Flyash fiber pulp and papermaking method using same as raw material

A technology for fly ash fiber and pulp is applied in the field of manufacturing paper materials to achieve the effects of increasing the added value of the application, reducing the cost of papermaking, and saving the consumption of logs

Inactive Publication Date: 2005-02-16
EAST CHINA UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no literature report on how to use fly ash fiber to prepare pulp and paper, so the research and development of this topic will be of great significance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Use 20 parts (weight) of fly ash fibers with a diameter of 3 to 5 μm and a length of 15 to 45 cm, and 80 parts of water. After reconciliation, the material enters a slag remover with a 5-layer net. After the slag is removed and filtered, the fibers are cut into Short fibers with a length of 3 to 5 cm. Subsequently, it is sent into a large amount of deflagging machine for decomposing; then, add 4 parts of 3% acetic acid aqueous solution, 1 part of 1% hydrochloric acid aqueous solution, 2 parts of calcium alkylate, 2 parts of sodium polyphosphate, 8 parts of 5% polyvinyl alcohol aqueous solution, 5 parts 5 parts of % modified starch aqueous solution, the material is transported into a pressure vessel, the pressure in the vessel is controlled to 0.3MPa, the temperature is controlled to 90-95°C, and the mixture is stirred for 60 minutes to obtain a slurry with evenly dispersed fly ash fibers. In terms of dry pulp, the yield is 90%. Then, in the fly ash fiber slurry, add 20...

Embodiment 2

[0059] Use 20 parts (weight) of fly ash fibers with a diameter of 3 to 5 μm and a length of 15 to 45 cm, and 80 parts of water. After reconciliation, the material enters a slag remover with a 5-layer net. After the slag is removed and filtered, the fibers are cut into Short fibers with a length of 3 to 5 cm. Subsequently, it is sent to a large amount of deflagging machine for deflaking; then, add 2 parts of 3% acetic acid aqueous solution, 1 part of 1% sulfuric acid aqueous solution, 2 parts of magnesium alkylate, 2 parts of zinc alkylate, 2 parts of 5% polyacrylamide aqueous solution, 2 parts of 10% polyvinyl alcohol aqueous solution, the material is transported into a pressure vessel, the pressure in the vessel is controlled to 0.25MPa, the temperature is controlled to 90-95°C, and the mixture is stirred for 50 minutes to obtain a slurry with evenly dispersed fly ash fibers. In terms of dry pulp, the yield is 91%. Then add 80 parts of pre-prepared wood fiber pulp to the fly...

Embodiment 3

[0073] Use 18 parts (weight) of fly ash fibers with a diameter of 3 to 5 μm and a length of 15 to 45 cm, and 82 parts of water. After reconciliation, the material enters a slag remover with a 5-layer net. After the slag is removed and filtered, the fiber is cut into Short fibers with a length of 3 to 5 cm. Then, send it into a large amount of deflagging machine; then, add 3 parts of 3% sodium polyphosphate aqueous solution, 2 parts of 1% sodium lauryl sulfate, 1 part of barium alkanoate, 2 parts of sodium alginate, 8% oxidation 1 part of polyethylene aqueous solution, 2 parts of 5% emulsified methyl silicone oil, the materials are transported into a pressure vessel, the pressure in the vessel is controlled to 0.4MPa, the temperature is controlled to 60-65°C, and stirred for 70 minutes to obtain a slurry with uniform dispersion of fly ash fibers . In terms of dry pulp, the yield is 92%. Then, add 12 parts of pre-prepared wood fiber pulp to the fly ash fiber slurry, refine the...

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Abstract

This invention discloses fly ash fiber pulp and its use in paper making including the following components and weight percentage: emulsifier 1-10%, dispersant 1-8%, surface modifier 1-10%, powder-coal fiber 20-80%, organic fiber 20-80% and reset for water said pulp is conveyed onto a paper-making machine by conventional method to turn them into paper, which physical performance reaches to the same level as plant fiber paper and water resistance, corrosion prevention and fire prevention are tested better than plant fiber paper by related national standards.

Description

technical field [0001] The invention relates to a pulp, in particular to a fly ash fiber pulp and a method for manufacturing paper materials using the fly ash fiber pulp as a raw material. Background technique [0002] Fly ash fiber is produced by spinning the ash and slag produced after burning coal or coal powder under high temperature melting. The main component of this inorganic fiber is SiO 2 , Al 2 o 3 , containing a small amount of Fe 2 o 3 , CaO, MgO, TiO 2 etc., can replace part of the glass fiber to make various industrial materials. The rational use of fly ash fiber is a subject of great concern. [0003] Among them, the very meaningful and high value-added utilization is applied to the production of special paper products from pulp. Using fly ash fiber as raw material to prepare paper pulp can partially replace natural plant pulp, with low production cost, no water source pollution and environmental pollution. It can not only solve the problem of fly ash ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H13/38D21H21/14
Inventor 陈建定郑小鹏陈忠荣
Owner EAST CHINA UNIV OF SCI & TECH
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