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What are the properties of expanded polystyrene?

What are the properties of expanded polystyrene?

Properties of EPS

  • Light Weight. EPS is an extremely lightweight material which is not surprising considering it is comprised of ~98% air.
  • Durability.
  • Moisture Resistance.
  • Thermal Efficiency.
  • Shock Absorption.
  • Versatility.
  • Ease of Use.

What are the properties of polystyrene plastic?

Polystyrene Characteristics Unmodified polystyrene is clear, rigid, brittle and moderately strong. Its electrical properties as a dielectric material are good, though it has relatively low heat resistance. Polystyrene is soluble in most chlorinated and aromatic solvents, though not in alcohols.

What are 3 physical properties of polystyrene?

It is rigid, brittle, relatively hard and has excellent gamma radiation resistance, good electrical properties but has poor chemical and UV resistance. It can also be radiation sterilized.

What is expanded polystyrene plastic used for?

Expanded Polystyrene (EPS) is a rigid cellular plastic, which is found in a multitude of shapes and applications. It is used for fish boxes, packaging for electrical consumer goods and for insulation panels for building.

What is expanded polystyrene material?

EPS is a rigid, closed cell, thermoplastic foam material. It is produced from solid beads of polystyrene. The gas expands when heat in the form of steam is applied, thus forming closed cells of EPS. These cells occupy approximately 40 times the volume of the original polystyrene bead.

What is the difference between polystyrene and expanded polystyrene?

The Difference between Expanded Polystyrene and Extruded Polystyrene. The main difference between these two materials lies in their density. Extruded polystyrene is much denser than expanded polystyrene (2.18 lbs. 0.93 lbs.

How is expanded polystyrene made?

It is produced from solid beads of polystyrene. Expansion is achieved by virtue of small amounts of gas contained within the polystyrene bead. The gas expands when heat in the form of steam is applied, thus forming closed cells of EPS.

What are the characteristics of a Styrofoam?

Physical Properties of Styrofoam

  • Thermoplastic. One of Styrofoam’s main physical properties is that it is a thermoplastic.
  • Lightweight & Shock Absorber. Styrofoam is that it is extremely lightweight.
  • Insulator. Styrofoam is an excellent insulator.

Why is polystyrene a good insulator?

Polystyrene and plastic foam are both used as insulators as they have small air bubbles trapped inside them. This makes them very good insulators because heat energy can’t flow through them. This stops the movement of air in the space between the two layers of glass and reduces heat loss from the window.

Why is styrofoam a good insulator?

Polystyrene and plastic foam are both used as insulators as they have small air bubbles trapped inside them. This makes them very good insulators because heat energy can’t flow through them.

How strong is expanded polystyrene?

The mechanical strength of EPS varies with its density. The most important mechanical property of EPS insulation and building products is its resistance to compressive stresses, which increase as the density becomes higher. EPS has a compressive resistance between 10 – 60 psi for most construction applications.

What is expanded polystyrene made of?

Expanded PolyStyrene (EPS) is a white foam plastic material produced from solid beads of polystyrene. It is primarily used for packaging, insulation, etc. It is a closed-cell, rigid foam material produced from: Styrene – which forms the cellular structure.

What is the best insulation board?

Extruded polystyrene (XPS), also known as blueboard, acts as the best insulating foam board for below-grade applications, according to the U.S. Green Building Council. XPS offers greater moisture resistance than EPS, without the need for special films or coating to fend off moisture.

What is EPs building material?

Expanded polystyrene (EPS) is an innovative building material that lends to the design and structural integrity of many building projects.

What is EPs roofing?

EPS roofing insulation can be used in most roofing systems and is capable of providing cost effective and consistent thermal performance. EPS offers measurable energy savings, long-term R-value , effective water resistance, dimensional stability and strength when properly installed and protected from moisture.

How is EPs made?

EPS is manufactured from styrene monomer; low levels of styrene occur naturally in many plants, fruit, vegetables, nuts and meat. EPS is a derivative of ethylene and benzene and is made using a polymerisation process which produces translucent spherical beads of polystyrene , about the size of sugar granules.