The Universal Selection Source: Plastics & Elastomers
A SpecialChem Client is seeking to remove solid fat such as triglycerides from fabric substrates such as cotton and polyester at temperatures below 25°C in a liquid environment.
Proprietary active packaging technology was developed for extending the shelf life of postharvest horticultural products. The technology can be incorporated into conventional packa...
A SpecialChem Client requires a technology that delivers an instant optical blurring effects on the skin, i.e. immediately reduces the appearance of fine lines, pores and blemishes...
A SpecialChem Client is seeking a thin film polymer barrier to spray coat into metal beverage and food cans at high speed. This polymer barrier must be resistant to mechanical bend...
This technology allows selective separation of metals from solid or liquid mixtures. Given the nature of this technology, it can be tailored to separate specific elements. Industri...
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High Heat Materials
Hardness qualifies the resistance to permanent indentation of a material. Rockwell M hardness is a standardized test which consists in measuring the depth of penetration of a polished steel ball pressed at the surface of a plastic under controlled conditions. The higher the value, the harder the material. Rockwell Hardness measures are dimensionless.
Rockwell Hardness test is generally used for hard materials, like PA, PC, PS or POM, where the resilience or creep of the polymer is less likely to affect results. Different Rockwell Hardness scales utilize different size of steel balls and different loads. The three most common scales used for plastics are Rockwell E, Rockwell M, and Rockwell R.
Test methods used to measure Rockwell Hardness M are ASTM D785 and ISO 2039-2.
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