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A kind of preparation method of waterborne polymer polyamide and its application in papermaking

A technology of water-based polymers and polyamides, applied in the field of polyamides, can solve problems such as high costs, difficulties in recycling broken paper, and restrictions on usage, and achieve the effects of wide application range, high product technology content, and simple production process

Active Publication Date: 2016-02-03
PINGHU JINGXING PACKING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two main problems: on the one hand, most of the wet strength agents added to the paper will have certain toxicity, and it is difficult to recycle broken paper, which will cause environmental protection problems and restrictions on usage; on the other hand, the cost problem, Commonly used wet strength agents such as MF resin and PAE are still widely used although their effects are limited due to their low prices, and it will take some time for new environmental-friendly and high-efficiency wet strength agents to be accepted by the market due to their high prices. It has been determined that the research direction of wet strength agents will be to pursue new types of wet strength agents with low cost, high performance and environmental friendliness.

Method used

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  • A kind of preparation method of waterborne polymer polyamide and its application in papermaking
  • A kind of preparation method of waterborne polymer polyamide and its application in papermaking
  • A kind of preparation method of waterborne polymer polyamide and its application in papermaking

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Experimental program
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Effect test

Embodiment 1

[0026] The present invention will be further described below in conjunction with specific drawings.

[0027] As shown in the following formula:

[0028]

[0029] (1) Weigh 1.5 g of the water-based polymerization raw material acrylamide (AAm) according to the ratio of raw materials and place it in 30 g of pure water for stirring. At this time, the temperature is 15 degrees Celsius, the stirring speed is 300 rpm, and the stirring time lasts for 40 minutes;

[0030] (2) After the cross-linking agent is dispersed evenly, take 0.03 g of initiator persulfate according to the proportion and place it in the solution. At this time, the dissolution of persulfate needs to continue stirring for 35 minutes;

[0031] (3) Add 24 μl of catalyst N, N, N', N'-tetramethylethylenediamine (TEMED) by injection. After the addition, the reaction system is quickly transferred to a sealed system and placed in a light-proof environment at 10 degrees Celsius. Polymerization reaction, the reaction dur...

Embodiment 2

[0034] The present invention will be further described below in conjunction with specific drawings.

[0035] As shown in the following formula:

[0036]

[0037] (1) Weigh 1.5 g of the water-based polymerization raw material acrylamide (AAm) according to the ratio of raw materials and place it in 30 g of pure water for stirring. At this time, the temperature is 15 degrees Celsius, the stirring speed is 300 rpm, and the stirring time lasts for 40 minutes;

[0038] (2) After the raw materials are stirred evenly, add 0.5ml of cross-linking agent vinylpyrrolidone (NVP) in proportion, and continue stirring for 10-30 minutes;

[0039] (3) After the cross-linking agent is uniformly dispersed, take 0.03 g of initiator persulfate according to the proportion and place it in the solution. At this time, the dissolution of persulfate needs to continue stirring for 35 minutes;

[0040] (4) Add 24 μl of catalyst N, N, N', N'-tetramethylethylenediamine (TEMED) by injection. After the addi...

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PUM

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Abstract

The invention relates to a preparation method and an application of an aqueous polymer polyamide in paper-making. The preparation method specifically comprises the following steps: (1) stirring an amide matrix in pure water, wherein the temperature at the moment is 5-25 DEG C, the stirring speed is 200-600rpm, and the stirring time is 30-80 minutes; (2) after the raw material is uniformly stirred, adding a cross-linking agent according to a ratio, and continuing stirring for 10-30 minutes; (3) after uniformly dispersing the cross-linking agent, weighing an initiator according to a ratio, and continuously stirring for 30-50 minutes to dissolve the initiator; (4) adding a catalyst in an injection mode, rapidly transferring the reaction system to a sealed system after the catalyst is added, and performing polymerization reaction for 24-78 hours in a light-shading environment of 5-30 DEG C, so as to obtain a product, namely, the aqueous polymer polyamide. A reinforcing agent / bonding agent for paper-making is free of pollutant component when being prepared by using an aqueous polymerization method, no waste gas materials are generated in the production process, the environment is protected, and the product is adjustable in formula and wide in application range.

Description

【Technical field】 [0001] The invention relates to the technical field of polyamide, in particular to a preparation method of water-based polymer polyamide and its application in papermaking. 【Background technique】 [0002] With the development of science and technology, the industry's requirements for paper are gradually increasing. Although the development of wet strength agents is very fast, it is still rare to have a good general application effect in industry. There are two main problems: on the one hand, most of the wet strength agents added to the paper will have certain toxicity, and it is difficult to recycle broken paper, which will cause environmental protection problems and restrictions on usage; on the other hand, the cost problem, Commonly used wet strength agents such as MF resin and PAE are still widely used although their effects are limited due to their low prices, and it will take some time for new environmental-friendly and high-efficiency wet strength ag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F120/56C08F220/56C08F226/10C08F2/10C09J133/26D21H21/18
Inventor 刘水平谭连江李晓强
Owner PINGHU JINGXING PACKING MATERIAL CO LTD