According to the Xinhua news agency, San Francisco, San Francisco, December(reporter Ma Dan)Researchers have announced that they have invented a new process for making hydrogels from natural materials. The prepared hydrogels are cheap, safe and flexible, and can be used in food processing and fire extinguishing.

Every summer is the hottest time for hydrogel machines. The hot sales of cold applicators, antipyretic applicators and other products have laid the foundation for equipment sales. What kind of treatment does the hydrogel cold applicator use? How should it be handled?

To reduce local bleeding: cold hydrogel paste can make local blood vessels, blood slow down, increase the viscosity of the blood, is conducive to blood clotting to control bleeding. Applicable to the initial stage of local soft tissue injury.

All water-soluble or hydrophilic polymers can form hydrogels through certain chemical cross-linking or physical cross-linking. These macromolecules can be divided into natural and synthetic categories according to their sources. Natural hydrophilic polymers include polysaccharides (starch, cellulose, alginic acid, hyaluronic acid, chitosan, etc.)

Hydrogels have various classification methods. According to the bonding of hydrogel networks, they can be divided into physical gels and chemical gels. Physical gels are formed by physical forces such as electrostatic interactions, hydrogen bonding, chain twisting, etc.

As a highly water-absorbing and highly water-retentive material, hydrogels are widely used in various fields such as drought resistance in arid areas, masks in cosmetics, antipyretic patches, analgesic patches, agricultural films, and condensation prevention in buildings. Agents, humidity control agents