Curing kinetics and thermal stability of novel siloxane-containing benzoxazines

Xu, Jilei; Li, Hui; Zeng, Kai; Li, Gaoxu; Zhao, Xuhong; Zhao, Chunxia

doi:10.1016/j.tca.2018.11.016

Cited by 36 publications

(23 citation statements)

References 36 publications

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“…Benzoxazine monomer is prepared through dehydration to a ring by a Mannich condensation reaction based on a phenol source, an amine source and a formaldehyde solution or paraformaldehyde. Benzoxazine resin is a kind of phenolic resin; furthermore it has better heat resistance, dielectric properties, low surface energy, low water absorption and no release of small molecules during processing compared with traditional phenolic resin, in addition to zero shrinkage and structure design flexibility …”

Section: Introductionmentioning

confidence: 99%

Synthesis and properties of a novel bio‐based benzoxazine resin with excellent low‐temperature curing ability

Zhan

Yan

Yin

et al. 2019

Polymer International

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A novel bio‐based benzoxazine resin (diphenolic acid/furfurylamine benzoxazine resin, PDPA‐F‐Boz) was prepared by using bio‐based diphenolic acid, furfurylamine and paraformaldehyde as raw materials. The structure of DPA‐F‐Boz monomer was characterized by Fourier transform infrared spectroscopy, 1H NMR and 13C NMR, and then its curing reaction and the thermal stability of the cured PDPA‐F‐Boz were analyzed. Compared with the traditional fossil‐based benzoxazine (bisphenol A/aniline benzoxazine, BPA‐A‐Boz) and the bio‐based benzoxazine (diphenolic acid/aniline benzoxazine, DPA‐A‐Boz), DPA‐F‐Boz monomer showed the lowest curing temperature, and PDPA‐F‐Boz had the highest residual char ratio at 800 °C and the lowest degradation rate at the peak temperature. Meanwhile, the total heat release, peak heat release rate and heat release capacity of PDPA‐F‐Boz were much lower than those of PBPA‐A‐Boz and PDPA‐A‐Boz. Thus, PDPA‐F‐Boz showed excellent low‐temperature curing ability and thermal stability. © 2019 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Synthesis and properties of a novel bio‐based benzoxazine resin with excellent low‐temperature curing ability

Zhan

Yan

Yin

et al. 2019

Polymer International

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“…Previous studies of curing kinetic of benzoxazine resins stipulated that it follows an autocatalytic process . The integral forms of the reaction models obtained in the present study are plotted in Figure .…”

Section: Resultsmentioning

confidence: 99%

“…Several analytical tools have been utilized to investigate the curing kinetic of thermosetting polymers, such as Fourier transform infrared spectroscopy (FTIR), DSC, and rheology measurements. Among these techniques, DSC is revealed to be the most popular method to investigate the curing behavior of several thermosetting polymers, encompassing epoxy, phenolic and benzoxazine resins . The crosslinking reactions liberate an important amount of heat, which makes DSC an interesting method for monitoring this type of process …”

Section: Introductionmentioning

confidence: 99%

Non‐Isothermal Curing Kinetics of Alkali‐Treated Alfa Fibers/Polybenzoxazine Composites Using Differential Scanning Calorimetry

2020

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The exploration of curing process of benzoxazine resins, which possess outstanding features, is crucial for practical and advanced applications. In this study, bisphenol A-aniline based benzoxazine (BA-a) composites reinforced with alkali treated alfa fibers (TAF) were prepared. The influence of different loadings of the TAF on the curing kinetics of BA-a was investigated using non-isothermal differential scanning calorimetry (DSC) at different heating rates. Isoconversional integral methods or model free kinetics, namely, the iterative Kissinger-Akahira-Sunose (it-KAS), iterative Flynn-Wall-Ozawa (it-FWO), Sbirrazzuoli methodology (VYA/CE) and Trache-Abdelaziz-Siwa-ni (TAS) methods have been applied to the experimental data in order to evaluate the curing kinetic parameters. The study revealed that the presence of TAF improved the crosslinking reaction of benzoxazine and reduced the activation energy. The pre-exponential factor exhibited the same trend as the activation energy. The reaction model, examined for all composites, showed that all systems were accurately presented by an autocatalytic reaction model. The Avrami-Erofeev model was the most appropriate for describing the cure kinetics and revealed a good agreement with experimental data.

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“…Upon increasing the heating rate, the exothermic peak shifts to a higher temperature. In general, the activation energy of a curing reaction was calculated using two well‐known methods, the Kissinger and Ozawa methods, respectively …”

Section: Resultsmentioning

confidence: 99%

Star‐shaped silicon‐containing arylacetylene resin based on a one‐pot synthesis using zinc powder catalysis with improved processing and thermal properties

Huang

Deng

Liu

2019

J of Applied Polymer Sci

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Herein, reporting a simple, sustainable, and cost-effective chemical synthesis of a star-shaped silicon-containing arylacetylene (SSA) resin via a one-pot process using zinc powder as a catalyst. The as-prepared viscous liquid resins exhibited moderate rheological behavior. The thermal curing temperature was determined to be 203 C using differential scanning calorimetry, which is much lower than that reported for polyimide and phthalonitrile (>300 C), indicating the SSA resins are suitable for processing at a lower temperature. Thermogravimetric analysis also revealed the excellent thermal stability and extremely high carbon residue of the cured SSA resin (the temperature at 5% mass loss and residual yield at 800 C under N 2 were 654 C and 93%, respectively). The results showed the excellent processability and thermal stability of SSA resin.

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Curing kinetics and thermal stability of novel siloxane-containing benzoxazines

Cited by 36 publications

References 36 publications

Synthesis and properties of a novel bio‐based benzoxazine resin with excellent low‐temperature curing ability

Synthesis and properties of a novel bio‐based benzoxazine resin with excellent low‐temperature curing ability

Non‐Isothermal Curing Kinetics of Alkali‐Treated Alfa Fibers/Polybenzoxazine Composites Using Differential Scanning Calorimetry

Star‐shaped silicon‐containing arylacetylene resin based on a one‐pot synthesis using zinc powder catalysis with improved processing and thermal properties

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