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Biological polymer oil-proof paper and preparation method thereof

A biopolymer and oil-proof paper technology, applied in papermaking, paper coating, surface covering paper, etc., can solve the problems of high viscosity of chitosan and sodium alginate, high viscosity of oil-proof agent, high cost of oil-proof paper, etc.

Inactive Publication Date: 2017-01-04
惠州市荣丰新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent with the publication number CN102242533A provides a method for preparing a biopolymer-coated oil-proof wrapping paper. The patent uses chitosan, sodium alginate, and acetic acid as the main raw materials to prepare the oil-proof agent, and the price of chitosan Expensive, causing the cost of the oil-proof paper is higher, and the viscosity of chitosan and sodium alginate is high, resulting in the viscosity of the prepared oil-proof agent is too high, which is not conducive to actual production operations

Method used

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  • Biological polymer oil-proof paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Preparation of anti-oil agent: sequentially add sodium alginate, soybean protein isolate and glycerin into a container filled with distilled water and stir evenly, then add 1mol / L sodium hydroxide or hydrochloric acid solution to adjust the pH value to 6, and finally place the container Stir magnetically in a constant temperature water bath at 50°C for 2.5 hours to prepare the oil repellant. In the formula of the anti-oil agent, the mass percentage of sodium alginate is controlled at 1%, the mass percentage of soybean protein isolate is controlled at 1%, and the mass percentage of glycerin is controlled at 2%.

[0037] Filtration: filter the prepared oil repellant to remove undissolved impurities.

[0038] Vacuum degassing: Carry out vacuum degassing on the prepared oil repellent until there are basically no bubbles on the surface of the oil repellent, and the vacuum degree is 0.09MPa-0.1MPa.

[0039] Coating: choose 100g / m 2 -200g / m 2 The cardboard paper, the oil re...

Embodiment 2

[0044]Preparation of anti-oil agent: sequentially add sodium alginate, soybean protein isolate and glycerin into a container filled with distilled water and stir evenly, then use 1mol / L sodium hydroxide or hydrochloric acid solution to adjust the pH value to 8, and finally place the container Stir magnetically in a constant temperature water bath at 60°C for 1.5 hours to prepare the oil repellant. In the formula of the anti-oil agent, the mass percentage of sodium alginate is controlled at 2%, the mass percentage of soybean protein isolate is controlled at 5%, and the mass percentage of glycerin is controlled at 3%.

[0045] Filtration: filter the prepared oil repellant to remove undissolved impurities.

[0046] Vacuum degassing: Carry out vacuum degassing on the prepared oil repellent until there are basically no bubbles on the surface of the oil repellent, and the vacuum degree is 0.09MPa-0.1MPa.

[0047] Coating: choose 100g / m 2 -200g / m 2 The cardboard paper, the oil rep...

Embodiment 3

[0052] Preparation of anti-oil agent: sequentially add sodium alginate, soybean protein isolate and glycerin into a container filled with distilled water and stir evenly, then use 1mol / L sodium hydroxide or hydrochloric acid solution to adjust the pH value to 11, and finally place the container Stir magnetically in a constant temperature water bath at 90°C for 0.5 hour to prepare the oil repellant. In the formula of the anti-oil agent, the mass percentage of sodium alginate is controlled at 3%, the mass percentage of soybean protein isolate is controlled at 6%, and the mass percentage of glycerin is controlled at 4%.

[0053] Filtration: filter the prepared oil repellant to remove undissolved impurities.

[0054] Vacuum degassing: Carry out vacuum degassing on the prepared oil repellent until there are basically no bubbles on the surface of the oil repellent, and the vacuum degree is 0.09MPa-0.1MPa.

[0055] Coating: choose 100g / m 2 -200g / m 2 The cardboard paper, the oil re...

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Abstract

The invention discloses biological polymer oil-proof paper and a preparation method thereof. The biological polymer oil-proof paper comprises a paper layer and a oil-proof layer, wherein an oil-proof agent on the oil-proof layer comprises sodium alginate, soybean protein isolate and glycerol; the oil-proof agent is prepared and the oil-proof agent is coated on the paper layer after being filtered and degassed in vacuum; and after drying and constant-temperature and constant-humidity treatment are carried out, the biological polymer oil-proof paper disclosed by the invention is obtained. The preparation method of the biological polymer oil-proof paper biological polymer oil-proof paper is simple and feasible, is low in cost, is environment-friendly, has no toxin to human bodies and has an excellent oil-proof effect.

Description

technical field [0001] The application belongs to the field of oil-proof paper, in particular, relates to a biopolymer oil-proof paper and a preparation method thereof. Background technique [0002] In the field of oil-proof paper preparation technology, the method of improving the beating degree of pulp was first adopted. However, with the increase of beating degree, the tear strength and burst strength of paper will decrease. Not only that, the increase in beating degree will also lead to a sharp increase in power consumption, and make the pulp's water filtration and papermaking performance worse, and it is easy to have dehydration difficulties in the wire and press parts, resulting in poor surface smoothness after drying, resulting in Paper sickness. Therefore, it is not an economical and reasonable method to prepare greaseproof paper only by increasing the degree of beating. [0003] Greaseproof paper can be produced by compounding a continuous and dense synthetic pol...

Claims

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Application Information

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IPC IPC(8): D21H19/00D21H19/10D21H27/18
CPCD21H19/00D21H19/10D21H27/18
Inventor 卢立新潘嘹
Owner 惠州市荣丰新材料股份有限公司
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