Structural Foam Trolley Base

Abstract

The moulded plastic product described in this study is an example of a recently developed class of mouldings referred to as ‘structural foams’ (SF) and described in detail in Chapter 7, PST 2. Structural foams were first introduced in 1967 when they were announced by BXL Ltd, at the Plastics Exhibition in London, but are now firmly established in the range of processing methods used to form plastics articles. Typical products being made in SF are trays, stacking containers, tanks, pallets, motor-truck fan shrouds, garden cold frames, coffee tables, chair and settee frames and various electrical equipment housings. As we have already seen (Chapter 7), the moulded SF product has several inherent properties that differ markedly from its solid, i.e. ‘compact’, plastic injection moulded counterpart.