CN105085816A

CN105085816A - Salt-tolerant agricultural nutritional type super absorbent resin and preparation method thereof

Info

Publication number: CN105085816A
Application number: CN201510508902.0A
Authority: CN
Inventors: 李桂武
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-08-18
Filing date: 2015-08-18
Publication date: 2015-11-25

Abstract

The invention provides salt-tolerant agricultural nutritional type super absorbent resin and a preparation method thereof. The salt-tolerant agricultural nutritional type super absorbent resin comprises the following raw materials in percentage by weight: 3%-6% of xanthan gum, 4%-7% of guar gum, 2%-7% of sodium humate, 4%-9% of monoammonium phosphate, 30%-45% of acrylic acid, 5%-15% of sodium hydroxide, 4%-15% of a reinforcing agent, 5%-15% of an initiator and 5%-15% of a cross-linking agent. The preparation process of the salt-tolerant agricultural nutritional type super absorbent resin is simple, the utilized raw materials are easily available, and prepared absorbent resin has relatively high water-absorbing capacity and salt tolerance and can supply nutrient substances required for the growth of crops.

Description

Salt tolerant nutrition type for agricultural use super absorbent resin and preparation method thereof

Technical field

The present invention relates to water-absorbing resin field, be specifically related to a kind of salt tolerant nutrition type for agricultural use superabsorbent resin and preparation method thereof.

Background technology

Along with nearly twoth century mankind's quantity rapid growth on earth, particularly after the Industrial Revolution, the mankind are also very big to asking for of earth resources, the particularly use of Freshwater resources, also day by day serious in the fresh water situation agriculturally used, inventing a kind of super absorbent resin that can be widely used in agriculturally, is also the important directions of present scientists study.

Be widely used in now super absorbent resin agriculturally, although certain soaking effect can be reached, but this water-absorbing resin salt tolerance is poor, and be used in agriculturally, the effective nutritive ingredient of farm crop can not be supplied to, promote crop growth, also can absorb the nutritive substance in farm crop Soil Surrounding.

Summary of the invention

For the deficiencies in the prior art, the invention provides a kind of salt tolerant nutrition type for agricultural use super absorbent resin and preparation method thereof, water-absorbing resin can be had there is stronger salt tolerance, can also effectively provide crop growth necessary nutritive ingredient.

For realizing above object, the present invention is achieved by the following technical programs:

A kind of salt tolerant nutrition type for agricultural use super absorbent resin, it is characterized in that, the weight percent of raw material is: xanthan gum 3-6%, guar gum 4-7%, sodium humate 2-7%, monoammonium phosphate 4-9%, vinylformic acid 30-45%, sodium hydroxide 5-15%, toughener 4-15%, initiator 5-15%, linking agent 5-15%.

Further, described toughener is one or more in methylene-succinic acid, laurylene base diacid, polyacrylamide.

Preferably, described initiator is one or more in ammonium persulphate, cyclohexanone peroxide, dibenzoyl peroxide.

Preferably, described linking agent is one or both in polyaziridine, dicumyl peroxide.

Preferably, the preparation method of described salt tolerant nutrition type for agricultural use super absorbent resin, step is as follows:

1) prepare mass concentration be the sodium hydroxide solution of 15-40%, and in and vinylformic acid, degree of neutralization is that 50-80% is for subsequent use;

2) xanthan gum, guar gum are joined reaction vessel, and pass into nitrogen protection, heating in water bath; 50-80 DEG C of activation 0.5-2 hour; cooling temperature is 20-60 DEG C, adds the mixture of humic acids and monoammonium phosphate, then in vinylformic acid, toughener, initiator, the linking agent of becoming reconciled; water-bath adds; pass into nitrogen, control temperature of reaction is 50-80 DEG C simultaneously, and the reaction times is 2-5 hour; product vacuum is dry, to obtain final product.

The invention provides a kind of salt tolerant nutrition type for agricultural use super absorbent resin and preparation method thereof, the sodium humate adopted in raw material has the function of chessom, effectively can improve buffering power of soil, be conducive to the growth of farm crop, monoammonium phosphate also can promote crop growth as a kind of fertilizer, the toughener adopted effectively can have stronger lock water-based energy by water-absorbing resin, can also strengthen the salt tolerance of water-absorbing resin.

Embodiment

For making the object of the embodiment of the present invention, technical scheme and advantage clearly, be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

Embodiment 1:

In the present embodiment, the weight percent getting raw material is: xanthan gum 4%, guar gum 5%, sodium humate 4%, monoammonium phosphate 8%, vinylformic acid 40%, sodium hydroxide 12%, toughener 11%, initiator 7%, linking agent 9%.

The preparation method of salt tolerant nutrition type for agricultural use super absorbent resin, step is as follows:

1) preparing mass concentration is the sodium hydroxide solution of 35%, and in and vinylformic acid, degree of neutralization is 65% for subsequent use;

2) xanthan gum, guar gum are joined reaction vessel, and pass into nitrogen protection, heating in water bath; 60 DEG C activate 2 hours; cooling temperature is 50 DEG C, adds the mixture of humic acids and monoammonium phosphate, then in vinylformic acid, toughener, initiator, the linking agent of becoming reconciled; water-bath adds; pass into nitrogen, controlling temperature of reaction is 50 DEG C, and the reaction times is 5 hours simultaneously; product vacuum is dry, obtain product water-absorbing resin.

The water-absorbing resin recorded:

Inhaling distilled water multiplying power is 1203g;

Inhale the physiological saline multiplying power 809g of 0.9%.

Embodiment 2:

In the present embodiment, the weight percent getting raw material is: xanthan gum 4%, guar gum 5%, sodium humate 6%, monoammonium phosphate 7%, vinylformic acid 38%, sodium hydroxide 13%, toughener 10%, initiator 8%, linking agent 9%.

1) preparing mass concentration is the sodium hydroxide solution of 30%, and in and vinylformic acid, degree of neutralization is 65% for subsequent use;

2) xanthan gum, guar gum are joined reaction vessel, and pass into nitrogen protection, heating in water bath; 60 DEG C activate 1.5 hours; cooling temperature is 40 DEG C, adds the mixture of humic acids and monoammonium phosphate, then in vinylformic acid, toughener, initiator, the linking agent of becoming reconciled; water-bath adds; pass into nitrogen, controlling temperature of reaction is 70 DEG C, and the reaction times is 3 hours simultaneously; product vacuum is dry, obtain product water-absorbing resin.

The water-absorbing resin recorded:

Inhaling distilled water multiplying power is 1008g;

Inhale the physiological saline multiplying power 606g of 0.9%.

Embodiment 3:

In the present embodiment, the weight percent getting raw material is: xanthan gum 6%, guar gum 5%, sodium humate 7%, monoammonium phosphate 8%, vinylformic acid 31%, sodium hydroxide 12%, toughener 12%, initiator 8%, linking agent 11%.

1) preparing mass concentration is the sodium hydroxide solution of 25%, and in and vinylformic acid, degree of neutralization is 70% for subsequent use;

2) xanthan gum, guar gum are joined reaction vessel, and pass into nitrogen protection, heating in water bath; 70 DEG C activate 1 hour; cooling temperature is 45 DEG C, adds the mixture of humic acids and monoammonium phosphate, then in vinylformic acid, toughener, initiator, the linking agent of becoming reconciled; water-bath adds; pass into nitrogen, controlling temperature of reaction is 65 DEG C, and the reaction times is 4 hours simultaneously; product vacuum is dry, obtain product water-absorbing resin.

The water-absorbing resin recorded:

Inhaling distilled water multiplying power is 908g;

Inhale the physiological saline multiplying power 781g of 0.9%.

Embodiment 4:

In the present embodiment, the weight percent getting raw material is: xanthan gum 5%, guar gum 6%, sodium humate 5%, monoammonium phosphate 6%, vinylformic acid 37%, sodium hydroxide 9%, toughener 9%, initiator 12%, linking agent 11%.

1) preparing mass concentration is the sodium hydroxide solution of 30%, and in and vinylformic acid, degree of neutralization is 75% for subsequent use;

2) xanthan gum, guar gum are joined reaction vessel, and pass into nitrogen protection, heating in water bath; 75 DEG C activate 1 hour; cooling temperature is 55 DEG C, adds the mixture of humic acids and monoammonium phosphate, then in vinylformic acid, toughener, initiator, the linking agent of becoming reconciled; water-bath adds; pass into nitrogen, controlling temperature of reaction is 60 DEG C, and the reaction times is 3.5 hours simultaneously; product vacuum is dry, obtain product water-absorbing resin.

The water-absorbing resin recorded:

Inhaling distilled water multiplying power is 1003g;

Inhale the physiological saline multiplying power 907g of 0.9%.

Above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims

1. a salt tolerant nutrition type for agricultural use super absorbent resin, it is characterized in that, the weight percent of raw material is: xanthan gum 3-6%, guar gum 4-7%, sodium humate 2-7%, monoammonium phosphate 4-9%, vinylformic acid 30-45%, sodium hydroxide 5-15%, toughener 4-15%, initiator 5-15%, linking agent 5-15%.

2. salt tolerant nutrition type for agricultural use super absorbent resin as claimed in claim 1, is characterized in that, described toughener is one or more in methylene-succinic acid, laurylene base diacid, polyacrylamide.

3. salt tolerant nutrition type for agricultural use super absorbent resin as claimed in claim 1, is characterized in that, described initiator is one or more in ammonium persulphate, cyclohexanone peroxide, dibenzoyl peroxide.

4. salt tolerant nutrition type for agricultural use super absorbent resin as claimed in claim 1, is characterized in that, described linking agent is one or both in polyaziridine, dicumyl peroxide.

5. the preparation method of the salt tolerant nutrition type for agricultural use super absorbent resin as described in claim 1-4 any one, it is characterized in that, step is as follows: