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妥尔油脂肪酸和精制妥尔油在生产切削液里有什么区别?特别着急 二聚酸在切削液中作用

2021-04-09知识0

以下三段寻求高手帮助翻译,先万分谢谢了 This product from vegetable oil and oil soap with latest separation feet and pure arantius technology,high purity of industrial 18 carbonate,colour and lustre is shallow,applicable to the production of the molecular structure of certain fatty acids,dimer acid and polyamide tree,as production surfactant intermediates-fatty acid amine derivatives and ethyl acetate materials which,Also available as oil Wells and corrosion inhibitor,mineral flotation agents etc,the capture of textile,dyeing auxiliaries are indispensable materials.The rest are in conformity with the standards of stearic acid level.This oil and oil refined by soap feet of products,which arantius as stearic acid applied in manufacturing plastic plasticizer,lubricant,stabilizing agent,etc.Rubber plasticizer,lubricants,textile and dyeing industry used in the manufacture of finishing agent,lubricant,and in the leather industry,softener,etc.Used in manufacturing softener,and treatment in cosmetic,also can serve as 。

金属切削液的作用有哪些? 金属切削液在金属切削、磨削加工过程中具有相当重要的作用。实践证明,选用合适的金属切削液,能降低切削温度60~150℃,降低表面粗糙度,1~2级,减少切削阻力15~30%,成倍。

红外光谱为什么要采用特殊的制样方法谢谢了,大神帮忙啊 红外光谱在聚合物32313133353236313431303231363533e78988e69d8331333335313865分析和鉴定中有着极为重要而又非常广泛的应用。聚合物红外光谱分析中非常关键的一步是样品的制备,红外光谱的质量在很大程度上取决于制样方法。聚合物的一般制样方法有以下四种[1]:(1)浇铸薄膜法,是在一定条件下将聚合物溶解于适当的溶剂中,然后将样品溶液滴在适当的载体上,挥发掉溶剂,将膜取下,制得样品膜。这是一种最常用的制样技术,但此法揭膜困难,而且还可能由于铸膜引起分子取向和晶形的改变。若是在盐窗上成膜,虽可直接用于测定,但盐窗比较昂贵,稍微使用不当就容易破裂;(2)热压薄膜法,是将样品放在模具中加热到软化点以上或熔融后再加压力压成厚度合适的薄膜。由于此法要求在一定的热压装置和较高的温度条件下进行,在制样过程种,某些聚合物会因受热而氧化,或者在加压时产生定向,从而使光谱发生某些变化;(3)KBr压片法,是将高聚物样品研细后和KBr粉末混研,待样品与KBr混合均匀,装入模具内放在油压机上加压,使成为透明的晶片。但多数高聚物难于直接研成很细的粉末,因此难于制作KBr晶片;(4)切片法,用于不能采用溶解、熔融或加压等手段改变其物理状态的高聚物。

#二聚酸在切削液中作用

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