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Acrylic vacuum formed light box for advertising
Polystyrene (PS) /ËŒpÉ’liˈstaɪriËn/ is a synthetic aromatic hydrocarbon polymer made from the monomer known as styrene.[5] Polystyrene can be solid or foamed. General-purpose polystyrene is clear, hard, and rather brittle. It is an inexpensive resin per unit weight. It is a rather poor barrier to oxygen and water vapour and has a relatively low melting point.[6] Polystyrene is one of the most widely used plastics, the scale of its production being several million tonnes per year.[7] Polystyrene can be naturally transparent, but can be coloured with colourants.
As a thermoplastic polymer, polystyrene is in a solid (glassy) state at room temperature but flows if heated above about 100 °C, its glass transition temperature. It becomes rigid again when cooled. This temperature behaviour is exploited for extrusion (as in Styrofoam ) and also for molding and vacuum forming, since it can be cast into molds with fine detail.
Material Specification
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Polystyrene |
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Names |
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IUPAC name Poly(1-phenylethene) |
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Other names Thermocol |
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Identifiers |
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CAS Number |
9003-53-6 |
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Abbreviations |
PS |
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ChemSpider |
none |
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ECHA InfoCard |
100.105.519 |
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CompTox Dashboard (EPA) |
DTXSID5031925 |
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Properties |
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Chemical formula |
(C8H8)n |
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Density |
0.96–1.05 g/cm3 |
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Melting point |
~ 240 °C (464 °F; 513 K) For Isotactic Polystyrene |
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Boiling point |
430 °C (806 °F; 703 K) and depolymerizes |
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Solubility in water |
Insoluble |
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Solubility |
Soluble in benzene, carbon disulfide, chlorinated aliphatic hydrocarbons, chloroform, cyclohexanone, dioxane, ethyl acetate, ethylbenzene, MEK, NMP, THF |
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Thermal conductivity |
0.033 W/(m·K) (foam, Ï 0.05 g/cm3) |
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Refractive index (nD) |
1.6; dielectric constant 2.6 (1 kHz – 1 GHz) |
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Related compounds |
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Related compounds |
Styrene (monomer) |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references |
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Product Properties
1. Excellent electrical insulation (especially high frequency insulation)
2. Colorless and transparent, light transmittance second only to organic glass.
3. Water resistance.
4. Chemical stability.
5. Easy to color.
Application
Polystyrene is a polymer that is cheap and easy to process. It is the material of choice for many applications including food-packaging, disposable consumer plastic goods as well as parts for optical, electronic/electrical, and medical applications. A large variety of products are formed by injection molding including dining utensils, plastic cups, housewares, toys, CD cases, cosmetic containers, covers and fixtures.
Expandable polystyrene, either crystal polystyrene2 or styrene copolymers soaked with a blowing agent (usually pentane), are used to produce various foamed products, like disposable drinking cups, egg cartons, trays, fast-food containers, cushioned packaging, and thermal insulation for the construction market.
Medical applications include pipettes, Petri dishes and medicine containers.
QA&QC
Hengtuopu get the newest certification--- ISO9001:2015
Have the strict quality control process. Each process will be randomly inspected by quality inspectors to ensure that the products produced in each process meet the standards
1. Material inspection
2. Vacuum forming process
3. CNC machining
4. Post processing
5. Packing
Strategic Partners with Hengtuopu technology
3,800 customers from more than 70 countries in the past 15 years.
http://www.cnthermoformings.com/