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Method for preparing liquid absorption polymers

A manufacturing method and polymer technology, applied in the field of acrylate-acrylic acid copolymer manufacturing, to achieve the effect of fast oil absorption, cheap price, and favorable penetration and diffusion

Active Publication Date: 2013-12-11
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the technical problem to be solved by the present invention is to abandon the shortcomings of single liquid-absorbing functional polymers and current double-absorbing functional polymers, and provide a method for manufacturing a novel double-absorbing functional polymer to make it absorb water or The oil-absorbing function is a direct function, and the other liquid-absorbing function is a potential function. When necessary, the potential function can be changed into a direct function under certain conditions, and the original direct function is closed at the same time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Measure 77.3ml of n-butyl methacrylate monomer, 46.4ml of butyl acrylate monomer, and 26.3ml of acrylic acid monomer, and place the three in a large container equipped with magnetic stirring. Quality 0.5% initiator benzoyl peroxide 0.6923g, and it is poured in the above-mentioned container, start magnetic stirring, until initiator is completely dissolved in the above-mentioned monomer, stop stirring; Measure deionized water 450ml, make it The ratio of the volume to the total volume of the above-mentioned monomers is 3:1, and it is placed in another large container equipped with a magnetic stirring and heating system, and 2.25g of polyvinyl alcohol, a dispersant accounting for 0.5% of the total mass of deionized water, is weighed , pour it into the above-mentioned deionized water, let it soak for 24 hours, start the magnetic stirring and heating system, so that the dispersant is completely dissolved in the deionized water, stop stirring and heating, and cool the mixed sys...

Embodiment 2

[0043] Measure 77.3ml of n-butyl methacrylate monomer, 46.4ml of butyl acrylate monomer, and 26.3ml of acrylic acid monomer, and place the three in a large container equipped with magnetic stirring. Quality 0.5% initiator benzoyl peroxide 0.6923g, and it is poured in the above-mentioned container, start magnetic stirring, until initiator is completely dissolved in the above-mentioned monomer, stop stirring; Measure deionized water 450ml, make it The ratio of the volume to the total volume of the above-mentioned monomers is 3:1, and it is placed in another large container equipped with a magnetic stirring and heating system, and 2.25g of polyvinyl alcohol, a dispersant accounting for 0.5% of the total mass of deionized water, is weighed , pour it into the above-mentioned deionized water, let it soak for 24 hours, start the magnetic stirring and heating system, so that the dispersant is completely dissolved in the deionized water, stop stirring and heating, and cool the mixed sys...

Embodiment 3

[0048]Measure 77.3ml of n-butyl methacrylate monomer, 46.4ml of butyl acrylate monomer, and 26.3ml of acrylic acid monomer, and place the three in a large container equipped with magnetic stirring. Quality 0.5% initiator benzoyl peroxide 0.6923g, and it is poured in the above-mentioned container, start magnetic stirring, until initiator is completely dissolved in the above-mentioned monomer, stop stirring; Measure deionized water 450ml, make it The ratio of the volume to the total volume of the above-mentioned monomers is 3:1, and it is placed in another large container equipped with a magnetic stirring and heating system, and 2.25g of polyvinyl alcohol, a dispersant accounting for 0.5% of the total mass of deionized water, is weighed , pour it into the above-mentioned deionized water, let it soak for 24 hours, start the magnetic stirring and heating system, so that the dispersant is completely dissolved in the deionized water, stop stirring and heating, and cool the mixed syst...

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Abstract

The invention discloses a method for preparing liquid absorption polymers, belonging to the field of polymer preparing technologies. According to the method for preparing novel double-absorption-function polymers, disclosed by the invention, a water or oil absorption function can serve as a direct function, and the other liquid absorption function serves as a potential function; as required, the potential function can be changed into the direct function under certain conditions, and the original direct function is closed simultaneously. The method is based on a hydrogen bond crosslinking and lipophilic hydrophobic skeleton supporting mechanism, and meanwhile, a suspension polymerization method and an alkali liquor hydrolysis method are utilized. Compared with the current conventional double-absorption-function polymers, the polymers prepared by the method have the advantages that the water absorption and oil absorption are relatively high, the water adsorption can reach 67.3g / g, the oil adsorption can reach 9.5g / g, and the double functions are divided into the direct function and the potential function; as required, the direct function can be closed and the potential function can be changed into the direct function, so that the polymers can be widely applied to the field of oil-water separation.

Description

technical field [0001] The present invention relates to a polymer manufacturing technology, specifically a (meth)acrylate-(meth)acrylic acid (or salt) that has oil-absorbing or water-absorbing functions and can be controlledly converted between oil-absorbing and water-absorbing functions The manufacturing method of the copolymer is based on the hydrogen bond cross-linking and lipophilic hydrophobic skeleton support mechanism, and simultaneously utilizes the suspension polymerization method and the lye hydrolysis method. Background technique [0002] Water-absorbing polymer is a new type of functional polymer material that has been developed rapidly in recent years. Because it can absorb water tens to thousands of times its own mass, and the absorbed water is not easy to be squeezed out under mechanical pressure, It has excellent water retention properties, so it is widely used in agriculture, forestry, horticulture, etc. as soil improvers, sanitary materials, industrial dehy...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/14C08F220/28C08F220/34C08F220/44C08F220/06C08F220/56C08F2/20C08F8/12
Inventor 徐乃库蒋敏韩旭彤莫锦鹏肖长发
Owner TIANJIN POLYTECHNIC UNIV