1. Modified glycerol cooling liquid is a mixture of glycerol and other additives, which may include preservatives, antioxidants, defoamers, etc. Polyol is a kind of compound with multiple hydroxyl functional groups, such as ethylene glycol and propylene glycol. The former has more components and types.
2. The modified glycerol coolant has certain corrosion resistance, which can effectively protect the internal equipment of the system from corrosion; However, polyols need to add some antioxidants and preservatives to improve their corrosion resistance and anticorrosion performance. In contrast, the former is more convenient to use.