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The necessity of antifreeze additives connected to climate conditions in automotive is a non-changing fact. For decades two substances, ethane-1,2-diol and propane-1,2-diol, are dominating the market ...with all of their advantages and disadvantages. In this paper is presented new potential antifreeze additive from the same family of polyols with different structural formula of propane-1,3-diol. Though similar to propane-1,2-diol the position of hydroxyl groups at the ends of the carbon parent chain gives this substance some unique properties that are distinguishable from its predecessors. Important physical properties for use as an antifreeze additive in automotive and solar heat systems were measured in controlled conditions and compared to the current additives such as propane-1,2-diol. Propane-1,3-diol shows especially favourable values for viscosity in wide ranges of temperatures and dilutions which lowers the needs for pump power and subsequently energy demands on the systems, alongside the advantage of being completely produced from renewable sources.続きを見る
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