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Environmental Stress Cracking Resistance tester is a unique test cabinet designed to detect the change in the physical characteristics of the plastic material and to ascertain the actual working life of test samples at environmental stress. It is important resin property caused by tensile stresses.
Environmental Stress Cracking is the brittle failure of a polymeric material from a combination of stress and environment. The frequency of failure depends on the material properties, the environment conditions, its level and type of stress under certain conditions of stress, and in the presence environments like wetting agents, soaps, detergents, oils. Blow molded polyethylene container exhibit involuntary failure by cracking at stresses substantially below those that would cause cracking in the absence of such environments.
Test methods of ESCR are clearly described in various standards that can be used to calculate the environmental stress- crack resistance of plastic containers.
Prestos Environmental Stress Cracking Resistance is designed as per ASTM D 1693 to evaluate the effect of environment on blow molded plastic containers. In the presence of few materials like oils, soaps, detergents or wetting agents containers may reveal a mechanical failure by cracking. A similar effect is observed under various circumstances of tension and cracks that occur at a substantially lower level of stress in the absence of such conditions.
Prestos Environmental Stress Cracking Resistance is widely used to measure the cracking resistance of plastics due to environmental stress, which is necessarily the abstract of various parameters. It is influenced by the design of the container, molding conditions, treatments during and after production and other related factors that affect this. This test procedure helps plastic manufacturers to separate and identify the effect of the related factors on stress crack resistance of the container.
The machine is supplied with standard accessories like digital temperature controller, cutting die, foils and glass tubes.
Testronix TP110 is an ideal instrument widely used in the color test industry.
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Vishal Malhotra (Presto Stantest Private Limited)
I -42A, Dlf Industrial Area, Phase-1, Delhi Mathura Road, Faridabad, Haryana - 121003
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