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High-water-absorbility foamed sponge and foaming process thereof

A technology of high water absorption and high water absorption resin, applied in the field of water-absorbing foam, can solve the problems of insufficient water absorption and water retention, and achieve the effects of low cost, reduced production cost and low energy consumption

Inactive Publication Date: 2017-03-15
东莞泰康泡绵有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, polyurethane foam is widely used in my country, but the water absorption and water retention of existing polyurethane foam are still not high enough, and it is easy to release the absorbed liquid, which is difficult to meet the needs of people in daily life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A superabsorbent foam, the superabsorbent foam is composed of component A and component B according to the ratio of 1.5:1, and the component A includes the following raw materials in parts by weight:

[0028] Surfactant 0.5 parts

[0029] 1 part water-absorbent resin

[0030] 40 parts of water;

[0031] The component B is a polyurethane prepolymer.

[0032] The surfactant is a nonionic surfactant, and the nonionic surfactant is fatty acid methyl ester ethoxylate, dodecyl-tetradecyl alcohol polyoxyethylene ether or twelve-tetradecyl secondary alcohol polyoxyethylene ether.

[0033] The water-absorbent resin is a super-absorbent resin, and the super-absorbent resin is a vinyl acetate copolymer.

[0034] The component A also includes 0.2 parts of an antibacterial agent, which is iodopropynyl butyl carbamate.

[0035] The component A also includes 20 parts of filler, and the filler is barium sulfate or calcium carbonate.

[0036] A foaming process of the above-mention...

Embodiment 2

[0044] The difference between this embodiment and above-mentioned embodiment 1 is:

[0045] A superabsorbent foam, the superabsorbent foam is composed of component A and component B according to the ratio of 2:1, and the component A includes the following raw materials in parts by weight:

[0046] Surfactant 1.5 parts

[0047] 3 parts water-absorbent resin

[0048] 50 parts of water;

[0049] The component B is a polyurethane prepolymer.

[0050] The surfactant is a nonionic surfactant, and the nonionic surfactant is secondary alcohol polyoxyethylene ether, octanol polyoxyethylene ether or fatty acid methyl ester polyoxyethylene ether.

[0051] The water-absorbent resin is a super-absorbent resin, and the super-absorbent resin is polyacrylonitrile hydrolyzate and polyoxyethylene copolymer.

[0052] The component A also includes 0.4 part of antibacterial agent, and the antibacterial agent is sodium benzoate.

[0053] The component A also includes 30 parts of filler, and th...

Embodiment 3

[0058] The difference between this embodiment and above-mentioned embodiment 1 is:

[0059] A superabsorbent foam, the superabsorbent foam is composed of component A and component B according to the ratio of 2.5:1, and the component A includes the following raw materials in parts by weight:

[0060] Surfactant 2.5 parts

[0061] 5 parts of water-absorbing resin

[0062] 60 parts of water;

[0063] The component B is a polyurethane prepolymer.

[0064] The surfactant is a nonionic surfactant, and the nonionic surfactant is alkylphenol polyoxyethylene ether, lauryl alcohol polyoxyethylene ether or isomeric tridecyl alcohol ether.

[0065] The water-absorbent resin is a super-absorbent resin, and the super-absorbent resin is a polyacrylic acid copolymer or a polyvinyl alcohol copolymer.

[0066] The component A also includes 0.6 part of antibacterial agent, and the antibacterial agent is galadan.

[0067] The component A also includes 40 parts of filler, and the filler is wo...

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PUM

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Abstract

The invention relates to the technical field of water-absorbing foamed sponge, in particular to high-water-absorbility foamed sponge and a foaming process thereof. The high-water-absorbility foamed sponge consists of a component A and a component B according to a ratio of (1.5-3.5):1, wherein the component A comprises the following raw materials in parts by weight: 0.5 to 5 parts of a surfactant, 1 to 10 parts of water-absorbing resin and 40 to 80 parts of water; and the component B is a polyurethane prepolymer. The foaming process of the high-water-absorbility foamed sponge comprises the following steps: preparing a foamed material, performing foaming reaction and performing drying treatment. The high-water-absorbility foamed sponge provided by the invention has significant water-absorbing and water-locking effects, is insusceptible to release, can absorb secreta on the surface of a human body, and has a wide application prospect in the fields of sweat-absorbing supplies, medical treatment, female sanitary napkin, baby diaper, shoe insoles and the like; and the foaming process is low in cost, little in pollution discharge in the production process and favorable for reducing the production cost and protecting the environment.

Description

technical field [0001] The invention relates to the technical field of water-absorbent foam, in particular to a highly water-absorbent foam and a foaming process thereof. Background technique [0002] Polyurethane is a new organic polymer material, known as the "fifth largest plastic", because of its excellent performance, it is widely used in automobile manufacturing, civil engineering, petrochemical, electromechanical, shipbuilding, medical treatment, agriculture and other departments, while polyurethane Soft foam materials are widely used in the production of various "foam" products. [0003] At present, polyurethane foam is widely used in my country, but the water absorption and water retention of existing polyurethane foam are still not high enough, and it is easy to release the absorbed liquid, which is difficult to meet the needs of people's daily life. Contents of the invention [0004] In order to overcome the shortcomings and deficiencies in the prior art, the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L33/00C08L29/04C08L71/02C08L33/02C08L33/20C08L31/04C08K13/02C08K3/34C08K3/22C08K3/30C08K3/26C08K3/36C08K3/40C08J9/00
CPCC08L75/04C08J9/00C08J2375/04C08J2433/00C08K2201/014C08L2203/14C08L2205/025C08L2205/03C08L2205/035C08L33/00C08L29/04C08L71/02C08L33/02C08L33/20C08L31/04C08K13/02C08K3/34C08K2003/2241C08K2003/3045C08K2003/265C08K3/36C08K3/346C08K3/40
Inventor 龙永杰
Owner 东莞泰康泡绵有限公司