Glass fiber

A glass fiber, 58wt% technology, applied in the field of inorganic non-metallic materials, can solve the problems of poor glass fiber molding performance, increased raw material cost, pollution, etc.

Inactive Publication Date: 2017-08-18
CHONGQING POLYCOMP INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Ordinary E-glass fiber is generally added with about 6wt% B 2 o 3 and around 0.5wt% of F 2 , which not only increases the cost of raw materials, but also F 2 There is still some pollution to the environment, but if the boron and fluorine content in the glass fiber is reduced, the formability of the glass fiber will deteriorate

Method used

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preparation example Construction

[0031] The present invention does not have special limitation to the preparation method of described glass fiber, is preferably produced by pool kiln method, specifically can be prepared according to the following method:

[0032] Mix all kinds of raw materials evenly and put them into the tank kiln. After melting, clarification and homogenization, the glass liquid is obtained;

[0033] The glass fiber is obtained after the glass liquid is cooled, flowed out and drawn.

[0034] In the present invention, various raw materials are firstly mixed in a mixing tank, and after being uniformly mixed, they are transported to the tank kiln hopper; then the tank kiln hopper puts the mixed material into the tank kiln for melting, clarification and homogenization to obtain molten glass ; The melting temperature is preferably 1250-1450°C;

[0035] The glass liquid is cooled, flows out through the platinum bushing plate, and is drawn into a glass filament with a diameter of drawing under th...

Embodiment 1～6

[0040] Select glass raw materials according to the glass fiber composition shown in Table 1, and calculate the consumption of each raw material:

[0041] Table 1 embodiment glass fiber formula table

[0042] composition Example 1 Example 2 Example 3 Example 4 Example 5 SiO 2

52 53.2 55.4 56.6 57.8 al 2 o 3

13 14 15 16 17 B 2 o 3

4 3.2 2.4 1.6 0.5 CaO 19.5 19.8 19.4 19.8 19.9 MgO 9 7.3 5.8 4 2.2 TiO 2

0.7 0.7 0.7 0.7 0.7 Na 2 O+K 2 o

0.75 0.75 0.75 0.75 0.75 Fe 2 o 3

0.55 0.55 0.55 0.55 0.55 ZrO 2

0.5 ZnO 0.5 0.5 0.1

[0043] Then weigh the required raw materials in proportion, and transport them all to the mixing tank. After mixing evenly, transport the mixture to the tank kiln silo;

[0044] Put the mixed material in the kiln silo into the kiln. In the kiln, the mixed material is gradually melted into molten glass...

Embodiment 7

[0056] Performance tests were carried out on the above-mentioned glass fibers, and the results are shown in Table 3. Table 3 shows the formulations and properties of the glass fibers provided in the examples and comparative examples of the present invention. Among them, T logη＝3 is the fiber forming temperature, which is detected by BROOKFIELD high temperature viscometer; T 液 is the upper limit of glass crystallization temperature, which is measured by Orton Model gradient furnace; ΔT is the difference between the fiber forming temperature and the upper limit of glass crystallization temperature.

[0057] The glass fiber performance data sheet that table 3 embodiment and comparative examples provide

[0058]

[0059] It can be seen from Table 3 that, compared with the comparative examples, the glass fibers provided by the examples of the present invention have better formability, the forming temperature does not exceed 1210°C, and the crystallization upper limit temperatur...

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Abstract

The invention relates to the technical field of inorganic non-metallic materials, in particular to a glass fiber. The glass fiber comprises the following compositions of 52-59 wt% of SiO2, 13-18 wt% of Al2O3, 12-19.9 wt% of CaO, 0.5-9 wt% of MgO, 0.1-4 wt% of B2O3, 0.1-1.2 wt% of of TiO2, 0.1-0.8 wt% of Fe2O3 and 0.1-0.8 wt% of of Na2O and K2O in total. According to the glass fiber, the matching relation of all the compositions in the glass is accurately controlled so that the glass fiber can be ensured to have excellent formability, introduction of F2 is canceled, introduction of B2O3 is reduced, and the raw mineral material cost is greatly reduced. The experiment result shows the forming temperature of the glass fiber is not larger than 1,210 DEG C, and the devitrification ceiling temperature is lower than 1,100 DEG C.

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 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 reinforcing substrate, the proportion of use exceeds 90%. [0003] The main components of glass fiber are silica, alumina, calcium oxide, boron oxide, magnesium oxide, sodium oxide, etc. According to the alkali content in the glass, it can be divided into alkali-free glass fiber (sodium oxide 0% ~ 2%, aluminoborosilicate glass), medium-alkali glass fiber (8% to 12% sodium oxide, boron-containing or boron-free soda-lime silicate glass) and high-alkali glass fiber (more than 13% sodium oxide, which is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/00
CPCC03C13/00
Inventor 张聪李红宾庾波周斌张海波杨国云陈德全宫白江
Owner CHONGQING POLYCOMP INT
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