Reinforced properties of polybenzoxazine‐based nanocomposites with siloxane benzoxazine‐modified halloysite nanotubes

Li, Jing; Shen, Zhiqiang; Li, Huanxin; Xu, Li; Song, Hang; Guo, Gang; Liu, Guoji

doi:10.1002/app.47882

Cited by 10 publications

(17 citation statements)

References 25 publications

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“…Ma 1,2 , J-J. Qiu 1 , C-M. Liu 1* have been studied [30][31][32][33][34]. However, most benzoxazine resins appear as high melting point powders, and organic solvents [35] are always needed when preparing benzoxazine composites.…”

Section: Introductionmentioning

confidence: 99%

Low melting point, high thermal stable branched benzoxazines resin derived from mixed-substituted phosphazene core

Ma¹,

Qiu²,

Liu³

2020

Express Polym. Lett.

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Six fluorine-containing, mix-substituted phosphazene-based branched benzoxazine monomers with a low melting point were successfully prepared and their chemical structures were verified by 1 H, 13 C, 31 P and 19 F nuclear magnetic resonance (NMR). These branched benzoxazine resins underwent thermal ring-opening polymerization to form cured polymers with high thermal stability both in N 2 atmosphere and in air. The co-substituents, both m-CF 3 PhOH and p-CF 3 PhOH, imposed significant effects on processing, thermal, and surface properties of corresponding polybenzoxazines. Non-isothermal differential scanning calorimetry (DSC) under diverse heating rates was adopted to investigate the curing kinetics and determine the activation energy of polymerization. DSC results indicate that the m-CF 3 PhO-/p-CF 3 PhO-groups have the potential to lower ring-opening polymerization temperature. Glass transition temperatures (T g s) of polybenzoxazines derived from p-CF 3 PhOH are higher than that of polymers derived from m-CF 3 PhOH due to different steric hindrance and crosslinking density. More interesting, all polybenzoxazines show relatively high dielectric constant but exhibit low dielectric loss at ambient temperature.

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Section: Introductionmentioning

confidence: 99%

Low melting point, high thermal stable branched benzoxazines resin derived from mixed-substituted phosphazene core

Ma¹,

Qiu²,

Liu³

2020

Express Polym. Lett.

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“…Polybenzoxazines are phenolic‐based resins and widely used in aerospace and microelectronics areas 23–27 . Despite polybenzoxazine possessed many advantages, the thermal properties of traditional phenol‐aniline based polybenzoxazine (Poly(P‐a)) also need to be improved 28–31 . A series of studies revealed that the incorporation of BMI resins into benzoxazine resins can contribute to significant enhancement of mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Trifunctional quinoxaline‐based maleimide and its polymer alloys with benzoxazine: Synthesis, characterization, and properties

Wang

Dayo

Wang

et al. 2020

J of Applied Polymer Sci

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Novel quinoxaline-based trismaleimide (2,3-di[3-maleimido]phenyl-6-maleimidoquinoxaline, namely TQMI) and its polymer alloys with 3-phenyl-3,4dihydro-2H-1,3-benzoxazine (P-a) were successfully prepared and characterized. Differential scanning calorimetry investigation of TQMI exhibited distinct double exothermic peaks, which implied that the curing behavior of different type of maleimide group was discrepant. The curing temperature of P-a/TQMI prepolymers was lower than that of both neat TQMI and P-a monomer. The temperatures at 5% (T 5) and 10% (T 10) weight loss and the char yield (Y c) of cured TQMI at 800 C reached 513 C, 524 C, and 63.5%, respectively, which were much higher than the record of traditional 4,4 0bismaleimideodiphenylmethane (BMDPM) resin as well as most of other reported bismaleimide resins. Moreover, the addition of TQMI enhanced thermal stability, glass transition temperature (T g), and limiting oxygen index of benzoxazine resin dramatically. Attractively, the T g value of P-a/ TQMI copolymer at 30 wt% TQMI loadings was approximately 20 C higher than that of P-a/BMDPM copolymer owing to the bulky quinoxaline group.

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“…For fiber reinforced composites, mechanical properties were mainly determined by the kinds of fibers, thermosetting resins, and interfacial properties 5,6 . Incorporation of nanoparticles into matrices and modified on fiber surface can enhance the properties of composites 7–9 . Researches have shown that incorporation of nanoparticles into composites was a simple and effective way to improve the properties of composites.…”

Section: Introductionmentioning

confidence: 99%

“…5,6 Incorporation of nanoparticles into matrices and modified on fiber surface can enhance the properties of composites. [7][8][9] Researches have shown that incorporation of nanoparticles into composites was a simple and effective way to improve the properties of composites. For examples, An et al investigated the influence of nano-SiO 2 nanoparticles on the properties of epoxy resin to fabricate 3D integrated chip circuit.…”

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confidence: 99%

Investigation on curing reaction of phthalonitrile resin with nanosilica and the properties of their glass fiber‐reinforced composites

Ren

Chen

et al. 2020

J of Applied Polymer Sci

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In this work, Phthalonitrile containing benzoxazine (BA-ph) and Bisphenol A based cyanate ester (CE) were chosen as the matrix resin. Various amount of nano-SiO 2 was incorporated into BA-ph/CE and their glass fiber-reinforced composite laminates were fabricated. Curing reaction and processability of BA-ph/CE/SiO 2 blends were studied by differential scanning calorimetry and dynamic rheological analysis. Results showed that BA-ph and CE exhibited good processability and curing reaction of BA-ph/CE was not obviously affected by SiO 2. Scanning electron microscope images of the composites showed that SiO 2 particles were well dispersed in BA-ph/CE matrix. Moreover, SiO 2 could act as physical crosslinking points and diluent in matrix as well as between the glass fibers to improve the mechanical properties of composite laminates. As the results of dynamic mechanical analysis and thermogravimetry analysis, composite laminates possessed satisfactory T g and good thermal stability. With incorporation SiO 2 particles into matrix resin, dielectric constant and dielectric loss of BA-ph/CE/SiO 2 /GF composites were increased and showed frequency dependence. K E Y W O R D S copolymers, differential scanning calorimetry, glass transition, thermal properties 1 | INTRODUCTION High performance thermosetting resins, such as, epoxy, cyanate ester (CE), benzoxazine, phthalonitrile, bismaleimide, and so on, were widely investigated and applied in many fields. Due to the inherent brittleness of thermosetting resins, pure thermosetting resins were hardly used as structural, substrate, or functional materials. In order to improve the brittleness of thermosetting resins, continuous fiber, nanoparticles were widely applied to reinforce the thermosetting resins to fabricate composites with enhanced properties. 1-4 Compared with that of traditional inorganic metal materials, fiber

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Reinforced properties of polybenzoxazine‐based nanocomposites with siloxane benzoxazine‐modified halloysite nanotubes

Cited by 10 publications

References 25 publications

Low melting point, high thermal stable branched benzoxazines resin derived from mixed-substituted phosphazene core

Low melting point, high thermal stable branched benzoxazines resin derived from mixed-substituted phosphazene core

Trifunctional quinoxaline‐based maleimide and its polymer alloys with benzoxazine: Synthesis, characterization, and properties

Investigation on curing reaction of phthalonitrile resin with nanosilica and the properties of their glass fiber‐reinforced composites

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