Ordinary polystyrene is better known as cristal polystyrene or GPPS (General purpose polystyrene) It is a hard very transparant and britlle plastic. One of the best know uses is cd-box. To improve the toughness of this plastic rubber is added during the manufacture. This synthetic rubber (polybutadiene) is divided trough the polystyrene in the form of small droplets ,The size and the composition of the rubber droplets will determine final properties. A lot of applications will be made with mixtures of GPPS and HIPS (HIPS is high impact polystyrene). The stiffness of HIPS is a lot lower than the stiffness of GPPS, hence the mixtures. One well known application is yoghurt cups.
No, high Impact Polystyrene (HIPS) is a thermoplastic. It melts when heated.
because it can protect the DVD cos it is hard and brittle. Hope this helps
Somewhat oversimplifying it a DVD (or CD) is a sandwich of two outer layers of polycarbonate plastic with a microscopically thin layer of aluminum, tantalum, or a optically reflective low melting point plastic between the outer layers. Standard factory made read only disks use aluminum in this inner layer for durability, the writable disks use either tantalum or a plastic in this inner layer to permit writing with the LASER as well as reading (which is used depends on the method of writing used).
Francium has any impact on the society.
A potenial impact of burning coal is using up the coal. Another impact is pollution
High impact polystyrene Home Information Packs (see related link below for more information)
high impact polystyrene
HIPS High Impact Polystyrene is particularly suitable for thermoforming, it is a tough, rigid material and its high impact strength means it can be guillotined, punched, routered or sawn without difficulty.
Unfilled polystyrene is also known as crystal polystyrene (PS) or general purpose polystyrene (GPPS). However, since crystal polystyrene is brittle, other polymers are added to polystyrene to improve its strength, and copolymers are formed as a result. One such copolymer is high impact polystyrene (HIPS), which is produced by adding polybutadiene rubber to polystyrene during the polymerization process. HIPS is tougher and has a greater impact strength than unfilled polystyrene. There are different types of polystyrene. Extruded polystyrene (XPS) is one form of the polymer that has high tensile strength, with good elasticity. It is commonly known as Styrofoam™. The other common form of polystyrene is expanded polystyrene (EPS). Both EPS and XPS are made from similar materials but there are difference between the two. XPS has a higher density as compared to EPS, due to the absence of air passages between its cells. The higher density makes XPS more rigid and strong. Also, XPS is waterproof and is an effective thermal insulator. Read more in the related link.
It depends on what kind of TV you have (LCD plasma old new). television housing can be made from polystyrene like POLYSTYRENE IMPACT 6540.
High-Impact Polystyrene, HIPS´ve a density = 1,06 gr/cc
i don't think i know yet.
It is a thermoplastic! :)
No, high Impact Polystyrene (HIPS) is a thermoplastic. It melts when heated.
i recently found this out and hips stands for high impact polystyrene but iam not actually sure what its used for
No, pure Polystyrene (PS) is quite brittle; hence, General Purpose Polystyrene (GPPS) does not yield. It breaks right after passing over its limit. However, the weakness of polystyrene, which is brittleness, is overcome when it is made into High Impact Polystyrene (HIPS). Having a higher breaking strain after polymerization, it is able to yield before breaking. Thus, from this tensile testing experiment, GPPS does not have yield strength, while HIPS has yield strength of 26.175N/mm2.
because it can protect the DVD cos it is hard and brittle. Hope this helps