MINERAL FILLERS | MATERIALS
and impact resistance are also important, and talc can help meet these requirements.
PLA concentrate Also new from IMI Fabi is NatFeel PLA-ready, a polylactic acid-based concentrate of NatFeel talc. “PLA is often limited by slow crystallisation kinetics and the resulting constraints on heat resistance and cycle time,” explained the company. “NatFeel is a
highly micronised, talc-based functional mineral supplied in compacted form to support handling and feeding; it is used to promote crystallisation and improve thermomechanical performance in compostable polymers.” The new concentrate is designed to improve dosing and dispersion while preserving nucleation efficiency, the company said. Flowability is important for mineral fillers such as
talc. Compacted grades can reduce dust and improve bulk handling and feeding consistency.
The company’s HTP1S grade is a free-flowing, highly micronised talc with spherical agglomerates
that reduce bridging and funnel-flow issues. “This [form] supports accurate metering [in loss-in-weight feeders] and makes HTP1S suitable as an ingredient
for dry-blend additive pre-mixes, helping proces-
sors dose expensive additives more reliably than with fine powders alone,” the company said. Imerys has a new grade of Steamic talc, which is a family of platy, finely ground talcs for automotive and other applications in the EMEA and APAC regions. They are available in a compacted form that allows increased throughput with less dust generation than dry powders, the company said. The newest grade, Steamic T1WN, was highlighted at K2025 for the APAC region. Imerys’ talc processing facility in Wuhu, Anhui
Province, China opened in October 2023 and produces talc for the local automotive industry, including the growing EV sector.
Fillers for recyclate HPF The Mineral Engineers, a division of Quarz- werke group, recently conducted material trials at the HPF facility on mineral fillers as solutions for recycled plastics. Unwanted odour is one concern with recycled plastics. The company’s Rescofil functional mineral odour absorbers use a combina- tion of physical and chemical adsorption mecha- nisms to reduce odour-causing substances. Typical use levels are between 1 and 10%, the company
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42
