Enhancing the flame retardancy of lyocell fabric finished with an efficient, halogen-free flame retardant

Abstract

A novel flame retardant (PNPG) containing phosphorus and nitrogen was synthesized based on neopentyl glycol, phosphoric acid and urea, and was then used for preparation of flame retardant lyocell fabric through a dip-dry-cure finishing process.

Ratiometric Upconversion Temperature Sensor Based on Cellulose Fibers Modified with Yttrium Fluoride Nanoparticles

“…Please note that we do not observe any changes in the signal intensities after the performance of thermometric measurements and the performed cycling. Good thermal stability of the prepared materials is ensured by the combination of YF 3 (stable up to 500 °C [ 47 , 48 ]) with regenerated cellulose fibers (stable up to 300 °C [ 49 , 50 ]), which are stable much above the operating temperature range.…”

Synthesis of a phosphorus- and nitrogen-containing flame retardant and the fabrication of flame retardant cotton

“…Meanwhile, the high-temperature baking destroyed the crystal structure of cellulose and, as a result, the arrangement of cellulose molecular chain became irregular and the intermolecular force decreased, resulting in the decreased mechanical properties. 27…”

“…Meanwhile, the high-temperature baking destroyed the crystal structure of cellulose and, as a result, the arrangement of cellulose molecular chain became irregular and the intermolecular force decreased, resulting in the decreased mechanical properties. 27 The bending rigidity is commonly used to describe the stiffness and hand feel of fabric. 27 Compared with the control sample, with the flame retardant concentration increasing, the bending rigidity of the treated sample increased significantly.…”

“…27 The bending rigidity is commonly used to describe the stiffness and hand feel of fabric. 27 Compared with the control sample, with the flame retardant concentration increasing, the bending rigidity of the treated sample increased significantly. The bending rigidity of the FR-cotton fabric increased from 2.903 g/m 2 of the control sample to 3.25, 4.06, 5.25 and 5.42 g/m 2 , which indicated that the stiffness of the treated sample increased, the flexibility became poor and the hand feel became slightly hard.…”

One-pot strategy to simultaneously prepare dyed, flame retardant and UV-resistant silk fabric based on a safflower yellow derivative

“…In gas phase, the active radicals (PO˙ and HPO˙) released by FR-silk during combustion captured the radicals of H˙ and HO˙ that promoted the chain growth reaction of the combustion. 43 At the same time, FR-silk released some non-combustible gases such as CO 2 and NH 3 , which diluted combustible gases and played the role in gas phase. Therefore, compared to the control silk, FR-silk was capable of reducing the release of combustible gases during combustion, while releasing a large amount of non-combustible gas.…”