Polyacrylic acid super absorbent resin containing illite and fly ash and preparation method

A technology of superabsorbent resin and polyacrylic acid, which is applied in the field of superabsorbent composite materials and its preparation, can solve the problems of low water absorption, poor salt resistance, environmental impact, etc., and achieve the effects of improving fertility, facilitating release, and improving soil

Inactive Publication Date: 2007-02-07
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] However, superabsorbent resins currently have obvious defects: ionic superabsorbent resins have high water absorption, but poor salt resistance; non-ionic superabsorbent resins have good salt resistance, but low water absorption
However, since the reverse phase suspension polymerization method uses an organic solvent as the oil phase, it has a certain impact on the environment

Method used

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  • Polyacrylic acid super absorbent resin containing illite and fly ash and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 Process, take 4g of acrylic acid monomer and dissolve it in a beaker, under the condition of ice bath, 8.441 grams of NaOH solution with a mass percentage of 25% is added dropwise to acrylic acid by a neutralization degree of 95% (mol percentage), and continuously Then add 0.0032 grams of N, N-methylenebisacrylamide to the resulting solution and stir for a few minutes until the crosslinking agent is completely dissolved; then add 0.6 grams of illite, stir until the illite is evenly dispersed, and then add pulverized coal 0.6 gram of ash, stir until the fly ash is uniformly dispersed to obtain a mixed solution; the gained mixed solution is ultrasonically dispersed (the power of the ultrasonic generator is 200-4000 watts, the frequency of the ultrasonic wave is 100 kilohertz-300 megahertz, and the ultrasonic time is 2 -15 minutes), take out and stir, and circulate ultrasonic pulverization and stirring to obtain a mixture with considerable viscosity; add 0...

Embodiment 2

[0044] Weigh 4g of acrylic acid monomer and dissolve it in a beaker. Under the condition of ice bath, 8.441 grams of NaOH solution with a mass percentage of 25% is added dropwise to acrylic acid with a neutralization degree of 95% (mol percentage), and continuously stirred ; Add 0.0044 g of N, N-methylenebisacrylamide to the resulting solution and stir for several minutes until the crosslinking agent is completely dissolved; then add 0.8 g of illite, stir until the illite is evenly dispersed, and then add 0.8 gram of fly ash gram, stir until the fly ash is uniformly dispersed to obtain a mixed solution; the gained mixed solution is dispersed through ultrasonic (the power of the ultrasonic generator is 200-4000 watts, the frequency of the ultrasonic wave is 100 kilohertz-300 megahertz, and the ultrasonic time is 2-15 Minutes), take out and stir, circulate ultrasonic pulverization and stirring to obtain a mixture with considerable viscosity; add 0.0160 g of ammonium persulfate in...

Embodiment 3

[0046] Weigh 4g of acrylic acid monomer and dissolve it in a beaker, and add 8.886 grams of 25% NaOH solution to the acrylic acid drop by drop according to the neutralization degree of 100% (mol percentage) under the condition of ice bath, and constantly stir Add 0.0044 g of N, N-methylenebisacrylamide to the resulting solution and stir for a few minutes until the crosslinking agent is completely dissolved; then add 0.4 g of illite, stir until the illite is evenly dispersed, and then add 0.4 gram of fly ash gram, stir until the fly ash is uniformly dispersed to obtain a mixed solution; the gained mixed solution is dispersed through ultrasonic (the power of the ultrasonic generator is 200-4000 watts, the frequency of the ultrasonic wave is 100 kilohertz-300 megahertz, and the ultrasonic time is 2-15 Minutes), take out and stir, and circulate ultrasonic pulverization and stirring to obtain a mixture with considerable viscosity; add 0.0180 g of ammonium persulfate into the mixture...

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Abstract

the invention discloses a high-absorbent resin and preparing method of polyacrylic acid with glimmerton and coal ash, which comprises the following parts: acroleic acid, neutralizer, initiator, crosslinking agent, coal ash and glimmerton, wherein the adding quality of neutralizer is 60-110 molar percentage of neutralizing degree as acroleic acid; the initiator quality is 0.10-0.50% as acroleic acid; the crosslinking agent quality is 0.02-0.20% as acroleic acid; the coal ash and glimmerton quality are 10-120% as acroleic acid, which are blended according to 1: 0.5-2.

Description

technical field [0001] The invention relates to a superabsorbent composite material and a preparation method thereof, in particular to a polyacrylic acid superabsorbent resin containing illite and fly ash used in agriculture, forestry, gardens, desert control and the like and a preparation method thereof. Background technique [0002] Superabsorbent resin is a low-crosslinking or partially crystalline polymer with many hydrophilic groups, which has extremely high water absorption and water retention functions. It belongs to functional polymer compounds, referred to as SAP. It can absorb water hundreds to thousands of times its own mass, not only has a fast water absorption rate and a high magnification, but also absorbs water that is not easily squeezed out by mechanical pressure, and has excellent water retention performance, especially its stable structure and simple use. It does not pollute the environment, is non-toxic and tasteless, so it has a wide range of uses and ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/00C08F120/00C08F2/44C08K5/20C08K3/00
Inventor 沈上越凌辉范力仁王伟
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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