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Recycling method of epoxy resin composite material, obtained glass fiber and application of glass fiber

A technology of epoxy resin and composite materials, applied in plastic recycling, recycling technology, production of bulk chemicals, etc., can solve the problems of complex recycling process, polluted environment, surface properties of recycled products, and harsh experimental conditions, and achieves improved solubility. effect, the effect of reducing the decomposition temperature, reducing the viscosity and the difficulty of operation

Pending Publication Date: 2021-11-05
GUANGDONG POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a recovery method of epoxy resin composite material, obtained glass fiber and its application to solve the technical problems of complex recovery process of epoxy resin composite material, harsh experimental conditions, polluted environment and poor surface properties of recovered products

Method used

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  • Recycling method of epoxy resin composite material, obtained glass fiber and application of glass fiber
  • Recycling method of epoxy resin composite material, obtained glass fiber and application of glass fiber
  • Recycling method of epoxy resin composite material, obtained glass fiber and application of glass fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of recovery method of epoxy resin composite material, comprises the following steps:

[0034] S1. According to the actual needs of the product, the epoxy resin composite material is cut into sheet samples of suitable size. The epoxy resin composite material is a composite insulator mandrel retired from the power industry. It is specifically composed of epoxy resin and glass fiber, and then placed in sealed bags for use;

[0035] S2. Mix the ionic liquid and organic solvent to make a composite solvent, mix according to the ratio of the solid-to-liquid ratio of the composite solvent and the epoxy resin composite material to 15:1, and add it to a mechanically stirred reactor. The volume of the composite solvent is mechanically Stir 1 / 3-3 / 4 of the volume of the reactor, control the reaction temperature to 150°C, control the reaction time to 3h, and the stirring blade speed of the mechanically stirred reactor to 150rpm to obtain a solid-liquid mixture;

[0036] Wherein...

Embodiment 2

[0040] A kind of recovery method of epoxy resin composite material, comprises the following steps:

[0041] S1. According to the actual needs of the product, the epoxy resin composite material is cut into sheet samples of suitable size. The epoxy resin composite material is a composite insulator mandrel retired from the power industry. It is specifically composed of epoxy resin and glass fiber, and then placed in sealed bags for use;

[0042] S2. Mix the ionic liquid and organic solvent to make a composite solvent, mix according to the ratio of the solid-to-liquid ratio of the composite solvent and the epoxy resin composite material to 20:1, and add it to a mechanically stirred reactor. The volume of the composite solvent is mechanically 1 / 3-3 / 4 of the volume of the reactor was stirred, the reaction temperature was controlled to be 140°C, the reaction time was controlled to be 5h, and the rotating speed of the stirring blade of the mechanically stirred reactor was 150rpm to ob...

Embodiment 3

[0047] A kind of recovery method of epoxy resin composite material, comprises the following steps:

[0048] S1. According to the actual needs of the product, cut the epoxy resin composite material into sheet samples of appropriate size. The epoxy resin composite material is a composite insulator mandrel retired from the power industry. It is mainly composed of epoxy resin and glass fiber, and then placed Keep it in a sealed bag;

[0049] S2. Mix the ionic liquid and organic solvent to make a composite solvent, mix according to the ratio of the solid-to-liquid ratio of the composite solvent and the epoxy resin composite material to 20:1, and add it to a mechanically stirred reactor. The volume of the composite solvent is mechanically Stir 1 / 3-3 / 4 of the volume of the reactor, control the reaction temperature to 130°C, control the reaction time to 5h, and the stirring blade speed of the mechanically stirred reactor to 500rpm to obtain a solid-liquid mixture;

[0050] Wherein, t...

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PUM

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Abstract

The invention discloses a recycling method of an epoxy resin composite material, obtained glass fibers and application of the glass fibers, and relates to the field of organic solid material recycling. The preparation method specifically comprises the following steps: S1, mixing an epoxy resin composite material and a composite solvent, placing the mixture in a pressure container, and controlling the reaction temperature to be 120-150 DEG C and the reaction time to be 3-7 hours to prepare a solid-liquid mixture; and S2, filtering the solid-liquid mixture to obtain decomposition filtrate and a solid-phase product, wherein the solid-phase product is glass fibers, and the glass fibers are applied to the fields of waterproof base materials, energy-saving auxiliary reinforcing materials, reinforced cementing materials, building decoration materials and the like. The composite solvent is used for degrading the epoxy resin composite material, the experimental process is simple, the reaction condition is mild, the performance of the obtained product is excellent, and the composite solvent is environmentally friendly and has economic benefits.

Description

technical field [0001] The invention relates to the field of recycling organic solid materials, in particular to a method for recycling epoxy resin composite materials, obtained glass fibers and applications thereof. Background technique [0002] Epoxy resin is one of the three known thermosetting resins. The molecular chain contains active epoxy groups, making them easy to cross-link with various types of curing agents to form a cured product with a three-dimensional network structure. The cured epoxy resin has excellent electrical insulation, heat resistance, cold resistance, corrosion resistance and other properties. It is widely used in electric power, chemical industry, energy, building materials, transportation, machinery, hydraulic and other industries. It is mainly used For adhesives, corrosion-resistant coatings and electrical insulation materials. In recent years, my country's epoxy resin industry has entered a period of vigorous development, and the application f...

Claims

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Application Information

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IPC IPC(8): C08J11/28C08J11/08C08J11/00C08L63/00
CPCC08J11/28C08J11/08C08J11/00C08J2363/00Y02W30/62Y02P20/54
Inventor 李丽邹庄磊范圣平樊小鹏王瑞雪詹路许振明
Owner GUANGDONG POWER GRID CO LTD