本文選題：復合鈦基潤滑脂 + 摩擦�。� 參考：《哈爾濱工業(yè)大學》2012年碩士論文

【摘要】：復合鈦基潤滑脂是一種新型的高性能復合皂基脂，擁有許多傳統(tǒng)潤滑脂不具備的優(yōu)異性能，應用前景十分廣泛。然而，在復合鈦基潤滑脂產(chǎn)品化研究中，還存在析油、硬化儲存不穩(wěn)定等問題需要解決。制備具有特殊性能的高端潤滑脂一直是潤滑脂研發(fā)的目標之一，近年來，出現(xiàn)了一種可以賦予潤滑劑自修復功能的羥基硅酸鹽自修復劑，在潤滑油中已得到應用，在潤滑脂中效果尚未見報道，因此，研發(fā)一種具有自修復功能的復合鈦基潤滑脂，擴大其應用領(lǐng)域具有重要意義。 本文搭建了實驗室用復合鈦基潤滑脂制備裝置，從優(yōu)化復合鈦基潤滑脂的配方與工藝入手，研究了原料比例和添加順序?qū)櫥阅艿挠绊�，分別利用掃描電鏡和透射電鏡觀測了復合鈦皂皂纖維形態(tài)，揭示出其皂纖維呈現(xiàn)空間網(wǎng)狀團絮結(jié)構(gòu)特征，進一步從復合鈦基脂膠體結(jié)構(gòu)出發(fā)，建立了復合鈦基脂結(jié)構(gòu)模型，研究了影響鈦基脂析油和表面硬化的因素，探索了提高復合鈦基脂儲存安定性的途徑。采用紅外能譜和質(zhì)譜等方法，分析了鈦基脂制備各階段的產(chǎn)物，確定出在最高煉制溫度階段反應物形成了Ti-O-Ti橋的新締合，揭示出復合鈦基脂的成脂機理。利用四球摩擦試驗機和潤滑脂性能測定儀，研究了潤滑脂的理化和摩擦學性能，結(jié)果表明，本文所研制的復合鈦基脂具有較高的滴點，較好的剪切安定性和抗水淋性，以及較佳的減摩抗磨性能。在此基礎上，提出了自修復鈦基潤滑脂的制備工藝，，測試了含羥基硅酸鹽的鈦基脂的理化性能，研究了工作時間、工作載荷、以及羥基硅酸鹽自修復劑的用量對復合鈦基脂自修復性能的影響，初步制備出一種具有自修復功能的復合鈦基潤滑脂。利用四球摩擦試驗機與M-200磨損試驗機，研究了含羥基硅酸鹽自修復劑對鈦基潤滑脂自修復特性的影響，建立了自修復鈦基脂潤滑模型，探討了其摩擦磨損自修復機理。 本文初步得出了實驗室制備自修復鈦基潤滑脂的配方與工藝，為研究潤滑脂的自修復性能提供了借鑒，為自修復鈦基潤滑脂的工業(yè)制備提供了指導。
[Abstract]:Complex titanium base grease is a new type of high performance composite soap base grease, which has many excellent properties that traditional grease does not have, and has a wide application prospect. However, in the study of the production of complex titanium base grease, there are still some problems such as oil evolution and instability of hardened storage. The preparation of high-end lubricating greases with special properties has been one of the targets of the research and development of lubricating greases. In recent years, a hydroxy silicate self-repairing agent, which can endow lubricant with self-repairing function, has been applied in lubricating oils. The effect in grease has not been reported yet, so it is of great significance to develop a kind of complex titanium base grease with self-repairing function and expand its application field. In this paper, a laboratory equipment for the preparation of complex titanium grease was set up. The effects of raw material ratio and addition sequence on the performance of the grease were studied by optimizing the formula and process of the complex titanium base grease. The morphology of composite titanium soap fiber was observed by scanning electron microscope and transmission electron microscope, which revealed that the soap fiber presented the structure characteristics of space netted flocs, and further established the structure model of composite titanium base lipid from the colloidal structure of composite titanium base lipid. The factors affecting oil evolution and surface hardening of titanium base lipids were studied and the ways to improve the storage stability of composite titanium base lipids were explored. The products of each stage of titanium base lipid preparation were analyzed by means of infrared spectrum and mass spectrometry. The new association of reactants formed by Ti-O-Ti bridge at the highest refining temperature was determined, and the fat-forming mechanism of composite titanium base lipid was revealed. The physicochemical and tribological properties of lubricating grease were studied by using four-ball friction tester and grease performance tester. The results show that the composite titanium base grease developed in this paper has higher dropping point, better shear stability and water resistance. And better antifriction and wear performance. On this basis, the preparation process of self-repairing titanium base grease was put forward, the physical and chemical properties of titanium base grease containing hydroxyl silicate were tested, the working time and working load were studied. The effect of the amount of hydroxy silicate self-repairable agent on the self-repairing performance of composite titanium base grease was studied. A self-repairing complex titanium base grease with self-repairing function was preliminarily prepared. The effects of hydroxyl silicate self-repairable agent on the self-repairing characteristics of titanium base grease were studied by using four-ball friction tester and M-200 wear tester. The lubrication model of self-repairing titanium base grease was established and the friction and wear self-repairing mechanism was discussed. In this paper, the formula and process for the preparation of self-repairing titanium grease in laboratory are preliminarily obtained, which provides a reference for the study of the self-repairing performance of the grease, and provides guidance for the industrial preparation of the self-repairing titanium base grease.
【學位授予單位】：哈爾濱工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TH117.2

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