Nanometer particles-containing cold accumulating material for cooling pad

Abstract

The invention discloses a nanometer particles-containing cold accumulating material for a cooling pad, containing 80-90% of sodium sulfafe decahydrate, 2-6% of halogenating salt or halogenating salt hydrate, 2-6% of supercooling-resisting agent, 1-3% of nanometer particles, 1-5% of thickener and the balance of de-ionized water according to weight percentage, wherein the sum of the weight percentage of the components is 100%. Because the nanometer particles are uniformly dispersed in the cold accumulating material containing thickener, the compressive strength of the cooling pad is increased; the crystal form of the sodium sulfafe decahydrate is improved and the mould-proofing and sterilizing function is realized. The cold accumulating material disclosed by the invention is white cotton fiber, has the advantages of low phase separation degree, exquisite hand feeling, environment protection and no toxicity, is easy to obtain raw materials and is easy to perform.

Description

technical field [0001] The invention belongs to the field of cold storage materials, in particular to a cold storage material for a cooling pad containing nanoparticles. Background technique [0002] With the improvement of people's living standards, the awareness of energy saving, low carbon and health is gradually increasing. The method of not using electricity can properly cool the human body for a long time in summer, which is healthy, environmentally friendly and comfortable. [0003] The cold storage material can keep the temperature approximately constant in the phase change temperature range, and use the latent heat of phase change to store energy, thereby controlling the temperature. [0004] At present, the quality of cooling pads on the market is uneven, and there are common problems such as easy caking, poor comfort, and easy mildew. CN1221014A discloses that the caking phenomenon can be improved by adding glycerin, but the grainy feeling is still obvious after t...

AI Technical Summary

Problems solved by technology

[0004] At present, the quality of cooling pads on the market is uneven, and there are common problems such as easy caking, poor comfort, and easy mildew. CN1221014A discloses that the caking phenomenon is improved by adding glycerin, but the grainy feeling is still obvious after the crystallization of sodium sulfate decahydrate, and the decay rate High; patents such as CN101760182A disclose that by adding sodium carboxymethyl cellulose, sodium sulfate decahydrate can be thickened and suspended, but there is still agglomeration, and the comfort is not good during use; there are reports abroad that use cross-linked The hydrogel is prepared from acrylic acid, the hydrogel is acidic, has poor salt resistance, is easy to mildew, and sodium sulfate is easy to precipitate on its surface and cause solid-liquid separation. In order to solve the above problems, a new technical solution is provided.