High-strength water-absorbing acrylate foam material as well as preparation method and application thereof

An acrylate and foam material technology, applied in absorbent pads, medical science, bandages, etc., can solve the problems of insufficient tensile properties, increase the tensile strength of acrylate foam materials, etc., and achieve small cell size, good water absorption, and difficulty in broken 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 the acrylate foam materials currently on the market, although it has been reported in the literature that a foam material with a faster liquid absorption rate has been prepared, but due to its insufficient tensile properties, it is important to increase the tensile strength of the acrylate foam material. Practical meaning

Method used

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  • High-strength water-absorbing acrylate foam material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 1. Preparation of high-strength water-absorbing acrylate foam

[0049] (1) To prepare an 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 styrene , Tween-80 1.3g, stir the oil phase evenly for use, wherein the mass ratio of isooctyl acrylate to isooctyl methacrylate is 9:1.

[0050] (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.

[0051] (3) To prepare the initiator phase, weigh 1.71g of ammonium persulfate, add water to 10g to dissolve it, and set aside.

[0052] (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 emulsion become...

Embodiment 2

[0056] 1. Preparation of high-strength water-absorbing acrylate foam

[0057] (1) To prepare the 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, 1g of styrene, Tween-80 1.3g, stir the oil phase evenly for use, wherein the mass ratio of isooctyl acrylate to isooctyl methacrylate is 7:1.

[0058] (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.

[0059] (3) To prepare the initiator phase, weigh 1.71g of ammonium persulfate, add water to 10g to dissolve it, and set aside.

[0060] (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 emulsion becomes vis...

Embodiment 3

[0064] 1. Preparation of high-strength water-absorbing acrylate foam

[0065] (1) To prepare the 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 0.6g of styrene , Tween-80 1.3g, stir the oil phase evenly for use, wherein the mass ratio of isooctyl acrylate to isooctyl methacrylate is 11:1.

[0066] (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.

[0067] (3) To prepare the initiator phase, weigh 1.71g of ammonium persulfate, add water to 10g to dissolve it, and set aside.

[0068] (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 emulsion becomes vi...

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Abstract

The invention discloses a high-strength water-absorbing acrylate foam material as well as a preparation method and application thereof. The tensile strength of the prepared high-strength water-absorbing acrylate foam material is remarkably enhanced. The product is small in dimension of micropore, and the average deionized water absorption, the average saline absorption, the average artificial urine absorption and the average artificial blood absorption are greater than 15g / g, the water-retention rates within half an hour are over 80%, and the product is suitable for being dispersed and stored in water-containing fluids. Therefore, the bulky flexible water absorbing material disclosed by the invention is very suitable for being applied to the field of hygienic products.

Description

technical field [0001] The invention belongs to the field of water-absorbing materials, in particular to a high-strength 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 resin, absorbing onl...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F212/08C08F2/30C08J9/28A61L15/24
Inventor 林艳芬
Owner 佛山市联塑万嘉新卫材有限公司
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