A kind of high alkali resistance basalt fiber composition and its application method

A technology of basalt fiber and application method, which is applied in the field of basalt fiber materials, can solve problems such as polluted air, unsatisfactory alkali resistance, and hazards of surrounding biological growth, and achieves a small loss rate of tensile strength, avoiding phase separation defects, and wire drawing operations The effect of increasing the temperature

Active Publication Date: 2016-01-06
SOUTHEAST UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

SiO in this patent 2 with Al 2 o 3 The sum of the contents is relatively high, and the alkali resistance is not ideal. The reported data is: Ca(OH) at 100°C 2 After soaking in saturated solution for 4 hours, the tensile strength of the fiber is >800MPa, and the retention rate of monofilament strength is >75%.
In addition, this patent uses fluorite as a raw material, which will decompose and produce fluorine-containing gas during the fiber production process, pollute the air, and cause harm to the growth of surrounding organisms

Method used

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  • A kind of high alkali resistance basalt fiber composition and its application method
  • A kind of high alkali resistance basalt fiber composition and its application method
  • A kind of high alkali resistance basalt fiber composition and its application method

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Embodiment 1

[0105] The alkali-resistant basalt fibers of Examples 1 to 6, under the same alkali corrosion conditions, the mass loss rate of the basalt fibers of Comparative Example 1 and Comparative Example 2 is greatly reduced. For example, when the etching time is 2 hours and the etching temperature is 25°C, the mass loss rate of Comparative Example 1 is 6.3%, the mass loss rate of Comparative Example 2 is 4.2%, and the mass loss rate of Example 1 is 1.3%. The mass loss rate of Example 1 was reduced by 79% compared with Comparative Example 1, and by 69% compared with Comparative Example 2. When the etching time is 4 hours and the etching temperature is 100°C, the mass loss rate of Comparative Example 1 is 9.7%, the mass loss rate of Comparative Example 2 is 7.3%, and the mass loss rate of Example 6 is 2.9%. The mass loss rate of Example 6 was reduced by 70% compared to Comparative Example 1, and 60% compared with Comparative Example 2. This indicates that the basalt fiber composition of...

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Abstract

The invention discloses a basalt fiber composition with high alkali resistance. The basalt fiber composition comprises the following ingredients by weight: 50% to 60.5% of SiO2, 3.6% to 7.5% of Al2O3, 0.5% to 1.8% of MgO, 8.2% to 15.5% of CaO, 8% to 15% of Fe2O3 and FeO, 1% to 4.5% of K2O, 3% to 6% of Na2O, 1% to 3% of TiO2, 3.5% to 9.5% of ZrO2, and 0.5% to 1.3% of CeO2. As a proper quantity of CeO2 is used, the alkali-resisting performance and drawing operation performance of the basalt fiber are improved. The basalt fiber prepared from the raw materials has excellent mechanical property and alkali resistance, can be used for reinforcing a cement-based composite individually, and also can be used as a reinforcing material of a resin matrix-based composite with high alkali resistance.

Description

Technical field [0001] The invention relates to the field of basalt fiber materials, in particular to a high alkali-resistant basalt fiber composition and an application method thereof. Background technique [0002] Continuous Basalt Fibre (CBF or BF for short) is made of natural basalt ore as raw material. After being melted at a high temperature of about 1500°C, it is formed by a platinum-rhodium alloy slip plate, and the fiber is drawn continuously for tens of thousands of meters by a drawing machine at high speed. Continuous basalt fiber is a new type of environmentally friendly inorganic fiber material with excellent properties such as light weight, high strength, high temperature resistance, corrosion resistance, oxidation resistance, radiation protection, heat insulation and sound insulation. It is another high-tech fiber after carbon fiber, aramid fiber, and ultra-high molecular weight polyethylene fiber. It has a wide range of applications in aerospace, automotive and sh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C13/06
CPCC03C3/087C03C13/06
Inventor 吴智深刘建勋吴刚汪洋
Owner SOUTHEAST UNIV
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