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Superabsorbent resin with high pressure absorption and high water retention, preparation method and application

A super absorbent resin, deionized water technology, applied in absorbent pads, bandages, medical science and other directions, can solve the problems of low salt-resistant absorption performance and pressure-resistant absorption rate, blocking liquid flow speed, and low gel strength, etc. Achieve the effect of improving performance and use range, improving absorption performance, and safe antibacterial effect

Active Publication Date: 2019-12-20
浙江卫星新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] The purpose of the present invention is to aim at the deficiencies and defects of the present inorganic antibacterial agents and organic antibacterial agents, and to provide a composite antibacterial agent formed by intercalating graphene oxide with natural organic matter tea saponin. Effectiveness, broad spectrum and other advantages, while providing a superabsorbent resin compounded with tea saponin intercalated graphene oxide antibacterial composition, the superabsorbent resin not only has excellent, safe and fast-acting, slow-release and long-acting antibacterial properties , and has high pressure absorption performance, high water retention and high salt resistance absorption performance, and solves the problem of low salt resistance absorption performance and pressure resistance absorption ratio of existing superabsorbent resins, low water retention ratio, and low gel strength after absorbing urine. The technical problem of colloid blockage (slow flow rate) caused by colloid collapse

Method used

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  • Superabsorbent resin with high pressure absorption and high water retention, preparation method and application
  • Superabsorbent resin with high pressure absorption and high water retention, preparation method and application

Examples

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Effect test

Embodiment 1

[0063] The tea saponin intercalated graphene antibacterial composition described in this embodiment consists of the following parts by weight: 5 g of tea saponin, 10 g of graphene oxide, and 0.01 g of sodium lauryl sulfate. Wherein, the purity of the tea saponin is 75%.

[0064] The graphene oxide is porous graphene oxide, and the polar oxygen-containing functional groups of the porous graphene oxide are carboxylated, and the pore diameter is 0.5-100 nm.

[0065] The tea saponin intercalated graphene antibacterial composition described in the present embodiment is made by the following steps:

[0066] Step 1: dissolving an appropriate amount of tea saponin in deionized water to form a tea saponin solution with a mass concentration of 5%.

[0067] Step 2: Add sodium lauryl sulfate in deionized water and stir evenly, then add graphene oxide into deionized water so that the concentration of graphene oxide is 0.2mg / mL, ultrasonically disperse for 30-240min to form graphite Alken...

Embodiment 2

[0072] The tea saponin intercalated graphene antibacterial composition described in this embodiment consists of the following parts by weight: 45 g of tea saponin, 50 g of graphene oxide, and 2 g of sodium dodecylsulfonate. Wherein, the purity of the tea saponin is 85%. The graphene oxide is selected from porous graphene oxide, and the polar oxygen-containing functional groups of the porous graphene oxide are carboxylated, and the pore diameter is 0.5-100 nm.

[0073] The tea saponin intercalated graphene antibacterial composition described in the present embodiment is made by the following steps:

[0074] Step 1: dissolving an appropriate amount of tea saponin in deionized water to form a tea saponin solution with a mass concentration of 20%.

[0075] Step 2: Add sodium dodecylsulfonate into deionized water, and stir evenly, then add graphene oxide into deionized water so that the concentration of graphene oxide is 20mg / mL, ultrasonically disperse for 30-240min to form graph...

Embodiment 3

[0080] The tea saponin intercalated graphene antibacterial composition described in this embodiment consists of the following parts by weight: 25 g of tea saponin, 30 g of graphene oxide, and 1.0 g of sodium dodecylbenzenesulfonate. Wherein, the purity of the tea saponin is 80%. The graphene oxide is selected from porous graphene oxide, and the polar oxygen-containing functional groups of the porous graphene oxide are carboxylated, and the pore diameter is 0.5-100 nm.

[0081] The tea saponin intercalated graphene antibacterial composition described in the present embodiment is made by the following steps:

[0082] Step 1: dissolving an appropriate amount of tea saponin in deionized water to form a tea saponin solution with a mass concentration of 12%.

[0083] Step 2: Add sodium dodecylbenzenesulfonate to deionized water and stir evenly, then add graphene oxide to deionized water so that the concentration of graphene oxide is 10mg / mL, and ultrasonically disperse for 30-240mi...

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Abstract

The invention relates to super absorbent resin with high antibacterial property and high salt tolerance. The super absorbent resin is prepared from the following raw materials in parts by weight: 100parts of acrylic acid, 35-45 parts of a basic compound, 0.06-1.8 parts of a primary crosslinking agent, 0.05-2 parts of an initiator, 0.3-4 parts of a compound crosslinking agent and 0.01-10 parts ofa tea saponin intercalation graphene antibacterial composition. A preparation method of the super absorbent resin comprises the following steps: in a mixed solution of acrylic / acrylate formed by diluting with deionized water and neutralizing an acrylic monomer solution with basic compound, adding the primary crosslinking agent, uniformly stirring, then adding 0-45% of tea saponin intercalation graphene antibacterial composition, carrying out ultrasonic dispersion for 30-240 minutes, then heating to the temperature of 35-70 DEG C, adding the initiator, carrying out polymerization to form colloidal super absorbent resin, sequentially carrying out pelletizing and drying, and carrying out surface treatment at the temperature of 110-180 DEG C by adopting a mixed crosslinking agent, so that thesuper absorbent resin is obtained.

Description

technical field [0001] The invention belongs to the research field of functional superabsorbent resin, and in particular relates to a superabsorbent resin with high antibacterial property and high salt tolerance, a preparation method and application thereof. Background technique [0002] Super absorbent polymer (SAP) is a general term for polymers with high water absorption and water retention properties. In foreign countries, in the early 1950s, Goodrich Corporation of the United States developed cross-linked polyacrylic acid resins, and then Russell et al., the Northern Research Center of the United States Department of Agriculture, began to study the grafting technology of starch and acrylonitrile in 1961; by 1978, Sanyo, Japan Chemical Industry Co., Ltd. develops and industrializes the production of starch-grafted polyacrylic acid copolymerized superabsorbent resin. In China, the research on superabsorbent resin started in the early 1980s. Due to objective factors such ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/02C08F120/06C08F220/06C08K9/04C08K7/24A61L15/24A61L15/18A61L15/20A61L15/42A61L15/46A61L15/60
Inventor 洪锡全裴小苏周丕严刘若铎
Owner 浙江卫星新材料科技有限公司
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