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THERMOSETTING PLASTICS
Thermosetting plastics cannot be remelted or reshaped once formed because their molecules are strongly cross-linked in three dimensions. Examples include epoxy, polyurethane, melamine formaldehyde, and urea formaldehyde. In contrast, thermoplastics can be remelted and reshaped multiple times for recycling, but their quality degrades with each reshaping. Common uses of thermosetting plastics include glues, plastics, electrical insulators, and boat hulls.
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Similar to THERMOSETTING PLASTICS
THERMOSETTING PLASTICS
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- 2. What are thermosettingWhatare thermosetting plastics?plastics? Once heated and moulded, these plastics cannot be reheated and remoulded. The molecules of these plastics are cross linked in three dimensions and this is why they cannot be reshaped or recycled. The bond between the molecules is very strong.
- 3. Epoxy.Epoxy. Water and heatresistant.
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- 5. Melamine Formaldehyde. Melamine Formaldehyde. Smoothsurface and hygienic qualities.
- 6. Urea Formaldehyde.Urea Formaldehyde. Schratchresistant and a very good electrical insulator.
- 7. Polyester resins.Polyester resins. Lightnessand toughness.
- 8. thermosetting plastics andthermosettingplastics and thermoplastics:thermoplastics: Thermosetting plastics once heated and formed to a shape,cannot be reheated and reformed. Consequently, they tend to be difficult to recycle. Thermoplastics once heated and formed to a shape, can be reheated and reshaped. Every time they are reshaped, the quality of the thermoplastic tends to be reduced. They are recyclable.
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