Method for regenerating glass fibers from glass fiber reinforced composite wastes

A reinforced composite material and glass fiber technology, which is applied in the field of glass fiber reinforced composite material waste recycled glass fiber, can solve the problems of destroying the ecological environment, groundwater and soil pollution, and achieve the promotion of energy saving and emission reduction, reduction of garbage production, and environmental benefits Unified effect with economic benefits

Inactive Publication Date: 2021-01-01
浙江联昌电气科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A large number of glass fiber wastes in the existing market are directly dumped or buried in the form of garbage, because the heavy metals and harmful substances in the glass fiber composite materials will be separated, and infiltration into the soil will pollute the groundwater and soil, seriously Destroying the ecological environment, the problem to be solved at present is how to process and reuse the glass fiber waste to extract the main materials contained in it is the main problem to be solved at present

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for regenerating glass fibers from glass fiber reinforced composite waste, the recovery method comprising the following steps:

[0024] S1. Collect, remove impurities, wash and dry the leftover waste generated in the production of glass fiber composite materials or the waste generated during its use. The used leftover waste includes waste generated from construction, home decoration or factory processing;

[0025] S2. Soak the waste glass fiber composite material in the osmotic degradation agent at 0-100°C for 1-300 hours, and seal the top at the same time;

[0026] S3, then filter and centrifuge the glass fiber composite material waste that has been infiltrated and degraded completely to obtain glass fibers and soaking waste liquid, and further wash and dry the separated glass fibers with a solvent to obtain regenerated glass fibers;

[0027] S4. Add clay, gypsum, quicklime, slaked lime and cement (the mass ratio of each component is 15-80%) according to the m...

Embodiment 2

[0029] A method for regenerating glass fibers from glass fiber reinforced composite waste, the recovery method comprising the following steps:

[0030] S1. Collect, remove impurities, wash and dry the leftover waste generated in the production of glass fiber composite materials or the waste generated in the use process;

[0031] S2. Immerse the waste glass fiber composite material in the osmotic degradation agent for 1-300 hours at 0-100°C, and seal the top at the same time. The osmotic degradation agent can be neutralized with alkali and used as an additive for coating or adhesive;

[0032] S3, then filter and centrifuge the glass fiber composite material waste that has been infiltrated and degraded completely to obtain glass fibers and soaking waste liquid, and further wash and dry the separated glass fibers with a solvent to obtain regenerated glass fibers;

[0033] S4. Add clay, gypsum, quicklime, slaked lime and cement (the mass ratio of each component is 15-80%) accordin...

Embodiment 3

[0035] A method for regenerating glass fibers from glass fiber reinforced composite waste, the recovery method comprising the following steps:

[0036] S1. Collect, remove impurities, wash and dry the leftover waste generated in the production of glass fiber composite materials or the waste generated in the use process;

[0037] S2. Soak the waste glass fiber composite material in the osmotic degradation agent at 0-100°C for 1-300 hours, and seal the top at the same time;

[0038] S3, then filter and centrifuge the completely degraded glass fiber composite waste to obtain glass fibers and soak waste liquid, further wash and dry the separated glass fibers with a solvent to obtain regenerated glass fibers, soak and degrade the time Control it for more than 5 hours. At the same time, the glass fiber is filtered and separated by a filter screen to filter out the particulate impurities contained in it. The mesh number of the filter screen is 16 mesh, and the sieve size: 1.00mm;

...

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PUM

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Abstract

The invention discloses a method for regenerating glass fibers from glass fiber reinforced composite material wastes. The method comprises the following steps: collecting leftover materials generatedin the production of glass fiber composite materials or wastes generated in the use process of the leftover materials, removing impurities, washing and drying; immersing the glass fiber composite material wastes into a permeation degradation agent, soaking for 1-300 hours at the temperature of 0-100 DEG C, and sealing the top; and then filtering the completely permeated and degraded glass fiber composite material wastes, and carrying out centrifugal separation to obtain the glass fibers and a permeated waste liquid. The glass fiber composite material wastes are processed again, the glass fibers contained in the glass fiber composite material wastes are filtered out, and the glass fibers are recycled, so the problems of environment and water pollution are solved, a large amount of garbage can be prevented from being generated, the garbage yield is reduced, the environmental protection requirement advocated by the state is met, energy conservation and emission reduction are promoted, andunification of environmental benefits and economic benefits is achieved.

Description

technical field [0001] The invention relates to the technical field of recycling glass fiber composite materials, in particular to a method for regenerating glass fibers from waste glass fiber reinforced composite materials. Background technique [0002] Glass fiber reinforced composite materials are glass fiber reinforced plastics. Glass fiber reinforced plastics include epoxy resin (EPR), unsaturated polyester (UPR), phenolic resin (PFR), polyamide (Polyamide), bis Maleimide (BMI) and thermoplastic polyethylene (PE), polystyrene (PS), polyphenylene sulfide (PPS), polyetheretherketone (PEEK) and other synthetic resins are used as the matrix, and hand lay-up is used. Formed by methods such as lamination, spraying or winding, a composite structural material with glass fiber or its products as a reinforcing material, commonly known as FRP, because of its light weight, high strength, corrosion resistance, electrical insulation, instant high temperature resistance, transmission ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/025C04B28/14C04B14/42
CPCC03B37/025C04B28/14C04B14/42
Inventor 陈建远吴正如
Owner 浙江联昌电气科技有限公司
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