen.
It is easy to process, has a low density and is relatively cheap compared to other polymers, and has exceptional chemical resistance to many solvents, bases and acids.
It can be divided into three main groups:
- polipropilene omopolimero (hPP), i cui gradi presentano un’elevata rigidità;
- polipropilene copolimero (cPP), i cui gradi garantiscono un’ottima prestazione antiurto anche a basse temperature.
- polipropilene copolimero random (raco PP), i cui gradi, noti anche come copolimeri statistici, sono trasparenti.
The main applications of polypropylene are the following:
- furniture: garden chairs and tables
- extrusion of pipes
- industrial packaging: bottles for detergents, buckets and basins
PE (Polyethylene): a semi-crystalline polymer belonging to the polyolefin family and like all semi-crystalline polymers it has high chemical resistance (resistance in contact with chemical compounds). It can be polymerised to obtain: Low-Density Polyethylene (LD-PE), High-Density Polyethylene (HD-PE), Linear Low-Density Polyethylene (LLD-PE), Linear Low-Density Polyethylene Metallocene (mLLDPE), Ethylene-Vinyl Acetate (EVA), Ethylene Butyl Acrylate (EBA). There are formulations dedicated to various transformation technologies: injection moulding, extrusion, filming, and blow moulding. Mainly the difference in density between LD-PE and HD-PE leads to an increase in stiffness (HD-PE is stiffer than LD-PE). Used predominantly in packaging, film and container sectors, LD-PE is mainly dedicated to the production of films in both the packaging and industrial sectors. HD-PE, due to its rigidity, is widely used in the production of bottles. The low melting point of EVA and EBA means these polymers are also used as Hot Melt for the production of foam items and various gadgets.
In our catalogue you will find:
- Grinded PP compliant with Italian UNI 10667 MPS – Materia Prima Secondaria (“Secondary Raw Material”) Standards
- Grinded PE compliant with Italian UNI 10667 MPS – Materia Prima Secondaria (“Secondary Raw Material”) Standards