Effect of phosphorous-containing modified poly(vinyl alcohol) on the mechanical and flame retardant properties of polypropylene

Sauca, S.; Giamberini, Marta; Cerruti, Pierfrancesco; Malinconico, Mario; Reina, José Antonio

doi:10.3144/expresspolymlett.2015.31

Cited by 11 publications

(8 citation statements)

References 40 publications

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“…Consequently, performance of the materials with respect to their mechanical and electrical properties and flame retardancy will change gradually with the migration of organic additives [ 17 , 18 ]. Organic additives having an interaction with PVA by chemical bonding or hydrogen bond are a better option to maintain the transparency of polymer when improving the flame retardancy [ 7 , 19 , 20 ] than the inert organic additives. These reactive additives can mix with the matrix at a molecular level by chemical bonding if the polarity and solution parameters of the additives are close to that of the polymer.…”

Section: Introductionmentioning

confidence: 99%

Flame-retardant polyvinyl alcohol membrane with high transparency based on a reactive phosphorus-containing compound

Peng¹,

Zhou²,

Liu³

et al. 2017

R. Soc. open sci.

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Flame-retardant polyvinyl alcohol (PVA) membranes with high transparency and flexibility were prepared by mixing an aqueous solution of a phosphorus-containing acrylic acid (AOPA) with PVA. The reaction between AOPA and PVA, the transparency, the crystallinity and the flexibility of the membrane were investigated with Fourier transform infrared spectrometry (FTIR), UV–vis light transmittance, X-ray diffraction and tensile tests, respectively. The limited oxygen index (LOI) and vertical flame (UL 94 VTM), microscale combustion calorimetry, thermogravimetric analysis (TGA) and TGA-FTIR were employed to evaluate the flame retardancy as well as to reveal the corresponding mechanisms. Results showed that PVA containing 30 wt% of AOPA can reach the UL 94 VTM V0 rating with an LOI of 27.3% and retain 95% of the original transparency of pure PVA. Adding AOPA reduces crystallinity of PVA, while the flexibility is increased. AOPA depresses the thermal degradation of PVA and promotes char formation during combustion. The proposed decomposition mechanism indicates that AOPA acts mainly in the condensed phase.

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Section: Introductionmentioning

confidence: 99%

Flame-retardant polyvinyl alcohol membrane with high transparency based on a reactive phosphorus-containing compound

Peng¹,

Zhou²,

Liu³

et al. 2017

R. Soc. open sci.

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“…In parallel with the continually increasing use of plastics, the issue of fire safety has come to the forefront. Flame retardancy of polymers has become essential in many application fields such as transportation, construction, and electrical industries [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Effect of Particle Size of Additives on the Flammability and Mechanical Properties of Intumescent Flame Retarded Polypropylene Compounds

Bocz

Krain

Marosi

2015

International Journal of Polymer Science

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The effect of particle size reduction of the components of a common intumescent flame retardant system, consisting of pentaerythritol (PER) and ammonium polyphosphate (APP) in a weight ratio of 1 to 2, was investigated on the flammability and mechanical performance of flame retarded polypropylene (PP) compounds. Additives of reduced particle size were obtained by ball milling. In the case of PER, the significant reduction of particle size resulted in inferior flame retardant and mechanical performance, while the systems containing milled APP noticeably outperformed the reference intumescent system containing asreceived additives. The beneficial effect of the particle size reduction of APP is explained by the better distribution of the particles in the polymer matrix and by the modified degradation mechanism which results in the formation of an effectively protecting carbonaceous foam accompanied with improved mechanical resistance. Nevertheless, 10% higher tensile strength was measured

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“…10 It gives the possibility to combine the benefits of halogenated flame retardants with environmental and health ideas. Other suitable solutions are given by halogen-free flame retardants, like a combination of phosphorus-and sulfur-containing flame retardants [11][12][13] or inorganic flame retardants. [14][15][16] The melting of EPS foam during a fire can cause problems in building insulation applications.…”

Section: Introductionmentioning

confidence: 99%

Flame-retardant hybrid materials based on expandable polystyrene beads

Reuter

Standau

Altstädt

et al. 2020

Journal of Fire Sciences

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A highly efficient flame-retardant hybrid foam material combining expandable polystyrene foam beads and a waterborne resin equipped with inorganic flame retardants is described. The resin and the inorganic fillers were varied, and the different compositions were investigated in small burner and cone calorimeter tests. The burning time during the small burner test decreases from >60 s for neat expandable polystyrene to 0 s for optimized hybrid specimens. The peak of the heat release rate decreases from 661.0 kW/m2 for neat expandable polystyrene to 121.36 kW/m2 for a hybrid composition of 1:1:1 (expandable polystyrene:aluminum hydroxide:phenol formaldehyde resin). The hybrid materials containing inorganic flame retardants are burning slower and release heat and smoke more constantly at significantly lower rates. Furthermore, a continuous network of the cured thermoset is shown, which leads to embedded expandable polystyrene beads. The flame-retardant thermoset protects the expandable polystyrene from fire and leads to a material with high dimensional stability and efficient flame retardancy.

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Effect of phosphorous-containing modified poly(vinyl alcohol) on the mechanical and flame retardant properties of polypropylene

Cited by 11 publications

References 40 publications

Flame-retardant polyvinyl alcohol membrane with high transparency based on a reactive phosphorus-containing compound

Flame-retardant polyvinyl alcohol membrane with high transparency based on a reactive phosphorus-containing compound

Effect of Particle Size of Additives on the Flammability and Mechanical Properties of Intumescent Flame Retarded Polypropylene Compounds

Flame-retardant hybrid materials based on expandable polystyrene beads

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