Glass fiber

A glass fiber, total mass technology, applied in the field of glass fiber, can solve the problems of inability to meet the high modulus field, high crystallization temperature, and difficulty in fiber forming.

Inactive Publication Date: 2013-05-08
CHONGQING POLYCOMP INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is said that the tensile modulus of this glass fiber can reach 12.8KPSI (about 88.3GPa), but its molding temperature is too high, basically exceeding 2600°F (about 1427°C), and the crystallization temperature is too high, the fiber Molding will be more difficult
[0005] The tensile modulus of the glass fibers disclosed in the above patents has been greatly improved, but most of them still cannot meet the needs of the high modulus field; a few glass fibers with higher modulus have high melting temperature and are prone to crystallization. , Difficulty in molding and other problems, it is impossible to realize industrial promotion

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0066] Select the raw material of glass fiber according to the ratio of each component shown in Table 1, transport the weighed raw material to the mixing tank, and transport the raw material to the pool kiln silo after being mixed uniformly in the mixing tank;

[0067] Then put the mixed material in the tank kiln into the tank kiln, melt the mixed material in the tank kiln at 1450~1600°C to obtain molten glass; clarify and homogenize the obtained molten glass to obtain stable and high The high-quality molten glass is transported to the wire drawing operation channel;

[0068] After the glass liquid in the wire drawing operation channel is cooled to 1330°C, it flows out through the platinum bushing, and is quickly drawn by the wire drawing machine to form glass filaments with a diameter of 3 μm to 25 μm;

[0069] The obtained glass filaments are subjected to spray cooling and sizing agent coating to obtain glass filament fibers.

[0070] In the present invention, the obtained ...

Embodiment 2~9

[0072] According to the preparation process described in Example 1, the raw materials of each example listed in Table 1 were prepared to obtain glass fibers. The difference is that in Examples 2 to 9, the cooling temperature of the molten glass in the working channel is controlled according to their respective molding temperatures.

[0073] In the present invention, the obtained glass fibers are tested for performance, and the results are shown in Table 1. Table 1 shows the composition of the raw materials in the examples and comparative examples of the present invention and the performance test results of the obtained glass fibers.

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Abstract

The invention provides a glass fiber which comprises 62-66 wt% of SiO2, 18-21 wt% of Al2O3, 0.5-5 wt% of CaO, 8-12 wt% of MgO, 0.5-2 wt% of Li2O, 0.4-3 wt% of TiO2, 0.1-0.6 wt% of Fe2O3 and 0.1-0.8 wt% of Na2O and K2O. The total mass content of the Na2O, K2O and Li2O is 0.5-3 wt%. Therefore, the glass fiber provided by the invention has low forming temperature and upper limit crystallization temperature on the premise of having high tensile modulus, so that the glass fiber is applicable to large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of inorganic non-metallic materials, in particular to a glass fiber. Background technique [0002] Glass fiber is an inorganic non-metallic material with excellent performance. It has many advantages such as good electrical insulation, strong heat resistance, good corrosion resistance, and high mechanical strength. It is currently the most widely used reinforcing substrate in resin-based composite materials. , the usage ratio exceeds 90%. [0003] With the continuous expansion of the application field of glass fiber composite materials, the performance requirements of glass fiber in industry are also increasing, especially in the fields of military industry, automobile, aerospace, shipbuilding, and large-size wind power blades. There are more stringent requirements for mechanical properties, mechanical strength, fatigue resistance, etc. Therefore, for glass fibers used as reinforcing substrates, the pursuit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/02
CPCC03C13/00C03C3/087C03C3/095
Inventor 韩利雄姚远杨国云刘海深张聪
Owner CHONGQING POLYCOMP INT
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