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Polyester resin

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Title: Polyester resin  
Author: World Heritage Encyclopedia
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Subject: Polyester, Ronald Davis, Thermosetting plastics, Bulk moulding compound, Sheet moulding compound
Collection: Polyesters, Synthetic Resins, Thermosetting Plastics
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Polyester resin

Polyester resins are polyhydric alcohols. Polyester resins are used in sheet moulding compound, bulk moulding compound and the toner of laser printers. Wall panels fabricated from polyester resins reinforced with fiberglass — so-called fiberglass reinforced plastic (FRP) — are typically used in restaurants, kitchens, restrooms and other areas that require washable low-maintenance walls.

Unsaturated polyesters are benzoyl peroxide or methyl ethyl ketone peroxide.

Polyester resins are thermosetting and, as with other resins, cure exothermically. The use of excessive catalyst can, therefore, cause charring or even ignition during the curing process. Excessive catalyst may also cause the product to fracture or form a rubbery material.

Bio degradation

Lichens have been shown to deteriorate polyester resins, as can be seen in archaeological sites in the Roman city of Baelo Claudia Spain.[1]

See also

References

  1. ^ Francesca Cappitelli; Claudia Sorlini (2008). "Microorganisms Attack Synthetic Polymers in Items Representing Our Cultural Heritage". Applied Environmental Microbiology 74: 564–9.  
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