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Thickness determination test

To determine the thickness of greenhouse coatings in Semanplast Parse, a digital thickness measuring device is used and the experts of this group measure the thickness of individual points of the produced films in accordance with the ISO 4593 standard, and then the average thickness of the film which should be in accordance with the ISO 4591 and ISO 4593 standards. The tests are done using films cut in the transverse direction of the roll (TD).

Tear resistance test

This device is designed to measure the tear resistance of sheet samples. In this test, which is also called Elmendorf test, ten samples of plastic film are cut in the direction of the machine and against the direction of the machine. A sample (including one or more sheets) is placed in the machine. A cutting knife is used to create a gap in the sample, which is 43 mm away from the edge of the sample. When a pendulum is released, the slot expands along the remaining 43 mm. The energy consumed by the pendulum is used to calculate the average tear force. The results are presented as breaking force in millinewtons. In this test, the results for samples with the same thickness can be compared.

Visible light transmittance and turbidity test

In order to accurately check the total amount of visible light transmission and the degree of opacity of the greenhouse coatings of Semanplast Parse company, using the device for detecting visible light transmission and opacity in accordance with the ASTM D1003-13 standard and by performing five tests cut from different points of the film and reporting the average It is checked and approved if its average meets the requirements of the above standard.

Tensile strength test

In order to determine the tensile characteristics of agricultural and greenhouse coatings produced in Semanplast Parse, a tensile device is used, the data of which must be in accordance with EN ISO527-1 and EN ISO527-3 standards and using five samples. Type two with a width of ten millimeters which is prepared in each direction of the film, longitudinal direction (MD) and transverse direction (TD) is done at a speed of 500 mm/min. Then the data obtained from five samples based on The obtained average is reported and compared with the requirements of existing standards.

Impact resistance test

The coatings produced in Semanplast Parse are tested to determine the impact resistance (free fall of weight). EN ISO 7765-1 and according to method A is checked on two flat and folded areas. Based on the obtained results, the production coatings must bear the amount specified in the mentioned standard in order to be approved.

Width determination test

Fabric, metal and digital meters are used to determine the width of the coatings produced in Semanplast Parse, and the results of the measurements are checked and reported by the experts of the ISO4592 standard.

optical microscope

An optical microscope is used to enlarge and check the samples produced in Parse Cement Plast Company and to check the degree of destruction after the tests or to check the samples prepared for testing.

Melt flow rate measurement test (MFR, MVR)

The plastic melt mass flow rate test is a test that is used to measure the plastic melt mass flow rate through the mold opening. This test is commonly used to measure the flow characteristics of polymer melts such as viscosity, shear rate and pressure. The higher the MFR value, that is, during a fixed time (10 minutes), the more amount of plastic flows at the test temperature, that is, the resistance to flow of the polymer or plastic is lower and it flows more easily, the flow resistance is We know a concept called viscosity. As a result, the higher the MFR of a polymer, the lower its viscosity.

digital Balance

To measure the exact weight of raw materials for MFI, MVR tests and to measure the weight of chemicals in tests to determine the amount of sulfur, etc., using a digital scale with accuracy 0.1mg or area meter can be used.

Creep determination test

Creep test is used to determine the elongation of greenhouse cover samples under constant load during a constant period of time. This test should be done under constant temperature conditions, certain pressure and certain duration, after that the results obtained are reported based on millimeters to determine the permissible amount of elongation of the samples.

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