Preparation method of rapid and high water-absorption non-woven cloth

Abstract

The invention discloses a preparation method of rapid and high water-absorption non-woven cloth, which comprises the following steps: preparing a hydrophilic monomer, a comonomer, an initiator, a cross-linking agent and distilled water into mixed grafting liquid by an ultraviolet irradiation initiation method; copolymerizing and cross-linking a water-absorbing resin layer with high water-absorbing capacity on a polyester non-woven cloth base body; and performing sodium hydroxide neutralization and ethanol dehydration to prepare rapid and high water-absorption non-woven cloth with a large amount of fluffy structures. The preparation method of the rapid and high water-absorption non-woven cloth has the advantages of easily available raw materials, low cost and simplicity in operation. Compared with the traditional high water-absorption resin, the rapid and high water-absorption non-woven cloth prepared by the method has higher water-absorbing speed, more stable morphological structure and higher practicability. Compared with the conventional high water-absorption fiber, the rapid and high water-absorption non-woven cloth prepared by the method has higher water-absorbing rate and can be widely applied in the fields of sanitation, air dehumidification and the like.

Description

technical field [0001] The invention belongs to the field of water-absorbing materials, and in particular relates to a method for preparing a fast and highly water-absorbing nonwoven fabric. Background technique [0002] Existing water-absorbing and moisture-absorbing materials, such as sponges, absorbent cotton, silica gel and starches, etc., although simple and easy to obtain and low in price, have the following disadvantages: 1. The water absorption speed is slow, and it usually takes several hours or even days to achieve water absorption. Saturated state; 2. Poor water absorption capacity, generally only absorbs water 20 to 40 times its own weight; 3. Low water retention rate. With the rapid development of social economy and the increase of human's fast-paced demand, these water-absorbing materials can no longer meet the needs of human beings. Therefore, it is inevitable for social development to develop water-absorbing materials with faster water absorption and better w...

AI Technical Summary

Problems solved by technology

[0002] Existing water-absorbing and moisture-absorbing materials, such as sponges, absorbent cotton, silica gel and starches, etc., although simple and easy to obtain and low in price, have the following disadvantages: 1. The water absorption speed is slow, and it usually takes several hours or even days to achieve water absorption. Saturated state; 2. Poor water absorption capacity, generally only absorbs water 20 to 40 times its own weight; 3. Low water retention rate

[0005] Superabsorbent resin is usually granular, with large water absorption capacity and good water retention performance. However, this type of water-absorbent resin absorbs water slowly and is not suitable for emergency rescue.

When preparing baby and hygiene products, it needs to be ground into a finer powder first, then fixed in a package of a certain shape, and finally sealed before use. poor performance

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