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Strong wettable acrylate foam material and its preparation method and application

A technology of acrylate and foam materials, applied in the field of water-absorbing materials, can solve the problems of low water absorption rate of acrylate foam materials, affecting the water absorption rate of products, poor wettability, etc.

Active Publication Date: 2016-09-28
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 foams prepared from acrylate monomers, although the highly wettable acrylate foams disclosed in the prior art have partially improved the water absorption and water retention of the product, the prepared acrylate foams still have wettability. Poor defects, and the wettability of the foam directly affects the water absorption rate of the product, the worse the wettability, the lower the water absorption rate of the acrylate foam

Method used

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  • Strong wettable acrylate foam material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 1. Preparation of Strong Wettable Acrylic Foam

[0049] (1) 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, 0.8g of acrylic acid, 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 it, and at this time, the mass fraction of the electrolyte is 0.02%, and it is ready for use.

[0051] (3) Prepare the initiator phase, weigh 1.71 g of ammonium persulfate, add water to 10 g 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 keep the stirring speed above 800 rpm, then add the evenly stirred oil phase into the three-necked flask, and wait for the emulsion to be...

Embodiment 2

[0056] 1. Preparation of Strong Wettable Acrylic Foam

[0057] (1) To prepare an oil phase system, weigh 5.6 g of isooctyl acrylate, 0.8 g of isooctyl methacrylate, 4.8 g of ethylene glycol dimethacrylate, 0.4 g of hexanediol diacrylate, 1 g of acrylic acid, and Wen-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, and at this time, the mass fraction of the electrolyte is 0.1%, and it is ready for use.

[0059] (3) Prepare the initiator phase, weigh 1.71 g of ammonium persulfate, add water to 10 g 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 keep the stirring speed above 800 rpm, then add the evenly stirred oil phase into the three-necked flask, and wait for the emulsion ...

Embodiment 3

[0064] 1. Preparation of Strong Wettable Acrylic Foam

[0065] (1) 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, 1.1g of acrylic acid, 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 an aqueous phase system, weigh 4.8 g of calcium chloride, add water to 480 g to dissolve it, and at this time, the mass fraction of the electrolyte is 1%, and it is ready for use.

[0067] (3) Prepare the initiator phase, weigh 1.71 g of ammonium persulfate, add water to 10 g 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 keep the stirring speed above 800 rpm, then add the evenly stirred oil phase into the three-necked flask, and wait for the emulsion to beco...

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Abstract

The invention discloses a strong wettability acrylate foam material and its preparation method and application. The strong wettability acrylate foam material has a certain toughness, small cell size, strong wettability, and the water absorption rate of the prepared foam material High; the average deionized water absorption rate, the average salt water absorption rate, the average artificial urine absorption rate, and the average artificial blood absorption rate of the acrylate foam material of the present invention are all greater than 15g / g, and the water retention rate in half an hour is all above 85%. It is suitable for dispersing and storing water-containing fluids, so the block-shaped soft water-absorbing material of the present invention is very suitable for application 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 wettable 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 Patents(China)
IPC IPC(8): C08F220/18C08F222/14C08F220/16C08F218/08C08F222/20
Inventor 林艳芬
Owner 佛山市联塑万嘉新卫材有限公司
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