Oxidation resistance is another critical performance characteristic of thermal conductive fluids. In open systems or systems without nitrogen blanketing in expansion tanks, the interface between the oil and air will undergo oxidation reactions. Generally, when the temperature exceeds 60°C, oxidation occurs upon contact with air, leading to the gradual formation of gums and sediments. These substances adhere to the surfaces of heaters and pipelines, causing carbon deposits. Additionally, the acidic substances produced by oxidation reactions can corrode equipment, leading to leaks. The L-Q series thermal conductive fluids are formulated with superior base oils and high-temperature antioxidants and anti-scaling additives, which can inhibit the rate of sludge formation and the tendency to deposit or scale, maintaining excellent heat transfer efficiency of the system.
Alkylbenzene (benzene ring) thermal oil is a compound with benzene rings attached to alkyl side chains, specifically short-chain alkyl (including methyl, ethyl, isopropyl) groups bonded to the benzene ring. It has a boiling point of 170~180°C and a freezing point below -80°C, making it suitable for use as an antifreeze. The characteristic of this product is that it is less prone to precipitation within its applicable range, with isopropyl side-chain compounds being particularly excellent.
Alkyl naphthalene thermal oils are compounds with alkyl side chains attached to a benzene ring. The attached side chains typically include methyl, dimethyl, isopropyl, etc., with the type and number of side chains determining the compound's properties. Alkyl naphthalene with a side chain single to methyl is used in gas phase heating systems within the 240~280℃ range.
Alkyl biphenyl thermal oils are compounds connected to the biphenyl ring with alkyl side chains. They are formed by combining short-chain alkyls (ethyl, isopropyl) with the biphenyl ring, with the type and quantity of alkyls determining their properties. The more alkyl groups, the poorer the thermal stability. Among this type of product, thermal oils synthesized from isopropyl para- and meta-isomers (isomers) with biphenyl have a boiling point >330°C and good thermal stability, making them an ideal product for use in the temperature range of 300~340°C.
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