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Organic composite water-retaining agent and preparation method thereof

A water-retaining agent, organic technology, applied in the field of organic composite water-retaining agent and its preparation, can solve the problems of poor biodegradability, low gel strength, high cost, etc., and achieve the effects of low production cost, good water absorption effect and high comprehensive performance

Inactive Publication Date: 2015-06-03
凯姆勒科技发展(天津)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, existing organic water retaining agents have disadvantages such as high cost, low gel strength, and poor biodegradability after use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A kind of organic composite water retaining agent, its raw material and content are as follows:

[0015] 10 parts of bentonite, 20 parts of agar, 50 parts of acrylic acid, 100 parts of acrylamide, 0.05 part of ammonium persulfate, 0.05 part of N,N'-methylenebisacrylamide, 7.5 parts of NaOH.

[0016] A kind of organic composite water-retaining agent its preparation method is as follows:

[0017] Heat the agar to 85°C to dissolve it, then add NaOH to acrylic acid in an ice-water bath, then add acrylamide, bentonite powder, and cross-linking agent in turn, stir well, preheat in water at 85°C, and then mix with agar Mix, then add initiator, stir well and heat to 100°C.

Embodiment 2

[0019] A kind of organic composite water retaining agent, its raw material and content are as follows:

[0020] 30 parts of bentonite, 30 parts of agar, 50 parts of acrylic acid, 100 parts of acrylamide, 1 part of ammonium persulfate, 1 part of N,N'-methylenebisacrylamide, 7.5 parts of NaOH.

[0021] A kind of organic composite water-retaining agent its preparation method is as follows:

[0022] Heat the agar to 85°C to dissolve it, then add NaOH to acrylic acid in an ice-water bath, then add acrylamide, bentonite powder, and cross-linking agent in turn, stir well, preheat in water at 85°C, and then mix with agar Mix, then add initiator, stir well and heat to 100°C.

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PUM

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Abstract

The invention discloses an organic composite water-retaining agent. The organic composite water-retaining agent comprises the following raw materials in parts by weight: 10-30 parts of bentonite, 20-30 parts of agar, 50 parts of acrylic acid, 100 parts of acrylamide, 0.05-1 part of an initiator, 0.05-1 part of a cross-linking agent and 5-10 parts of NaOH, wherein the initiator is hydrogen peroxide or ammonium persulfate, and the cross-linking agent is N,N'-methylene bisacrylamide. The preparation method of the organic composite water-retaining agent comprises the steps of heating the agar to 85 DEG C until the agar is dissolved, adding NaOH in acrylic acid in an ice water bath condition, orderly adding acrylamide, bentonite powder and the cross-linking agent, uniformly stirring, preheating in the water having the temperature of 85 DEG C, mixing the mixture with the agar, adding the initiator, uniformly stirring and heating to 100 DEG.C. The water-retaining agent provided by the invention is good in water-absorbing effect, high in comprehensive performance, low in production cost, and in favor of expanding the applicable range.

Description

technical field [0001] The invention relates to the field of water-retaining agents, in particular to an organic composite water-retaining agent and a preparation method thereof. Background technique [0002] Organic water retaining agent quickly absorbs liquid water dozens or even thousands of times its own weight through hydration and becomes a gel with good water retention. It has been widely used in medical and health care, agriculture, forestry and gardening, crop planting, landscape greening and other fields. However, existing organic water-retaining agents have disadvantages such as high cost, low gel strength, and poor biodegradability after use. Contents of the invention [0003] The invention provides an organic composite water-retaining agent and a preparation method thereof, which have low production cost and good comprehensive performance. [0004] Technical scheme of the present invention is as follows: [0005] A kind of organic composite water retaining a...

Claims

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Application Information

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IPC IPC(8): C08F251/00C08F220/06C08F220/56C08F2/44C08K3/34
Inventor 尹立华
Owner 凯姆勒科技发展(天津)有限公司