2020年11月5日 · The as-prepared PUGs from the reaction of MDI and cyclohexylamine/p-toluidine exhibit the optimum physicochemical and friction-wear properties, confirming that the …

Polyurea grease (PUG) is a potential grease that accounts for a large proportion of the high-end grease market. Compared to other greases, PUG has advantages such as...

ct - The concept and use of pre-form polyurea grease thickener (PUGT) is not new and has been sought for in the industry for d. cades. However, it has met with failures and commercial …

Physicochemical properties of PUG with different organic amines. [...] Thickener formulation plays a significant role in the performance characteristics of grease. The polyurea greases (PUGs)...

By varying the types of amines, from primary to secondary, aliphatic to aryl, mono amine to poly amine, and from amines to alcohols (see Table 2), a variety of powder can be produced, tuned …

2024年5月20日 · Amine-PEG-Amine的反应机理主要涉及以下两个方面： 1.偶联反应：利用两端的氨基，Amine-PEG-Amine可以与带有羧基（-COOH）、醛基或其他反应性基团的分子进行偶 …

Amines are molecules that contain carbon-nitrogen bonds. The nitrogen atom in an amine has a lone pair of electrons and three bonds to other atoms, either carbon or hydrogen. Various …

2016年3月14日 · Here are 20 of the best anime dogs in existence! Maru, also known as Pedro Martinez, is a cute stray dog which Sawako and Kazehaya found on their way to school. …

Learn to name compounds systematically, identify functional groups, and communicate molecular structures effectively. Get the most by viewing this topic in your current grade. Pick your …

2023年7月13日 · He is a miniature pug and the smallest of Kakashi Hatake’s ninken. He has brown fur, a dark snout, dark ears and pink paws. The feature to recognize him is the outfit of …