Preparation and characterization of graphene oxide and it application as a reinforcement in polypropylene composites

Long, Jiapeng; Li, Sanxi; Liang, J. Nellie; Wang, Zhiguo; Liang, Bing

doi:10.1002/pc.24724

Cited by 37 publications

(23 citation statements)

References 22 publications

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“…Through grafting, the hydrophobic groups on the GO surface products compatible with hydrophobic polypropylene were obtained. The GO modified with linear alkyl chain [35], dodecyl amine [36] and phosphorus acid [37] exhibited better dispersion. Simultaneously, with better dispersibility the nucleating ability of the functionalized GO was improved.…”

Section: Introductionmentioning

confidence: 97%

Nucleating agents based on graphene and graphene oxide for crystallization of the β-form of isotactic polypropylene

et al. 2019

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During the investigations, functionalization of graphene oxide synthesized using modified Hummers' method and its reduced form was performed. Mixtures of graphene oxide and reduced graphene oxide with pimelic acid and calcium hydroxide were prepared for functionalization. During the reaction, the molecules of pimelic acid were attached to the surface of graphene sheets. By forming links between the carboxylic groups of pimelic acid and graphene oxide, the durable connection was achieved. The functionalized graphene oxide and the reduced graphene oxide were used as additives in isotactic polypropylene crystallization. The influence of additives on crystallisation in non-isothermal conditions was examined using polarized optical microscopy and differential scanning calorimetry. The effect of the additives on the polypropylene structure was analysed using wide-angle X-ray scattering. For both functionalized compounds, the nucleating ability towards b-form of polypropylene was detected. Both additives showed the increase in the nucleation rate and promotion of growth of the b-form crystals. Nucleation efficiency similar to other nucleating agents used in the crystallization of the b-form of polypropylene was revealed.

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Section: Introductionmentioning

confidence: 97%

Nucleating agents based on graphene and graphene oxide for crystallization of the β-form of isotactic polypropylene

et al. 2019

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“…Various functional treatments or synergistic addition of flame retardants have been performed on graphene surfaces, including the incorporation of P, N, or Si [201][202][203][204][205][206][207][208][209][210][211][212]. Hu et al, [62] synthesized a functionalized graphene oxide (FGO) gra ed to a hyper-branched flame retardant based on N-aminoethyl piperazine and a phosphonate derivative to reduce the flammability and toxic gas release of polystyrene (PS).…”

Section: Graphenementioning

confidence: 99%

Nanoreinforcements of Two-Dimensional Nanomaterials for Flame Retardant Polymeric Composites: An Overview

Hong

Chen

2019

Advances in Polymer Technology

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Polymer materials are ubiquitous in daily life. While polymers are often convenient and helpful, their properties often obscure the fire hazards they may pose. Therefore, it is of great significance in terms of safety to study the flame retardant properties of polymers while still maintaining their optimal performance. Current literature shows that although traditional flame retardants can satisfy the requirements of polymer flame retardancy, due to increases in product requirements in industry, including requirements for durability, mechanical properties, and environmental friendliness, it is imperative to develop a new generation of flame retardants. In recent years, the preparation of modified two-dimensional nanomaterials as flame retardants has attracted wide attention in the field. Due to their unique layered structures, two-dimensional nanomaterials can generally improve the mechanical properties of polymers via uniform dispersion, and they can form effective physical barriers in a matrix to improve the thermal stability of polymers. For polymer applications in specialized fields, different two-dimensional nanomaterials have potential conductivity, high thermal conductivity, catalytic activity, and antiultraviolet abilities, which can meet the flame retardant requirements of polymers and allow their use in specific applications. In this review, the current research status of two-dimensional nanomaterials as flame retardants is discussed, as well as a mechanism of how they can be applied for reducing the flammability of polymers.

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“…[ 7–11 ] These advantages make basalt fiber reinforced polypropylene composites (BFRPPs) to be more suitable for the higher demands occasion compared with ordinary PP composites. [ 12–15 ] The basalt fiber reinforced thermoplastic composites are still in the development stage around the world with great application prospects. [ 8,10,12,14 ] Nevertheless, BFRPPs will inevitably encounter fire situations during the service.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties, flame retardancy, and thermal stability of basalt fiber reinforced polypropylene composites

Wang

Zhong

et al. 2020

Polymer Composites

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In this article, the mechanical properties, flame retardancy, and thermal stability of basalt fiber reinforced polypropylene composites (BFRPPs) and polypropylene (PP) were investigated and compared. The combustion performance and thermal stability of BFRPPs and PP were evaluated by limiting oxygen index (LOI) test, cone calorimeter test (CCT), and thermogravimetric analysis (TGA). The results showed that basalt fibers could enhance mechanical properties, flame retardancy, and thermal stability of PP. With the increase of basalt fiber content, the strength and stiffness of BFRPPs increased significantly, and the elongation decreased obviously. Adding basalt fibers into PP could improve the LOI value. BFRPPs burned appreciably more slowly than PP under the same oxygen concentration. Simultaneously, BFRPPs indicated a better antimelt dripping effect than PP matrix. The heat release rate (HRR), total heat release (THR), rate of smoke release (RSR), and total smoke release (TSR) of BFRPPs decreased compared to PP matrix. Moreover, the addition of basalt fibers to PP could contribute to the formation of a more compact and continuous char layer, which effectively reduced the transfer of heat and oxygen, resulting in a better flame retardancy of BFRPPs.

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Preparation and characterization of graphene oxide and it application as a reinforcement in polypropylene composites

Cited by 37 publications

References 22 publications

Nucleating agents based on graphene and graphene oxide for crystallization of the β-form of isotactic polypropylene

Nucleating agents based on graphene and graphene oxide for crystallization of the β-form of isotactic polypropylene

Nanoreinforcements of Two-Dimensional Nanomaterials for Flame Retardant Polymeric Composites: An Overview

Mechanical properties, flame retardancy, and thermal stability of basalt fiber reinforced polypropylene composites

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