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Water-based halogen-free flame-retardant paper and preparation method thereof

A flame retardant paper, water-based technology, applied in the direction of paper, defoamer, etc., can solve the problems of reducing the flame retardant effect, adding a large amount of flame retardant, returning to halogen, etc., to improve light stability and thermal stability, Excellent flame retardant properties and the effect of reducing dosage

Inactive Publication Date: 2012-08-01
TIANJIN UNIV OF COMMERCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Phenomena such as large amount of flame retardant added, halogen returning, moisture absorption, etc.
[0005] 2. The use of toxic flame retardants, such as bromine, phosphate and other flame retardants, is not conducive to environmental protection or even endangers health
[0006] 3. The flame retardant is not stable enough, and it will react under the action of light, heat, etc., thereby reducing the flame retardant effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Mix 0.3 kg of water-soluble polyvinyl alcohol 1799 and 9.7 kg of water at 90°C, stir for 30 minutes to obtain a polyvinyl alcohol solution with a concentration of 3%, and then add 0.1 kg of carboxymethyl cellulose to make carboxymethyl The concentration of the fiber is 1%, and the stirring is continued until it is completely dissolved, and the resulting mixed solution is used as glue.

[0029] (2) Adopt magnesium hydroxide 0.5kg and antimony trioxide 1.0kg (weight ratio is 1: 2) compound as flame retardant, join in the glue solution prepared in step (1), add 0.1% (relative to poly The weight percent of vinyl alcohol and carboxymethyl cellulose total amount) 4g antifoaming agent tributyl phosphate, stir evenly, composite flame retardant accounts for 15% of glue liquid in the gained flame retardant liquid.

[0030] (3) Coat the flame retardant solution obtained in step (2) on the base paper (quantitative: 70g / m 2 ), the flame retardant single-sided paper coating amou...

Embodiment 2

[0032] (1) Mix 0.3 kg of water-soluble polyvinyl alcohol 1799 and 9.7 kg of water at 90°C, stir for 30 minutes to obtain a polyvinyl alcohol solution with a concentration of 3%, and then add 0.1 kg of carboxymethyl cellulose to make carboxymethyl The concentration of the fiber is 1%, and the stirring is continued until it is completely dissolved, and the resulting mixed solution is used as glue.

[0033] (2) Adopt aluminum hydroxide 1.0kg and antimony trioxide 0.5kg (weight ratio is 2: 1) compound as flame retardant, join in the glue liquid prepared in step (1), add 0.1% (relative to poly The weight percentage of vinyl alcohol and carboxymethyl cellulose total amount) 4g trioctyl phosphate, stir evenly, and composite flame retardant accounts for 15% of glue liquid in the gained flame retardant liquid.

[0034] (3) Coat the flame retardant solution on the base paper on the coating machine (quantitative: 70g / m 2 ), the flame retardant single-sided paper coating amount is 30g / m ...

Embodiment 3

[0036] (1) Mix 0.3 kg of water-soluble polyvinyl alcohol 1799 and 9.7 kg of water at 90°C, stir for 30 minutes to obtain a polyvinyl alcohol solution with a concentration of 3%, and then add 0.1 kg of carboxymethyl cellulose to make carboxymethyl The concentration of the fiber is 1%, and the stirring is continued until it is completely dissolved, and the resulting mixed solution is used as glue.

[0037] (2) adopt antimony trioxide 1.5kg as flame retardant, join in the glue solution that step (1) prepares, add 0.1% (with respect to the weight percentage of polyvinyl alcohol and carboxymethyl cellulose total amount) 4g Ethyl hexanol, stirred evenly, the composite flame retardant in the obtained flame retardant solution accounts for 15% of the glue solution.

[0038] (3) Coat the flame retardant solution on the base paper on the coating machine (quantitative: 80g / m 2 ), the flame retardant single-sided paper coating amount is 16g / m 2 , and then dried on the machine at 90°C, co...

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PUM

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Abstract

The invention discloses water-based halogen-free flame-retardant paper and a preparation method thereof, aiming to provide a non-toxic and pollution-free water-based halogen-free flame-retardant paper with no influence on the environment caused by combustion products and good flame retardant property and a preparation method thereof. A flame-retardant layer is coated on the surface of the raw paper of the flame-retardant paper, the flame-retardant layer is obtained by drying flame-retardant solution, the flame-retardant solution is composed of flame retardant, glue solution and defoaming agent, the flame retardant is composite flame retardant compounded from two of magnesium hydroxide, aluminium hydroxide, antimonous oxide and micron-sized or nanoscale hydrotalcite or antimonous oxide is used as the flame-retardant layer, the glue solution is mixed by polyvinyl alcohol and carboxymethylcellulose, single-face paper coating weight of the flame retardant is 16-30g / m<2>, and the defoaming agent accounts for 0.1wt% of the total weight of the polyvinyl alcohol and carboxymethylcellulose. The flame-retardant paper disclosed by the invention takes mixed solution of water-based polyvinyl alcohol and carboxymethylcellulose as the glue solution, and halogen-free flame retardant is added, thus the flame-retardant paper is non-toxic and environmentally friendly; meanwhile, the combustion product produces no influence on the environment, and the flame-retardant paper has good flame retardance.

Description

technical field [0001] The invention relates to a water-based halogen-free flame-retardant paper and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy, the application fields of paper materials are constantly expanding, and the market has higher and higher requirements for the variety and quality of paper. Decorative paper products, packaging of items requiring flame retardancy, etc. When the paper with flame-retardant properties burns in a fire, the flame retardant in the paper can suppress the combustion to the greatest extent. [0003] Compared with foreign countries, the research on flame-retardant paper in my country started relatively late. At present, the flame-retardant paper produced in my country mainly has the following deficiencies: [0004] 1. Phenomena such as large amount of flame retardant added, back to halogen, moisture absorption, etc. [0005] 2. The use of toxic flame retardants, such as bro...

Claims

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Application Information

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IPC IPC(8): D21H21/34D21H21/12
Inventor 郭玉花黄震滕立军
Owner TIANJIN UNIV OF COMMERCE
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