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Unsaturated polyester resin containing hyperbranched hybrid porous material and preparation method of unsaturated polyester resin

A technology of polyester resin and porous material, applied in the field of unsaturated polyester modified resin, can solve the problems of easy volatility, large addition amount, poor flame retardant performance, etc., and achieve good mechanical properties, good dispersibility, and improved hydrophilic performance. Effect

Active Publication Date: 2019-06-21
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the unsaturated polyester resin material prepared by the existing functional modification (inorganic modification) method is prone to phase separation. phase separation
Unsaturated polyester resin itself has poor flame retardant performance, and it is often necessary to enhance its flame retardant performance. At present, it is mostly achieved by adding inorganic flame retardant fillers. This method is simple to operate, halogen-free and low in cost, but its addition amount is relatively high. Large, it is easy to increase the specific gravity and viscosity of the composition, affect the dispersion uniformity of the flame retardant filler in the material, and ultimately affect the mechanical properties of the product
Most of the organic flame retardant fillers in the prior art are small molecular or oligomers, which are not only poor in thermal stability, but also volatile, high in addition, and poor in compatibility with the matrix, which greatly affects the modification system. The Flame Retardancy and Processability of Obtained Unsaturated Polyester Resin

Method used

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  • Unsaturated polyester resin containing hyperbranched hybrid porous material and preparation method of unsaturated polyester resin
  • Unsaturated polyester resin containing hyperbranched hybrid porous material and preparation method of unsaturated polyester resin
  • Unsaturated polyester resin containing hyperbranched hybrid porous material and preparation method of unsaturated polyester resin

Examples

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Effect test

Embodiment 1

[0069] The preparation method of the unsaturated polyester resin containing hyperbranched type hybrid porous material, concrete steps are as follows:

[0070] (1) Prepare a multifunctional modifier, that is, a hyperbranched hybrid porous material containing metal ions;

[0071] (a) preparing a substance containing molecule A;

[0072] Pyrazine-2,3-dicarboxylic acid and 1,1,1-tri(hydroxymethyl)propane with a molar ratio of 1:1 were subjected to an esterification reaction at a temperature of 150°C under nitrogen protection for 1 h, and then at temperature Under the conditions of 200°C and 0 MPa, vacuumize the polycondensation reaction for 4 hours to obtain the substance containing molecule A, wherein stirring is required during the esterification reaction and polycondensation reaction, and the stirring rate is 200rpm;

[0073] (b) Mix the substance containing molecule A obtained in step (a) in the form of powder with an aqueous solution of n-propylamine (containing substance B ...

Embodiment 2

[0081] The preparation method of the unsaturated polyester resin containing hyperbranched type hybrid porous material, concrete steps are as follows:

[0082] (1) Prepare a multifunctional modifier, that is, a hyperbranched hybrid porous material containing metal ions;

[0083] (a) preparing a substance containing molecule A;

[0084] 2-carboxyethylphenylphosphinic acid and tris(2-hydroxyethyl)isocyanurate with a molar ratio of 1:2 were subjected to esterification reaction at a temperature of 180°C under nitrogen protection for 2h, and then at temperature The temperature is 180°C, and the pressure is -0.1MPa, and the polycondensation reaction is carried out for 3 hours to obtain the substance containing molecule A. Stirring is required during the esterification reaction and polycondensation reaction, and the stirring rate is 300rpm;

[0085] (b) The substance containing molecule A prepared in step (a) is mixed with an aqueous solution of n-butylamine (substance containing mol...

Embodiment 3

[0093] The preparation method of the unsaturated polyester resin containing hyperbranched type hybrid porous material, concrete steps are as follows:

[0094] (1) Prepare a multifunctional modifier, that is, a hyperbranched hybrid porous material containing metal ions;

[0095] (a) preparing a substance containing molecule A;

[0096] 5-tert-butyl-1,3-benzenedicarboxylic acid and 2,4,5-trihydroxybutyrophenone at a molar ratio of 1:3 were subjected to an esterification reaction at a temperature of 160°C under nitrogen protection for 1.5 hours, Then vacuumize the polycondensation reaction at a temperature of 190°C and a pressure of -0.05MPa for 2 hours to obtain a substance containing molecule A, wherein stirring is required during the esterification reaction and polycondensation reaction, and the stirring rate is 400rpm;

[0097] (b) Mix the substance containing molecule A prepared in step (a) in the form of powder with an aqueous solution of polyetheramine D230 (containing su...

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Abstract

The invention relates to unsaturated polyester resin containing a hyperbranched hybrid porous material and a preparation method of the unsaturated polyester resin. The preparation method comprises thefollowing steps: mixing a multifunctional modifier, unsaturated polyester resin and a curing agent, and curing the mixture to prepare the unsaturated polyester resin containing the hyperbranched hybrid porous material, wherein the multifunctional modifier is the hyperbranched hybrid porous material containing metal ions, is porous microspheres and is prepared as follows: a hyperbranched hybrid forms microspheres after nucleation and growth and pore forming is performed; the molecular structural formula is mainly composed of a molecule A, a molecule B and a metal ion Mn<+>, the molecule A is ahyperbranched polymer containing carboxyl in the end group, the molecule B is a chain-type molecule containing amino, and the carboxyl in the molecule A, the amino in the molecule B and the metal ionMn<+> are bonded by bonding ion bonds and coordinate bonds to form a triangular bonded structure. The preparation method is simple in process, green, environmentally friendly and low in cost. The product well considers flame-retardant, antibacterial and mechanical performance and has bright market prospects.

Description

technical field [0001] The invention belongs to the field of unsaturated polyester modified resins, and relates to unsaturated polyester resins containing hyperbranched hybrid porous materials and a preparation method thereof, in particular to an unsaturated polyester resin modified by adding a flame retardant and antibacterial agent Methods. Background technique [0002] Unsaturated polyester resin (UPR) is prepared by polycondensation reaction of dibasic acid and dibasic alcohol, which is one of the main varieties of thermosetting resin. Due to its excellent electrical properties, mechanical properties, thermal processing properties and high production efficiency, unsaturated polyester composite materials are widely used in rail transit, building materials, automotive materials, hull materials and electrical equipment and other fields. With the continuous development of society, people put forward higher requirements on the functionality of unsaturated polyester resin mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/06C08L87/00C08J9/00C08G83/00
Inventor 孙宾曾婷朱美芳江晓泽相恒学陈珈胡余宗
Owner DONGHUA UNIV
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