Flame-retardant and anti-dripping coating for PET fabric with hydroxyl-containing cyclic phosphoramide

The purpose of this research is to improve ignition properties and anti-dripping of polyester fabric by using adhesion promoter (AP). The ignition properties of the untreated and treated specimens with durable flame retardant coating and non-durable flame retardant coating were estimated by horizontal flame chamber (UL-94), single-flame source and limiting oxygen index (LOI). The chemical structures of the pre- and final composites have been determined by Fourier transform infrared spectra with attenuated total reflection analysis spectroscopy. The mechanical tests and thermal properties were applied to study their tensile strength and thermal behaviors. The results show that AP has improved the flame retardancy and dripping of PET fabric compared to blank. The char yield increased from 8% to 18%, LOI from 17.5% to 27.5%.

Download Full-text

Nacre-mimetic CH/MMT fabrication coating on PET fabric for improving anti-dripping performance

International Journal of Clothing Science and Technology ◽

10.1108/ijcst-10-2019-0154 ◽

2020 ◽

Vol 32 (6) ◽

pp. 803-812

Author(s):

Yinchun Fang ◽

Xinhua Liu ◽

Wenqing Fei

Keyword(s):

Flame Retardant ◽

Flame Retardancy ◽

Thermo Gravimetric Analysis ◽

Original Research ◽

Gravimetric Analysis ◽

Experimental Basis ◽

Limiting Oxygen Index ◽

Content Type ◽

Pet Fabric ◽

Assembly Method

PurposePET fiber is widely used in many fields, such as clothing and decorative materials. However, the high flammability and dripping problem restrict its applications. It is vital for PET fiber to overcome these two main drawbacks for practical applications.Design/methodology/approachIn this paper nacre-mimetic flame retardant coating of chitosan (CH) and Montmorillonite (MMT) was fabricated on PET fabrics through the layer-by-layer assembly method. The flame retardancy and anti-dripping performance of the treated PET fabric were investigated.FindingsThe results of limiting oxygen index (LOI) value and vertical burning test revealed the anti-dripping performance of PET fabrics which was greatly improved, while the flame retardancy has not been improved. The dripping phenomena was eliminated when the CH/MMT bilayers were over 5 BL. Thermo gravimetric analysis (TGA) results revealed that nacre-mimetic coated CH/MMT bilayers on PET fabrics would promote the char formation both under nitrogen atmosphere and under air atmosphere indicating the obviously condensed phase flame retardant action. scanning electron microscopy (SEM) images of the char residues revealed that coated PET fabrics would promote the formation of char.Research limitations/implicationsHowever, the char was an unstable char which would further combust to change the thermal degradation and combustion process of PET fabric. Though PET fabric coated by this CH/MMT nacre-mimetic system had no flame retardancy, the anti-dripping performance was greatly improved. This research would provide experimental basis for improving the anti-dripping performance for thermoplastic materials.Originality/valueThis research is the original research for the flame retardant treatment by fabrication nacre-mimetic CH/MMT coating on PET fabric, which has not been reported previously. This research would provide experimental basis for improving the anti-dripping performance for thermoplastic polymer fabrics.

Download Full-text

Layer-by-layer assembly of silica-based flame retardant thin film on PET fabric

Polymer Degradation and Stability ◽

10.1016/j.polymdegradstab.2011.02.019 ◽

2011 ◽

Vol 96 (5) ◽

pp. 745-750 ◽

Cited By ~ 160

Author(s):

Federico Carosio ◽

Galina Laufer ◽

Jenny Alongi ◽

Giovanni Camino ◽

Jaime C. Grunlan

Keyword(s):

Thin Film ◽

Flame Retardant ◽

Layer By Layer ◽

Pet Fabric ◽

Layer By Layer Assembly ◽

Layer Assembly

Download Full-text

Application of a novel plasma-based method of introducing maleic acid and pentaerythritol phosphate urea salt onto polyester fabrics for durable flame-retardant treatment

Textile Research Journal ◽

10.1177/0040517519845685 ◽

2019 ◽

Vol 89 (23-24) ◽

pp. 4916-4928 ◽

Cited By ~ 1

Author(s):

Tianchi Zhou ◽

Yangyang Wang ◽

Haodong Xu ◽

Lu Cai ◽

Yanchun Liu ◽

...

Keyword(s):

Flame Retardant ◽

Photoelectron Spectroscopy ◽

Maleic Acid ◽

Negative Impact ◽

Combustion Process ◽

Temperature Plasma ◽

Polymer Backbone ◽

Limiting Oxygen Index ◽

Excellent Thermal Stability ◽

Pet Fabric

In this work, a novel anti-flame poly(ethylene terephthalate) (PET) fabric was successfully fabricated by plasma-based technology combined with pad-dry-cure treatment finishing. Low-temperature plasma can graft maleic acid (MA) onto a PET polymer backbone, which can activate the PET fiber and provide the opportunity of reaction with pentaerythritol phosphate urea salt (PEPAS) to achieve an excellent and durable anti-flame ability. Furthermore, the chemical reaction between PET-MA and PEPAS can form a complex and compact net structure that can effectively improve the anti-dripping property of PET. Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and scanning electron microscopy analysis showed that MA and PEPAS were successfully introduced onto the surface of the PET fabric, and a compact protective carbon layer was formed during the combustion process due to the synergistic effect of phosphorus and nitrogen. The flame-retardant and anti-dripping properties were evaluated by thermogravimetric analysis, the limiting oxygen index (LOI) and a vertical burning test. The treated samples showed the maximum LOI value of 29.3, possessing excellent thermal stability and self-extinguishing ability and inhibiting melt-dripping ability. Moreover, tensile strength at break of the treated PET fabric was slightly greater than that of the original PET fabric, indicating that this type of treatment had little negative impact on the bulk of the PET fabric. After 20 laundering cycles, the LOI value of the treated sample still remained at 26.8, which indicated durability in the flame-retarding effect.

Download Full-text

A flame-retardant PET fabric coating: Flammability, anti-dripping properties, and flame-retardant mechanism

Progress in Organic Coatings ◽

10.1016/j.porgcoat.2020.105971 ◽

2021 ◽

Vol 150 ◽

pp. 105971

Author(s):

Ye Tao ◽

Chang Liu ◽

Ping Li ◽

Bin Wang ◽

Ying-Jun Xu ◽

...

Keyword(s):

Flame Retardant ◽

Pet Fabric

Download Full-text

Durable flame retardant hybrid sol–gel coating on poly(ethylene terephthalate) fabric and its flame retardant mechanism

Textile Research Journal ◽

10.1177/00405175211040874 ◽

2021 ◽

pp. 004051752110408

Author(s):

Gu Wei ◽

Chang Shuo

Keyword(s):

Heat Release ◽

Flame Retardant ◽

Photoelectron Spectroscopy ◽

Ethylene Terephthalate ◽

Sol Gel ◽

Hybrid Coating ◽

Dynamics Simulation ◽

Pet Fabric ◽

Poly Ethylene Terephthalate ◽

Poly Ethylene

In this paper, an organic/inorganic phosphorus and silicon-containing coating was prepared by the sol–gel method and its flame retardant mechanism for poly(ethylene terephthalate) (PET) fabrics was thoroughly investigated. The influence of hybrid coating on PET fabric was investigated by the limited oxygen index (LOI), vertical flammability test (VFT) and microscale combustion calorimetry (MCC). The results revealed that the LOI of the coated PET fabric was up to 29.2% and no dripping was observed in the VFT. MCC results showed that hybrid coating reduced the peak heat release rate, heat release capacity and total heat release of PET fabric. Thermogravimetric analysis demonstrated increased thermal stability and char residue of PET fabrics due to the hybrid coating. Furthermore, the char residues were studied by X-ray photoelectron spectroscopy and scanning electron microscopy. The above results proved that the synergistic effect between the 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide group and the silicon network played a key role in the flame retardancy of PET fabrics. In addition, the durability of coated PET fabrics was interpreted by calculating the interaction energy through molecular dynamics simulation.

Download Full-text