Water-absorbing resin composite with durable deodorization effect and preparation method thereof

Abstract

The invention discloses a water-absorbing resin composite with a durable deodorization effect and a preparation method thereof. The water-absorbing resin composite comprises water-absorbing resin and a microcapsule mixed in the water-absorbing resin and formed by sequentially wrapping an outer layer, an inner layer and a capsule core, wherein the outer layer is a water-soluble material, the inner layer is a porous water-insoluble material, and the capsule core is an aromatic substance. The microcapsule had two layers of capsule walls, the inner layer is a porous capsule wall insoluble in aqueous liquid, and the inner layer is a capsule wall soluble in water easily. When the microcapsule with two layers of capsule walls does not contact with liquid and other aqueous liquid, the microcapsule does not release aromatic odor, has good storage performance; and when the microcapsule contacts with the aqueous liquid, a water-soluble film on the outer side of the two-layer microcapsule is dissolved in the aqueous liquid, the aromatic odor owned processed by the capsule core substance in the microcapsule is slowly released through the inner-layer water-insoluble porous capsule wall. Therefore the water-absorbing resin composite can shelter stink durably and remove peculiar smell.

Description

technical field [0001] The present invention relates to a water-absorbent resin composition and a preparation method thereof, more particularly, the present invention relates to a preparation method of a water-absorbent resin composition having a particularly long-lasting deodorizing (odor) effect when used in an absorbent body of a hygienic material . Background technique [0002] In recent years, water-absorbent resins have been widely used as one of the main constituent materials in sanitary materials such as disposable diapers, sanitary napkins, and incontinence pads due to their excellent ability to absorb body fluids (urine or blood). [0003] Conventionally, the water-absorbing properties required for the above-mentioned water-absorbent resins refer to high water absorption capacity, excellent absorption speed, liquid permeability and high gel strength when in contact with aqueous liquids such as body fluids. For hygienic materials such as disposable diapers and sani...

AI Technical Summary

Problems solved by technology

The above-mentioned method of improving the deodorization of the water-absorbent resin sometimes cannot exert a sufficient effect in actual use, such as adding deodorizing substances or activated carbon, zeolite, etc. ) has deodorizing ability, but for solid excrement, due to the structural limitation of sanitary materials, it cannot be in contact with water-absorbing resin, so it cannot play a deodorizing effect

Although the addition of some aromatic substances can improve the deodorizing effect of the water-absorbent resin on solid excreta, etc., but due to the high volatility of the aromatic substances, the deodorizing effect cannot last long.

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