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Acid-resistant glass fiber and fabric prepared by glass fiber

A glass fiber and acid-resistant technology, which is applied in the field of acid-resistant glass fiber and fabrics prepared therefrom, can solve the problems of unsatisfactory filtration of flue gas, requirement of flue gas emission rate, and increased energy consumption, etc. High temperature resistance and corrosion resistance, ensuring post-processing processability and good high temperature resistance

Active Publication Date: 2013-12-25
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently widely used PPS filter material, PTFE filter material, chemical fiber filter material such as aramid fiber or ordinary non-alkali glass fiber coated (PTFE) filter material, the main problems of these filter materials are: 1) The exhaust gas emitted by the above industries is For high-temperature gas, chemical fiber and ordinary non-alkali fiber will be carbonized or pulverized when the temperature is higher than 250 ° C, the service life is short, and the effect of filtering flue gas cannot be achieved in the end. Therefore, many industries need to add cooling before filtering. equipment, energy consumption becomes larger, and efficiency becomes lower; 2) Since industrial waste gas contains acid gases such as sulfide and nitrogen oxides, it is very corrosive to ordinary alkali-free fibers, and the filter bag will leak in a short period of time and lose Filtration effect; 3) Most of the existing glass fiber reinforced material weaving processes for filter cloth use a single twisted yarn as the warp and weft yarn of the fabric. Filtration from the gaps and holes of the thread requires high air permeability of the fabric, and also requires the emission rate of the smoke, which reduces the filtration efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Acid-resistant glass fiber and fabric prepared by glass fiber
  • Acid-resistant glass fiber and fabric prepared by glass fiber
  • Acid-resistant glass fiber and fabric prepared by glass fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) The raw material components of glass fiber are listed in Table 1. The fiber is drawn by a general-purpose crucible or pool kiln, and the glass fiber is drawn into a 37.5tex raw silk, and the raw silk is coated with a textile-type compound emulsion (brand TS -1101, produced by the Special Fiber Division of Sinoma Science and Technology), and then made into 150tex warp yarns through the process of unwinding and twisting, and warping the finished warp yarns, and drawing them into warp yarn heads;

[0027] 2) Use the same composition of glass fiber to draw 37.5tex raw silk, the raw silk is coated with the same proportion of textile-type compound emulsion, and the raw silk is decomposed to make 75tex unidirectional twisted yarn; drawn with the same composition of glass fiber Make the 31.5tex raw silk, the raw silk is coated with bulking textile type sizing agent, and make 126tex yarn through de-solution and twisting process, and then go through bulking treatment; Plying a...

Embodiment 2

[0034] 1) The raw material components of the glass fiber are listed in Table 3, and the fiber is drawn by using a general-purpose crucible or a pool kiln, and the glass fiber is drawn into a 12.5tex precursor, and the precursor is a textile-type compound emulsion (same as Example 1) Coating treatment, and then through the unwinding and twisting process to make 150tex warp yarns; the warp yarns made are warped and harnessed to make warp yarn heads;

[0035] 2) Use the same composition of glass fiber to draw 12.5tex raw silk, and the raw silk is coated with the same proportion of textile-type compound emulsion, and the raw silk is decomposed to make 75tex unidirectional twisted yarn; drawn with the same composition of glass fiber 12.5tex raw silk is made, the raw silk is coated with bulking textile sizing agent, and 125tex yarn is made through the unwinding and twisting process, and then bulked; Plying and twisting into weft yarn; the ratio of the bulking textile sizing agent us...

Embodiment 3

[0042] 1) The raw material components of the glass fiber are listed in Table 5, and the fiber is drawn by using a general-purpose crucible or a pool kiln, and the glass fiber is drawn into a 37.5tex precursor, and the precursor is a textile-type compound emulsion (same as Example 1) Coating treatment, after the process of retreating and twisting to make 150tex warp yarn, warp the finished warp yarn, and draw it into a warp yarn head;

[0043] 2) Use the same composition of glass fiber to draw 37.5tex raw silk, the raw silk is coated with the same proportion of textile-type compound emulsion, and the raw silk is decomposed to make 75tex unidirectional twisted yarn; drawn with the same composition of glass fiber 12.5tex raw silk is made, the raw silk is coated with bulking textile sizing agent, and 125tex yarn is made through the unwinding and twisting process, and then bulked; Ply and twist into weft yarn; see Table 6 for the proportion of bulking textile sizing used;

[0044]...

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Abstract

The invention discloses an acid-resistant glass fiber and fabric prepared by the glass fiber. The acid-resistant glass fiber comprises the following components by mass percentage: 59-65% of SiO2, 15-20% of Al2O3, 5-10% of MgO, 4-16% of CaO, 0.1-1% of R2O, 0.1-1% of Fe2O3, and 1-2.5% of TiO2, wherein R2O is a mixture of Na2O, Li2O and K2O at any matching ratio. The obtained fabric has the characteristics of high strength, good high-temperature resistance, high corrosion resistance, good air permeability and the like, and facilitates flue gas filtering; a weaving composite emulsion and a puffed weaving impregnating compound which are used by wire drawing can be removed easily; and the aftertreatment technology capability of the fabric is ensured.

Description

technical field [0001] The invention relates to an acid-resistant glass fiber and a fabric prepared therefrom, belonging to the field of high-performance glass fiber products. Background technique [0002] With the continuous development of industrial technology, the domestic demand for corrosion-resistant materials has been expanding in recent years, especially in the dust and flue gas filtration fields such as coal power, cement, and steel, where the exhaust gas contains a large amount of sulfur and nitrogen oxides. high temperature acidic substances. Currently widely used PPS filter material, PTFE filter material, chemical fiber filter material such as aramid fiber or ordinary non-alkali glass fiber coated (PTFE) filter material, the main problems of these filter materials are: 1) The exhaust gas emitted by the above industries is For high-temperature gas, chemical fiber and ordinary non-alkali fiber will be carbonized or pulverized when the temperature is higher than 25...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/02C03C25/32
Inventor 刘劲松祖群宋伟黄松林韩进华张焱于水吴中华
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD
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