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High-breathability water absorbable acrylic ester foamed material as well as preparation method and application thereof

A technology of acrylate and foam materials, which is applied in the field of water-absorbing materials, can solve the problems of limiting the application of acrylate foam materials, unsuitable for application in the field of hygiene products, and unsuitable for large-scale production, etc., and achieves small cell size, improved air permeability, Good water absorption effect

Active Publication Date: 2014-12-10
佛山市联塑万嘉新卫材有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For foam materials prepared from acrylate monomers, more expensive fillers or additives are added in order to improve the processing performance of the product and dimensional stability in the prior art. This aspect causes the production cost to be too high and is not suitable. Large-scale production; On the other hand, most of the acrylate foam materials prepared in the prior art have poor gas permeability, and are not suitable for application in the field of hygiene products, which limits the application of acrylate foam materials to a large extent

Method used

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  • High-breathability water absorbable acrylic ester foamed material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 1. Preparation of highly air-permeable water-absorbing acrylate foam

[0046] (1) To prepare the oil phase system, weigh 7.2g of isooctyl acrylate, 0.8g of isooctyl methacrylate, 4.8g of ethylene glycol dimethacrylate, 0.4g of hexanediol diacrylate, and 0.8g of nano Calcium carbonate, Tween-80 1.3g, stir the oil phase evenly for use, wherein the mass ratio of isooctyl acrylate to isooctyl methacrylate is 9:1.

[0047] (2) Prepare an aqueous phase system, weigh 0.096g of calcium chloride, add water to 480g to dissolve, at this time, the mass fraction of the electrolyte is 0.02%, and it is ready for use.

[0048] (3) To prepare the initiator phase, weigh 1.71g of ammonium persulfate, add water to 10g to dissolve it, and set aside.

[0049] (4) Transfer 320g of the prepared water phase into a 1000ml three-necked flask, start stirring, raise the temperature to 75°C, and the stirring speed is above 800 rpm, then add the well-stirred oil phase into the three-necked flask unt...

Embodiment 2

[0053] 1. Preparation of highly air-permeable water-absorbing acrylate foam

[0054] (1) To prepare an oil phase system, weigh 5.6g of isooctyl acrylate, 0.8g of isooctyl methacrylate, 4.8g of ethylene glycol dimethacrylate, 0.4g of hexanediol diacrylate, and 0.9g of nano Calcium carbonate, Tween-80 1.3g, stir the oil phase evenly for use, wherein the mass ratio of isooctyl acrylate to isooctyl methacrylate is 7:1.

[0055] (2) Prepare an aqueous phase system, weigh 0.48g of calcium chloride, add water to 480g to dissolve it, at this time, the mass fraction of the electrolyte is 0.1%, and it is ready for use.

[0056] (3) To prepare the initiator phase, weigh 1.71g of ammonium persulfate, add water to 10g to dissolve it, and set aside.

[0057] (4) Transfer 320g of the prepared water phase into a 1000ml three-necked flask, start stirring, raise the temperature to 75°C, and the stirring speed is above 800 rpm, then add the well-stirred oil phase into the three-necked flask unt...

Embodiment 3

[0061] 1. Preparation of highly air-permeable water-absorbing acrylate foam

[0062] (1) To prepare an oil phase system, weigh 8.8g of isooctyl acrylate, 0.8g of isooctyl methacrylate, 4.8g of ethylene glycol dimethacrylate, 0.4g of hexanediol diacrylate, and 0.7g of nano Calcium carbonate, Tween-80 1.3g, stir the oil phase evenly for use, wherein the mass ratio of isooctyl acrylate to isooctyl methacrylate is 11:1.

[0063] (2) Prepare the water phase system, weigh 4.8g of calcium chloride, add water to 480g to dissolve, at this time, the mass fraction of the electrolyte is 1%, and it is ready for use.

[0064] (3) To prepare the initiator phase, weigh 1.71g of ammonium persulfate, add water to 10g to dissolve it, and set aside.

[0065] (4) Transfer 320g of the prepared water phase into a 1000ml three-necked flask, start stirring, raise the temperature to 75°C, and the stirring speed is above 800 rpm, then add the well-stirred oil phase into the three-necked flask until the...

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Abstract

The invention discloses a high-breathability water absorbable acrylic ester foamed material as well as a preparation method and an application thereof. The prepared high-breathability water absorbable acrylic ester foamed material has strong toughness, and good breathability; the obtained foamed material is small in cell size, average deionized water absorption rate, average saline water absorption rate, average artificial urine absorption rate and average artificial blood absorption rate of the obtained foamed material are respectively higher than 15g / g, and water retention rate in half hour is more than 80%, so that the high-breathability water absorbable acrylic ester foamed material is applicable to dispersion and storage of water containing fluid; meanwhile, nano calcium carbonate is added, so that production cost is obviously reduced, and the high-breathability water absorbable acrylic ester foamed material is applicable to mass production; a block flexible water absorbing material in the invention is suitable for application in the field of health products.

Description

technical field [0001] The invention belongs to the field of water-absorbing materials, and in particular relates to a highly air-permeable water-absorbing acrylate foam material and its preparation method and application. Background technique [0002] In today's hygienic products, the water-absorbing material inside is mainly granular synthetic resin. After absorbing water, urine or blood, it will form a gel, which is easy to form agglomerates, making it difficult to fix in one position. It is very uncomfortable in the actual use process. Comfortable. Therefore, it is of great significance to develop block-shaped soft water-absorbing materials. [0003] Normal blood is composed of blood cells, plasma, etc. The diameter of blood cells is about 8 μm, and the diameter of acrylic acid molecules is much smaller than that of blood cells. Therefore, blood cells are not easily absorbed by the gel-like superabsorbent resin, and can only stay on the surface of the superabsorbent r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F2/44C08F2/30C08K3/26C08J9/28
Inventor 林艳芬
Owner 佛山市联塑万嘉新卫材有限公司
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