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Method for preparing ceramic paper

A kind of ceramic paper and paper technology, which is applied in the direction of paper, papermaking, textiles and papermaking, etc., can solve the problems of heavy environmental load, failure to meet the requirements of practical use, environmental impact, etc., and achieve the effect of good flame retardancy

Inactive Publication Date: 2007-10-03
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method reported in this document uses very expensive organometallic compounds, making it unsuitable for practical use, and organometallic compounds have certain toxicity, and its hydrolyzed products may have an impact on the environment
Therefore, the methods currently reported in the literature are costly and environmentally burdensome.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0006] Embodiment 1, at first paper is soaked in the polyvinyl alcohol polymer solution that mass percent concentration is 2%, after the quality of paper is increased by 30%, be placed in 75 ℃ and dry; Orthosilicate: anhydrous Ethanol: distilled water was mixed uniformly at a volume ratio of 10:20:8, and concentrated ammonia water was added dropwise under stirring conditions to adjust the pH value to 11, and then stirred under complete sealing for 8 hours to obtain silica sol; The impregnated paper is immersed in the silica sol solution for 5 minutes, and then dried at 65°C to increase the quality of the paper by 60%. After being immersed in the flame retardant sodium borate solution for 5 minutes, it can be dried in an oven at 100°C.

Embodiment 2

[0007] Embodiment 2, at first the paper is soaked in the polyvinyl alcohol macromolecule solution that the mass percent concentration is 8%, after the quality of paper is increased by 25%, be placed in 50 ℃ and dry; Orthosilicate: anhydrous Ethanol: distilled water is mixed evenly in a volume ratio of 10:20:5, and concentrated ammonia water is added dropwise under stirring conditions and the pH value is adjusted to 9, and then stirred for 2 hours under complete sealing to obtain silica sol; The impregnated paper was immersed in the silica sol solution for 3 minutes, and then dried at 55°C to increase the quality of the paper by 50; After being immersed in the sodium borate solution for 3 minutes, it can be dried in an oven at 50°C.

Embodiment 3

[0008] Embodiment 3, at first the paper is soaked in the polyvinyl alcohol macromolecule solution that the mass percentage concentration is 10%, after the quality of paper is increased by 30%, be placed in 80 ℃ and dry; Orthosilicate: anhydrous Ethanol: distilled water was mixed evenly in a volume ratio of 10:20:3, and concentrated ammonia water was added dropwise under stirring conditions to adjust the pH value to 10, and then stirred for 5 hours under complete sealing to obtain silica sol; The impregnated paper is immersed in the silica sol solution for 4 minutes, and then dried at 75°C to increase the quality of the paper by 20%; finally, the paper impregnated with the silica sol is impregnated again with a concentration of 2% by mass. After being immersed in the flame retardant sodium borate solution for 1 minute, it can be dried in an oven at 80°C.

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Abstract

This invention relates to a preparation method for ceramic paper, first of all, which immerses the paper in a PVA polymer solution and dries it, then immerses said paper in a silicon sol solution mixed by ethyl metasilicic acid, absolute alcohol and distilled water then again immerses the immersed paper by the sol solution into an inorganic fire retardant Na3Bo3 solution to be put in a baking oven under 50~100deg,C to get it. This invented ceramic paper can increase its tensible strength to 4-5times that of the original sample, its absorption rate is only about 40% and its property of fire retardant is good.

Description

technical field [0001] The invention relates to a preparation method of a novel material, in particular to a preparation method of ceramic paper. Background technique [0002] At present, there are no research reports on paper ceramicization in China. Internationally, only Japan has few similar reports. For example, the Japanese literature (Ceramic Data Book 2002 Vol.30192-194) reported the preparation method of surpassing paper, this method is to first penetrate the organometallic compound between the fibers of the paper, the organometallic compound and the active group on the paper fiber The cluster undergoes a condensation reaction, and then reacts with siloxane to form a super paper with greater strength. However, the method reported in this document uses very expensive organometallic compounds, making it unsuitable for practical use, and the organometallic compounds are toxic to a certain extent, and their hydrolyzed products may have an impact on the environment. Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H25/08D21H17/36D21H17/68D21H17/63
Inventor 王伟金志浩乔冠军
Owner XI AN JIAOTONG UNIV
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