ADDITIVES | ANTIOXIDANTS
Processing focus At Byk, the emphasis is on improving processabil- ity of compounds containing stabilisers. Products in Byk’s Byk-Max portfolio help reduce friction between the polymer melt and the internal metal surfaces of processing equipment without nega- tively affecting the mechanical properties of the final product, says Dan Berg, Global End Use Manager – Transportation, Thermoplastics Addi- tives and Solutions. When film producers employ UV stabilisers,
Figure 4: Gel count analysis comparing Ampacet’s Antioxidant 1900900- E masterbatch against a typical alternative after multiple passes Source: Ampacet
Global Marketing Director for Solvay’s Polymer Additives business. Ampacet’s Antioxidant 1900900-E is a specialty stabiliser masterbatch designed to protect recycled polyolefin from excessive degradation induced by heat such as yellowing and to minimise gel formation due to multiple extrusions. The company says it preserves the aesthetics and mechanical properties of packaging and allows manufacturers to use higher amounts of post-industrial and post-consumer recycled resins. “Stabiliser 1000404-EA is a highly efficient
complex stabilising grade for high-quality ge- omembranes designed to comply with strict design standards such as GRI, GM13, SKZ,” the company says.
Baerlocher continues to expand its Resin
Right: New additives from Brüggemann could allow polyamide compounders to exceed previous
performance limits
Stabilisation Technology (RST) platform, which acts synergistically with traditional antioxidants. Bae- ropol RST, in its pure form, is aimed at polymer producers and formulators who can use it to expand the performance window of existing stabiliser formulations or mitigate shortcomings of certain components: formulations limited by solubility or cost constraints, for example. It is supplied in the form of low-dust sprayed prills to help ensure a safe working environment and facilitate dosing. The company also offers fully formulated
antioxidant packages under the Baeropol T-Blend brand. These are available as granules or dust-free pastilles, and so can take advantage of the RST- technology at compounders and recyclers as well as at processors such as pipe and film producers. Baerlocher says it intends to expand the Baeropol T-Blend range to offer more tailored solutions for specific customer problems, in the use of both virgin and recycled materials. It says it aims to reveal results from some of these stabilisation development efforts at K 2019.
90 COMPOUNDING WORLD | September 2019
www.compoundingworld.com
Polyamide options Not all advances in stabilisation systems are for polyolefins. At K2019, Brüggemann will present its latest additive developments for virgin and recycled polyamides. The company says innova- tions include new heat stabilisers for medium to very high temperatures. “Phenolic Plus Brug- golen TP-H1803 fills the price and performance gap between existing phenolic-based and copper-
material handling is complicated due to the dusty or sticky nature of these substances, Berg says. “Our Byk-Max LS concentrates provide a highly effective alternative to improve the life cycle of plastic film, fibres, and other extruded items,” he says. “Thanks to their excellent feeding characteris- tics, the granules or pellets can be dosed accurate- ly and reliably. More importantly, they support a uniform and reproducible manufacturing process. We also offer grades, such as the Byk-Max LS 4122, that are suited for food applications.” Berg says that in extrusion processes and in solid masterbatches, BYK-P and Byk-Max P addi- tives provide excellent wetting of pigments and fillers together with less compacting and low melt viscosity. “This leads to improved particle disper- sion and lower filter pressure value (FPV). As a result, the throughput increases. Contrary to expectations, the finished part’s mechanical qualities benefit, too.”
PHOTO: BRÜGGEMANN
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