How to test the physical properties of BOPP synthetic paper?

The physical property testing of BOPP synthetic paper is a comprehensive process, involving many aspects of performance testing. The following are some common physical performance testing methods and their specific instructions:

1, Tensile performance test

Objective: To evaluate the tensile strength, elongation at break and other parameters of BOPP synthetic paper, which reflect the tensile properties and ductility of the material.

Test method:

The tensile test of BOPP synthetic paper was carried out by electronic tensile testing machine.

Test conditions are set according to standard test methods (such as ASTM D882, GB/T 1040, etc.), including tensile speed, sample size, etc.

The sample is fixed to the tension test machine and the tension is applied until the sample breaks.

The tensile strength and elongation at break were calculated by recording the change of force value during the tensile process.

2. Thickness test

Objective: To measure the thickness of BOPP synthetic paper and ensure that it meets the requirements of use.

Test method:

The thickness of the sample is measured using a high-precision thickness gauge, such as Labthink's CHY-C2A thickness gauge.

Multiple measurements are made at different locations of the sample, and the average value is taken as the thickness value of the sample.

Pay attention to control the measurement deviation to ensure the accuracy of the measurement results.

3. Heat sealing performance test

Objective: To evaluate the heat sealing strength of BOPP synthetic paper, that is, the sealing strength formed by the material under heat sealing conditions.

Test method:

Use a heat sealing tester (such as HST-H3 heat sealing tester) to heat seal the sample.

The sample is hot sealed under the conditions of set heat sealing temperature, pressure and time.

The separation force of the hot seal is tested using an electronic tensile testing machine to evaluate the strength of the hot seal.

4. Smooth performance test

Objective: To evaluate the surface smoothness of BOPP synthetic paper, that is, the friction coefficient between the surface of the material and the contact material.

Test method:

The sample is tested using a friction coefficient tester such as Labthink Blue Light's MXD-02 friction coefficient tester.

Set the test conditions according to the standard test method (e.g. GB 10006), including test speed, sample size, etc.

The sample is fixed on the test bench so that the contact object (such as metal plate, conveyor belt, etc.) slides on the surface of the sample.

The change of force value in sliding process was recorded and the friction coefficient was calculated.

5. Shrinkage performance test

Objective: To evaluate the shrinkage performance of BOPP synthetic paper under heat, that is, the dimensional stability of the material.

Test method:

The sample is tested using a thermal shrinkage tester such as Labthink's RSY-R2 thermal shrinkage tester.

The sample was placed in the set constant temperature medium to shrink freely, and the size change before and after contraction was recorded.

The shrinkage rate of the sample was calculated to evaluate its dimensional stability.

6. Other performance tests

In addition to the above common physical properties tests, BOPP synthetic paper may also need to perform other performance tests, such as water resistance tests, air permeability tests, antistatic tests, etc. The specific operation and standards of these test methods can be selected according to actual needs and relevant standards.

In summary, the physical property testing of BOPP synthetic paper is a comprehensive process, involving multiple aspects of performance testing. Through these tests, the performance and quality of the material can be comprehensively evaluated to ensure that it meets the requirements of use.