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Nanowire-modified unsaturated polyester resin reinforced material and preparation method thereof

A technology of polyester resin and reinforcement materials, applied in the field of nanowire modified unsaturated polyester resin reinforcement materials and its preparation, which can solve the problems of insufficient strength improvement, diverse needs of difficult products, and poor elasticity of cross-linked networks and other issues, to achieve excellent mechanical properties, good heat resistance, high thermal conductivity, and good compatibility

Active Publication Date: 2019-03-12
PUYANG SHENGYUAN ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) Improve the strength: 1. Synthesize a new reinforced unsaturated polyester resin by changing the chemical composition, but the cost is high, the process is complicated, and it is difficult to meet the diversified needs of the product; 2. By changing the crosslinking network of the unsaturated polyester resin structure, but the elasticity of the cross-linked network is poor, and the strength is still not greatly improved; third, a semi-interpenetrating network structure is formed, but when the external force impacts, the overall network does not undergo a large deformation, and the deformation resistance against external force is limited. ; 4. Directly add reinforcing materials to the unsaturated polyester resin system;
[0004] (2) Improve heat resistance and thermal conductivity: 1. Synthesize a new reinforced unsaturated polyester resin by changing the chemical composition, but the cost is high, the process is complicated, and it is difficult to adapt to the diverse needs of products; 2. Directly in unsaturated polyester Add materials with better thermal conductivity to the resin system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A nanowire modified unsaturated polyester resin reinforcement material, which is composed of the following raw materials in parts by weight: 50 parts of phthalic acid type unsaturated polyester resin, 5 parts of carbon fiber, 30 parts of styrene, modified silver 15 parts of nanowires, 5 parts of modified silicon carbide nanowires, and 0.5 parts of methyl ethyl ketone peroxide.

[0027] A method for preparing a nanowire-modified unsaturated polyester resin reinforcement material, comprising the following steps:

[0028] (1) Add silver nanowires to acetone, then add silane coupling agent and then ultrasonically disperse; add the dispersion liquid to the condensation reflux device, reflux at 80°C for 8 hours, stop the reaction and centrifuge to remove the supernatant, and then remove the supernatant at 60°C Drying under the condition of ℃ to prepare modified silver nanowires for future use;

[0029] (2) Add silicon carbide nanowires to acetone, then add a silane coupling ...

Embodiment 2

[0038]A nanowire modified unsaturated polyester resin reinforcement material, which is composed of the following raw materials in parts by weight: 80 parts of isophthalic acid type unsaturated polyester resin, 8 parts of carbon nanotubes, 40 parts of methyl methacrylate 18 parts of modified silver nanowires, 8 parts of modified silicon carbide nanowires, 0.5 parts of cyclohexanone peroxide and 0.5 parts of tert-butyl peroxybenzoate.

[0039] A method for preparing a nanowire-modified unsaturated polyester resin reinforcement material, comprising the following steps:

[0040] (1) Add silver nanowires to acetone, then add silane coupling agent and then ultrasonically disperse; add the dispersion liquid to the condensation reflux device, reflux at 80°C for 8 hours, stop the reaction and centrifuge to remove the supernatant, and then remove the supernatant at 60°C Drying under the condition of ℃ to prepare modified silver nanowires for future use;

[0041] (2) Add silicon carbide...

Embodiment 3

[0050] A nanowire modified unsaturated polyester resin reinforcement material is composed of the following raw materials in parts by weight: 50 parts of bisphenol A type unsaturated polyester resin, 50 parts of vinyl type unsaturated polyester resin, 10 parts of graphene 50 parts of acrylate, 20 parts of modified silver nanowires, 10 parts of modified silicon carbide nanowires, and 2 parts of azobisisobutyronitrile.

[0051] A method for preparing a nanowire-modified unsaturated polyester resin reinforcement material, comprising the following steps:

[0052] (1) Add silver nanowires to acetone, then add silane coupling agent and then ultrasonically disperse; add the dispersion liquid to the condensation reflux device, reflux at 80°C for 8 hours, stop the reaction and centrifuge to remove the supernatant, and then remove the supernatant at 60°C Drying under the condition of ℃ to prepare modified silver nanowires for future use;

[0053] (2) Add silicon carbide nanowires to ace...

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Abstract

Disclosed are a nanowire-modified unsaturated polyester resin reinforced material and a preparation method thereof. The nanowire-modified unsaturated polyester resin reinforced material is composed ofraw materials including, by weight part, 50-100 parts of unsaturated polyester, 5-10 parts of filler, 30-50 parts of diluent, 15-20 parts of modified silver nanowires, 5-10 parts of modified siliconcarbide nanowires and 0.5-2 parts of initiator. The preparation method comprises modifying silver nanowires and silicon carbide nanowires with acetone and silane coupling agent for standby application; by weight part weighing out and mixing the unsaturated polyester, the diluent and the modified silver nanowires and the modified silicon carbide nanowires at 10-50 DEG C for 1-2 h to obtain a mixedresin solution; sequentially and continuously stirring the 0.5-2 parts of initiator and the 5-10 parts of filler into the mixed resin solution for 1-2 h, performing vacuum defoamation to obtain the nanowire-modified unsaturated polyester resin reinforced material. The prepared nanowire-modified unsaturated polyester resin reinforced material is excellent in mechanical performance and high in strength, heat resistance and thermal conductivity coefficient and can effectively increase the corrosion resistance and service life of prepared unsaturated polyester resin.

Description

technical field [0001] The invention relates to the field of unsaturated polyester resins, in particular to a nanowire-modified unsaturated polyester resin reinforcing material and a preparation method thereof. Background technique [0002] Unsaturated polyester resin, a linear prepolymer formed by melting polycondensation of dihydric alcohol and unsaturated dibasic acid anhydride or unsaturated dibasic carboxylic acid, saturated dibasic anhydride or saturated dibasic carboxylic acid, under heating, light, Copolymerized with vinyl monomer under the action of radiation and initiator, cross-linked and cured into a thermosetting resin with network structure. Unsaturated polyester resins have many advantages, such as easy availability of raw materials, chemical corrosion resistance, and excellent electrical and mechanical properties. Unsaturated polyester resin has long attracted people's attention due to its excellent formability and good comprehensive performance. It is widel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/06C08K13/06C08K9/06C08K7/00C08K3/08C08K3/34C08K7/06
CPCC08K3/08C08K3/34C08K7/00C08K7/06C08K9/06C08K13/06C08K2003/0806C08K2201/011C08L2201/08C08L67/06
Inventor 郑朝生曹文胜李泽强
Owner PUYANG SHENGYUAN ENERGY TECH
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