Highly air-permeable water-absorbing acrylate foam material and its preparation method and application

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 sanitary products, and unsuitable for large-scale production, etc., and achieves small cell size, improved air permeability, Good water absorption effect

Active Publication Date: 2016-11-23
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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  • Highly air-permeable water-absorbing acrylate foam material and its preparation method and application

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 highly air-permeable water-absorbing acrylate foam material and its preparation method and application. The prepared highly air-permeable water-absorbing acrylate foam material has strong toughness and good air permeability; the cell size of the obtained foam material Tiny, its average deionized water absorption rate, average saline absorption rate, average artificial urine absorption rate, and average artificial blood absorption rate are all greater than 15g / g, and the half-hour water retention rate is above 80%, suitable for dispersing and storing aqueous fluids At the same time, the present invention significantly reduces the production cost by adding nano-calcium carbonate, and is suitable for large-scale production; the block-shaped soft water-absorbing material of the present invention is very suitable for use in the field of sanitary 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 a blood cell is about 8 µm, and the diameter of the acrylic molecule is much smaller than that of a blood cell. 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 Patents(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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