Papers by Keyword: Detergency

Abstract: Qualified gasoline additive could improve the vehicle emission, fuel economy and deposits in engine. However, some people consider that additive plays a little role in the gasoline, for the quality of additives is still quite uneven on the market. This paper researched the influence of additives on complete-vehicle emission by adding 10 different market additives into gasoline, respectivly. Then one qualified additive was chosen and blended into base oil to do road running test with driving 1.2 × 104 km on a light-duty vehicle. The results show that vehicle emissions could decreased 15% averagely and deposits in engine can be cleaned obviously with qualified additive.

Abstract: Through the analysis on the type of deposition of dirt which is produced from the beer, beverage and dairy production devices. And through the discussion on physicochemical analysis and the principle of cleaning, the test of inorganic dirt cleaning and organic dirt cleaning was conducted. The formula for cleaning was optimized at the same time. From the results of the test, it suggested that it is possible for the single-phase CIP acidic cleaning agent and the developed CIP cleaning process to replace the traditional five-step CIP cleaning process.

Abstract: There are few water-based fluids, on the market, designed specifically for grinding and abrasive machining processes. Fluid manufacturers, caught up in serving the “non-cutting” functions, have neglected the prime reasons for using a grinding fluid. This paper begins to assess water-based fluid chemistries and observe the cause and effect relationship with respect to grinding power and wheel life. The end result will be not only be a next generation grinding fluid, but also a better understanding of the role of the grinding fluid in a grinding or abrasive machining operation.

Abstract: Detergency process of oily soil removal from fabrics is of interest and the mechanisms of oily soil removal are very complicated involving several factors: interfacial tension, oil loading and surfactant adsorption. In this study, the effects of oil loading and the surfactant adsorption on the detergency performance of oily soil removal were investigated. Mixed surfactant systems of branched alcohol propoxylate sulfate sodium salt (Alfoterra 145-3PO), an extended anionic surfactant, and secondary alcohol ethoxylate (Tergitol 15-S-5), a nonionic surfactant, were used to form microemulsions with motor oil. The CMC and CµC values of the mixed surfactants were 0.015 and 0.04 % total active mixed surfactants concentration, respectively. A polyester/cotton blend [65/35] was selected to use as a testing fabric in detergency experiments. The results showed that the oil loading and fabric weight did not affect the efficiency of oil removal. Furthermore, with the selected formulation (0.1 wt.% Alfoterra 145-3PO and 5 wt.% Tergitol 15-S-5), the oil detachment time was investigated at different temperatures (30-50°C) and different total surfactant concentrations (0.04-0.5 %). The results showed that increasing temperature and surfactant concentration were found to decrease the oil detachment time, leading to increasing oil removal.