We will use them to make quick test models, paint samples, vacuum formed or thermoformed prototypes, or large models that can be created with flat sheets. We have also seen PS used as a sort-of living hinge material typically polypropylene fits best into living hinge applications.
There are clear disposable PS containers e. The hinge in this case is a little different than your traditional PP living hinge. Typically the PS hinge is more of a series of bends that allow the clamshell to flex and open up. Whether it is technically a living hinge or not, it still works very well and can be easily thermoformed. Three major types of polystyrene include polystyrene foam, regular polystyrene plastic, and polystyrene film.
EPS includes the most well-known and common types of polystyrene to include styrofoam and packing peanuts. XPS is a higher density foam typically used in applications like architectural building models. Some types of polystyrene plastic are copolymers. Oftentimes homopolymer PS is fairly brittle and can be made more impact resistant if combined with other materials known in this form as the copolymer High Impact Polystyrene, or HIPS.
Polystyrene film can also be vacuum formed and used in packaging applications. Films can be stretched into oriented polystyrene OPS that is cheaper to produce albeit more brittle than alternatives like PP.
Yo u can read about the process in more depth here. Polystyrene is available in sheet stock, rod stock, and in various shapes. It is a great candidate for subtractive machining processes on a CNC machine. Colors are usually limited to clear, white, and black although colors can be added and it is an excellent candidate for external painting.
We have heard of firms using High Impact Polystyrene HIPS as a filler material for 3D printing available in filament form although we do not typically use it ourselves. Generally speaking polystyrene is non-toxic and odorless. It can be reused in non-foam applications, lightweight concrete, building products and remolded back into EPS foam. With the considerable number of applications, EPS is being used as a result of its excellent range of properties, the future of the EPS industry is bright.
EPS is a cost-effective and friendly polymer best for insulation and packaging purposes. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content. Create a personalised content profile. Measure ad performance. Select basic ads. Create a personalised ads profile.
Select personalised ads. Apply market research to generate audience insights. Measure content performance. Develop and improve products. List of Partners vendors. Share Flipboard Email. Todd Johnson. In , a German apothecary Eduard Simon discovered polystyrene. Although Simon was able to isolate the substance from natural resin, he did not know what he had discovered.
In , Hermann Staudinger published his theories on polymers, stating that natural rubbers were made up of long repetitive chains of monomers that gave rubber its elasticity. He went on to write that the materials manufactured by the thermal processing of styrene were similar to rubber.
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