Material Design for Fire Safety in Wire and Cable Applications

Cogen, Jeffrey M.; Lin, Thomas S.; Whaley, P. W.

doi:10.1201/9781420084009-c26

Cited by 6 publications

(6 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The adopted EVA-PE blend was composed of 67 parts of EVA, 17 parts of LLDPE and 16 parts of Fusabond N493 [19,20,21]. This formulation constitutes the polymer matrix (EVA/LLDPE/compatibilizer) coded as E-PE.…”

Section: Methodsmentioning

confidence: 99%

Improving Mechanical Properties and Reaction to Fire of EVA/LLDPE Blends for Cable Applications with Melamine Triazine and Bentonite Clay

et al. 2019

View full text Add to dashboard Cite

The high flame-retardant loading required for ethylene-vinyl acetate copolymer blends with polyethylene (EVA-PE) employed for insulation and sheathing of electric cables represents a significant limitation in processability and final mechanical properties. In this work, melamine triazine (TRZ) and modified bentonite clay have been investigated in combination with aluminum trihydroxide (ATH) for the production of EVA-PE composites with excellent fire safety and improved mechanical properties. Optimized formulations with only 120 parts per hundred resin (phr) of ATH can achieve self-extinguishing behavior according to the UL94 classification (V0 rating), as well as reduced combustion kinetics and smoke production. Mechanical property evaluation shows reduced stiffness and improved elongation at break with respect to commonly employed EVA-PE/ATH composites. The reduction in filler content also provides improved processability and cost reductions. The results presented here allow for a viable and halogen-free strategy for the preparation of high performing EVA-PE composites.

show abstract

Section: Methodsmentioning

confidence: 99%

Improving Mechanical Properties and Reaction to Fire of EVA/LLDPE Blends for Cable Applications with Melamine Triazine and Bentonite Clay

et al. 2019

View full text Add to dashboard Cite

show abstract

“…As zinc borate is used as a flame retardant additive, particularly in polymers, particle size is of great importance to its industrial applications. For example, in wire and cable applications, finer particle sizes of flame retardant additives are utilized for higher limiting oxygen index (LOI) values, improved mechanical properties, lower brittleness temperatures, and smoother surface characteristics [11].…”

Section: Industrial Scale Product Specificationmentioning

confidence: 99%

Production of fine zinc borate in industrial scale

Çakal

2012

CI&CEQ

View full text Add to dashboard Cite

In this study, zinc borate production in an industrial scale batch reactor was carried out at the optimum process conditions determined in the previous studies performed at the laboratory and pilot scale reactors. The production was done via the heterogeneous reaction of boric acid and zinc oxide. The samples were characterized by chemical analysis, XRD, TGA, SEM and particle size distribution. The final product which was obtained in the industrial scale reactor was 2ZnO.3B2O3.3H2O. The kinetic data for the zinc borate production reaction fit to a modified logistic model where the lag time was taken into account. As observed, the reaction time was influenced by scaling up. There was a lag time of 120 min for the industrial scale production and thus, the reaction completion time was 70 min longer compared to pilot scale. It should be emphasized that the specific reaction rate, k; as well as the average particle size and the hydration temperature of zinc borate are unaffected by scale up

show abstract

“…Cables can be classified according to the materials composing their sheath. Polyvinyl chloride (PVC) and low-density polyethylene (LDPE), and its copolymers such as EVA (ethylene-vinyl acetate), are the main polymer types used for wire and cable insulation [1]. Since the 1950s, PVC has played a dominant role in cable sheathing due to its very good processing properties, flexibility and fire behavior.…”

Section: Introductionmentioning

confidence: 99%

Study of gases released under incomplete combustion using PCFC–FTIR

Decimus

Sonnier

Zavaleta

et al. 2019

J Therm Anal Calorim

View full text Add to dashboard Cite

In order to get new insights on cable behavior during real-scale fires, the gases released under incomplete combustion in pyrolysis combustion flow calorimeter were recorded for several PVC and halogen-free flame-retardant cables. Incomplete combustion was monitored by changing combustion temperature between 600 and 900°C. Gases were identified using PCFC-FTIR coupling. Quantitative assessment of different gases produced during combustion was also carried out. It appears that larger amounts of unburnt gases are produced for PVC cable at low temperature (\ 650°C). Moreover, CO release is observed for PVC cable up to 800°C while this gas disappears between 700 and 750°C for halogen-free flameretardant cables. Interestingly, the CO production is non-monotonous upon the temperature range investigated. These analyses would be useful to assess the risk of multiple re-ignitions during cable burning in real-scale fires, especially in confined compartments.

show abstract

Material Design for Fire Safety in Wire and Cable Applications

Cited by 6 publications

References 56 publications

Improving Mechanical Properties and Reaction to Fire of EVA/LLDPE Blends for Cable Applications with Melamine Triazine and Bentonite Clay

Improving Mechanical Properties and Reaction to Fire of EVA/LLDPE Blends for Cable Applications with Melamine Triazine and Bentonite Clay

Production of fine zinc borate in industrial scale

Study of gases released under incomplete combustion using PCFC–FTIR

Contact Info

Product

Resources

About