Differential thermal analysis of polyester/cotton blends treated with Thpc—urea—poly(vinyl bromide)

Hobart, Stanley R.; Mack, Charles H.; Donaldson, D. J.; Neumeyer, Julius P.

doi:10.1016/0040-6031(76)85054-x

Cited by 11 publications

(4 citation statements)

References 7 publications

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“…Beninate et al [434] show similar behaviour if THPOH is used and fabrics can pass the stringent test, DOC FF 3-71. Thermal analytical studies of these systems [435] show that the THP component influences cotton pyrolysis only, whereas the PVBr modifies the behaviour of polyester. Goynes and Carra [436] have increased understanding of the distribution of this finish in the blend by studying surface location and fibre penetration using scanning electron microscopy and dispersive X-ray analysis.…”

Section: Phosphorus-and Nitrogen-containing Systemsmentioning

confidence: 99%

Flame‐retardant Finishing of Textiles

Horrocks¹

1986

Review of Progress in Coloration and Related Topics

206

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The need for flame‐retardant finishing of textiles is examined in the context of the hazards of textile flammability, associated legislation and procedures for assessing textile burning behaviour. The functions of flame‐retardant finishes and durable finishes developed specifically for cellulose, wool and man‐made fibres are described in depth. Multipurpose finishes for both cellulose and wool textiles in which flame retardancy is only one property conferred on the textile are examined. Fibre blends present a particular problem and special attention is paid to discussing those finishes applied to polyester/cotton blended fabrics. The laundering behaviour and consequent finish durability are reviewed. In addition, the effects that applying flame‐retardant finishes have on textile properties and performance are considered. Recent developments in methods used to apply flame‐retardant finishes are outlined.

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Section: Phosphorus-and Nitrogen-containing Systemsmentioning

confidence: 99%

Flame‐retardant Finishing of Textiles

Horrocks¹

1986

Review of Progress in Coloration and Related Topics

206

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“…Figure 2b shows the FTIR spectra of heat-treated polymer at 969 V. This spectrum shows characteristic peak at 3650-3730 cm 21 because of absorbed water [20], and the peak around 2150 and 2000 cm 21 for the strong ketene carbonyl stretch absorption band of Dioxine or C-H out of plane bending vibrations band for benzene or ethylene [21,22]. Another peaks around 663 cm 21 may be because of C¼C aromatic torsion and deformation [16,19] or trans unsaturation bending of CH¼CH [24]. And rest of the peaks for polyester were removed to indicate that polyester has been removed successfully after heat treatment.…”

Section: Ftir Analysis Of Wcw-coated Polymer Before and After Heat Trmentioning

confidence: 94%

“…4. Approximate phase change temperatures for the two endotherms are 2508C for melting of the polyester and 4158C for degradation starting point of the polyester [24]. Therefore, it is found that 4158C is the starting point for polyester degradation and further temperature analysis is done in next section.…”

Section: Ftir Analysis Of Wcw-coated Polymer Before and After Heat Trmentioning

confidence: 97%

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Optimizations of polyester degradation process of waste copper wire for the application of Cu recycling

et al. 2013

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Recycling of waste copper wire (WCW) has attracted much attention as waste has a huge negative impact on the natural environment. In this study, easy, low cost, and highly efficient technique for recycling copper materials from polymer‐coated copper wire was developed using induction heating furnace. Polyester layer on the surface of WCW has been analyzed using FTIR (Fourier Transform Infrared) spectroscopy, Differential Scanning Calorimetry, and Dynamic Thermogravimetric Analysis. As a result, it was confirmed that the polymer coated on the Cu wire, was found to be indeed polyester. A voltage ranging from 562 to 969 V was applied to polymer‐coated WCW using induction furnace to remove the coated polymer layer completely from the surface of WCW. FTIR and NMR (Nuclear magnetic resonance) spectroscopy analyses were performed to investigate degradation mechanism of polyester. After applying 969 V, FTIR spectra showed no significant peak for polyester indicating complete removal. Based on this FTIR and NMR analyses, authors assume that, unsaturated aliphatic hydrocarbons, polycyclic aromatic hydrocarbons, benzene, and ethylene are remained with Ash on the Cu wires as final products. Therefore, Cu recycling was successfully done by removing polyester completely at applied voltage of 969 V. POLYM. ENG. SCI., 54:607–615, 2014. © 2013 Society of Plastics Engineers

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Thermal analyses of flame‐retardant twills containing cotton, polyester and wool

Trask

Beninate

1986

J of Applied Polymer Sci

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SynopsisMedium weight twill fabrics constructed from cotton and cotton blended with polyester and/or wool were analyzed under nitrogen by three thermoanalytical techniques. Fabrics were tested both before and after treatment with [tetrakis(hydroxymethyl)phosphonium] sulfate (THPS), urea, and trimethylolmelamine. The presence of all fibers was distinguishable in differential scanning calorimetric analysis (DSC) of untreated fabrics; the relative positions of the endothermic, decomposition peak temperatures were only slightly changed. After flame-retardant (FR) treatment, the blended cotton and wool fibers were altered. Both fibers decomposed as exotherms during DSC analysis. These data supported earlier microscopical, X-ray evidence that wool fibers were actually reacting with the FR treatment. The two DSC peaks for polyester polymer melting and decomposing remained unaffected by either blending with other fibers or the presence of the FR finish on the fabric. There was excellent agreement between DSC peak temperatures and the temperature of maximum rate of weight loss obtained from thermogravimetric analysis (TGA). Blending cotton with either of these fibers increased the residue measured after TGA. The increased residue correlated with increased flame resistance as measured by the 45" angle, edge-ignition burning rate test.

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Differential thermal analysis of polyester/cotton blends treated with Thpc—urea—poly(vinyl bromide)

Cited by 11 publications

References 7 publications

Flame‐retardant Finishing of Textiles

Flame‐retardant Finishing of Textiles

Optimizations of polyester degradation process of waste copper wire for the application of Cu recycling

Thermal analyses of flame‐retardant twills containing cotton, polyester and wool

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