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

An acrylate, foam material technology, applied in absorbent pads, medical science, bandages, etc., can solve the problems of easy to form agglomeration, difficult to fix in one position, uncomfortable and so on

Inactive Publication Date: 2014-05-07
GUANGDONG LIANSU TECH INDAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In today's hygienic products, the water-absorbing material inside is mainly granular synthetic resin, which will form a gel after absorbing water, urin

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Preparation of water-absorbent acrylate foam

[0038] (1) To prepare the oil phase system, weigh 7.6g 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 and set aside.

[0039] (2) Prepare the water phase system, weigh 17.71g of calcium chloride, add water to 460g to dissolve, and set aside.

[0040] (3) To prepare the initiator phase, weigh 1.71g of ammonium persulfate, add water to 10g to dissolve it, and set aside.

[0041] (4) Transfer 300g 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 until the emulsion becomes viscous Add 160g of the water phase to the flask dropwise, and finally add the initiator phase to the flask. After polymerization, pour the mixture into a large polytetraf...

Embodiment 2

[0045] 1. Preparation of water-absorbent acrylate foam

[0046](1) To prepare an oil phase system, weigh 16.4g of isodecyl acrylate, 4.0g of dipropylene glycol dimethacrylate, 0.8g of triethylene glycol diacrylate, 2.0g of diglycerol monoisostearate, and Mix well and set aside.

[0047] (2) Prepare the water phase system, weigh 36.31g of calcium nitrate, add water to 480g to dissolve it, and set aside.

[0048] (3) Prepare the initiator phase, weigh 2.11g of sodium persulfate, add water to 10g to dissolve, and set aside.

[0049] (4) Transfer 320g of the prepared water phase into a 1000ml three-necked flask, start stirring, raise the temperature to 60°C, and stir at a speed above 800 rpm, then add the evenly stirred oil phase into the three-necked flask until the emulsion becomes viscous Add 160g of the water phase to the flask dropwise, and finally add the initiator phase to the flask. After the polymerization reaction, pour the mixture into a large polytetrafluoroethylene ...

Embodiment 3

[0053] 1. Preparation of water-absorbent acrylate foam

[0054] (1) Prepare the oil phase system, weigh 4.9g of octadecyl acrylate, 5.0g of isodecyl methacrylate, 8.6g of dipropylene glycol diacrylate, and 3.1g of Tween-20, stir the oil phase evenly and set aside .

[0055] (2) Prepare the water phase system, weigh 16.31g of potassium borate, add water to 480g to dissolve it, and set aside.

[0056] (3) Prepare the initiator phase, weigh 1.37g of potassium 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 80°C, and keep the stirring speed above 800 rpm, then add the evenly stirred oil phase into the three-necked flask until the emulsion becomes viscous Add 160g of the water phase to the flask dropwise, and finally add the initiator phase to the flask. After the polymerization reaction, pour the mixed solution into a large polytetrafluoro...

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Abstract

The invention discloses a water-absorption acrylate foam material and a preparation method and application thereof. The water-absorption acrylate foam material has certain toughness and has a tiny porous size; 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 are larger than 15g/g; the water retention rate within half an hour is over 80 percent; the water-absorption acrylate foam material is suitable for dispersion and storage of water-containing fluid, so that a block-type soft water absorption material disclosed by the invention is very suitable to be applied in the field of toilet articles.

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