I\'m doing a research on the PET \" poly ethylene terephthalate\" material in co

Question

I'm doing a research on the PET " poly ethylene terephthalate" material in construction and especially (recycled PET),, I want to know how appropriate it is for making domes and what is the limitation of the dome span if we use the PET? and if there are any examples of domes made of PET or any plastic materials plz let me know,, and could it be used as an insulation materials in cavity walls? if yes in what form would it be? and what other apllications could it be used for other than PET bricks,, if U have any usefull links plz give me & if U have any idea about this topic please let me know

Explanation / Answer

Material PET (polyethylene terephthalate) PET has good barrier properties against oxygen and carbon dioxide. Therefore, it is utilized in bottles for mineral water. Other applications include food trays for oven use, roasting bags, audio/video tapes as well as mechanical components. PET exists both as an amorphous (transparent) and as a semi-crystalline (opaque and white) thermoplastic material. Generally, it has good resistance to mineral oils, solvents and acids but not to bases. The semi-crystalline PET has good strength, ductility, stiffness and hardness. The amorphous PET has better ductility but less stiffness and hardness. Danish Name PET - thermoplastic polyester Category Plastics, Thermoplastics Products Bottle for mineral water Trays for oven use Oven foils Audio and video tapes Thermo scarf (fleece) Processes Plastic moulding Plastic injection moulding Extrusion Blow moulding Vacuum forming Fibre spinning Similar materials PA (technical applications) PBT (technical applications) PVC (packaging material) PE (packaging material) PS (packaging material) Price High cost plastic (see also Plastics general overview) Environmen- tal notes Creation: Production of 1 kg of PET requires the equivalent of about 2 kg of oil (raw material and energy). Use: It is very inflammable and inflammability can be reduced by the use of additives. Disposal: Incineration in an incineration plant mainly produces water and carbon dioxide. Heating value is equivalent to 1/2 kg of oil. PET can be recycled into fibres that are used for polyester fabrics.

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