试验表明：活性硫改善了齿轮油的极压性，对抑制铜腐蚀性、防锈性能和抗氧化性能均有不利的影响。
It is concluded that active sulfur compounds may improve the oil's EP property but harm inhibition of copper corrosion, antirust property and anti-oxidation stability.
经降解得到的羧甲基壳聚糖均具有一定的羟基自由基清除活性，且分子量越小，其抗氧化性能越强。
All degraded carboxymethyl chitosans show certain hydroxyl radical scavenging activity, but the antioxidant activity is stronger at lower molecular weight.
应用推荐