Hydrophilic soft sponge, and preparation method and application thereof

A hydrophilic and soft technology, applied in applications, medical science, absorbent pads, etc., can solve the problems of slow absorption speed, insufficient softness and resilience, and achieve fast water absorption, improved hydrophilicity, and water absorption rate. high effect

Active Publication Date: 2018-07-06
FUJIAN HENGAN HYGIENE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of hydrophilic soft sponge for the slow absorption rate caused by the lack of hydrophilicity in the existing existing hydrophilic sponge, and the technical problems of insufficie

Method used

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  • Hydrophilic soft sponge, and preparation method and application thereof
  • Hydrophilic soft sponge, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The hydrophilic soft sponge in this embodiment is made of the following raw materials in parts by weight: 10.9 parts of DEP-505S, 9.1 parts of general-purpose polyether polyol, 10 parts of toluene diisocyanate, 5 parts of dichloromethane, 0.5 parts of silicone oil, 0.1 part of methyl ethanolamine, 0.1 part of stannous octoate, 5 parts of cellulose, 1 part of superabsorbent resin, and 1.5 parts of deionized water. Wherein, the superabsorbent resin is a polyacrylic superabsorbent resin with a particle diameter of 200-410 μm.

[0035] The preparation method of the present embodiment hydrophilic soft sponge comprises the steps:

[0036] S1. Weigh each raw material in parts by weight.

[0037] S2. Put DEP-505S, general-purpose polyether polyol, cellulose, superabsorbent resin and deionized water into the storage tank, set a constant material temperature of 20-23°C, and continuously stir at a speed of 15r / min for 60min. Material A is obtained.

[0038] S3. Mix toluene diis...

Embodiment 2

[0042] The hydrophilic soft sponge in this example is made of the following raw materials in parts by weight: 36 parts of DEP-505S, 24 parts of general-purpose polyether polyol, 40 parts of toluene diisocyanate, 15 parts of methylene chloride, and 1.5 parts of silicone oil , 0.5 parts of dimethylethanolamine, 0.5 parts of stannous octoate, 15 parts of cellulose, 20 parts of superabsorbent resin, and 3 parts of deionized water. Wherein, the superabsorbent resin is a polyacrylic superabsorbent resin with a particle diameter of 200-410 μm.

[0043] The preparation method of the present embodiment hydrophilic soft sponge comprises the steps:

[0044] S1. Weigh each raw material in parts by weight.

[0045] S2. Put DEP-505S, general-purpose polyether polyol, cellulose, superabsorbent resin and deionized water into the storage tank, set a constant material temperature of 20-23°C, and continuously stir at a speed of 120r / min for 10min. Material A is obtained.

[0046] S3. Mix tolu...

Embodiment 3

[0050] The hydrophilic soft sponge in this example is made of the following raw materials in parts by weight: 27 parts of DEP-505S, 15 parts of general-purpose polyether polyol, 20 parts of toluene diisocyanate, 10 parts of methylene chloride, and 1.0 part of silicone oil , 0.8 parts of dimethylethanolamine, 0.2 parts of stannous octoate, 10 parts of cellulose, 10 parts of superabsorbent resin, and 2 parts of deionized water. Wherein, the superabsorbent resin is a polyacrylic superabsorbent resin with a particle diameter of 200-410 μm.

[0051] The preparation method of the present embodiment hydrophilic soft sponge comprises the steps:

[0052] S1. Weigh each raw material in parts by weight.

[0053] S2. Put DEP-505S, general-purpose polyether polyol, cellulose, superabsorbent resin and deionized water into the storage tank, set a constant material temperature of 20-23°C, and continuously stir at a speed of 50r / min for 30min. Material A is obtained.

[0054] S3. Mix toluen...

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Abstract

The invention provides a hydrophilic soft sponge, and relates to the technical field of polymer materials. The hydrophilic soft sponge has a developed and interconnected pore structure and a polyurethane framework structure connecting the pore structure, and high-water-absorbent resin is combined in the polyurethane framework structure. The hydrophilic soft sponge is prepared from the following raw materials: polyether polyol, toluene diisocyanate, dichloromethane, silicone oil, water, dimethethanolamine, stannous octoate, cellulose, super absorbent polymer (SAP) resin, porous adsorption powder subjected to surface coupling coating treatment, and a non-ionic surfactant. The hydrophilic soft sponge provided by the invention has the characteristics of softness, slow rebound, high water absorption ratio, high water absorption speed and high water retention rate; the water absorption capacity is high; and when the hydrophilic soft sponge is impacted by an external force, dehydration does not occur easily, and the water retention is good.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a hydrophilic soft sponge and its preparation method and application. Background technique [0002] With the improvement of people's living standards and the development of sanitary material technology, disposable sanitary products have been widely used in maternal and child care. The disposable sanitary products include sanitary napkins, paper diapers, sanitary pads and other products. The common feature of these products is that they all have three main functional layers, namely, the surface layer that can penetrate body fluids, and the absorption layer that has the ability to absorb and store body fluids. Core layer and bottom layer that prevents the leakage of body fluids. Among them, the surface layer is generally non-woven fabric or perforated film material, the bottom layer is polyethylene film or a composite material of polyethylene film and non-woven fabric, a...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/48C08G18/62C08G18/64C08J9/08C08K9/10C08K7/26A61F13/53A61F13/15C08G101/00
CPCA61F13/15203A61F13/15577A61F13/53C08G18/4063C08G18/4081C08G18/4804C08G18/485C08G18/625C08G18/6484C08G18/7614C08K7/26C08K9/10C08K2201/003C08K2201/006A61F2013/530649A61F2013/530481A61F2013/1556
Inventor 祝二斌翁文伟吴晓彪罗梅芳戴飞
Owner FUJIAN HENGAN HYGIENE MATERIAL
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