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Method for performing fiber surface modification on basalt fiber by using silicon carbon black

A basalt fiber and fiber surface technology, applied in the field of fiber modification, can solve the problems of non-polar matrix incompatibility, product performance decline, difficult to disperse uniformly, etc., to increase roughness, improve wettability, and good adsorption effect. Effect

Active Publication Date: 2019-02-15
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the silica, silicate, and clay-based inorganic fillers, the surface of the particles contains a large number of hydroxyl groups, which exhibit strong polarity, are incompatible with the non-polar matrix, and are difficult to disperse evenly, resulting in a decrease in product performance.

Method used

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  • Method for performing fiber surface modification on basalt fiber by using silicon carbon black
  • Method for performing fiber surface modification on basalt fiber by using silicon carbon black

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of method that carries out fiber surface modification to basalt fiber with silicon carbon black: as figure 1 and figure 2 as shown,

[0032] 1) Take 1 mL of silane coupling agent KH-570 and hydrolyze it in 200 mL of deionized water, adjust the pH value to 5 with glacial acetic acid, and carry out hydrolysis in a water bath at 60°C for 2 hours;

[0033] 2) Take 1g of silicon carbon black after ball milling, disperse it in 100mL deionized water, stir it fully on a magnetic stirrer, and disperse it fully and evenly after ultrasonic treatment, and filter the dispersed suspension with slow filter paper to remove precipitated particles, Take the suspension for use;

[0034] 3) Add the suspension to the hydrolyzed silane coupling agent solution, add water to make the volume to 500mL, and fully stir on a magnetic stirrer for 2 hours to allow the silicon carbon black particles to fully react with the silane coupling agent;

[0035] 4) Soak the basalt fibers with 2mol / ...

Embodiment 2

[0037] A kind of method that silicon carbon black carries out fiber surface modification to basalt fiber:

[0038] 1) Take 1 mL of silane coupling agent KH-550 and 1 mL of KH-570 and hydrolyze them together in 200 mL of deionized water, adjust the pH value to 5 with glacial acetic acid, and carry out hydrolysis in a water bath at 60°C for 2 hours;

[0039] 2) Take 0.5g of silicon carbon black after ball milling, disperse it in 200mL deionized water, fully stir it on a magnetic stirrer, and ultrasonically treat it for 30min. use;

[0040] 3) Add the suspension to the hydrolyzed silane coupling agent solution, add water to make the volume to 500mL, and fully stir on a magnetic stirrer for 2 hours to allow the silicon carbon black particles to fully react with the silane coupling agent;

[0041] 4) Soak the fiber with 1mol / L hydrochloric acid, take it out, wash and dry it, place the dried basalt fiber in a mesh container, suspend it in the coupling agent solution, and treat the fi...

Embodiment 3

[0043] A kind of method that silicon carbon black carries out fiber surface modification to basalt fiber:

[0044] 1) Take 2 mL of silane coupling agent KH-570 and hydrolyze it in 200 mL of soft water, adjust the pH value to 4 with glacial acetic acid, and carry out hydrolysis in a water bath at 70°C for 1 hour;

[0045] 2) Take 0.5g of silicon carbon black after ball milling, disperse it in 200mL deionized water, fully stir it on a magnetic stirrer, and ultrasonically treat it for 40min. The suspension is ready for use;

[0046] 3) Add the suspension to the hydrolyzed silane coupling agent solution, add water to make the volume to 500mL, and fully stir in a water bath on a magnetic stirrer for 90 minutes to allow the silicon carbon black particles to fully react with the silane coupling agent;

[0047] 4) Soak the fiber with 2mol / L hydrochloric acid, take it out, wash and dry it, place the dried basalt fiber in a mesh container, suspend it in the coupling agent solution, and...

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Abstract

The invention discloses a method for performing fiber surface modification on basalt fiber by using silicon carbon black, and belongs to the technical field of fiber modification. Coating treatment and attachment of adsorbing particles are continuously carried out in the same step, so that the conventional processes of drying and crushing the particles and then preparing a suspension are omitted,an anti-settling step using an emulsifier and the like are omitted, micro settlement is resisted through flowing, and a better adsorbing effect is obtained. According to the method, the silicon carbonblack is treated by a silane coupling agent first and then the treated silicon carbon black particles are attached to the surface of the basalt fiber, so that the roughness of the fiber surface is enhanced and the wettability of the fiber is improved while the original strength property of the fiber is not changed, and thus a better interfacial bonding force exists between the basalt fiber and abase material and application of a basalt fiber composite material is met.

Description

technical field [0001] The invention belongs to the technical field of fiber modification, and in particular relates to a method for surface adhesion treatment of basalt fiber with modified silicon carbon black. Background technique [0002] Basalt fiber (BF) is a new type of environmentally friendly inorganic fiber. It is made of basalt ore melted at 1450 ° C ~ 1500 ° C and quickly drawn through a platinum-rhodium alloy wire drawing bushing. It has excellent mechanical properties, high corrosion resistance and chemical resistance. Stability is one of the four major fibers that our country focuses on. But compared with glass fiber, the development of basalt fiber is still in its infancy. There are many technical problems and the production process needs to be improved. Since the fiber is formed by high-temperature melting and drawing of basalt, the surface of the fiber is smooth, the internal structure is compact, and the surface wettability is poor. The interface strengt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/42
CPCC03C25/42
Inventor 梁继才龚光耀于开锋李义梁策
Owner JILIN UNIV
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