Films and sheets testing

Thin plastic materials of less than 1.0 mm are used for great number of applications like for packing, lamination, plastic garbage bags, sandwich bags, food containers, tapes and many more. When subjected to tensile testing, we could measure the Elongation, tensile yield strength, tensile modulus and tensile strength at break. Maeon laboratories have requisite facility for conducting Plastic film tensile testing / Polymeric films tensile testing.

Graves tear test for films measure the force to initiate tearing in plastic films, The punched out specimens are subjected to tension load at a constant rate and the load to failure is recorded.

Elmendorf tear testing determines force to propagate tearing through a specified length of plastic film. This facility is available at Maeon laboratories for performing Elmendorf tear testing of Plastic films.

Force necessary to propagate a tear is plastic film and application of tensile force is measured. This facility is available at Maeon laboratories for performing Elmendorf tear testing of Plastic films.

Plastic films are tested for its resistance to snagging ie dynamic puncture and propagation of that puncture resulting in a tear, by measuring the force required.

Composite films of flexible materials such as cellulose, paper, plastic film, and foil are tested for bond strength or ply adhesion. Maeon Laboratory has facility for Adhesion of film laminates.

Adhesive tapes, coated film etc. adhesion of the coating to be as per norms. Maeon Laboratories conduct three types of adhesion peel tests . These test methods cover the measurement of the peel adhesion of pressure-sensitive tapes. .1ST method gives a measure of the adherence, when peeled at 180° angle, to a standard steel panel or to other surface of interest for a single-coated tape. .2nd method gives a measure of the adherence to the backing of a single-coated tape. .3rd method gives a measure of the adherence of double-coated tape to a standard steel panel or other surface of interest.

Free falling dart impact testing is done for Plastic films – It determines the energy that causes plastic film to fail under specified conditions of impact of a free-falling dart.

The friction coefficient test is conducted to the resistance of one material to slide over another or same material. Static coefficient of friction determines the energy required to star the motion between two surfaces. The Kinetic coefficient of friction determine the resistance to sliding once one surface is in relative motion to the another surface. Maeon laboratory carry out this important property on many polymeric and other materials including films.

The plastic film and various kinds of tape are tested for its resistance level to flammability. The procedure performed for films is vertical burning method, which Maeon laboratory is providing excellent services for the Burning rate determination test.

Films and tapes are used for numerous electrical applications where electrical resistance , dielectric strength properties are essential. Maeon Laboratories conduct various electrical property tests for films and tapes.

Polymeric Films, adhesive tapes either opaque or transparent require optical property to be controlled for its end application. Maeon Laboratory follow National and International standards to determine properties such as, haze , luminous transmittance, gloss, reflectance and provide valuable data to the customer

Rate of transmission or permeability of gas, water are measured and controlled to meet end product applications. Either water vapour or gas/air under pressure supplied from one side of flexible barrier material and transfer at stipulated conditions are measured.

Tests applicable for single or multi-layered heat-sealable films, single homogeneous non-sealable films, finished containers and closures for sealing as lids, in the finished form, preformed or converted form, single (mono) layers, coextruded, and laminate materials.

Validation of quality and performance of the product as a whole is carried via the stipulations and guidance provided by national and international specifications on polymeric films, sheets, for a variety of applications. Some of the standards, Maeon laboratories are capable of testing the films, sheets for compliance are listed above.