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As part of Huntsman Advanced Materials on-going commitment to deliver high performance speciality chemicals for formulators, the company has introduced a four-pronged approach to building blocks predicated on performance enhancement, cost reduction, formulation processing optimisation and the limitation of toxic substances wherever possible.
Enhancing formulation performance
Huntsman is leveraging its core competencies in synthesis and formulation to add new and innovative high performance materials to its range of proven and qualified building blocks in the drive to enable market differentiation for formulators in the areas of adhesives and composites, focused on the delivery of mechanical and thermal performance improvement.
Examples of how Huntsman is working to deliver enhanced formulation performance are as follows:
Reducing formulation costs
While reducing the cost of formulations can be achieved through the careful selection of raw materials, the manufacturing process is also pivotal to the delivery of sustainable solutions. Reducing the number of mixing or synthesis operations, lowering production time through easier incorporation and reducing the investment in manufacturing equipment are all examples of the factors that strongly influence the final cost of a formulation.
With access to a number of complementary global production facilities the company offers unique, off-the-shelf or customised, high quality and cost effective products and services for formulators within blends (of resins or hardeners), master-batches, as well as pre-adducted chemicals.
Blends of liquid bisphenol A based epoxy resins with reactive diluents, such as Araldite® BY 158 or Araldite® BY 157, or blends of solid bisphenol A epoxy resins and epoxy novolac resins such as Araldite® GT 7220 illustrate the wide offering of Araldite® Blends.
Similarly, the company’s Araldite® and Aradur® master batch concentrates can be diluted into final formulations to provide high quality homogeneous dispersions. Examples of this are Aradur® 1571, a viscous dispersion of solid latent hardener into liquid epoxy resin or the Araldite® DW series of concentrated coloured epoxy pastes. (graph 4)
Also, Araldite® or Aradur® adducts allow easier introduction into formulations or are used to provide better control for several properties or behaviour such as the polymerisation time.
One of the main characteristics of any type of formulation is its ability to be processed in an easy, efficient and cost effective way. Rheology and curing kinetics are among the most important influencing parameters:
Formulators are often looking to achieve the lowest final viscosity or for low viscosity building blocks that allow introduction into the formulation of larger amounts of other components without negative influence on the processability.
Gaining control over curing kinetics is essential for determining whether a formulation is suitable for the intended application and process.
To help formulators to develop their formulated systems with ease, Huntsman provides low to very low viscosity building blocks: from mono or multifunctional reactive diluents such as Araldite® DY-E or Araldite® DY-T, to high purity distilled resins such as Araldite® PY 306, Araldite® GY 285 or Araldite® MY790 (bis-phenol A or F based resins) or the trifunctional and structural resins Araldite® MY 0510 and Araldite® MY 0610. (graph 5)