Constructing multifunctional nanofiller with reactive interface in PLA/CB-g-DOPO composites for simultaneously improving flame retardancy, electrical conductivity and mechanical properties

Wen, Xin; Liu, Zhiqi; Li, Zhi; Zhang, Jing; Wang, De‐Yi; Szymańska, Karolina; Chen, Xuecheng; Mijowska, Ewa; Tang, Tao

doi:10.1016/j.compscitech.2019.107988

Cited by 114 publications

(37 citation statements)

References 58 publications

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“…The synthesis of DM was according to Wangtai Yang's previous work 21 . In 2.45 g maleic anhydride, 1.3 g styrene, and 37.5 mg azobisisobutyronitrile (AIBN) as initiator were added into a 100 ml three‐necked flask containing 25 ml isopentyl acetate.…”

Section: Methodsmentioning

confidence: 99%

A novel hollow microsphere acting on crystallization, mechanical, and thermal performance of poly(3‐hydroxybutyrate‐co‐4‐hydroxybutyrate)

Zhang

Wang

Sun

et al. 2021

Polymer Crystallization

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Poly(3‐hydroxybutyrate‐co‐4‐hydroxybutyrate) (P34HB) is a bio‐originated and biodegradable semi‐crystalline polyester. However, wide applications of the P34HB are hampered by its poor mechanical properties and processabilities. Divinylbenzene‐maleic anhydride (DM) copolymer is a rigid hollow microsphere. In this work, 0.5 ~ 2.0 wt% DM was used as a novel nucleation agent in P34HB to improve the crystallization of P34HB in order to enhance its properties. The resulting P34HB was characterized using differential scanning calorimetry for its thermal properties, XRD for its crystalline structures, and mechanical tests for its mechanical properties. We show that DM can effectively promote the crystallization process of the P34HB by acting as nucleation sites. Both mechanical properties and material processibility can be readily enhanced. The study has provided a simple approach to address the limitations that have prevented wide applications of an otherwise promising bio‐based degradable polymeric material. In addition, we expect similar approach can be employed for other degradable materials, such as polylactic acid, poly(butylene succinate), and poly(butyleneadipate‐co‐terephthalate).

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Section: Methodsmentioning

confidence: 99%

A novel hollow microsphere acting on crystallization, mechanical, and thermal performance of poly(3‐hydroxybutyrate‐co‐4‐hydroxybutyrate)

Zhang

Wang

Sun

et al. 2021

Polymer Crystallization

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“…As shown in Figure 22, the CB-g-DOPO reacted with maleic anhydride in PLA-MA. This reaction realizes the combination of the modifier and the matrix, hinders the diffusion of the flame retardant, and improves the dispersion of the flame retardant [107]. DOPO (9,10-dihydro-9-oxy-10-phosphazene-10-oxide) is an effective phosphoruscontaining flame retardant.…”

Section: Fullerene and Other Nanocarbonsmentioning

confidence: 99%

“…As shown in Figure 22, the CB-g-DOPO reacted with maleic anhydride in PLA-MA. This reaction realizes the combination of the modifier and the matrix, hinders the diffusion of the flame retardant, and improves the dispersion of the flame retardant [107]. Zhang et al [108] fabricated porous submicron nickel oxide (NiO) fibers via an electrospinning and subsequent pyrolysis process.…”

Section: Fullerene and Other Nanocarbonsmentioning

confidence: 99%

Nanocarbon-Based Flame Retardant Polymer Nanocomposites

et al. 2021

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In recent years, nanocarbon materials have attracted the interest of researchers due to their excellent properties. Nanocarbon-based flame retardant polymer composites have enhanced thermal stability and mechanical properties compared with traditional flame retardant composites. In this article, the unique structural features of nanocarbon-based materials and their use in flame retardant polymeric materials are initially introduced. Afterwards, the flame retardant mechanism of nanocarbon materials is described. The main discussions include material components such as graphene, carbon nanotubes, fullerene (in preparing resins), elastomers, plastics, foams, fabrics, and film–matrix materials. Furthermore, the flame retardant properties of carbon nanomaterials and their modified products are summarized. Carbon nanomaterials not only play the role of a flame retardant in composites, but also play an important role in many aspects such as mechanical reinforcement. Finally, the opportunities and challenges for future development of carbon nanomaterials in flame-retardant polymeric materials are briefly discussed.

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“…17 In order to control dripping, some inorganic particles such as montmorillonite, carbon black, multiwalled carbon nanotubes (MWCNTs), and even graphene oxide (GO) were grafted with DOPO. [18][19][20][21][22] Among all these inorganic particles, MWCNTs can not only support char structure and restrain melt dripping, 23 but also form conductive network to eliminate static charges. Yang found that 2 wt% addition of MWCNTs showed similar increase on electrical conductivity as 5 wt% addition of carbon black.…”

Section: Introductionmentioning

confidence: 99%

“…The flammability of PA6 can be partly answered by DOPO, but it is still far from achieving a high‐level fire resistance for the severe dripping was difficult to killed completely 17 . In order to control dripping, some inorganic particles such as montmorillonite, carbon black, multiwalled carbon nanotubes (MWCNTs), and even graphene oxide (GO) were grafted with DOPO 18–22 . Among all these inorganic particles, MWCNTs can not only support char structure and restrain melt dripping, 23 but also form conductive network to eliminate static charges.…”

Section: Introductionmentioning

confidence: 99%

Enhancing flame retardant and antistatic properties of polyamide 6 by a grafted multiwall carbon nanotubes

Xue

Guo

et al. 2020

J of Applied Polymer Sci

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In order to improve the flame retardancy and antistatic properties of polyamide 6 (PA6) at as low amount of additives as possible, an integrated-functional additive was synthesized by 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) and multiwalled carbon nanotubes (MWCNTs). The results showed 2 wt% of DOPO-MWCNTs distributed in PA6 formed an electric network and decreased volume resistivity sharply to 3.1 × 10 8 Ω cm. In other words, it helped PA6 to get to the percolation threshold of semiconductor. By using of 3 wt% DOPO-MWCNTs, the severe dripping in burning of PA6 was almost controlled. The possible reason was also ascribed to the network formed by evenly dispersed DOPO-MWCNTs, which strengthened the char structure and held severe dripping of PA6. As a result, the heat and smoke release were also suppressed obviously. The most important is that CO release was about half cut in CONE test.

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Constructing multifunctional nanofiller with reactive interface in PLA/CB-g-DOPO composites for simultaneously improving flame retardancy, electrical conductivity and mechanical properties

Cited by 114 publications

References 58 publications

A novel hollow microsphere acting on crystallization, mechanical, and thermal performance of poly(3‐hydroxybutyrate‐co‐4‐hydroxybutyrate)

A novel hollow microsphere acting on crystallization, mechanical, and thermal performance of poly(3‐hydroxybutyrate‐co‐4‐hydroxybutyrate)

Nanocarbon-Based Flame Retardant Polymer Nanocomposites

Enhancing flame retardant and antistatic properties of polyamide 6 by a grafted multiwall carbon nanotubes

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