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Preparation method of high water absorption composite body

A superabsorbent and composite technology, applied in fiber types, textiles and papermaking, ultrasonic/sonic fiber treatment, etc., can solve the problems affecting the softness and water absorption of superabsorbent composites, particle size and uneven distribution, and reaction conditions Difficult to control and other problems, to achieve the effect of controllable particle size, small specific surface area and fast reaction speed

Inactive Publication Date: 2017-10-13
FUJIAN HENGAN HLDG CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reaction conditions for synthesizing superabsorbent resins on substrates are difficult to control, which often leads to high residual monomers, uneven particle size and distribution, and thus affects the softness and water absorption performance of superabsorbent composites.

Method used

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  • Preparation method of high water absorption composite body

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Experimental program
Comparison scheme
Effect test

Embodiment

[0022] 1. Add 18g / m 2 The ES fiber air-through non-woven fabric is subjected to plasma etching treatment to generate defective active catalytic sites;

[0023] 2. For the polymerization solution (sodium hydroxide is used to neutralize acrylic acid, the neutralization degree is 75%, the monomer concentration is 50% (weight), 0.05% N, N`-methylenebisacrylamide crosslinking agent, 0.2 % potassium persulfate initiator) ultrasonic spray to make it adhere to the surface of the fiber, the diameter of the mist particle is 0.4-0.6mm, control the spray volume to achieve the target requirement of the square gram weight of the superabsorbent complex;

[0024] 3. Using microwave heating, the reaction temperature is 85 o C, the reaction time is 15s, and the superabsorbent resin gel attached to the surface of the fiber is prepared by polymerization and crosslinking reaction, and the drying temperature is 110 oC , the drying time is 120s, and the superabsorbent resin particles attached to...

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Abstract

The present invention discloses a preparation method of a high water absorption composite body. The preparation method comprises: carrying out plasma etching treatment on an ES fiber hot air nonwoven fabric to produce a defective active catalytic site, adhering a high water absorption polymerization liquid to the ES fibers in an ultrasonic spraying manner, and carrying out in situ polymerization cross-linking on the surface of the hot air nonwoven fabric in a microwave reaction heating manner to form high water absorption resin particles so as to prepare the high water absorption composite body. The high water absorption composite body of the present invention is mainly used in paper diaper, sanitary napkin, products for incontinence, pet urine pads, and other absorption core bodies.

Description

technical field [0001] The invention relates to a method for preparing superabsorbent composites by in-situ polymerization and cross-linking superabsorbent resin particles on ES fiber non-woven fabrics with a superabsorbent polymer solution. The superabsorbent composites are mainly used in diapers, Absorbent cores for sanitary napkins, incontinence products, pet pee pads, etc. Background technique [0002] Superabsorbent resin particles (SAP) have been widely used in absorbent cores such as diapers, sanitary napkins, incontinence products, and pet urine pads. The superabsorbent resin is in a powder state and is used for the absorbent core. It must be mixed with fluff pulp to fix it, but it is often difficult to fix it firmly, because the gel state superabsorbent resin often moves under external force conditions. , resulting in the occurrence of the absorbent core interruption phenomenon. Therefore, it is necessary to develop a superabsorbent composite capable of firmly fix...

Claims

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Application Information

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IPC IPC(8): D06M10/02D06M15/263D06M15/285C08F220/06C08F222/38D06M101/20
CPCC08F220/06D06M10/025D06M15/263D06M15/285D06M2101/20C08F222/385
Inventor 吴晓彪祝二斌张富山王伟
Owner FUJIAN HENGAN HLDG CO LTD
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