+86 13691824744

Different Testing to Evaluate Plastic Properties and How


Quick Navigation

In an increasingly plastic-dependent world, understanding the diverse properties of plastic and film materials is crucial for various industries. From assessing strength and durability to examining melting points and other physical characteristics, comprehensive testing plays a vital role in ensuring quality and performance. This article aims to discover the multifaceted world of plastic and film testing, shedding light on the different methodologies and techniques used to evaluate their unique properties.

plastic testing

#1-Tensile Test

The tensile test is a widely used method to evaluate the mechanical properties of plastic materials. It involves subjecting a plastic specimen to controlled tension forces until it breaks, allowing researchers to measure important properties such as tensile strength, elongation at break, and yield strength.

A tensile tester is designed to conduct tensile tests on various materials, including plastic, plastic film, paper and metal. It is designed to apply controlled tension forces to a specimen until it reaches its breaking point. By doing so, it allows researchers and engineers to measure and analyze important mechanical properties of the material.

#2- Puncture Test

A puncture test is a type of mechanical test used to evaluate the strength and resistance of  varous materials including plastics, textiles, films and corrugated boxes, against puncture or penetration. This test helps assess the material’s durability and suitability for various applications, such as protective packaging, textiles, automotive components, or medical devices.

#3- Impact Test

The plastic impact test is a crucial method used to evaluate the toughness and durability of plastic materials. It helps determine how well a plastic material can withstand sudden impact or shock, and is important for applications where impact resistance is paramount. The test typically involves subjecting a plastic specimen to a controlled impact using a pendulum or a falling weight. The impact force is measured, along with the energy absorbed or the amount of deformation caused by the impact.

Common plastic impact testing machines include Izod impact testing machine and charpy impact test machine. Check Comprenhensive Comparison: Izod and Charpy Test.


#4- Bending Test

The bending test of plastic is another mechanical test conducted to assess the flexural properties of plastic and plastic film. The procedure entails applying a three-point or four-point bending load to a test specimen in order to evaluate its ability to withstand bending stress, deformation, and fracture.

#5- Melt Flow Index(MFI) Test

The melt flow index (MFI) test is a common method used to determine the flowability of plastic materials under specified conditions. It measures the rate at which molten plastic flows through a small-diameter orifice under a constant pressure.

The MFI test is important in various industries, including plastics manufacturing and processing. It helps determine the appropriate processing conditions, such as temperature and pressure settings, for a particular plastic material.

#6- Universal Testing Machine

A universal testing machine (UTM) is a versatile equipment used to perform mechanical tests on various materials, components, and structures. It applies controlled forces, loads, or displacements to determine the mechanical properties and behavior of the tested specimen.

Some common testings include tension test, compression test, bending test, and torsion test.By analyzing the data collected during these tests, important material properties can be determined, allowing engineers to make informed design and manufacturing decisions.

#6- Vicat Softening Temperature Test

The Vicat Softening Temperature Test is a method used to determine the softening point of a plastic material. It measures the temperature at which a plastic sample starts to deform under a specified load.