Preparation method of nano modified soaking agent used for basalt fiber

A basalt fiber and nano-modification technology, which is applied in the field of preparation of nano-modified sizing agents, can solve problems such as human skin irritation, unfavorable energy saving and environmental protection, and large environmental pollution, and achieve improved tensile properties and shear strength, and good lubrication effect, the effect of improving mechanical properties

Inactive Publication Date: 2015-09-23
SICHUAN AEROSPACE WU YUAN COMPOSITE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) The production process of glass fiber consumes a lot of energy, which is not conducive to energy conservation and environmental protection;
[0004] (2) The preparation process of glass fiber is harmful to the human body, especially the glass fiber wool will stimulate the human skin and cannot be decomposed or absorbed after being inhaled into the human body, which may cause lung diseases or even cancer;
[0005] (3) Environmental pollution is serious, and glass fiber composite materials cannot be recycled or naturally degraded after being discarded, which is not conducive to environmental protection, etc.
[0007] At present, there are three commonly used basalt fiber sizing agents: epoxy emulsion, polyurethane emulsion and polyester emulsion. Studies have shown that the existing three basalt fiber sizing agents still have certain limitations in practical applications, such as: polyurethane emulsion as a wetting agent The agent is hydrolyzed in an alkaline environment, and the polyester emulsion is suitable for use in textiles as a wetting agent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation method of the nano-modified sizing agent involved in this embodiment comprises the following steps:

[0030] A: The film-forming agent is prepared by polymerizing the epoxy resin monomer in the presence of an emulsifier, and the particle size of the film-forming agent is controlled at 0.15 μm, and the concentration is controlled at 45%;

[0031] B: Use H 2 N-silane coupling agent and H 2 The mixture of NCONH-silane coupling agent is used as coupling agent for subsequent use;

[0032] C: Use fatty acid amide as lubricant, spare;

[0033] D: Use water to dilute the film-forming agent prepared in step A with water to a concentration of 40%. After stirring evenly, add the H selected in step B in sequence. 2 The N-silane coupling agent and the lubricant prepared in step C are mixed fully and then stirred and mixed for 1 hour to obtain a sizing agent emulsion, and modified nano-SiO is added to the sizing agent emulsion. 2 Particles were mixed in a high-spe...

Embodiment 2

[0036] The preparation method of the nano-modified sizing agent involved in this embodiment comprises the following steps:

[0037] A: The film-forming agent is prepared by polymerizing the epoxy resin monomer in the presence of an emulsifier, and the particle size of the film-forming agent is controlled at 0.75 μm, and the concentration is controlled at 52%;

[0038] B: Use H 2 N-silane coupling agent and H 2 The mixture of NCONH-silane coupling agent is used as coupling agent for subsequent use;

[0039] C: Use a mixture of fatty acid amide, polyester, synthetic ester and carboxylic acid as a lubricant, spare, the mass ratio of fatty acid amide, polyester, synthetic ester and carboxylic acid is 1:3:2:2;

[0040] D: Use water to dilute the film-forming agent prepared in step A with water to a concentration of 55%. After stirring evenly, add the H selected in step B in sequence. 2 The N-silane coupling agent and the lubricant prepared in step C are mixed fully and then stir...

Embodiment 3

[0043] The difference between this embodiment and Example 1 is that in step A involved in this embodiment, the structural formula of the emulsifier used satisfies:

[0044] .

[0045] In percentage terms, the nano-modified sizing agent obtained in this example contains 48% film-forming agent, 8% coupling agent, 1.2% lubricant, and 5.5% modified nano-SiO 2 particles and the rest is water.

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Abstract

The invention discloses a preparation method of a nano modified soaking agent used for basalt fiber. The preparation method includes: adopting a mixed emulsion of the nano modified soaking agent prepared by film former, coupling agent, lubricant, modified nano SiO2 particle and water; taking the film former as a main material; using water to dilute binder; adding the coupling agent, the lubricant and the modified nano SiO2 particle; stirring after being fully mixed to obtain a finished nano modified soaking agent product. The nano modified soaking agent is mainly used for coating the basalt fiber, is high in impregnability and stability, has effect of improving clustering performance and wear resistance of the basalt fiber and can improve mechanical performance of the basalt fiber, and cracking strength, drawing performance and shearing strength are all improved.

Description

technical field [0001] The invention belongs to the field of preparation of composite materials, in particular to a preparation method of a nano-modified sizing agent for basalt fibers. Background technique [0002] In the existing field of composite materials, the fibers used as composite material reinforcement mainly include glass fiber, carbon fiber, boron fiber, alumina fiber, silicon carbide fiber, polyethylene fiber, etc., but due to price constraints, most fibers are only available. Used in the military field, only glass fiber is widely used in the civilian field, but in the actual application process, glass fiber still has certain defects as a composite material reinforcement, such as: [0003] (1) The production process of glass fiber consumes a lot of energy, which is not conducive to energy conservation and environmental protection; [0004] (2) The preparation process of glass fiber is harmful to the human body, especially the glass fiber wool will stimulate the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K13/06C08K9/00C08K3/36C08K5/544C08J3/03
Inventor 黄明
Owner SICHUAN AEROSPACE WU YUAN COMPOSITE
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