ADDITIVES | FLAME RETARDANTS
demanding UL 94 5VA fire standard without compromising mechanical properties, says Wael Geries, Flame Retardant Product Manager. The company says the global market is gradually
Above: Tosaf has developed a range of halogen and antimony-free compounds that meet the UL94 5VA classification
client and industry requirements. In addition, the required dosage is low, ranging from 1 to 5% for commonly used formulations, akthough the impact on properties is significant, even allowing a reduction in FR doses, says Vidal. Specialty compounder Techmer PM now offers two non-halogenated flame-retardant materials for polyethylene films and extrusion coatings that are free of antimony and PFAS, according to Kaan Serpersu, Product Development and Sustainability Manager. PM116050 can be used for low density polyethylene (LDPE) and linear low-density PE (LLDPE) blown film applications with maximum processing temperature of 205°C (400°F), while PM117000 product can be used for blown film and extrusion coating applications with a maximum processing temperature of 315°C (600°F). The two materials are based on non-halogen technologies and pass NFPA 701 Test Method 1 and 2. Techmer PM also offers its HiFill FR engineering
resin portfolio, which encompasses polyolefins with a process temperature up to 160°C through to ultra-high-performance resins such as PEEK with a 400°C process temperature. The HiFill FR product line includes flame retardant grades with all types of fillers, fibrous reinforcements, special effect additives and custom colours, and employs numerous flame-retardant technologies in its product lines that are all REACH / RoHS-2 globally compliant. This includes halogen and antimony oxide compositions, non-halogen polyamide grades, PC and PC blends, and other non-halogen flame retardant additives, says Serpersu.
Appliance science In recent months Tosaf has developed a halogen and antimony-free flame-retardant compound based on PP that meets the latest White Goods and Home Appliances Regulations and has passed the
26 COMPOUNDING WORLD | December 2023
shifting to halogen-free flame retardants and FR suppliers face the challenge of offering new halogen-free FRs (HFFR) that provide high FR efficiency, said Geries. To meet the FR needs of home appliance manufacturers, such as lower part thickness, Tosaf has launched several products in masterbatch or compound form for diverse polymers such as ABS, HIPS, PP and PE. This includes its FR7903PP EU PP compound. It uses a halogen-free FR based on a ceramification mecha- nism that, while burning, creates a char layer and ceramific structure that meets UL94 5VA standards at 2mm. Additional characteristics include low smoke and low heat release, which Geries says allows it to pass FR standards such as EN13501-1 BS1do, NFPA 286, ASTM E162, NF P 92 503/507 M1 and LPS 1207 standards. Tosaf has also developed FR2655PE EU, an HFFR masterbatch form of the new compound, which can be used in polyolefins. The masterbatch was challenging to develop due to the high dose of active ingredient needed to meet the EN13501- 1 BS1do standard, says Geries. In the halogenated FR category, Tosaf has also developed an antimony free-halogenated FR masterbatch line that meets the home appliance market demand for antimony-free products. Tosaf says it has formulated a solution that performs at the same FR efficiency level for PE, PP, ABS and HIPS applications. This includes FR8997PS EU, an antimony-free commercially available FR HIPS compound that meets several standards including UL94 V0, UL94 5VA 1.6mm, ASTM E162, NF P 92 503/507 M1-2, and LPS 1207 standards, says Geries.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.clariant.com �
www.italmatch.com �
www.albemarle.com �
www.nabaltec.de �
www.hubermaterials.com �
https://interfacial-chemistry.evonik.com �
www.budenheim.com �
https://bioenvision.no/ �
https://paxymer.se/ �
www.avient.com �
https://www.caiadditives.com/st-sr487 �
www.akro-plastic.com �
www.tolsa.com �
www.techmerpm.com �
www.tosaf.com
www.compoundingworld.com
IMAGE: TOSAF/SHUTTERSTOCK
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