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Bisphenol acid-based epoxy resin emulsifier, and water-based emulsion and preparation method thereof

A bisphenolic acid-based epoxy resin and water-based emulsion technology, which is applied in the field of special emulsifiers and epoxy resins, can solve problems such as difficult to meet the requirements of green environmental protection, ecological environment hazards, etc., and achieve the effect that is conducive to sustainable development

Active Publication Date: 2020-07-28
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the traditional solvent-based epoxy resin, because it contains a large amount of organic solvents, brings harm to the ecological environment; it is becoming more and more difficult to meet the market's requirements for green environmental protection

Method used

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  • Bisphenol acid-based epoxy resin emulsifier, and water-based emulsion and preparation method thereof
  • Bisphenol acid-based epoxy resin emulsifier, and water-based emulsion and preparation method thereof
  • Bisphenol acid-based epoxy resin emulsifier, and water-based emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Preparation of emulsifier DPAE-nDOPO-(3-n) (MEA-PEGGE-MEA-PEGGE) (n=1):

[0033] (1) Preparation of DPAE and DPAE-1DOPO adducts: first add bisphenolic acid (45.8g, 0.16mol) and epichlorohydrin (263.7g, 2.88) into a 1000ml three-necked flask with a stirring device and reflux condenser. mol), stir and heat for 30 minutes, add 3.61g of tetrabutylammonium bromide (TBAB) as a catalyst, gradually increase the temperature to 110°C, react for 8 hours, recover the excess epichlorohydrin by distillation under reduced pressure, and then add 150 Grams of ethyl acetate solvent, adjust the temperature to 25°C and add NaOH (19.2g, 0.48mol) solution (40% by mass NaOH aqueous solution) to close the loop for 2 hours, then transfer the reaction solution to a separatory funnel and add water to wash 3 Sub-to-neutral, stand still, separate the water layer, and distill the oil layer product under reduced pressure to obtain a light yellow semi-solid epoxy resin (DPAE, its epoxy value is 0.56). T...

Embodiment 2

[0050] Preparation of emulsifier DPAE-nDOPO-(3-n) (MEA-PEGGE-MEA-PEGGE) (n=2):

[0051] (1) Preparation of DPAE and DPAE-2DOPO adducts: first add bisphenolic acid (45.8g, 0.16mol) and epichlorohydrin (263.7g, 2.88) into a 1000ml three-necked flask with a stirring device and reflux condenser. mol), stir and heat for 30 minutes, add 3.61g of tetrabutylammonium bromide (TBAB) as a catalyst, gradually increase the temperature to 110°C, after reacting for 8 hours, recover the excess epichlorohydrin by distillation under reduced pressure, and then add 150 Grams of ethyl acetate solvent, adjust the temperature to 25°C and add NaOH (19.2g, 0.48mol) solution (40% by mass NaOH aqueous solution) to close the loop for 2 hours, then transfer the reaction solution to a separatory funnel and add water to wash 4 Sub-to-neutral, stand still, separate the water layer, distill the oil layer product under reduced pressure to obtain a light yellow semi-solid epoxy resin (DPAE, the epoxy value measure...

Embodiment 3

[0063] Preparation of emulsifier DPAE-nDOPO-(3-n) (MEA-PEGGE-MEA-PEGGE) (n=1.5):

[0064] (1) Preparation of DPAE and DPAE-1.5DOPO adducts: first add bisphenolic acid (45.8g, 0.16mol) and epichlorohydrin (263.7g, 2.88mol), stir and heat for 30 minutes, add 3.65g of tetrabutylammonium bromide (TBAB) as a catalyst, gradually increase the temperature to 110°C, react for 8 hours, recover the excess epichlorohydrin by distillation under reduced pressure, and then add 150 grams of ethyl acetate solvent, adjust the temperature to 25°C and add NaOH (19.2g, 0.48mol) solution (40% by mass NaOH aqueous solution) to close the loop for 2 hours, then transfer the reaction solution to a separatory funnel and add water to wash 3 times to neutral, let stand, separate the water layer, distill the oil layer product under reduced pressure to obtain a light yellow semi-solid epoxy resin (DPAE, its epoxy value is 0.56). Take 10.71g of bisphenolic acid-based epoxy resin (DPAE), 6.48g of DOPO, 1.20g of...

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PUM

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Abstract

The invention discloses a bisphenol acid-based epoxy resin emulsifier. The emulsifier structurally comprises a hydrophobic bisphenol acid-based epoxy resin molecular chain segment, a hydrophilic flexible polyether alcohol amine multi-block chain segment and a phosphorus-containing DOPO molecular chain segment. Therefore, the bisphenol acid-based epoxy resin emulsifier can better emulsify bisphenolacid-based epoxy resin under an aqueous condition. The invention also discloses a water-based emulsion obtained by emulsifying the bisphenol acid-based epoxy resin with the emulsifier and a preparation method of the water-based emulsion. The prepared water-based emulsion is stable and has a small particle size and a flame-retardant function.

Description

Technical field [0001] The invention relates to the field of special emulsifiers and epoxy resins, in particular to a bisphenol acid-based epoxy resin emulsifier and its aqueous emulsion and a preparation method thereof. Background technique [0002] Epoxy resin material has the advantages of excellent adhesion, electrical insulation, low shrinkage, high strength and high modulus, making it play an important role in the fields of electronics, shipbuilding, aerospace, and machinery manufacturing. For traditional petroleum-based derivative epoxy resins such as bisphenol A epoxy resin, the raw material required for the preparation of bisphenol A is petroleum derivatives, which requires a large amount of non-renewable petroleum resources; and bisphenol A is considered A chemical that is potentially harmful to human health. Due to the increasing shortage of petroleum resources and the increasing awareness of sustainable development, the use of green bio-based raw materials and deriva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/03C08L63/00C08G65/333C08G65/335
CPCC08J3/03C08G65/3355C08G65/33396C08J2363/00C08G2650/04
Inventor 周继亮张俊珩张道洪李廷成
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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