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A kind of bio-based flame-retardant furan epoxy resin and preparation method thereof

A furan epoxy resin and flame retardant technology, which is applied in the field of bio-based flame retardant furan epoxy resin and its preparation, can solve the problems of relatively few researches on flame retardant properties, easy generation of toxic gases and the like, and achieves substitutability. Strong, high-efficiency utilization, and high biosafety effects

Active Publication Date: 2020-06-12
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resulting phosphorus-bromine composite flame-retardant epoxy resin has a good flame-retardant effect, but the disadvantage is that it is easy to produce toxic gases at high temperatures
[0005] Since 2014, the preparation of bio-based furan epoxy resins has also developed rapidly, but there are relatively few studies on its flame retardant properties as a whole.

Method used

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  • A kind of bio-based flame-retardant furan epoxy resin and preparation method thereof
  • A kind of bio-based flame-retardant furan epoxy resin and preparation method thereof
  • A kind of bio-based flame-retardant furan epoxy resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Weigh furan epoxy resin BOF (2.4g, 10mmol) in the reaction bottle, pass into nitrogen, after removing the oxygen component, under nitrogen atmosphere, add 4,4'-diaminodiphenyl sulfone (44DDS, 1.2g, 5mmol ) to further remove the air, fully mix and stir, and heat up to 140°C to melt and mix them evenly. The material was uniformly poured into a stainless steel mold plate, and the mold plate was moved into a nitrogen curing box at 185° C., cured for 3 hours, and then cooled naturally under a nitrogen atmosphere to obtain a yellow transparent epoxy resin polymer (crosslinking density: 2.38mol / dm 3 ). Micro Combustion Calorimetry (MCC) experimental results show a maximum heat release rate of 175W / g ( Figure 8 ). The characteristic infrared absorption peak of the prepared bio-based flame-retardant furan epoxy resin: 681cm -1 (δ, C-H, Ar), 786cm -1 (δ, C-H, Ar), 1095cm -1 (vs, C-O-C, ether), 1200cm -1 (vs, C-O-C, furan), 1282cm -1 (v as , C-O-C, ether), 1354cm -1 (v...

Embodiment 2

[0056] Weigh furan epoxy resin OmbFdE (3.5g, 10mmol) in the reaction flask, pass into nitrogen, after removing the oxygen component, under nitrogen atmosphere, add 4,4'-diaminodiphenyl sulfone (44DDS, 1.2g, 5mmol ) to further remove the air, fully mix and stir, and heat up to 130°C to melt the two and mix evenly. The material was uniformly poured into a stainless steel mold plate, and the mold plate was moved into a nitrogen curing box at 175° C., cured for 4 hours, and then cooled naturally under a nitrogen atmosphere to obtain a yellow opaque epoxy resin polymer (crosslinking density: 2.16mol / dm 3 ). Micro-combustion calorimetry (MCC) experiment results show that the maximum heat release rate is 223W / g.

Embodiment 3

[0058] Weigh furan epoxy resin BOF (2.4g, 10mmol) in the reaction bottle, pass into nitrogen, after removing the oxygen component, under nitrogen atmosphere, add 3,3'-diaminodiphenyl sulfone (33DDS, 1.2g, 5mmol ) to further remove the air, fully mix and stir, and heat up to 130°C to melt the two and mix evenly. The material was uniformly poured into a stainless steel mold plate, and the mold plate was moved into a nitrogen curing box at 170° C., solidified for 3 hours, and then cooled naturally under a nitrogen atmosphere to obtain a yellow transparent epoxy resin polymer (crosslinking density: 3.62 mol / dm 3 ). Micro Combustion Calorimetry (MCC) experiment results show that the maximum heat release rate is 112W / g ( Figure 8 ). The characteristic infrared absorption peak of the prepared bio-based flame-retardant furan epoxy resin: 690cm -1 (δ, C-H, Ar), 786cm -1 (δ, C-H, Ar), 1070cm -1 (vs, C-O-C, ether), 1208cm -1 (vs, C-O-C, furan), 1290cm -1 (vas, C-O-C, ether), 13...

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Abstract

The invention discloses flame-retardant furan epoxy resin and a preparation method thereof, and belongs to the technical field of polymer compounds. The flame-retardant furan epoxy resin is prepared from furan epoxy resin monomers which are prepared through derivation of hydroxymethylfurfural. The preparation method comprises the specific steps: performing melting and uniform mixing on the furan epoxy resin monomers of different structures and curing agents of different types, and then performing injection molding, heating and solidification so as to obtain the flame-retardant furan epoxy resin with superior performance. A bulk solidification method is adopted directly, the operation flow is simple, the curing time is short, and the obtained bio-based epoxy resin polymer material has excellent performance.

Description

technical field [0001] The invention belongs to the technical field of polymer compounds, and in particular relates to a bio-based flame-retardant furan epoxy resin and a preparation method thereof. Background technique [0002] Epoxy resin polymers are usually cross-linked and polymerized by epoxy resin monomer materials and curing agents, and are widely used in coatings, adhesives, and electronic and electrical industries, multi-component composite materials, and engineering technology research fields. On the whole, due to the high brittleness and flammability of epoxy resin polymers, its application in special industries is largely limited. Traditional flame retardant materials mainly solve the above flame retardant problems by adding specific auxiliary flame retardants. Commonly used flame retardants mainly include halogen-based flame retardants and phosphorus-containing flame retardants. Halogen-based flame retardant materials have reduced UV stability, and are prone t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/26C08G59/50
CPCC08G59/26C08G59/504
Inventor 郭凯孟晶晶曾禹舜方正欧阳平凯
Owner NANJING TECH UNIV
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