Silicone Resins and Their Use as Flame Retardants in Polymer Compositions

Patent– (Specialchem):Branched silicone (organopolysiloxane) resins and preparation method and use thereof are provided, which contain at least one group selected from phosphonate and phosphinate groups and at least one organic group containing nitrogen. Such silicone resins can be used in thermoplastic, thermosetting or rubber organic polymer compositions to reduce the flammability of the organic polymer compositions. pdf of patent: click here

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Flame retarded polymer nanocomposites: Development, trend and future perspective

A review article was published by HaiYun Ma, PingAn Song and ZhengPing Fang : read this article HERE

New amino phosphate based flame retardant approved for use in construction materials

Pinfa:   JJI Technologies’ amino phosphate based flame retardant system JJAZZ has passed the ASTM E84 Class B Standard Test Method for Surface Burning Characteristics of Building Materials. The test looks at surface burning, measuring flame spread, temperature and smoke density. The product is designed to improve materials’ physical performance, increase fire extinguishing efficiency, and simplify compounding. The flame retardant is available as a powder and pelletized concentrate form intended for use in polyolefin plastics, is halogen-free and conform to EU Restriction of Hazardous substances (RoHS), EU Waste Electrical Electronic Equipment (WEEE), and Canadian Challenge regulations.

Further information: “Non-halogen flame retardant meets ASTM B&C standard”, 31st March 2011, www.jji-technologies.com contact: David.Diefenthal@jji-technologies.com

 

Flame Retardant ABS with a Novel Polyphosphate Derived from Biomass

Scientific.NET:  In recent years, diphenolic acid (DPA) has been attracted much attention because it can be produced on large scale from phenol and levulinic acid, a potentiel platform chemical from biomass. poly(diphenolic phenyl phosphate)(poly(DPA-PDCP) was synthesized and used as in ABS as FR .

Acrylonitrile-butadiene-styrene (ABS) was treated with various formulations containing an intumescent fire retardant, which consists of ammonium polyphosphate (APP) and a novel char-forming agent, poly(diphenolic phenyl phosphate)(poly(DPA-PDCP)). The behaviour of this intumescent system was investigated by thermogravimetric analysis (TGA), LOI test and cone calorimeter test, respectively. The results showed that the addition of poly(DPA-PDCP) enhanced the thermal stability and flame retardancy of ABS/APP. The weight of residues improved with the addition of poly(DPA-PDCP) . SEM investigations of residual char burning after cone calorimeter test revealed that poly(DPA-PDCP) plays an stimulative role in the process of carbonization. The intumescent chars formed from ABS/APP/ poly(DPA-PDCP) composites were intact and strong. It is confirmed that the poly(DPA-PDCP) is an efficient char-forming agent for flame retardant ABS resin.

Pekoflam® ECO/SYN: Clariant’s new generation flame retardant

The Pekoflam® process is based on a synergistic application of phosphorus and nitrogen,” explains Thomas Winkler, Head of Clariant’s Business Unit Textile Chemicals. “When we were examining the methods currently in use for creating fire retardant textiles as part of our innovation program, we knew we had to move away from traditional methods and get rid of any formaldehyde emissions. Balancing our innovation parameters of cost effectiveness, safety and sustainability, while at the same time providing a viable, commercial solution for our partners in the global textile industry, has taken some three years of research and development where the final solution was jointly developed utilizing an external research & development partnership. The result has been worth the wait.”

The new bi-component Pekoflam® system – ECO for ecological and economic, SYN for synergy – has a very low impact on the fabric strength to which it is applied. Importantly, it also has excellent wash fastness in domestic laundry situations and good performance in industrial applications. Unlike some systems, processing can be done on common finishing lines with HT (high temperature) curing and a suitable wash range.   Read more: Click Here

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