Tensile Strength in HIPS is tested worldwide and has standards. This test is performed to determine the flexibility of polystyrene materials. High impact polystyrene is impact resistant; In addition, it is resistant to pressure and tension. Tensile Strength in HIPS is one of the determining parameters of tensile strength.

This test is one of the most important tests for selecting the right raw materials and producing high-quality products. Polystyrenes are produced in various shapes and forms, and these standards are very useful for comparing them. In this PETROPROVIDERS article, join us to show you the Tensile Strength in HIPS test standards.

Introduction of Tensile Strength test in HIPS

This test is used to develop applications of HIPS polystyrene. This test determines what products polystyrene is suitable for. For example, if we want to use HIPS polystyrene for building insulation or flooring, this material must have good resistance to various tensions and pressures.

It should be noted that Tensile Strength is a parameter that shows how the forces acting on a material change its structure. If we put polymers in this experiment, they will first deform elastically. If we turn off the pressure at this point, the material will return to its original state; This is due to the elasticity of polystyrenes.

If we increase the pressure, the material deforms into plastic; That is, as the pressure increases, the material deforms irreversibly. Then, the material may break down and can no longer be repaired or recycled.

high impact polystyrene uses

high impact polystyrene uses

There is a factor called fracture point in this test. This point indicates the amount of pressure that polystyrene can withstand without breaking. If the pressure reaches the breaking point, the material will resist to the point of failure. If the pressure increases, the polymer breaks and does not return to its original state. The point at which the polymer has the maximum strength to withstand pressure is called the ultimate strength.

In various pressure tests on polymers, all pressures and changes of the polymer are recorded. These pressures deform the polymer and increase its length or bend. High-precision sensors and electronic and mechanical devices are used in the tests. These devices and sensors measure the pressure on the polymer and record changes in the polymer.

These changes are plotted and give detailed information about the strength of the material. At the beginning of the graph, the changes are linearly smooth. This part is the elastic part of the polymer; In this section, material changes include increasing reversible length. This part of the chart is very short and it ends.

In the next section, the diagram records the plastic state of the material. At this stage, the changes in the polymer are irreversible. For example, if changes are made to a substance and the substance cannot return to its original shape after the pressure is turned off, we say that these changes were irreversible.

There is another section in the Tensile Strength in HIPS chart called the Fracture Point section. At this point, the polymer begins to break down. In this, the pressure is greater than the resistance of the polymer and causes the material to break.

Many parameters affect the Tensile Strength in HIPS. For example, molecular weight, state of matter (crystalline), and bonds between atoms of matter. These parameters change the material’s resistance to pressure. These parameters are very important in determining Tensile Strength.

Introduction of Tensile Strength test in HIPS

Tensile Strength test in HIPS

Tensile Strength test in HIPS

As mentioned, in this test, the strength of the material is calculated for stress. This test is to determine the material’s resistance to impact and pressure. It should be noted that the Tensile Strength test for HIPS polystyrene must be performed by ASTM D638 standard. This standard states all the requirements for this test.

In general, HIPS polystyrene specimens should be 14 mm thick. This increases the efficiency of systems to increase pressure. In addition, the device failure rate is reduced. In this test, at least 5 polystyrene samples must be tested.

This device has two clamps. The bottom clamp is fixed and used to hold the specimen. The top clamp is movable in this test and puts pressure on the sample. It should be noted that the sample must be completely stationary and immobile for the test to be performed correctly.

This test must be performed under standard conditions to record accurate information about the specifications of the polystyrene sample. In this device, fracture points and elastic and plastic points of the material are determined. This is recorded by sensors and plotted on a graph.

To check the Tensile Strength in HIPS, the diagrams must be read carefully. In this test, if the desired material is not placed in the device according to the standard, there may be an error test result. In general, this test is similar to other HIPS resistance tests.

Summary of the Tensile Strength test in HIPS

In this article, we reviewed the Tensile Strength Test. This material is used in various industries. This material is used for the production of plastics in various industries. It should be noted that the use of polymers in various industries increases the resistance of plastics to impact and tension. This material is used in the automotive, aircraft, and construction industries. In addition, these polystyrenes are used to produce home appliances and building insulation.

Many parameters affect the Tensile Strength in HIPS. For example, molecular weight, state of matter (crystalline), and bonds between atoms of matter. These parameters change the material’s resistance to pressure. These parameters are very important in determining Tensile Strength.

What do you think about Tensile Strength in HIPS? Does this test determine the exact resistance of polystyrene to pressure and tension? Are the standards required for this test selected correctly? Will the methods of testing Tensile Strength in different polystyrenes be different in the future? In the comments section, you can ask us your questions about polystyrene.

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