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Epoxy-resin-based polymer material and preparation method and application thereof

A polymer material, epoxy resin technology, applied in the direction of additive processing, etc., can solve problems such as self-healing, repeated processing and molding, and mechanical properties.

Active Publication Date: 2021-03-05
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it will also affect the mechanical properties, and because the interior of ordinary cross-linked epoxy is fir

Method used

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  • Epoxy-resin-based polymer material and preparation method and application thereof
  • Epoxy-resin-based polymer material and preparation method and application thereof
  • Epoxy-resin-based polymer material and preparation method and application thereof

Examples

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preparation example Construction

[0082] The present invention also provides a preparation method of the epoxy resin-based polymer material described in the above technical solution, comprising the following contents:

[0083] After mixing the epoxy component, the curing agent and the metal salt additive, curing is carried out to obtain the epoxy resin-based polymer material.

[0084] In the present invention, the mixing is preferably mixing the epoxy component with the curing agent and then mixing with the metal salt additive.

[0085] The present invention does not have any special limitation on the mixing method, and it can be mixed in a manner well known to those skilled in the art.

[0086] After the mixing is completed, the present invention also preferably includes mixing the obtained mixture with epoxy diluent, toughening agent, plasticizer, inorganic filler, anti-yellowing agent, dyeing agent and solvent; There is no special limitation on the above mixing, as long as the process well known to those s...

Embodiment 1

[0101] Epoxy component A is:

[0102] Epoxy component B: KSR177;

[0103] Epoxy component C: propylene oxide;

[0104] Curing agent A:

[0105] Curing agent B: polyurethane (structural formula is: where R is -(CH 2 ) 6 -, R' is -(CH 2 CH 2 O) n -, n value is 10~15);

[0106] Curing agent C: polyamide 650;

[0107] Epoxy diluent: 1,4-butanediol diglycidyl ether

[0108] Metal salt additive: zinc chloride;

[0109] Toughener: nitrile rubber;

[0110] Plasticizer: dimethyl phthalate plasticizer;

[0111] Inorganic filler: calcium carbonate;

[0112] Anti-yellowing agent: hindered phenol antioxidant;

[0113] Dyeing agent: phthalocyanine blue;

[0114] Solvent: benzyl alcohol;

[0115] Above-mentioned each component consumption is as shown in table 1;

[0116] The epoxy resin-based polymer material prepared in Example 1 was tested for Tg, modulus, repair efficiency and repeated processing and molding.

[0117] The test process is to use DSC to measure Tg, TA...

Embodiment 2

[0122] Epoxy component A is:

[0123] Epoxy component B: E-51 type bisphenol A epoxy resin;

[0124] Epoxy Component C: Ethylene Oxide

[0125] Curing agent A:

[0126] Curing agent B: G600;

[0127] Curing agent C: aminoethylpiperazine curing agent;

[0128] Epoxy thinner: XY692

[0129] Metal salt additive: zinc chloride;

[0130] Toughener: nitrile rubber;

[0131] Plasticizer: dimethyl phthalate plasticizer;

[0132] Inorganic filler: white carbon black;

[0133] Anti-yellowing agent: Benzophenone;

[0134] Dyeing agent: titanium dioxide;

[0135] Solvent: dichloromethane;

[0136] Above-mentioned each component consumption is as shown in table 1;

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Abstract

The invention relates to the technical field of high polymer materials, in particular to an epoxy-resin-based high polymer material as well as a preparation method and application thereof. Coordination groups in the epoxy-resin-based polymer material and metal ions in the metal salt additive can form coordination bonds, and the coordination configuration and coordination strength of the coordination bonds are affected by temperature; therefore, the epoxy-resin-based high polymer material containing the coordination bond also shows different mechanical properties at different temperatures, andespecially at a relatively high temperature, the coordination bond has better dynamic property, the epoxy-resin-based high polymer material has better toughness, rapid variable stiffness, self-repairability and repeated processing formability, so that the high polymer material can be well applied to the variable stiffness field and the 3D printing field.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an epoxy resin-based polymer material and its preparation method and application. Background technique [0002] Epoxy resin-based polymer materials have been widely used in the fields of machinery, electricity, electronics, and aerospace because of their excellent comprehensive properties. However, the toughness of conventional epoxy resin is insufficient, and it is difficult to repeatedly process and shape after curing, so its application is greatly limited. Therefore, it is very important to improve these defects, and if it can be endowed with rapid stiffness, self-repairability and other characteristics, it will greatly expand the application of epoxy resin-based polymer materials. In previous studies, by adding some plasticizers (such as phthalates and phosphoric acid esters) and softeners (polypropylene glycol diglycidyl ether, polymerized fatty acid polyglycidyl ...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08K3/16C08K3/30C08K3/28C08K5/098B33Y70/10
CPCC08L63/00B33Y70/10C08K2003/168C08L2205/025C08L2205/035C08K2003/3045C08K2003/164C08K2003/162C08K2003/3072C08K2003/166C08K3/16C08K3/30C08K3/28C08K5/098
Inventor 李承辉汪方周何秀冲赖建诚
Owner NANJING UNIV