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Preparation method of hybrid size for improving basalt fiber performance and modification method

A basalt fiber modification technology, which is applied in the field of basalt fiber modification and basalt fiber surface modification slurry, can solve the problems of reducing the impact toughness of materials, achieve improved high temperature resistance, improved infiltration effect, and increased infiltration amount Effect

Inactive Publication Date: 2006-09-13
哈尔滨工业大学深圳研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can increase the interfacial bonding strength between fiber and resin, it reduces the impact toughness of the material at the same time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Adopt molar composition to be tetraethyl orthosilicate 1 ± 0.1, deionized water 4 ± 0.2, the mixed solution of absolute ethanol 15 ± 0.5 to prepare nano silicon dioxide precursor liquid, its reaction condition is that the solution pH value is 9.0 ± 0.2, reaction The temperature is 50±5°C, the reaction time is 6 hours, and the mixture is stirred at a constant speed. At the same time, γ-aminopropyl triethoxysilane is used to react with bisphenol A epoxy E-51, the molar ratio is 1.2:1, the reaction temperature is 45±5°C, the reaction time is 7 hours, and the mixture is stirred at a constant speed. Then the inorganic nanoparticle precursor solution is mixed with the modified epoxy resin for hybridization reaction, the mass ratio is inorganic nanoparticle mass: epoxy E-51 mass = 4.5: 100, reaction temperature 47 ± 5 ° C, reaction time 5 Hour. Using anhydrous acetone as a solvent, prepare a coating solution for fiber modification according to the mass ratio of epoxy mass to ...

Embodiment 2

[0031] Adopt molar composition to be tetraethyl orthosilicate 1 ± 0.1, deionized water 4 ± 0.2, the mixed solution of absolute ethanol 18 ± 0.5 to prepare nano silicon dioxide precursor liquid, its reaction condition is that the solution pH value is 4 ± 0.2, reaction The temperature is 45±2°C, the reaction time is 6 hours, and the mixture is stirred at a constant speed to prepare the inorganic nanoparticle precursor solution. Then (γ-phenylethynimino) propyltriethoxysilane was gradually added dropwise into the precursor solution of inorganic particles, and reacted at 50° C. for 6 hours to prepare the precursor solution of modified inorganic nanoparticles. The modified inorganic nanoparticle precursor solution is hybridized with the phenylacetylene-terminated isomeric polyimide solution, the mass ratio of the inorganic nanoparticle mass: isomeric polyimide=6:100, and the reaction temperature is 60 ± 1 °C, and the reaction time was 8 hours. Using absolute ethanol as a solvent, ...

Embodiment 3

[0033]The molar composition ratio is tetrabutyl titanate 1 ± 0.1, deionized water 3 ± 0.5, absolute ethanol 18 ± 0.5 mixed solution to prepare the nano-titanium dioxide precursor, the reaction conditions are that the pH value of the solution is 2.5 ± 0.1, and the reaction temperature 30±2°C, reaction time 10 hours, stirring at a constant speed. 3-Aminopropyltriethoxysilane is used to react with styrene-maleic anhydride oligomers, the molar ratio of the two is 1.1:1, the reaction temperature is 50°C, the reaction time is 7 hours, and the mixture is stirred at a constant speed. Then the precursor solution of inorganic nanoparticles is mixed with the modified styrene-maleic anhydride oligomer to carry out the hybridization reaction, and its mass ratio is the quality of inorganic nanoparticles: the quality of modified oligomer=10:100, the reaction temperature 50±5°C, the reaction time is 5 hours. The molar ratio of anhydrous acetone: absolute ethanol = 1:1 mixed solution is used ...

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Abstract

A process for improving the performance of basalt fibers features that an ultrasonic forced continuous coating technique is used for coating hybridized slurry on the surface of each basalt fiber to improve its tension strength and the resistance to high temp. A process for preparing said hybridized slurry is also disclosed.

Description

【Technical field】 [0001] The invention belongs to the field of fibers and their composite materials, and in particular relates to a basalt fiber surface modification slurry and a method for modifying the basalt fiber. 【Background technique】 [0002] Basalt fiber is a new type of inorganic reinforcing material. It is made of a single basalt ore. Its raw material is cheap and has abundant reserves, which has an outstanding price advantage. Basalt fibers are mainly composed of SiO 2 、Al 2 o 3 , Fe 2 o 3 , CaO, MgO, K 2 O, TiO 2 It has excellent mechanical, chemical and thermodynamic properties, especially in high temperature resistance, chemical medium resistance and heat insulation, insulation, sound insulation performance, etc. Compared with traditional glass fiber, it has obvious advantages. In addition, basalt fiber products will not release toxic substances in the air and water media, and become the parent material of the soil after degradation, which is environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/42C03C25/24C03C25/16
Inventor 曹海琳张华陈宇张志谦李忠郢
Owner 哈尔滨工业大学深圳研究院
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