High Impact Styrene Sheet Buy
High impact styrene (HIPS) sheets have a good combination of dimensional strength, impact resistance and heat resistance. It is also non-toxic, odorless, easy to fabricate and machine. These characteristics make high impact styrene a popular choice for model building, sign making, POP displays, and non-load bearing applications.
high impact styrene sheet buy
Acme Plastics' high impact styrene sheets come in black and white color options as well as a variety of thicknesses ranging from .02"-1/4". Standard sheet size is 48" x 96" with custom cut option available.
HIPS (High Impact Polystyrene), also known as PS (Polystyrene), is an amorphous thermoplastic material, used in lower heat applications. It is categorized as a standard material, and offers ease of processing, high impact strength, and stiffness.
The material's properties are determined by short-range van der Waals attractions between polymers chains. Since the molecules consist of thousands of atoms, the cumulative attractive force between the molecules is large. When heated (or deformed at a rapid rate, due to a combination of viscoelastic and thermal insulation properties), the chains can take on a higher degree of confirmation and slide past each other. This intermolecular weakness (versus the high intramolecular strength due to the hydrocarbon backbone) confers flexibility and elasticity. The ability of the system to be readily deformed above its glass transition temperature allows polystyrene (and thermoplastic polymers in general) to be readily softened and molded upon heating. Extruded polystyrene is about as strong as an unalloyed aluminium but much more flexible and much less dense (1.05 g/cm3 for polystyrene vs. 2.70 g/cm3 for aluminium).[23]
The process of depolymerizing polystyrene into its monomer, styrene, is called pyrolysis. This involves using high heat and pressure to break down the chemical bonds between each styrene compound. Pyrolysis usually goes up to 430 C.[26] The high energy cost of doing this has made commercial recycling of polystyrene back into styrene monomer difficult.[citation needed]
In 2016, it was also reported that superworms (Zophobas morio) may eat expanded polystyrene (EPS).[30] A group of high school students in Ateneo de Manila University found that compared to Tenebrio molitor larvae, Zophobas morio larvae may consume greater amounts of EPS over longer periods of time.[31]
Water-logging commonly occurs over a long period in polystyrene foams that are constantly exposed to high humidity or are continuously immersed in water, such as in hot tub covers, in floating docks, as supplemental flotation under boat seats, and for below-grade exterior building insulation constantly exposed to groundwater.[60] Typically an exterior vapor barrier such as impermeable plastic sheeting or a sprayed-on coating is necessary to prevent saturation.
Oriented polystyrene (OPS) is produced by stretching extruded PS film, improving visibility through the material by reducing haziness and increasing stiffness. This is often used in packaging where the manufacturer would like the consumer to see the enclosed product. Some benefits to OPS are that it is less expensive to produce than other clear plastics such as polypropylene (PP), (PET), and high-impact polystyrene (HIPS), and it is less hazy than HIPS or PP. The main disadvantage of OPS is that it is brittle, and will crack or tear easily.
By using a statistical copolymer at this position, the polymer becomes less susceptible to cross-linking and flows better in the melt. For the production of SBS, the first styrene is homopolymerized via anionic copolymerization. Typically, an organometallic compound such as butyllithium is used as a catalyst. Butadiene is then added and after styrene again its polymerization. The catalyst remains active during the whole process (for which the used chemicals must be of high purity). The molecular weight distribution of the polymers is very low (polydispersity in the range of 1.05, the individual chains have thus very similar lengths). The length of the individual blocks can be adjusted by the ratio of catalyst to monomer. The size of the rubber sections, in turn, depends on the block length. The production of small structures (smaller than the wavelength of the light) ensure transparency. In contrast to PS-I, however, the block copolymer does not form any particles but has a lamellar structure.
Most polystyrene products are currently not recycled due to the lack of incentive to invest in the compactors and logistical systems required. Due to the low density of polystyrene foam, it is not economical to collect. However, if the waste material goes through an initial compaction process, the material changes density from typically 30 kg/m3 to 330 kg/m3 and becomes a recyclable commodity of high value for producers of recycled plastic pellets. Expanded polystyrene scrap can be easily added to products such as EPS insulation sheets and other EPS materials for construction applications; many manufacturers cannot obtain sufficient scrap because of collection issues. When it is not used to make more EPS, foam scrap can be turned into products such as clothes hangers, park benches, flower pots, toys, rulers, stapler bodies, seedling containers, picture frames, and architectural molding from recycled PS.[99] As of 2016, around 100 tonnes of EPS are recycled every month in the UK.[100]
If polystyrene is properly incinerated at high temperatures (up to 1000 C[102]) and with plenty of air[102] (14 m3/kg[citation needed]), the chemicals generated are water, carbon dioxide, and possibly small amounts of residual halogen-compounds from flame-retardants.[102] If only incomplete incineration is done, there will also be leftover carbon soot and a complex mixture of volatile compounds.[103][better source needed] According to the American Chemistry Council, when polystyrene is incinerated in modern facilities, the final volume is 1% of the starting volume; most of the polystyrene is converted into carbon dioxide, water vapor, and heat. Because of the amount of heat released, it is sometimes used as a power source for steam or electricity generation.[102][104]
Like other organic compounds, polystyrene is flammable. Polystyrene is classified according to DIN4102 as a "B3" product, meaning highly inflammable or "Easily Ignited". As a consequence, although it is an efficient insulator at low temperatures, its use is prohibited in any exposed installations in building construction if the material is not flame-retardant.[citation needed] It must be concealed behind drywall, sheet metal, or concrete.[117] Foamed polystyrene plastic materials have been accidentally ignited and caused huge fires and losses of life, for example at the Düsseldorf International Airport and in the Channel Tunnel (where polystyrene was inside a railway carriage that caught fire).[118]
High Impact Polystyrene is a very tough and rigid plastic that is highly resistant to impact, making it a very hard wearing material. It can easily be routed, sawn, punched, drilled, guillotined, thermoformed or
At Advanced Plastiform, Inc. we work hard to provide our customers with durable, long-lasting plastics that offer the qualities they need while keeping lead times fast and prices low. In order to achieve the best results, we take care to match the most suitable thermoplastic to the project. One of those plastics we offer is high impact polystyrene, also known as HIPS.
While general purpose polystyrene is lightweight, clear, and brittle, HIPS benefits from rubber additives to make it much more is much more flexible and improve its impact strength. Though it has an opaque appearance, it can be painted, labeled, and designed with ease.
Once heated, HIPS is highly malleable, meaning high impact polystyrene thermoforming is an excellent way to manufacture the plastics our customers need. To do this, large sheets of HIPS are heated and fitted over a custom tool. Then, to achieve the ideal shape and design, we use one of three methods to complete the thermoforming process.
Twin sheet forming is the most complex high impact polystyrene thermoforming method. We heat two sheets of HIPS simultaneously, then fit and fuse them together. While it sounds simple, great care must be taken to make sure the two pieces are able to fuse together at the pressed points. This method is used to create hollow and double-walled industrial products. Gas cans and air ducts can be made by twin sheet forming HIPS.
Plastic Stockist offers a superb selection of high impact polystyrene or HIPS that are inexpensive and lightweight. High impact polystyrene has excellent forming properties and high impact strength which makes HIPS ideal for model making applications. High impact polystyrene is typically used for handling trays and is available in 14 standard colours as well as in silver and gold mirror effect.
High impact polystyrene can be easily vacuum formed, making it the ideal material for a whole range of point of sale and point of purchase applications, signage, sports equipment, make-up trays and craft applications. HIPS can also be used for a number of printing and forming applications and due to its consistent matt surface, HIPS allows for both lithographic and flexographic printing on both sides. HIPS is an ideal choice for signs, ID cards and name tags, and can also be formed and used for medical and food packaging and containers.
Because of its excellent vacuum forming and low-temperature properties, styrene can be used for a wide range of applications, including printing, painting, and silk screening. Styrene is a versatile sheet that can be cut extremely well and is easily cut using die-cutting methods. 041b061a72