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       #Post#: 30--------------------------------------------------
       Some Knowledge about Expanded Polystyrene that We Should Know
       By: INTCOrecycling Date: March 15, 2018, 8:42 pm
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       Expanded polystyrene (EPS), also known as polystyrene and
       styrenic copolymer, is a mixture of resin and physical blowing
       agents and other additives. The most common expandable
       polystyrene is a transparent PS pellet containing pentane as a
       blowing agent. There are several specific steps for making
       foamed plastic products from expandable polystyrene, which is
       also a feature of many plastic resins, including polyolefins and
       their copolymers of moldable foams.
       Expanded polystyrene can be used to make a variety of products
       such as coffee cups, energy-absorbing car shock absorbers or
       foam blocks. EPS is the main material of disposable beverage
       cups, seismic packaging and insulation materials.
       Expandable polystyrene is a small granular resin, the diameter
       is generally 0.254mm ~ 2.54mm. Most of these particles are beads
       produced by suspension polymerization, and larger diameter
       particles can also be obtained by pelletizing.
       The performance of the foam product depends on the raw polymer,
       but is greatly influenced by the density of the foam. A density
       of 0.016 PS foam products, of which 97% of the volume is air,
       the mechanical properties of this product is poor. The air
       contained in the foam is divided into millions of cells, and
       their presence makes the polymer foam material have many
       valuable properties. These features include thermal insulation,
       energy absorption, floatability, high stiffness or mass ratio,
       and low cost per unit volume.
       Thermal insulation products using EPS because of its low thermal
       conductivity, low density and low processing costs. EPS cup is
       due to EPS easy to foam into thin products and with insulation.
       The shock absorption, low cost and formability of the foam make
       EPS a choice of protective packaging material.
       Foam polyolefin products absorb more impact per unit thickness,
       so it can be used as a packaging for more fragile items and
       shock absorbers for shock absorbers such as some new cars.
       However, the expanded polystyrene are disposable, which can
       easily become the white pollution, so recycle eps is very
       necessary to protect our environment. And then we can reuse it
       to do some other products.
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