Interpretation Of The Thin-Film Tensile Test In The Shouzheng Knowledge Class

Thin film tensile test is one of the important tests of thin film samples, which is used to test the mechanical properties of thin film samples under increasing stress. Through tensile testing, we can comprehensively understand the mechanical properties of the film, such as tensile strength, elongation, elastic modulus, etc.

The following is the test process of the PO Agricultural Film in the guard laboratory.

Tensile test is arguably one of the most important tests in thin-film samples. A stress-strain curve was obtained by measuring the corresponding shape variable of the sample under increasing stress.

Tensile tests can provide a general understanding of the mechanical properties of films such as PO Agricultural Film, such as resistance, resilience energy, elongation, etc.

Among all the test means, the tensile test is also one of the simplest and most convenient tests. It can be tested at any time in the process of blowing film production, and the formula and processing parameters of PO Agricultural Film can be adjusted through the results at any time.

In order to ensure the accuracy of the stretching test, the stretching test generally requires at least five data points within the statistical error range, so at the beginning of preparing the sample, you can prepare several more samples to avoid errors in the actual measurement, or the embarrassing situation that half of the test has no samples.

When actually testing the tensile force of PO Agricultural Film, attention should be paid to clean the fixture first, and ensure that the sample does not slip on the fixture, so as to affect the measurement results.

When choosing the spline holding position, we should also try to choose the position with flat membrane surface and small thickness deviation for the experiment.

After the end of the five experiments, we can judge whether all the results are within the acceptable error range by statistical principles, and then the final experimental results and stretching curves are obtained by taking the average.

After testing the positive PO film, the longitudinal tensile strength is 32.09Mpa, the lateral tensile strength is 31.41Mpa, in line with the national standard 18Mpa standards, welcome the majority of farmers friends to order choice.