Sodium sulfate decahydrate is used as the main component, and the nucleating agent borax, water and ethylene glycol are added to form a cooling agent, which is filled in a pillowcase or a cushion, and can be made into a cool pillow and a cool cushion with excellent performance. The sodium sulphate dehydrated crystal water is anhydrous austenite, also known as Yuanming powder, which is the matrix component of the heat storage agent. Borax, a scientific name for sodium borate, acts as a nucleating agent in a cooling agent to promote the crystallization of sodium sulfate decahydrate and uniform formation of crystals. Ethylene glycol is an essential component of the cooling agent. In addition to being combined with borax, it can promote the crystallization of sodium sulfate decahydrate. It also makes the crystal of sodium sulfate decahydrate loose, soft and comfortable to contact with the human body. Deionized water is used as a heat transfer medium. It is indispensable for the cooling agent. The dissolved heat absorbed by sodium sulfate decahydrate causes the water to cool, which will cause the skin of the human body to feel cool. The formula (weight ratio) is: sodium sulfate decahydrate 360, borax 2, ethanol l, deionized water l6. Add water and borax to the jacketed mixer, stir and dissolve, add sodium sulfate decahydrate, pass the hot water or steam in the jacket, and heat the material in the mixer to above 33 °C, stirring constantly. After all the sodium sulfate decahydrate is dissolved, add ethylene glycol and stir well to obtain a heat storage agent. The l900 g of heat storage agent is filled in the pillowcase and the cushion made of soft sheet-like polyethylene material, and the seal is a cool pillowcase and a cool cushion.
When the cooling pillow is cooled to 32 ° C with tap water of 15 to 25 ° C, the heat storage agent starts to solidify, and when it is continuously cooled to 28 ° C, it becomes a semi-solidified body having fluidity. In this case, as a cool pillow, the time required for the temperature to rise to 32 ° C is 7 to 8 hours in summer and 14 to 16 hours in spring and autumn. Then use cold water to cool, you can use it repeatedly. This is a novel summer product that will be favored by consumers.
Source of information: Bedding net
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