Basalt fiber composition with high alkali resistance and application method of basalt fiber composition

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

Active Publication Date: 2014-08-06
SOUTHEAST UNIV +1
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  • Abstract
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  • 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 re

Method used

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  • Basalt fiber composition with high alkali resistance and application method of basalt fiber composition
  • Basalt fiber composition with high alkali resistance and application method of basalt fiber composition
  • Basalt fiber composition with high alkali resistance and application method of basalt fiber composition

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Embodiment 1

[0105] For 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 Examples 1 and 2 is significantly lower. For example, when the erosion time is 2 hours and the erosion 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%. Compared with Comparative Example 1, the mass loss rate of Example 1 decreased by 79%, and compared with Comparative Example 2, it decreased by 69%. When the erosion time was 4 hours and the erosion temperature was 100°C, the mass loss rate of Comparative Example 1 was 9.7%, the mass loss rate of Comparative Example 2 was 7.3%, and the mass loss rate of Example 6 was 2.9%. Compared with Comparative Example 1, the mass loss rate of Example 6 decreased by 70%, and compared with Comparative Example 2, it decreased by 60%. This shows that the basal...

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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 resistance basalt fiber composition and an application method thereof. Background technique [0002] Continuous basalt fiber (Continuous Basalt Fiber, referred to as CBF or BF) is made of natural basalt ore as raw material. After melting at a high temperature of about 1500 ° C, it is formed by a platinum-rhodium alloy bushing plate and drawn continuously for tens of thousands of meters by a wire drawing machine. fiber. Continuous basalt fiber is a new type of environmentally friendly inorganic fiber material, which has 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 uses in aerospace,...

Claims

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Application Information

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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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