Design of low temperature self-cured phthalonitrile-based polymers for advanced glass fiber composite laminates

Xu, Min; Liu, Mengdie; Dong, Shihua; Liu, Xiaobo

doi:10.1007/s10853-013-7623-z

Cited by 53 publications

(39 citation statements)

References 29 publications

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“…As the development of science and technology in recent decades, the demands of high‐performance of polymer composites increased rapidly. In the areas such as aerospace industry, aeronautics, and cars industry, fiber‐reinforced polymer composites were used as the structural materials to replace the traditional metal materials to significantly reduce the weight and thus to reduce the emissions and improve carrying capacity, due to their properties of light weight and high modulus, high heat deflection temperature, and outstanding thermal stability . In the electric industry, the fiber‐reinforced polymer composites were also widely used as substrate materials because of the low dielectric constant, low moisture adsorption, good dimensional stability, and low costs .…”

Section: Introductionmentioning

confidence: 99%

Design of the phthalonitrile‐based composite laminates by improving the interfacial compatibility and their enhanced properties

Ren

Lei

Pan

et al. 2017

J of Applied Polymer Sci

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Phthalonitrile containing benzoxazine (BA‐ph) and cyanate ester (CE) were chosen as the thermosetting matrix and the glass fiber (GF) reinforced laminates formed at low temperature were designed. The polyarylene ether nitriles containing pendent carboxyl groups (CPEN) was selected to modify the interfacial interaction between the resin matrix and GFs. Two methods of introducing CPEN were compared and the effects of CPEN on curing behaviors and properties of the composites were investigated. Results showed that with the CPEN, exothermic peaks shifted to lower temperature and curing temperatures of BA‐ph/CE decreased slightly. The mechanical and thermal properties of GF‐reinforced composites were discussed and the results indicated that the composites of modified GFs with CPEN exhibited outstanding mechanical properties, higher glass transition temperature (Tg > 290 °C) than that of composites composed of CPEN mixed with BA‐ph/CE. Moreover, GF‐reinforced composites showed stable dielectric constants (3.8–4.5) and low dielectric loss (0.005–0.01), which were independent of the frequency. In sum, the various methods of the introduction of CPEN in the GF‐reinforced composites may provide a new route to prepare improved composites, meanwhile, composites with outstanding processability and excellent mechanical and thermal properties are expected to be widely applied in the fields of high‐performance structural materials. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45881.

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Section: Introductionmentioning

confidence: 99%

Design of the phthalonitrile‐based composite laminates by improving the interfacial compatibility and their enhanced properties

Ren

Lei

Pan

et al. 2017

J of Applied Polymer Sci

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“…Easily processable, high‐temperature resins, which can be converted to stable prepolymers, stored under ambient conditions, and cured without the evolution of volatile reaction products, have long been sought as matrix materials for advanced composite fabrication. The key to the development of high‐temperature polymers that do not produce volatile components upon extended heat treatment is the incorporation of thermally stable aromatic structural units within the backbone of the polymer . In addition to the resin backbone structure, it has been shown that an increase in the crosslinking density of thermosetting polymers has a direct enhancement in the thermal stability and mechanical properties …”

Section: Introductionmentioning

confidence: 99%

Phthalonitrile Blends: Simple Way to Improve Physical Properties by Increasing Crosslinking Density

Laskoski

Clarke

Neal

et al. 2017

Macro Chemistry & Physics

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A method to improve the mechanical properties of phthalonitrile (PN) resins at lower postcure temperatures is achieved by blending a second‐generation oligomeric aromatic ether ketone‐based PN resin with 1,1,1‐tris‐[4‐(3,4‐dicyanophenoxy)phenyl]ethane in varying concentrations. Most of the mixtures exhibit a single softening temperature indicating that the two resins are miscibile in one another at the respective concentrations. After various blends are thermally cured to several postcure temperatures yielding crosslinked polymers, the polymers demonstrate superb mechanical properties and thermooxidative stability at lower overall postcure temperatures.

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“…In order to address this problem, considerable research efforts have been expended on the development for the curing agent. To date, lots of Lewis acids/bases curing agent, such as metallic salts, strong organic acids, strong organic acids/amine salts and active hydrogen-containing heterocyclic structures have been developed and used [8][9][10][11][12][13][14][15][16][17]. In addition to the traditional Lewis acids/bases, our laboratory also reported the cooperative curing effect between phthalonitrile and methyl tetrahydrophthalic anhydride end-capped imide compound (MODA) [18,19].…”

Section: Introductionmentioning

confidence: 99%

The curing behavior and properties of phthalonitrile resins using ionic liquids as a new class of curing agents

Cheng¹,

Lv²,

Z.³

et al. 2017

Express Polym. Lett.

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Abstract. Binary blends composed of 1,3-bis (3,4-dicyanophenoxy) benzene (3BOCN) and ionic liquids (ILs) with different molecular structures were prepared. The curing behavior of these 3BOCN/ILs blends were studied by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and rheological analysis. The study suggested that the blends possessed a wide processing window and the structures of ILs (anion, cation and alkyl chain length at cation) had an effect on curing behavior. The 3BOCN/[EPy]BF 4 resins were prepared at elevated temperature. IR spectra of the resins showed that there were triazine and isoindoline formed in curing process. The TGA and dynamic mechanical analysis (DMA) revealed that the resins have excellent thermal stability together with high storage modulus and high glass transition temperature (T g ). Dielectric properties, long term oxidative aging and water uptake measurements of the resins suggested the IL brought some unique properties to the resins.

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Design of low temperature self-cured phthalonitrile-based polymers for advanced glass fiber composite laminates

Cited by 53 publications

References 29 publications

Design of the phthalonitrile‐based composite laminates by improving the interfacial compatibility and their enhanced properties

Design of the phthalonitrile‐based composite laminates by improving the interfacial compatibility and their enhanced properties

Phthalonitrile Blends: Simple Way to Improve Physical Properties by Increasing Crosslinking Density

The curing behavior and properties of phthalonitrile resins using ionic liquids as a new class of curing agents

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