Novel P/Si based nanoparticles for durable flame retardant application on cotton

Abstract

Cotton bers as original materials of cotton fabrics have a widely application due to its perfect hygroscopicity, air permeability and largest annual output. However, cotton materials have potential safety hazard during its application because of ammability (limiting oxygen index is about 18%). In order to improve the ame retardancy of cotton bers and reduce the damage of its mechanical properties, novel P/Si based ame retardant (PFR) nanoparticles were synthesized by one-step radical polymerization. Vinyl phosphoric acid and tetramethyl divinyl disiloxane were introduced into the nanoparticles. The structure, morphology and thermal stability of PFR was characterized by fourier transform infrared spectroscopy (FT-IR), eld emission scanning electron microscopy (FE-SEM), thermogravimetric analysis test (TGA). Durable ame retardant cotton bers were prepared by dip-coating and plasma induced crosslinking methods. Micro-calorimeter (MCC) characterization showed that the peak of heat release rate (pHRR) and the total heat release were reduced by 47.3% and 29.8% for modi ed cotton bers compared with pure cotton bers. Limiting oxygen index (LOI) of modi ed cotton bers was increased to 27%. The residue carbon of modi ed cotton bers was 19.0% at 700 o C, while the value of pure cotton bers was 3.0%. Besides, durability of the modi ed cotton bers was approved by cyclic washing test. In addition, ame retardant mechanism was revealed by collecting and analyzing condensed and gaseous pyrolysis products. The data of FE-SEM for residue carbon, FT-IR spectra of products at different pyrolysis temperatures and pyrolysis gas chromatography mass spectrometry (Py-GC-MS) showed that PFR was a synergistic ame retardant contained barrier and quenching effecting applied on cotton materials.

Synthesis of FePP@MoS2@Ni‐MOF composites for improving thermal and flame retardant safety properties of polyurea

“…Red phosphorus, phosphate, and phosphate ester flame retardants have been extensively researched and utilized. These flame retardants exhibit inherent advantages in both the condensed and gas phases, and when combined with other types of flame retardants, they demonstrate a synergistic effect, resulting in enhanced flame retardancy 17–19 . Aromatic phosphates have relatively high thermal stability, and Wu et al used a composite of phenyl hypophosphite and ammonium polyphosphate (APP) to synergistically modify polylactic acid (PLA) to achieve a vertical combustion rating of V‐0 and a limiting oxygen index (LOI) value of 27.6.…”

“…These flame retardants exhibit inherent advantages in both the condensed and gas phases, and when combined with other types of flame retardants, they demonstrate a synergistic effect, resulting in enhanced flame retardancy. [17][18][19] Aromatic phosphates have relatively high thermal stability, and Wu et al used a composite of phenyl hypophosphite and ammonium polyphosphate (APP) to synergistically modify polylactic acid (PLA) to achieve a vertical combustion rating of V-0 and a limiting oxygen index (LOI) value of 27.6. When both components were used at 10 wt %, the peak heat release rate (pHRR) and total heat release (THR) were reduced by 41.7% and 35.9%, respectively.…”

Multifunctional Superamphiphobic Cotton Fabrics with Highly Efficient Flame Retardancy, Self-Cleaning, and Electromagnetic Interference Shielding

“…However, these methods were too cumbersome and required expensive equipment, making their application difficult on a large scale in practical processes. In contrast, the dip coating method is a convenient and efficient preparation method to impart flame-retardant properties to cotton fabrics. , To satisfy the needs of the environment and flame-retardant effect, we adopted natural phosphorus-containing biomass phytic acid, which has six phosphate groups that can react with cellulose, as a flame retardant.…”

Fabrication of an Eco-Friendly Clay-Based Coating for Enhancing Flame Retardant and Mechanical Properties of Cotton Fabrics via LbL Assembly

“…Abundant hydroxyl groups of cellulose allow extensive surface modification through chemical reactions, the formation of both intermolecular and intramolecular hydrogen bonding [3,4], among others. With the rapid development of flame retardant technology, many methods are applied to flame retardant treatment for textiles including dip coating [5][6][7], spray coating [8], chemical grafting [9,10], plasma treatment [11,12], sol-gel method [13][14][15], and layer-by-layer (LbL) assembly [16][17][18]. The LbL assembly method is a versatile and cost-effective approach to fabricating multilayers on various substrates involving foams, fabrics, paper, and bulk polymers [19].…”