The term styrenics (or styrenic polymers) is used to describe a family of major plastic products that use styrene as the key building block. Styrenic polymers do not show a distinct melting point and, hence, no thermal energy for melting of polymeric crystals (melt enthalpy) is required during processing. That means faster processing under the same conditions, but also high dimensional stability and largely constant mechanical properties up to the so called Glass Transition Temperature Tg.
In the world there are about 120 transparent material presenting comparable properties for thousands of commercially available transparent grades. Optical properties are dependent on the specific polymer or copolymer material, the formulation (colourants, fillers, plasticizers and other additives) and the crystallinity of the materials. The CLIAR family includes a range of transparent products that have different properties.
These compounds offer a combination of improved dimensional stability and decreased flammability. The excellent balance of physical properties and low shrinkage allow to reinforced polycarbonate to be an excellent choice for electrical, appliance and hardware applications. Standard processing techniques are applicable.
Compounding refers to melt mixing the blend components and preparing a finished compound from all the components of the blend. There are basically three types of blends: plastic/plastic, rubber/rubber, and plastic/rubber blend.
Polyolefins are macromolecules formed by the polymerization of olefin monomer units. The IUPAC nomenclature term is poly(alkene). Molecular properties like molecular weight (MW) distribution and branching are fundamental and related to parameters such as material fatigue, impact strength, and resistance to degradation.
Polyamides are noted for their high mechanical strength, stiffness and thermal stability. In addition they offer good toughness at low temperatures, good chemical resistance, favourable sliding friction behaviour and can be processed very easily. Owing to its excellent properties, this material has become indispensable in almost all sectors of engineering for a wide range of different components and machine elements, as a high-grade electrical insulation material, for automotive and for many special applications.
Polyesters are a class of polymers obtained by polycondensation. They contain the functional group of esters along the carbon chain. They are obtained from dicarboxylic acids and diols. Depending on the starting monomers used and the orientation of the polymer chains, various types of polyesters are obtained.
Acetal resists are a class of thermoplastic polymers, obtained by polymerization of aldehydes. Acetal resins are used in the mechanical industry (gears, bushings), in the automotive industry and in the appliance industry. Their peculiarity is self-lubrication and good rigidity.