JEC COMPOSITES MAGAZINE - Issue #62 - January/February 2011 - 56

innovations
Multi-sector

Multi-sector

Angeloni's Dynanotex technology

The Dynanotex technology has been developed and patented by G. Angeloni. The system received an Italian Innovation Award and hit the market in early 2008. Dynanotex is a patented tow spreading system for dry unidirectional carbon fibre reinforcements with characteristics that are unique in the world: two layers of unidirectional carbon fibre bonded together by a resincompatible adhesive. The system produces thin, lightweight reinforcements (70 to 200 g\m²) from heavy tow fibres (15K-24K- 50K). It ensures the perfect alignment of fibres, making it possible to fully exploit their mechanical performance. Interlaminar shear strength is improved thanks to the perfect bonding of the fibre layers. The perfect fibre distribution eliminates any resin accumulation. High-stability versions with glass scrim or thermoplastic nets are available. The new 2009-2010 development offers the possibility to produce balanced fabrics by cutting the unidirectional reinforcement into strips. The result is a flat fabric with unique design and high three-dimensional effects.
www.g-angeloni.com

Polystrand introduces a “green series” of reinforcements

Polystrand is releasing a “green series” of reinforcing tape that reduces the environmental footprint of input material for reinforced thermoplastic processors. Available in unidirectional, bi-ply and tri-ply configurations, the new series uses recycled polyolefin as the matrix. Polystrand® reinforcing tape is made in a proprietary process that impregnates continuous fibre with a thermoplastic resin. The reinforcement has been made with a variety of polymer materials including virgin polypropylene. The new green series provides a product with recycled content that approaches the physical properties of prime material at competitive prices. The recycled polyolefins used are made from pre- and post-consumer material. According to industry estimates, only about 7% of all plastics are recycled, while about 80% goes to landfills. The use of recycled polyolefin helps increase the amount being recycled. And because recycled thermoplastic polyolefin is a stiff, light and hard polymer, the reinforcement product offers great physical properties. Products in the new green series provide consistent performance and can be tailored to customer needs.
www.polystrand.com

High-performance fillers for composites
jec composites magazine / No62 January - February 2011
High-performance fillers play a prominent role in the production of thermosetting plastics. The high demands of the various thermosets, such as high strength and high degrees of thermal resistance, can be met by means of functional fillers. Their use in finished articles also provides optically sophisticated, resistant surfaces. Quarzwerke’s high-performance fillers are mineral powders with an extremely high degree of chemical purity, very good chemical resistance and a very low binder requirement. They are widely used in reaction resins such as PMMA and unsaturated polyester resins, as well as in solid surface/engineered stone applications. Thermosetting materials produced with the TREFIL translucent filler are characterized by very good pigmentability and grindability. The coated-type TREFIL for unsaturated polyester resins and MMA/PMMA syrup is highly recommended. 2-K-PU adhesives are classic addition polymerization adhesives that are widely used in the field of structural bonding, e.g. in the automotive, railway vehicle and wind energy industries. Their properties can be set within broad limits from brittle/hard to plastic/elastic by selecting appropriate components and high-performance fillers. The flaky Quarzwerke TREMICA muscovite mica and needle-shaped Quarzwerke TREMIN wollastonite are perfectly suited to this field of application. ww.quarzwerke.com

Multifunctional processing additive for LS SMC/BMC

To obtain perfectly moulded parts, it is important to control the whole production process. Thus modern processing additives such as BYK®-P 9065 do not only meet partial requirements but influence the entire manufacturing process. For example, zinc stearate works as an internal release agent in standard formulations and is essential for removing the moulded part from the tool.

In opposition to this mono-functional effect, BYK®-P 9065 does not only guarantee a thorough release, but also improves the appearance of the moulded part. It quickly moves to the surface for immediate action but remains fixed in the system to prevent migration and hence supersede subsequent sanding. However, BYK®-P 9065 can do much more than this: it reduces shrinkage, enhances gloss, lowers haze, and improves the colour

homogeneity of finished parts. In short, it cuts the scrap rate. BYK®-P 9065 provides better anti-separation properties of LS SMC/BMC compounds. Consequently, the concept of controlling the whole production process significantly improves the quality of finished parts. And – at the same time – BYK®-P 9065 is very economical because it is effective at much smaller dosages than standard additives. www.byk.com

http://www.g-angeloni.com http://www.polystrand.com http://ww.quarzwerke.com http://www.byk.com

JEC COMPOSITES MAGAZINE - Issue #62 - January/February 2011

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #62 - January/February 2011