TITANIUM DIOXIDE | MATERIALS
Recent developments in titanium dioxide for extruded products include a masterbatch for window profiles, solar reflective pigments and a project to reclaim TiO2 from end-of-life products
White noise: latest on titanium dioxide
K2022 may have ended some time ago, but a number of titanium dioxide producers unsurpris- ingly used the show to launch new developments in the main white pigment used in plastic products. Delta Tecnic of Spain introduced a range of new masterbatches for PVC at K2022 – including one based on titanium dioxide. One range of colour PVC masterbatches – for window profiles – are designed to provide fast dilution, high colour consistency and weather resistance. Area manager Filipa Martins says that using masterbatch rather than powder pigments is a cleaner solution for profile extruders producing their own compounds. In addition, the company offered new colour masterbatches for recycled PVC in black, white and brown. The white masterbatch has a high content of titanium dioxide – and other ingredients – to help restore the appearance of recycled white PVC that has yellowed over its lifetime. All the master- batches have high concentrations of pigments and are formulated to deliver good dispersion.
Showcase brands LB Group (formerly Lomon Billions) showcased a number of its titanium dioxide pigments for plastics at K2022.
www.pipeandprofile.com “Our Billions TiO2 pigments are global brands,
approved and used by leading plastics producers worldwide,” said Julie Reid, marketing director at LB. “The Billions BLR-688 pigment, made by the sulphate process, is a customer favourite for exterior plastics, including profile and pipe applications.” Separate to this, the Billions BLR- 886 pigment is made by the chloride process. The blue- toned white pigment is suited to polyolefin masterbatch, high-temperature extrusion coatings and engineer- ing plastics.
LB says it has invested heavily in TiO2 pigment manufacturing – giving it an annual production capacity of over 1100kt – including 460ktpa chloride-process capacity at its manufacturing sites in Jiaozuo in Henan Province, and Chuxiong in Yunnan Province. “Annual manufacturing capacity has grown from 700kt to over 1100kt since 2018,” according to Reid.
Its latest 100ktpa chloride-process TiO2 pigment
production line, constructed at Jiaozuo, was commissioned in Q1 2022, while it is building a new 200ktpa chloride-process TiO2 pigment manufacturing capacity at Chuxiong that is sched- uled for commercial production in 2023.
Main image: Plastics pipes are a major application of titanium dioxide
� January/February 2023 | PIPE & PROFILE EXTRUSION 21
IMAGE: SHUTTERSTOCK
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