High modulus glass fiber

A technology of glass fiber and high modulus, which is applied in the field of glass fiber and high modulus glass fiber, can solve the problems of high processing cost that cannot realize industrialization, close molding temperature and liquidus temperature, high fiber molding temperature, etc., to ensure mechanical Effects of performance and chemical stability, reduction of glass density, improvement of tensile modulus

Inactive Publication Date: 2015-12-23
CHONGQING POLYCOMP INT
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  • Abstract
  • Description
  • Claims
  • Application Information

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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), the energy consumption is large, and the liquidus temperature is too high. Too high, liquidus temperature and wire drawing forming temperature are close to make fiber forming more difficult
[0011] Generally speaking, although people have made a lot of efforts and made great progress in improving the tensile modulus of glass fibers, there are still problems in the improvement of the tensile modulus of glass fibers due to the high fiber molding temperature and the high molding temperature. Due to the problem

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preparation example Construction

[0036] The present invention has no special restrictions on the preparation method of the glass fiber, and it is preferably produced by the tank kiln method. Specifically, it can be prepared according to the following method:

[0037] Mix all kinds of raw materials uniformly and put them into the kiln. After melting, clarification and homogenization, the glass liquid is obtained;

[0038] The glass fiber is obtained by cooling, flowing out and drawing the glass liquid.

[0039] The present invention first mixes various raw materials in a mixing tank, and after they are evenly mixed, they are transported to the kiln silo; then the kiln silo puts the mixed materials into the kiln, and melts them under the conditions of 1400-1650°C. Clarify and homogenize to obtain molten glass;

[0040] Cooling the glass liquid to 1250-1350°C, flowing out through the platinum drain plate, and drawing into a glass filament with a diameter of 3-25um under the traction of a wire drawing machine;

[0041] Sp...

Embodiment 1

[0045] Select SiO according to the parameters of Example 1 shown in Table 1. 2 , 61%; Al 2 O 3 , 16.8%; CaO, 9.5%; MgO, 12%; Na 2 O+K 2 O, 0.1% and Fe 2 O 3 , 0.6% as glass raw material, and calculate the amount of each raw material;

[0046] Then weigh the required raw materials in proportion and transport them all to the mixing tank. After the mixing is uniform, the mixture is transported to the kiln silo;

[0047] Put the mixture in the silo of the tank kiln into the tank kiln. In the tank kiln, the mixture is gradually melted into molten glass at a high temperature above 1400℃. After clarification and homogenization, the stable and high-quality molten glass enters the wire drawing operation channel ;

[0048] After cooling the glass liquid in the wire drawing channel to a suitable temperature, it flows out through the platinum drain plate and is quickly drawn by the wire drawing machine into a glass wire with a diameter of 3-25μm;

[0049] The glass filaments are spray-cooled and ...

Embodiment 2

[0051] Select SiO according to the formula in Example 2 in Table 1 2 , 59.0%; Al 2 O 3 , 16.0%; CaO, 9.2%; MgO, 9.5%; BeO, 5.0%; TiO 2 , 1.0% and Na 2 O+K 2 O was used as the glass raw material, and the high modulus glass fiber was prepared according to the method in Example 1.

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Abstract

The invention provides a high modulus glass fiber, which belongs to the technical field of an inorganic nonmetal material. The high modulus glass fiber comprises the following components by weight percent: 59 to 61 percent of SiO2, 16 to 18 percent of Al2O3, 9.5 to 10.9 percent of CaO, 9.5 to 12 percent of MgO, 0 to 5 percent of BeO, 0 to 1.2 percent of TiO2, 0 to 0.6 percent of Fe2O3, 0.1 to 0.8 percent of Na2O+K2O, and also comprises less than or equal to 2 percent of one or two of ZrO2 and ZnO, so that the stretching modulus of the glass fiber is further improved. By adopting the high modulus glass fiber, an optimum proportioning ratio of the high modulus glass fiber is found, so that the mechanical performance of the glass fiber is greatly improved, under the condition of not increasing the fusion difficulty, the production cost is reduced, the product performance is improved, and the market prospect is promising.

Description

Technical field [0001] The invention relates to a glass fiber, in particular to a high modulus glass fiber, and belongs to the technical field of inorganic non-metallic materials. Background technique [0002] Glass fiber is an inorganic non-metallic material with excellent performance. It has many advantages such as high specific strength, high specific modulus, good electrical insulation, strong heat resistance, and good corrosion resistance. It is currently used in resin-based composite materials. The most widely used reinforced substrate, the use ratio exceeds 90%. [0003] With the continuous expansion of the application fields of glass fiber composite materials, the performance requirements of glass fibers in the industry are also increasing, especially in the fields of wind power, aerospace, shipbuilding, military industry, and automobiles. These fields have Stability, strength, etc. have stricter requirements. Therefore, for glass fiber as a reinforcing substrate, it is ne...

Claims

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Application Information

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IPC IPC(8): C03C13/00C03C13/02
Inventor 张聪姚远杨国云刘海深赵士斌罗成云
Owner CHONGQING POLYCOMP INT
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