Preparation of a nano-silica modified melamine formaldehyde resin

Li, Chunfeng; Qin, Zexiu; Yu, Long; Pan, Yadong; Liu, Mingli

doi:10.1016/j.ijadhadh.2021.103076

Cited by 11 publications

(6 citation statements)

References 12 publications

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“…In addition, AMP, as the raw material of MAMP, is mainly derived from waxy corn starch, which is the main medium for energy storage in waxy corn. It is nontoxic and one of the polysaccharides that can be recycled and is biodegradable . As maize is a fast-growing crop, the feedstock of MAMP has a low carbon footprint.…”

Section: Resultsmentioning

confidence: 99%

“…It is nontoxic and one of the polysaccharides that can be recycled and is biodegradable. 35 As maize is a fast-growing crop, the feedstock of MAMP has a low carbon footprint. The content of AMP in waxy corn starch is more than 95%.…”

Section: Effects Of Microencapsulation On the Compatibility Between A...mentioning

confidence: 99%

“…These findings are in accordance with other studies. 19,23,35 According to the FTIR analysis, the spherical particles attached to the MAMP surface are formed by the selfaggregation of the MF resin. By comparing the surface morphologies of MAMP and AMP, it is proven that the MF resin is evenly coated on the AMP surface to form a dense shell structure.…”

Section: ■ Introductionmentioning

confidence: 99%

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Development of a Sustainable Biobased Flame-Retardant Microcapsule and Its Flame-Retarding Mechanism on Asphalt Combustion

Dong,

Xia,

2024

Langmuir

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To develop an efficient, sustainable, and eco-friendly biobased flame-retardant microcapsule suitable for the working environments of tunnel asphalt pavement and reveal its flame-retarding mechanism on asphalt combustion, microencapsulated amylopectin (MAMP) was first prepared using an in situ polymerization method. Changes in the basic properties of amylopectin (AMP) and its compatibility with asphalt after microencapsulation were studied. Then, the flame retarding efficiency and improvement effects of MAMP on the flame retardancy of asphalt were investigated. Results show that melamine formaldehyde (MF) resin is evenly coated on the AMP surface without changing the chemical composition of AMP, increasing the thermal stability of AMP and the compatibility between AMP and asphalt. MAMP reacts with ammonium polyphosphate (APP) to release a number of incombustible gases to delay asphalt combustion at early stages and subsequently dehydrates to form a stable starch-based charring layer to suppress heat and mass transfer during asphalt combustion, improving the fire safety of asphalt materials. The added 3% MAMP can reduce the total enthalpy value of all exothermic peaks of the 10% APP-modified asphalt by 43.6%. As a carbonization agent, MAMP produces a charring layer with higher heat capacity during asphalt combustion, exerting an excellent inhibition effect on heat release. This study provides a reference for the application of biobased materials in flame-retarded asphalt pavements.

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Section: Resultsmentioning

confidence: 99%

Section: Effects Of Microencapsulation On the Compatibility Between A...mentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

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Development of a Sustainable Biobased Flame-Retardant Microcapsule and Its Flame-Retarding Mechanism on Asphalt Combustion

Dong,

Xia,

2024

Langmuir

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“…Melamine, as an organic compound with triazine ring in the center and three amine groups in the peripheral, has been widely applied in laminates, adhesives, 23 flame retardants, toughening agents 24 and resins 25 . The best‐known application of melamine is melamine‐formaldehyde (MF) resins, which shows good fire resistance, heat resistance and mechanical properties 26–29 . It is quite intriguing to synthesize benzoxazine from melamine since it is anticipated to show higher crosslinking density, better thermal property and flame retardance.…”

Section: Introductionmentioning

confidence: 99%

“…25 The best-known application of melamine is melamineformaldehyde (MF) resins, which shows good fire resistance, heat resistance and mechanical properties. [26][27][28][29] It is quite intriguing to synthesize benzoxazine from melamine since it is anticipated to show higher crosslinking density, better thermal property and flame retardance. However, as a triamine, melamine is very difficult to be used as amine source because the product may precipitate during synthesis.…”

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confidence: 99%

Improved curing reactivity, thermal resistance and mechanical properties of furylamine‐based benzoxazine using melamine as an amine source

Fan

Zhang

et al. 2022

Polymers for Advanced Techs

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Benzoxazine resin is known as a high‐performance thermosetting resin, but the relatively high curing temperature and low cross‐linking density limit its broad application. The furylamine based benzoxazines possess great comprehensive performances and show great potential as bio‐based materials. In this work, the benzoxazine precursors (BAfa‐ma) containing furylamine were synthesized by using melamine as diamine to promote the curing reactivity and thermal resistance of furylamine based benzoxazines. The Fourier transform infrared (FT‐TR) and proton nuclear magnetic resonance (1H NMR) spectroscopy were used to confirm the chemical structures of BAfa‐ma, and differential scanning calorimetric (DSC), and thermogravimetric analysis (TGA) were applied to verify the curing behavior and performance of obtained polymers. It is showed that there are less benzoxazine rings in BAfa‐ma as more melamine introduced, on the contrary, more phenolic hydroxyls and secondary amines appeared as built‐in catalysts. What's more, BAfa‐ma have higher reactivity, shorter gelation time and lower curing temperature. Additionally, more melamine would lead to higher crosslinking density and higher thermal resistance, poly(BAfa‐70ma) shows Tg up to 318.6 and 76.4°C higher than that of poly(BAfa). Moreover, the mechanical and dielectric properties of the corresponding glass fiber reinforced composites laminates are also investigated, and it is found that proper amount of melamine may be beneficial for higher mechanical strength.

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Preparation and application of carboxylated carbon nanotube-modified melamine resin phase change materials with high photothermal conversion efficiency

Zhang,

Ji,

Yuan

et al. 2024

J Mater Sci

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Preparation of a nano-silica modified melamine formaldehyde resin

Cited by 11 publications

References 12 publications

Development of a Sustainable Biobased Flame-Retardant Microcapsule and Its Flame-Retarding Mechanism on Asphalt Combustion

Development of a Sustainable Biobased Flame-Retardant Microcapsule and Its Flame-Retarding Mechanism on Asphalt Combustion

Improved curing reactivity, thermal resistance and mechanical properties of furylamine‐based benzoxazine using melamine as an amine source

Preparation and application of carboxylated carbon nanotube-modified melamine resin phase change materials with high photothermal conversion efficiency

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