Enhancing the Flame Retardancy of UV Curable Polyurethane Acrylate Coated Films with Alumina Trihydrate Filling

Kalav, Berdan; İşmar, Ezgi; Kayaoğlu, Burçak Karagüzel

doi:10.21605/cukurovaummfd.637557

Cited by 2 publications

(3 citation statements)

References 43 publications

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“…Various oxides are commonly used such as Zinc oxide and Antimony trioxide. 20,21 In both halogen-containing and halogen-free polymers, borates serve as flame retardants, smoke suppressants, afterglow suppressants, and antitracking agents. Boric acid (BA) and sodium borates are two well-known boron compounds.…”

Section: Introductionmentioning

confidence: 99%

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Designing of layered double hydroxide, metal oxides, and borate‐reinforced thermoplastic polyurethanes composites

Desai,

Kamble,

Ozarkar

et al. 2024

Polymers for Advanced Techs

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Thermoplastic polyurethanes (TPUs) are widely used in automotive, medical, and marine applications due to their excellent properties such as high tensile strength, flexibility, and durability. However, the presence of isocyanate groups in TPUs increases their flammability and produces toxic gases during combustion, limiting their application. Here, the study aims to modify TPUs to improve their flame‐retardant behavior. Various fillers such as metal oxides, Layer double hydroxides (LDH), and borates were synthesized and added into the TPU matrix by using extrusion and compression molding. At a 10% loading of Zinc‐Magnesium oxides, a limiting oxygen index (LOI) of 25% was achieved, along with no dripping and complete burning cessation within 20 s. Magnesium aluminium LDH exhibited maximum flame retardancy at a 5% loading, with an LOI of 25%, burning cessation within 23 s without dripping, and a V1 rating. Overall, this research aims to develop TPU composites with improved fire safety properties by incorporating various additives. The synthesized additives showed potential for enhancing the mechanical, thermal, and flame‐retardant properties of TPU.

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Section: Introductionmentioning

confidence: 99%

“…As a barrier to keep oxygen and heat from penetrating the underlying substance, metal oxides can also take the form of a protective layer on the material's surface. Various oxides are commonly used such as Zinc oxide and Antimony trioxide 20,21 …”

Section: Introductionmentioning

confidence: 99%

Designing of layered double hydroxide, metal oxides, and borate‐reinforced thermoplastic polyurethanes composites

Desai,

Kamble,

Ozarkar

et al. 2024

Polymers for Advanced Techs

View full text Add to dashboard Cite

show abstract

“…The rest of production undergo large chemical and thermal treatments, size dimensions classification, as well as other required finishing operations for being used in the wide-ranging new high technology applications. Aluminum hydroxide and its related products highly required on the market are very important materials with various industrial applications, mainly as: filers and fire retardants [7][8][9][10][11][12][13][14][15][16][17][18][19], desiccants [20][21][22][23][24][25][26], adsorbents and water purification reactants [27][28][29][30][31][32][33][34][35][36][37], coating materials [38][39][40][41][42][43][44][45][46][47], composite materials [48][49][50][51][52]…”

Section: Introductionmentioning

confidence: 99%

Short review on mechanical activation in non-metallurgical alumina production

Kim¹,

Dobra²,

Isopescu³

et al. 2022

RJEEC

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The terms mechano-chemistry and mechanical activation of solid materials were introduced in chemical literature by Ostwald at the beginning of the XX century. Both terms cover a whole range of interconnected phenomena taking place during the mechanical action on solids or their separate parts participating in chemical reactions, phase transitions, mixing and creating composite materials, alloying and crystal growth in the solid state, deformation and changing physical and thermal properties, all of them at low temperature. The common effects of the mechanical activation on solid material are fracturing and reduction of particle sizes, generation of new reactive surfaces, diffusion of atoms of the reactant phase through the product phase, and quite significantly, accumulating energy in crystalline or amorphous structure (enough twists in atomic and molecular networks, tensions in atomic bond and active sites to trigger the nucleation of new phases). Mechanical activation is very used to produce all clean alumina mineralogical phases with uniform particle size dimensions from nano to macro size. Also, mechanical activation may extend the specific surface of some minerals, enhancing the yields in the solid-liquid extraction process. With adequate precursors, all phase transitions from amorphous to alfa α-Al2O3 can be carried out on the same route as in thermally activated alumina, but some other routes, impossible by thermal activation, might be followed. The difference between the two activation ways is that mechanical activation is made at room temperature.

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Enhancing the Flame Retardancy of UV Curable Polyurethane Acrylate Coated Films with Alumina Trihydrate Filling

Cited by 2 publications

References 43 publications

Designing of layered double hydroxide, metal oxides, and borate‐reinforced thermoplastic polyurethanes composites

Designing of layered double hydroxide, metal oxides, and borate‐reinforced thermoplastic polyurethanes composites

Short review on mechanical activation in non-metallurgical alumina production

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