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Alfa-7008 high temperature amine antioxidant

ALFA 7008 is a highly efficient amine antioxidant and an excellent high-temperature amine antioxidant for synthetic polyester lubricants. Under high temperature conditions, ALFA 7008 can overcome the shortcomings of traditional amine antioxidants and significantly reduce the formation of deposits and sludge in lubricating oils. ALFA 7008 also has extremely low volatility.

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Material Chemistry

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Product introduction

Physical/chemical data

Appearance	Viscous liquid
Color	Dark brown
Flash point℃,COC	>254
Viscosity，100 ℃，mm²/s	128.00
Nitrogen content,%	1.91

Antioxidant properties

*Using the US federal test method FTM5308.7 to evaluate the antioxidant properties of antioxidants. The base oil is pentaerythritol tetranonyl ester, with 2% tricresyl phosphate (antiwear agent) and 0.05% benzotriazole (corrosion inhibitor) added. The added amounts of additives Alfa 7008, ALFA 7001 and ALFA 7007 are calculated based on their active ingredients to facilitate comparison. In actual products, they all contain 50% active ingredient (dissolved in base solvent). The results of the oxidation experiment are shown in Table 1 and Table 2.

Table 1. High temperature oxidation experiment results
（FTM 5308.7，204℃，Fe，Ag，Al，Mg，Cu）
	Increased viscosity	Increased acid value
	％	mg KOH/g
1% DW 7007 + 1% DW 7001	13.8	1.9
2% DW 7007	97.8	2.3
2% DW 7001	11.4	1.3
2% (DW 7001)n	2.5	2.5
2% DW 7008	0.5	1

Table 2. High temperature oxidation experiment results
（FTM 5308.7，218℃，Fe，Ag，Al，2Ti）
	Viscosity increase %	Increased acid value
		mg KOH/g
1% DW 7007 + 1% DW 7001	88.4	4.5
2% DW 7007	113	3.8
2% DW 7001	37.5	2.7
2% (DW 7001)n	28.9	2.4
2% DW 7008	7.9	1.5

It can be seen from the experimental results that ALFA 7008 is an excellent antioxidant additive than ALFA 7001 and ALFA 7007, and ALFA 7008 has better performance than ALFA 7001 and ALFA 7007.

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