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Water-absorbing acrylate foam material and preparation method and application thereof

A technology of acrylate and foam materials, which can be used in absorbent pads, medical science, bandages, etc. It can solve the problems of low electrolyte and other performance effects of foam materials, and achieve high absorption rate and good water absorption.

Active Publication Date: 2014-07-23
GUANGDONG LIANSU TECH INDAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the amount of electrolyte added is too small, it is difficult to achieve the above purpose. However, if the amount of electrolyte added is too large, it will have a negative impact on other properties of the foam material

Method used

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  • Water-absorbing acrylate foam material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 1. Preparation of water-absorbent acrylate foam

[0048] (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, Tween-80 1.3g, stir the oil phase evenly for use, wherein the mass ratio of isooctyl acrylate to isooctyl methacrylate is 9:1.

[0049] (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.

[0050] (3) To prepare the initiator phase, weigh 1.71g of ammonium persulfate, add water to 10g to dissolve it, and set aside.

[0051] (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 viscous Add 160g of the water phas...

Embodiment 2

[0056] 1. Preparation of water-absorbent 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, 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 viscous Add 160g of the water p...

Embodiment 3

[0064] 1. Preparation of water-absorbent 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, 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 viscous Add 160g of the water phase t...

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Abstract

The invention discloses a water-absorbing acrylate foam material and a preparation method and application thereof. The prepared water-absorbing acrylate foam material has a certain toughness and is small in foam hole size and suitable for dispersing and storing waterborne fluid, the average deionized water absorption rate, average saline water absorption rate, average artificial urine absorption rate and average artificial blood absorption rate are larger than 15g / g, and the water retention rate within half an hour is over 80 percent. Therefore, the massive soft water-absorbing material is applied to the field of hygienic products.

Description

technical field [0001] The invention belongs to the field of water-absorbing materials, and in particular relates to a 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 only ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F222/14C08F222/20C08F2/30C08J9/00A61L15/24
Inventor 林艳芬
Owner GUANGDONG LIANSU TECH INDAL
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