Study on preparation and mechanical performance of TPU/nonwoven composites

Sun, Xichao; Xi, Bojun

doi:10.1088/1757-899x/137/1/012063

Cited by 1 publication

(1 citation statement)

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“…As a commercial engineering elastomer materials, thermoplastic polyurethanes (TPUs) are extensively used in many fields, such as coating materials, wires and cables, and adhesives, because of its excellent processability, good abrasive resistance, high mechanical performance, and sound chemical stability. − However, the high flammability [limiting oxygen index (LOI) about 16–19%] is accompanied by melt–dripping phenomenon, which might induce the terrible spread of fire . Another extreme challenge is the large production of visible smoke and toxic gases in the process of burning, such as CO, HCN, NO x , and so on .…”

Section: Introductionmentioning

confidence: 99%

Preparation of Large-Size Reduced Graphene Oxide-Wrapped Ammonium Polyphosphate and Its Enhancement of the Mechanical and Flame Retardant Properties of Thermoplastic Polyurethane

Zhang

Wang

Yuan

et al. 2017

Ind. Eng. Chem. Res.

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A facile and novel approach is provided to improve the dispersion of large-size reduced graphene oxide (LRGO) in a polymer matrix through attachment on the surface of ammonium polyphosphate (APP) in the medium of (3-aminopropyl) triethoxysilane (APTS). Here, a series of LRGO-wrapped APP (named LRAPP) were first prepared and successfully characterized and then blended into thermoplastic polyurethane (TPU). The introduction of LRGO increased the interfacial adhesion between the APP and polymer, thus achieving remarkable enhancement in mechanical and flame retardant properties. Especially TPU/LRAPP1, where APP is encapsulated by 1% LRGO, can obtain a huge increase in tensile strength and elongation at break (189.7% and 24.6%, respectively) compared to those of TPU/APP. In addition, LRAPP0.5 encapsulated by only 0.5% of LRGO could effectively restrain the melt−dripping phenomenon in TPU composites and acquired the lowest peak heat release rate value of 170.6 kW/m 2 . This novel strategy aims to broaden extensive application of large-size graphene.

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