Synergistic effects of boron-doped silicone resin and a layered double hydroxide modified with sodium dodecyl benzenesulfonate for enhancing the flame retardancy of polycarbonate

Jiang, Yi; Hao, Zhifeng; Luo, Hongsheng; Shao, Zehui; Yu, Qian; Sun, Ming; Ke, Yanxiong; Chen, Yilong

doi:10.1039/c8ra01086b

Cited by 25 publications

(20 citation statements)

References 41 publications

(49 reference statements)

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“…Jiang and others [ 107 ] developed a new synergistic flame retardant system, composed of layered double hydroxide (LDH) modified by boron-doped silicone resin (BSR) and sodium dodecylbenzene sulfonate (SDBS), denoted as DBS-LDH/BSR (as shown in Figure 4 ). The synergistic application of a flame retardant to a polycarbonate can promote the formation of polycarbonate carbon, improve the flame retardant grade as assessed via a vertical combustion test, increase LOI and reduce the peak heat release rate in the cone calorimetry test.…”

Section: Preparation Of Flame-retardant Polymer Materialsmentioning

confidence: 99%

The Flame-Retardant Mechanisms and Preparation of Polymer Composites and Their Potential Application in Construction Engineering

et al. 2021

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Against the background of people’s increasing awareness of personal safety and property safety, the flame retardancy (FR) of materials has increasingly become the focus of attention in the field of construction engineering. A variety of materials have been developed in research and production in this field. Polymers have many advantages, such as their light weight, low water absorption, high flexibility, good chemical corrosion resistance, high specific strength, high specific modulus and low thermal conductivity, and are often applied to the field of construction engineering. However, the FR of unmodified polymer is not ideal, and new methods to make it more flame retardant are needed to enhance the FR. This article primarily introduces the flame-retardant mechanism of fire retardancy. It summarizes the preparation of polymer flame-retardant materials by adding different flame-retardant agents, and the application and research progress related to polymer flame-retardant materials in construction engineering.

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Section: Preparation Of Flame-retardant Polymer Materialsmentioning

confidence: 99%

The Flame-Retardant Mechanisms and Preparation of Polymer Composites and Their Potential Application in Construction Engineering

et al. 2021

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“…Flammability properties of hybrid natural fiber composites have been investigated by employing the UL 94 burning rates, cone calorimeter and limiting oxygen index (LOI) measurements. Table 8 illustrates the limiting oxygen index (LOI) and the heat release rate (HRR) of selective polymer matrices [63,[154][155][156][157][158][159][160][161][162][163][164][165][166][167][168][169]. Generally, a material with a higher LOI will have a lower flammability than the one with a lower LOI value.…”

Section: Biological Durabilitymentioning

confidence: 99%

Recent progress on natural fiber hybrid composites for advanced applications: A review

Mochane¹,

Mokhena²,

Mokhothu³

et al. 2019

Express Polym. Lett.

307

151

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Natural fibers, as replacement of engineered fibers, have been one of the most researched topics over the past years. This is due to their inherent properties, such as biodegradability, renewability and their abundant availability when compared to synthetic fibers. Synthetic fibers derived from finite resources (fossil fuels) and are thus, affected mainly by volatility oil prices and their accumulation in the environment and/or landfill sites as main drawbacks their mechanical properties and thermal properties surpass that of natural fibers. A combination of these fibers/fillers, as reinforcement of various polymeric materials, offers new opportunities to produce multifunctional materials and structures for advanced applications. This article intends to cover recent developments from 2013-up to date on hybrid composites, based on natural fibers with other fillers. Hybrid composites preparation and characterization towards their applicability in advanced applications and the current challenges are also presented.

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“…Since sulfonate salts are known to act in the condensed phase [10], the mountain-shaped performance of KSS with its concentrations might suggest that KSS first promotes the char formation of PC at low loadings and then destabilizes the char at high loadings. On the other hand, KTSS possesses silicon which has a stabilizing action on the char [11,22], so it can be made possible for PC to unceasingly attain improved LOI values although the gains decrease at high loadings of KTSS.…”

Section: Flammabilitymentioning

confidence: 99%

“…However, the amount of char is reduced upon the addition of KTSS and PC is almost completely burnt out in the presence of 0.1% KTSS, suggesting that the long term thermo-oxidative stability of intermediate chars is relatively low. stabilizing action on the char [11,22], so it can be made possible for PC to unceasingly attain improved LOI values although the gains decrease at high loadings of KTSS. Among the three sulfonate salts, KBS shows a much inferior performance.…”

Section: Cone Calorimeter Test (Cone) Analysis Of Flame Retardant Pcmentioning

confidence: 99%

An Extremely Efficient Silylated Benzensulfonate Flame Retardant for Polycarbonate

Yao

Cao

et al. 2020

Materials

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An extremely efficient flame retardant with low water solubility has been developed for bisphenol-A based polycarbonate. Potassium trimethylsilylbenzenesulfonate (KTSS) combining trimethylsilyl and sulfonate groups in its molecule is 7 times less water soluble and 5 times more effective in flame retardancy than potassium benzenesulfonylbenzenesulfonate (KSS), the commercial workhorse for polycarbonate (PC). At a loading of 0.02%, KTSS enables PC to achieve a solid UL-94 V0 rating and a limiting oxygen index (LOI) value of 34.4%, representing an increase of 8.5 units. The extremely high efficiency of KTSS stems from its great migration ability to the burning polymer surface facilitated by trimethylsilyl group, its timely release of active alkaline species that promote the charring process of PC, and the stabilization of char by silicon. In addition to the exceptional flame retardancy, PC/KTSS retains excellent physical properties of PC.

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Synergistic effects of boron-doped silicone resin and a layered double hydroxide modified with sodium dodecyl benzenesulfonate for enhancing the flame retardancy of polycarbonate

Abstract: Boron-doped silicone resin (BSR) combined with a layered double hydroxide (LDH) modified with sodium dodecyl benzenesulfonate (SDBS) to improve the flame retardancy of polycarbonate (PC).

Cited by 25 publications

References 41 publications

The Flame-Retardant Mechanisms and Preparation of Polymer Composites and Their Potential Application in Construction Engineering

The Flame-Retardant Mechanisms and Preparation of Polymer Composites and Their Potential Application in Construction Engineering

Recent progress on natural fiber hybrid composites for advanced applications: A review

An Extremely Efficient Silylated Benzensulfonate Flame Retardant for Polycarbonate

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