Laboratory services

Quality Control Laboratory of Poyesh Polymer Technologies Company

One of the main missing links in the polymer recycling industry is providing the quality and standards desired by the customer in a stable and guaranteed way. Due to the fact that the idea of ​​Pouyesh Polymer Technologies company was to eliminate this important defect in the polymer recycling industry, this company from the beginning built and equipped a specialized laboratory to control the quality of polymer materials and use skilled and experienced experts. put in this context. In this regard, it can be claimed that Pouyesh Laboratory is currently the most complete laboratory of its kind in the recycling industry. Using the experience of experts with experience and laboratory equipment has enabled Pouyesh Company to supply a quality and standard product to its customers according to the technical information sheet. On the other hand, this company is able to fully analyze all incoming raw materials and prevent low-quality raw materials from entering the factory.

Thermal analysis (DSC)

Differential Scanning Calorimetry test is one of the most advanced methods to determine the identity of polymer materials. In this method, the substructure and properties related to it are investigated using thermal analysis, and the changes in heat capacity of materials are measured as a function of temperature. The difference in energy required to keep the temperature constant in the control and unknown samples leads to drawing a graph whose peaks indicate the melting and freezing temperature of the polymer sample. Since this temperature is a specific value for each polymer, with this method, the identity of the unknown sample can be determined with high accuracy. Considering the common problems in the field of impurity in the primary raw materials of the recycling industry, Pouyesh Polymer Technologies Company conducts this test using modern equipment and polymer specialists on samples of incoming raw materials and its manufactured products. To perform this test, the ASTM D3418 standard method is used.

Melt Flow Index (MFI)

One of the quick methods to identify the properties of polymers is to use the Melt Flow Index test. This index represents the magnitude of the density of polymer molecules, which is expressed in the flow of polymer melt. The output data in this test is based on the output weight in a fixed time scale of 10 minutes. The test conditions for different materials are different based on the standards used. With the benefit of advanced and accurate equipment and based on ASTM D1238 standard, Pouyesh Polymer Technologies Company measures this important index and controls incoming raw materials, production control and final product.

Tensile Strength

The resistance of different materials against tearing due to stretching or applying force in a certain direction is one of the most important and most used properties that determine the operational and practical capabilities of the final parts. The tensile force is applied per unit area and is expressed as tensile stress based on MPa. The maximum stress required to break a material is expressed as tensile strength at break point. Also, the maximum stress that does not cause elastic behavior or return to the initial state when removed from the sample is called tensile strength at the yield point (Tensile at Yield). Pouyesh Polymer Technologies Company’s laboratory uses one of the most advanced tensile testing devices to measure this parameter based on the ASTM D638 standard to measure this index for its products.

Flexural Modulus

This test is one of the ways of resistance of materials against deformation in the direction of applying vertical pressure, called bending strength. To measure this index, three-point, four-point, fixed long beam and other similar methods are used. By measuring this index and reporting it to the customer according to the ASTM D638 standard, Pouyesh Polymer Technologies Company’s laboratory is taking steps towards realizing the goal of quality assurance and production of products based on polymer engineering knowledge.

Impact Strength

This test is one of the main ways to determine the toughness of polymer materials so that they show how much impact energy a polymer can store in itself before breaking. If the amount of said energy is low, it indicates that the material behaves brittle and brittle, and high sensitivity to impact should be taken into account when designing the part made with it. On the other hand, if the amount of absorbed energy is high, it indicates the softness and flexibility of the material. The most common impact test methods can be mentioned Izod and Charpy. The test output is expressed based on KJ/m2 or J/m. The laboratory of Pouyesh Polymer Technologies company registers and controls the mentioned parameter in its products by using the impact strength test device and using the ASTM D256 standard method.

Filler Content

Determining the purity of polymer materials and determining the amount of non-polymeric fillers is one of the most important needs of a laboratory in a factory producing polymer materials. This test is performed according to the ASTM D5630 standard and using a furnace. Depending on the type of material and the type of filler, the setting time and temperature conditions and the output data determine the percentage of filler used in the material formula. Using this equipment, Pouyesh Polymer Technologies Company controls the purity of the incoming raw materials and also measures the accuracy in the formulation of the manufactured product.