KEY CONCEPTS OF PLASTICS AND TEXTILES

-  Both natural and synthetic fibres can be woven to make a variety of textiles.

- Natural fibres may come from animal sources (wool, silk), plant sources (cotton, linen, esparto, bamboo) and mineral sources (gold, silver and copper fibres).

- Synthetic fibres, such as nylon, polyester, rayon and Lycra, are plastic materials.

(LYCRA)

KEY CONCEPTS OF PLASTICS AND TEXTILES

- Modification techniques use tools and machines to make changes to prefabricated materials, such as sheets, bars or mouldings.
- Examples of these techniques include: measuring - drawing marks and lines - cutting - drilling - filing and sanding - joining.

-  You must always pay special attention to health and safety rules.

KEY CONCEPTS OF PLASTICS AND TEXTILES

- Various industrial techniques can be used to manufacture plastic products, such as: extrusion, calendering, vacuum forming and moulding.

- The main techniques for using moulds are as follows: blow moulding, injection moulding and compression moulding.

(BLOW MOULDING)

KEY CONCEPTS OF PLASTICS AND TEXTILES

-Thermoplastics are usually made from petroleum products. The most common thermoplastics are:

 • Polyethylene terephthalate (PET).

 • High-density polyethylene. 

 • Polyvinyl chloride (PVC). 

 • Low-density polyethylene. 

 • Polypropylene.

 • Moulded polystyrene. 

 • Expanded polystyrene or Styrofoam.

(PET)         

- Thermosetting plastics are made from petroleum products. They include: 

• Polyurethane.

• Bakelite. 

• Melamine. 

• Polyester resins.

(MELAMINE)

- Typical elastomers include rubber and neoprene.

KEY CONCEPTS OF PLASTICS AND TEXTILES

- Plastics consist of long chains of atoms which are mostly composed of carbon.










- Plastics be classified into natural and synthetic plastics.

- The process of manufacturing plastic is called polymerisation.

- Plastic materials are resistant, insulating (against electricity, heat and sound), ductile, malleable, impermeable and light.

- There are three types of plastic recycling processes: chemical and mechanical recycling and energy recovery.