search.noResults

search.searching

dataCollection.invalidEmail
note.createNoteMessage

search.noResults

search.searching

orderForm.title

orderForm.productCode
orderForm.description
orderForm.quantity
orderForm.itemPrice
orderForm.price
orderForm.totalPrice
orderForm.deliveryDetails.billingAddress
orderForm.deliveryDetails.deliveryAddress
orderForm.noItems
ADDITIVES | FLAME RETARDANTS


Right: Addition of a Cloisite clay-based additive to an HFFR com- pound can considerably reduce dripping


marketed by the company as Dragonite, can also be used as a substitute for antimony trioxide in halogenated systems. “Dragonite APA grade is our next generation


flame retardant that has been organically modified with a proprietary technology to enhance Drago- nite’s intrinsic flame performance,” says Sales Direc- tor Brian Newsome. He says it allows users to reduce overall use of flame-retardant additives while maintaining a VW-1 rating. “Moreover, Dragonite, due to its large aspect ratio and surface area, has been shown to improve the mechanical properties of a polymer matrix,” he adds. A 5%-8% loading of Dragonite APA will improve the flame-retardant properties of a system, main- tain or improve mechanical properties and allow for a reduction of approximately 10%-16% of the ATH or MDH used, Newsome says. In halogenated systems it can replace 75% of any antimony trioxide. “Dragonite APA not only presents a compelling cost-performance value proposition, but also received the highest toxicology rating of all halogen-free flame retardants by industry oversight firm Green Screen,” he says. Applied Minerals earlier this year announced


Below: Limiting oxygen index (LOI) testing of an EVA-based compound


containing 58% ATH and 3.6% Byk-LPT 23617 shows rapid char formation (tested to ISO 4589-1/2/3; 32% O2


)


that a leading developer of flame-retardant applications had completed a successful plant trial of Dragonite. Company President and CEO Andre Zeitoun says that Dragonite “outperformed all other competing flame-retardant additives evalu- ated by the customer.


Functional polymers Paxymer is taking a different approach to syner- gists. Managing Director Amit Paul says the com- pany continues to work with its synergistic technol- ogy based on functional polymers. Paxymer’s synergist is focused for polyolefin-based plastics and works as a synergist both for P, P/N and mineral-based compounds. Paul says the company


spent this year implementing and verifying its technology in a number of applications. Electrical and optical conduits have been two successful applications, Paul says. “The interest in the company’s synergistic technology has in- creased drastically and the main users are com- pounders. Development projects range from building and construction to electric and train applications. “The first work was focused mainly as a synergist


to Adeka products. User cases, guidance formula- tions and recommendations are now also being developed on how to synergise and optimise formulations based on Clariant, Thor, JLS, Buden- heim and other leading PIN supplier products. The synergist allows for total FR content for a V-0 to be reduced to around 20-25% compared to 25-35% with the additives alone.” Main benefits are lower total cost for the FR package, improved process and performance, improved FR including improved dripping and reduction of heat release rate, Paul concludes.


Intumescent FRs Adeka itself says its ADK Stab FP-2000 series of intumescent flame retardants generate almost no black smoke and acidic gases during combustion, forming a hard char in various fire test scenarios. The company says tests carried out according to ISO 5659-2 (25 kW/m2 m2


without pilot flame) on a polypropylene


formulation containing ADK Stab FP-2500S showed that the additive could depress the generation of toxic gases to a level much lower not only than that produced with a PP formulation using a brominat- ed flame retardant but also one containing no flame retardants at all: the CITG (Conventional Index of Toxicity) value registered was below 0.1. The company has recently extended this series


with ADK Stab FP-2600U, for thermoplastic polyurethanes (TPUs). It says that unmodified TPU


46 COMPOUNDING WORLD | December 2018 www.compoundingworld.com


with pilot flame and 50 kW/


PHOTO: BYK


PHOTO: BYK


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  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81  |  Page 82  |  Page 83  |  Page 84