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Method for preparing light high-strength stone paper

A high-strength, stone paper technology, applied in the field of stone paper preparation, can solve the problems of poor compatibility between inorganic fillers and organic polymers, limit the application range of stone paper, and poor mechanical properties of stone paper, so as to improve compatibility, combine Increased strength and improved adsorption activity

Inactive Publication Date: 2018-05-04
常州市宇科不绣钢有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention is that the common stone paper is heavy in weight, which limits the scope of application of stone paper, and the compatibility between inorganic fillers and organic polymers in stone paper raw materials is poor, resulting in poor mechanical properties of stone paper and flame retardancy. Lower defects, providing a method for the preparation of light-weight high-strength stone paper

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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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026]Weigh corn stalks and crush them for 40 minutes to obtain crushed straws, mix the crushed straws with 30% sodium hydroxide solution and absolute ethanol at a mass ratio of 1:5:5, heat and boil for 1 hour, filter and separate to obtain filter residues , immediately spray the frozen filter residue with liquid nitrogen for 2 minutes, then put the frozen filter residue into a ball mill and mill it for 1 hour, pass through a 100-mesh sieve, collect the sieved powder to obtain self-made polyhydroxy fiber bundles; weigh 30g magnesium nitrate, 28g aluminum nitrate, 20g of zinc nitrate was dissolved in 450mL deionized water to obtain a mixed solution, and the mixed solution was mixed with 30% ammonia and potassium carbonate in a mass ratio of 10:1:1 to obtain a pre-reaction solution; the pre-reaction solution was loaded into a high-pressure In the hydrothermal kettle, add polyhydroxyl fiber bundles of 10% of the quality of the pre-reaction solution, potassium thiocyanate of 1% of ...

example 2

[0028] Weigh the corn stalks and crush them for 45 minutes to obtain the crushed straws, mix the crushed straws with 30% sodium hydroxide solution and absolute ethanol at a mass ratio of 1:5:5, heat and boil for 1 hour, filter and separate to obtain the filter residue , immediately spray the frozen filter residue with liquid nitrogen for 2 minutes, then put the frozen filter residue into a ball mill for ball milling for 1 hour, pass through a 100-mesh sieve, collect the sieved powder to obtain self-made polyhydroxyl fiber bundles; weigh 35g magnesium nitrate, 29g aluminum nitrate, 23g of zinc nitrate was dissolved in 500mL deionized water to obtain a mixed solution, and the mixed solution was mixed with 30% ammonia and potassium carbonate in a mass ratio of 10:1:1 to obtain a pre-reaction solution; the pre-reaction solution was loaded into a high-pressure In the hydrothermal kettle, add polyhydroxy fiber bundles with 10% of the quality of the pre-reaction solution, potassium th...

example 3

[0030] Weigh corn stalks and crush them for 50 minutes to obtain crushed straws, mix the crushed straws with 30% sodium hydroxide solution and absolute ethanol at a mass ratio of 1:5:5, heat and boil for 2 hours, filter and separate to obtain filter residues , immediately spray the frozen filter residue with liquid nitrogen for 3 minutes, then put the frozen filter residue into a ball mill for ball milling for 2 hours, pass through a 100-mesh sieve, collect the sieved powder to obtain self-made polyhydroxy fiber bundles; weigh 40g magnesium nitrate, 30g aluminum nitrate, 25g of zinc nitrate was dissolved in 550mL deionized water to obtain a mixed solution, and the mixed solution was mixed with 30% ammonia and potassium carbonate in a mass ratio of 10:1:1 to obtain a pre-reaction solution; the pre-reaction solution was loaded into a high-pressure In the hydrothermal kettle, add polyhydroxyl fiber bundles of 10% of the quality of the pre-reaction solution, potassium thiocyanate o...

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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Abstract

The invention relates to the technical field of stone paper making and in particular to a method for preparing light high-strength stone paper. The method comprises the following steps: firstly, boiling crushed straw with alkali and absolute ethyl alcohol so as to improve fiber plasticity and implement hydroxylation modification on a fiber; secondly, preparing polyhydroxy fiber bundles through frost wedging action together with ball milling; by taking the polyhydroxy fiber bundles as a deposition core mold plate, generating nano-grade hydrotalcite granules by using a hydrothermal method, enabling the nano-grade hydrotalcite granules to adhere to the surfaces of the polyhydroxy fiber bundles, and adding potassium rhodanate and ammonium oxalate in the hydrothermal reaction, wherein the ammonium oxalate is firstly heated and decomposed into oxalic acid and ammonia gas, under the action of the potassium rhodanate, metal ions in hydrotalcite leave original crystal lattice positions and enter an oxalic acid organic phase, then cavities are formed in the hydrotalcite crystal lattice, and the adsorption activity of the hydrotalcite is improved; finally performing calcining so as to removethe polyhydroxy fiber bundle core and hollow nano hydrotalcite with high adsorption activity, and finally commixing the hollow nano hydrotalcite with polyethylene, thereby obtaining the light high-strength stone paper.

Description

technical field [0001] The invention relates to the technical field of stone paper preparation, in particular to a preparation method of light-weight high-strength stone paper. Background technique [0002] With the continuous enhancement of global low-carbon environmental protection awareness, people are more and more committed to the research and development of green environmental protection materials. As a new type of environmentally friendly synthetic paper, stone paper has gradually received attention and development at home and abroad. The main raw materials of stone paper are a large amount of stone powder, a small amount of resin and some additives. These main raw materials can be made into stone paper through mixing, modification, granulation, extrusion, stretching and other processes. Stone paper has excellent properties such as high tensile strength, good folding and breaking resistance, high tear strength, outstanding water resistance, oil resistance, and chemica...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K9/04C08K3/26
CPCC08K3/26C08K9/04C08K2201/011C08L23/06
Inventor 郑守生林茂兰
Owner 常州市宇科不绣钢有限公司
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