Tribological properties of calcium carbonate powders modified with Tween 40 as lubricant additives
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Tribological properties of calcium carbonate powders modified with Tween 40 as lubricant additives
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| Creator |
Chen Tianhua
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| Subject |
Characterization and properties
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| Description |
In this experiment, nanometer calcium carbonate was prepared by metathesis method. The nanometer calcium carbonate was modified by non-ionic surfactant-tween 40. The nanometer calcium carbonate before and after modification was analyzed and characterized by various methods. Scanning electron microscope (SEM) result show the size of the unmodified nano-calcium carbonate is about 200-400nm, while the particle size of the modified particles is about 200 nanometers. Contact angle indicate that CаCO₃ powders become hydrophobic after modified. Moreover the friction and wear properties of Tween 40-CаCO₃ as lubricant additives in rapeseed oil were evaluated with a four-ball friction and wear tester. Tween 40-CаCO₃ could improve the anti-wear and friction reducing capacities of rapeseed oil can conclude from the friction results. X-ray photoelectron spectroscope of worn steel surfaces indicated that an absorption film containing rapeseed oil and 40-CаCO₃ was formed.
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| Date |
2018-06-16T17:11:25Z
2018-06-16T17:11:25Z 2017 |
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| Type |
Article
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| Identifier |
Tribological properties of calcium carbonate powders modified with Tween 40 as lubricant additives / Chen Tianhua // Functional Materials. — 2017. — Т. 24, № 4. — С. 572-576. — Бібліогр.: 8 назв. — англ.
1027-5495 DOI: https://doi.org/10.15407/fm24.04.572 http://dspace.nbuv.gov.ua/handle/123456789/136870 |
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| Language |
en
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| Relation |
Functional Materials
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| Publisher |
НТК «Інститут монокристалів» НАН України
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