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Alkali-resistant basalt fiber impregnating compound and preparation method thereof

A technology of basalt fiber and sizing agent, which is applied in the field of alkali-resistant basalt fiber sizing agent and its preparation, can solve the problems of high brittleness and high rigidity of basalt fiber, and achieves reduction of flying hair and broken wires, improvement of overall performance, and improvement of tensile strength. the effect of strength

Active Publication Date: 2021-08-31
四川玄武岩纤维新材料研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the basalt fibers obtained by this method are brittle and rigid.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] ZrO 2 Emulsion preparation method comprises: Zr(NO 3 ) 4 The solution is mixed with dimethyl oxalate and dispersed by ultrasonic for 20-30min.

[0033] Zr(NO in this application 3 ) 4 The concentration of the solution is 0.3-0.5mol / L; Zr(NO 3 ) 4 Zr(NO 3 ) 4 The molar ratio with dimethyl oxalate is 1:1-2. Found through research of inventor, adopts the Zr(NO of specific concentration and specific molar ratio 3 ) 4 The solution was mixed with dimethyl oxalate to prepare ZrO 2 Emulsion, obtained ZrO 2 The uniformity of the emulsion is better, and it can be better enriched on the surface of the fiber.

[0034] The film-forming agent is the key component of the sizing agent, which can bundle and bond basalt fibers. It has good elasticity, wear resistance and cohesiveness, and plays a good role in protecting the fibers. Make sure not to open the fiber, not loose. Specifically in this embodiment, the film forming agent includes but is not limited to at least one ...

Embodiment 1

[0048] This embodiment provides an alkali-resistant basalt fiber sizing agent, the components of which include by mass percentage:

[0049] ZrO 2 Emulsion 8%, epoxy resin emulsion 10%, polyvinyl acetate 6%, silane coupling agent 0.5%, ammonia 2%, ammonium chloride 0.3%, polyol polyoxyethylene ether 0.2% and the rest ionized water.

[0050] The preparation method comprises: directly mixing the above components.

Embodiment 2

[0052] This embodiment provides an alkali-resistant basalt fiber sizing agent, the components of which include by mass percentage:

[0053] ZrO 2 Emulsion 8%, epoxy resin emulsion 10%, polyvinyl acetate 6%, silane coupling agent 0.5%, ammonia 2%, ammonium chloride 0.3%, polyol polyoxyethylene ether 0.2% and the rest ionized water.

[0054] Its preparation method includes: Zr(NO with a purity greater than 99%) 3 ) 4 Crystals were dissolved in deionized water to make a 0.4mol / L solution, and dimethyl oxalate was added to make Zr(NO 3 ) 4 The molar ratio to dimethyl oxalate is 1:1, during which the stirring is continued, and after ultrasonic dispersion for 30min, ZrO 2 Emulsion. Add half of water and ammonia and silane coupling agent to ZrO in proportion 2 Stir continuously in the emulsion, then add epoxy resin emulsion and polyvinyl acetate, stir for more than 15 minutes, finally add the remaining ingredients and deionized water and stir for 15 minutes, and ultrasonically...

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Abstract

The invention discloses an alkali-resistant basalt fiber impregnating compound and a preparation method thereof, and relates to the technical field of fiber impregnating compounds. The alkali-resistant basalt fiber impregnating compound comprises the components in percentage by mass: 5-10% of ZrO2 emulsion, 6-12% of a film-forming agent, 5-8% of polyvinyl acetate, 0.2-1.2% of a coupling agent, 1-2% of a pH regulator, 0.3-0.5% of a lubricant and the balance being water. The ZrO2 emulsion is added into the impregnating compound, so that the ZrO2 emulsion can be uniformly dispersed in the impregnating compound; ZrO2 can be enriched on the surface of a fiber when the basalt fiber is infiltrated in the impregnating compound, and the adhesion of the impregnating compound on the surface of the fiber can be further increased by the enrichment of ZrO2, so that a basalt fiber bundle is not dispersed, and the whole impregnating compound is alkali-resistant.

Description

technical field [0001] The invention relates to the technical field of fiber sizing, in particular to an alkali-resistant basalt fiber sizing and a preparation method thereof. Background technique [0002] At present, due to the advantages of high specific strength, large specific modulus, designable material properties, corrosion resistance and durability, and good thermal expansion coefficient and concrete, the prepared fiber reinforced composite materials can meet the requirements of modern structures to large spans, high towers, Heavy-duty, light-weight, high-strength, and the need for work and development under harsh conditions, and can also meet the requirements of the industrialization of modern building construction, so it is more and more widely used in various civil buildings, bridges, highways, oceans, hydraulic engineering structures and underground structures. These applications require that it can maintain high strength and chemical stability in the matrix, es...

Claims

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Application Information

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IPC IPC(8): C03C25/36C03C25/16
CPCC03C25/36C03C25/16
Inventor 杨中甲
Owner 四川玄武岩纤维新材料研究院
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