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Super absorbent resin with high antibacterial property and high salt tolerance as well as preparation method and application thereof

A super absorbent resin, antibacterial technology, used in absorbent pads, medical science, bandages, etc., can solve the problems of low salt resistance absorption performance and pressure resistance absorption rate, blocking liquid flow speed, and low water retention rate, etc. Performance and range of use, improved absorption performance, low-cost effect

Active Publication Date: 2018-01-09
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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  • Super absorbent resin with high antibacterial property and high salt tolerance as well as preparation method and application thereof
  • Super absorbent resin with high antibacterial property and high salt tolerance as well as preparation method and application thereof
  • Super absorbent resin with high antibacterial property and high salt tolerance as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The tea saponin intercalated graphene antibacterial composition in this embodiment is composed 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 group of the porous graphene oxide is carboxylated, and the pore diameter is 0.5-100 nm.

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

[0066] Step 1: Dissolve 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 well, then add graphene oxide to deionized water to make the concentration of graphene oxide 0.2mg / mL, and ultrasonically disperse for 30-240min to form graphite Olefin suspension.

[0068] Step...

Embodiment 2

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

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

[0074] Step 1: Dissolve 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 dodecyl sulfonate into deionized water and stir evenly, then add graphene oxide to deionized water so that the concentration of graphene oxide is 20mg / mL, and ultrasonically disperse for 30-240min to form graphite Olefin suspens...

Embodiment 3

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

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

[0082] Step 1: Dissolve 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 dodecylbenzene sulfonate into deionized water and stir it evenly, then add graphene oxide to deionized water so that the concentration of graphene oxide is 10mg / mL, and ultrasonically disperse for 30-240min. Graphene s...

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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 super absorbent resins, and particularly relates to a super absorbent resin with high antibacterial properties and high salt resistance, a preparation method and applications thereof. Background technique [0002] Super absorbent polymer (SAP) is a general term for high-molecular polymers with high water absorption and water retention properties. In foreign countries, in the early 1950s, the American Goodrich Company developed cross-linked polyacrylic acid resins. Then Russell and others from the Northern Research Center of the US Department of Agriculture began to study the grafting technology of starch and acrylonitrile in 1961; by 1978, Sanyo, Japan Huacheng Company developed and industrialized production of starch grafted polyacrylic acid copolymer type super absorbent resin. In China, research on super absorbent resins started in the early 1980s. Due to objective factors such as late start and ...

Claims

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Application Information

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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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