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Unsaturated polyester resin containing hyperbranched hybrid porous material and preparation method thereof

A polyester resin and porous material technology, applied in the field of unsaturated polyester modified resin, can solve the problems of poor flame retardancy, easy volatility, phase separation, etc., and achieve improved hydrophilicity, good dispersion, and good mechanical properties Effect

Active Publication Date: 2021-04-06
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 thereof
  • Unsaturated polyester resin containing hyperbranched hybrid porous material and preparation method thereof
  • Unsaturated polyester resin containing hyperbranched hybrid porous material and preparation method thereof

Examples

Experimental program
Comparison scheme
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 an unsaturated polyester resin containing a hyperbranched hybrid porous material and a preparation method thereof. The unsaturated polyester resin of the hybridized porous material, the multifunctional modifier is a hyperbranched hybrid porous material containing metal ions, which is a porous microsphere, and the microsphere is formed by nucleation and growth of the hyperbranched hybrid Then it is made by making holes; its molecular structure formula is mainly composed of molecule A, molecule B and metal ion M n+ Composition, molecule A is a hyperbranched polymer molecule with a carboxyl group at the end, molecule B is a chain molecule with an amine group, the carboxyl group in molecule A, the amine group in molecule B and metal ion M n+ The following triangular bonding structure is formed through ionic bonds and coordination bonds: the preparation method of the present invention is simple in process, green and environmentally friendly, and low in cost; it is good.

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 Patents(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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