一.產(chǎn)品概況 Product Overview
產(chǎn)品名稱：二硫化鎢
Product Name: 二硫化鎢
英文名稱：Tungsten Disulfide
English Name: Tungsten
Disulfide
型號：ZBW12
Model: ZBW12
生產(chǎn)：上海在邦化工有限公司
Manufacturer: Shanghai ZBWM Chemical Engineering Pte. Ltd
品牌：“在邦”
Brand: ZAIBANG
分子式：WS2
Molecular
Formula: WS2
分子量：247.97
Molecular
Mass: 247.97
含量（%）：99～99.9
Content
(%):99～99.9
粒度：一級 Fsss＝0.4～0.7μm，二級 Fsss=0.85～1.15μm
Particle Size: First Class Fsss＝0.4～0.7μm; Second class Fsss=0.85～1.15μm
外 觀：灰黑色
Appearance:
gray black
二．編號系統(tǒng) Number System
CAS號：12138-09-9
CAS Number：12138-09-9
EINECS號：235-243-3
EINECS Number：235-243-3
MDL號：MFCD00011467
MDL Number：MFCD00011467
PubChem號：24854626
PubChem Number：24854626
InChI：1S/2S.W
三.理化性能 Physicochemical Properties
微溶于冷水，溶于熱水。不溶于鹽酸和堿。溶于熔融堿，不溶于醇。有還原性，可與熱的濃硫酸、硝酸、王水等強氧化劑反應(yīng)，在空氣或氧氣中加熱可轉(zhuǎn)化為WO3。
Tungsten disulfide
is slightly soluble in water and soluble
in hot water. It does not
dissolve in hydrochloric acid and alkali. The product is also dissolved in molten alkali but insoluble in alcohol. It has reduction property and have reactions with hot concentrated sulfuric acid, nitric acid, aqua regia and other strong oxidizing agent. It can be converted to WO3 when heated in air or oxygen.
WS2 超細粉末是一種新型潤滑減磨材料，具優(yōu)良潤滑特性，它的干磨擦因素僅為 0.03 。是公認的摩擦潤滑效果最好的原材料之一，靜態(tài)下，它的干磨擦因素為 0.07 ；動態(tài)下，干摩擦因素僅為 0.03 。干磨擦性能比其它材料都好，且能在高溫高壓下使用。在大氣中，二硫化鎢的工作溫度范圍： -270 ℃～650 ℃ (-450F～1200 F) ；
在真空中，它的溫度范圍： -188 ℃～1316 ℃ (-305F～2400F) 。二硫化鎢涂層的極壓能力非常高 , 達到 2000Mpa （ 300，000 psi ）。在航天工業(yè)的固體潤滑中，唯有 WS2 能耐 -270℃～1300℃ 的宇宙高溫。因此一直以來，二硫化鎢作為高檔、高性能摩擦潤滑材料被應(yīng)用在美國宇航局 NASA 航空、航天、軍事等高科技領(lǐng)域。
WS2 superfine powder is a new lubricating antifriction material with excellent lubricating properties and dry friction coefficient of only 0.03. It is
recognized as one of the best raw
materials friction lubrication. Under the static, its dry friction factor is 0.07;
under dynamic state, the dry friction factor is only 0.03. The dry friction performance is superior than other materials.
The product can be used under high
temperature and pressure. In the atmosphere, operating temperature of tungsten disulfide ranges
between -270 ℃ ~ 650 ℃ (-450F ~ 1200 F); in a vacuum, the temperature ranges
between -188 ℃ ~ 1316 ℃ (-305F ~ 2400F). The extreme
pressure capability of tungsten
disulfide coating is very high,
reaching 2000Mpa (300,000 psi). For the solid
lubrication in aerospace industry, , only WS2 can withstand the high universe temperature universe ranging between -270 ℃ ~ 1300 ℃. Tungsten disulfide, as a high-grade and high-performance friction lubricating material, has been historically used in NASA, aviation, aerospace, military and other high-tech
engineering fields.
四.二硫化鎢的用途
Application
1.主要用作石油催化劑：可以作為加氫脫硫催化劑，還被用做聚合、重整、水化、脫水和羥基化等過程的催化劑，而且因為具有裂解性能好，催化活性穩(wěn)定可靠，使用壽命長等特點，很受石油精煉廠的歡迎。
1. WS2 is mainly used as a oil
catalyst: the product can be used as a hydrodesulfurization catalyst as well as
catalyst for processes of polymerization, reforming, hydration, dehydration and
others. It has been widely accepted among oil refinery factories due to its
excellent pyrolysis property, stable and reliable catalytic activity, long usable
life span and other characteristics.
2.在無機功能材料制備技術(shù)中，納米WS2是新型的高效催化劑，由于能形成夾層結(jié)構(gòu)的新型化合物，納米WS2可制成單分子層二維材料，并能夠按需要重新堆垛成具有非常大的內(nèi)空間的“地板房結(jié)構(gòu)”的顆粒狀新型材料，且在重新堆垛過程中可加入插層物質(zhì)，使之成為催化劑或者敏感顯示及超導(dǎo)材料，其巨大的內(nèi)表面積易夾雜促進劑，成為新型的高效催化劑，日本名古屋工業(yè)研究所發(fā)現(xiàn)，納米WS2在CO2轉(zhuǎn)化為CO的過程中具有極大的催化效果，這將促進碳循環(huán)技術(shù)的發(fā)展，為改善全球變暖的趨勢鋪平道路.
2. In the preparation
of inorganic functional material, the nano WS2 is a new highly
efficient catalysts. Since the product is able to form a sandwich structure as
the novel compound, nano-WS2 monolayers can be made
into two-dimensional material, and can be re-stacked into a new granular
material with the large-scale "floor-room" structure as required.
During the process of re-stacking, intercalated substances can be added, which
transform the product into a catalyst, or sensitive display and superconducting
materials. The huge internal surface area of the product makes it easily mixes
with accelerator, and hence becomes a new highly efficient catalysts. According
to the research from Nagoya Industrial Research Institute,
it is found that nanometer WS2 imposes great
catalytic effect during the process where CO2
converting into CO. This finding will encourage the
development of the carbon recycling technology and pave the way to improve the trend
of prevention of global warming.
3.WS2可用做固體潤滑劑、干膜潤滑劑、自潤滑復(fù)合材料：納米WS2是最佳的固體潤滑劑，其摩擦因數(shù)為0.01～0.03，抗壓強度高達2100 MPa，具有耐酸堿侵蝕，耐負荷性能好，無毒無害，使用溫度寬，潤滑壽命長，摩擦因數(shù)低等優(yōu)點。近年來，固體潤滑劑空心富勒烯納米WS2所顯示的超低摩擦與磨損備受人們關(guān)注，比如20世紀80年代美國曾用納米WS2粒子噴附在金屬表面上，形成WS2潤滑干膜，來大幅度降低摩擦因數(shù)，提高模具壽命.
3. WS2 can be used as
solid lubricants, dry film lubricants, self-lubricating composite material. Nanometer WS2 is the best
solid lubricant with the friction factor ranges between 0.01 and 0.0, and the
compressive strength of up to 2100 MPa. It is
resistant to erosion of acid and alkali. It also has good load-proof
performance, non-toxic feature, wide range of applicable temperature, long life
lubrication and low friction factor. 近年來，固體潤滑劑空心富勒烯納米 WS2 所顯示的超低摩擦與磨損備受人們關(guān)注，比如 20 世紀 80 年代美國曾用納米 WS2 粒子噴附在金屬表面上，形成 WS2 潤滑干膜，來大幅度降低摩擦因數(shù)，提高模具壽命 .In recent years, ultra-low friction and
wear of the solid lubricant hollow fullerene nanometer WS2 has captured much attention. In 1980s,
the United States had used nanometer WS2 particles sprayed to the metal surface to form a dry WS2 lubrication. It showed a significant reduction in the
friction coefficient and consequently
improved the die life.
4..納米WS2是制造高性能潤滑油非常重要的添加劑。研究發(fā)現(xiàn)，在潤滑油中添加適量 WS2納米顆粒，能夠極大改善潤滑油的潤滑性能，可降低摩擦因數(shù)20％～50％，提高油膜強度30％～40％，其潤滑性能遠優(yōu)于納米MoS2。在相同條件下，添加有納米WS2基礎(chǔ)油的潤滑性能，明顯優(yōu)于添加有常規(guī)顆粒的基礎(chǔ)油，且具有良好的分散穩(wěn)定性。研究結(jié)果表明，由于添加了納米顆粒的潤滑劑綜合了流體潤滑和固體潤滑的優(yōu)點，從而有望實現(xiàn)從室溫到高溫（超過800℃）的全程潤滑。因此，納米WS2可以作為添加劑，合成新的潤滑系統(tǒng)，具有廣闊的應(yīng)用前景.
4. Nanometer WS2 is a very
important additives in manufacturing of high-performance lubricants. The study
found that adding appropriate amount of WS2 nanoparticles in
lubricating oil, can greatly improve the lubricating properties. The result
showed 20% to 50% reduction in friction coefficient, 30% to 40%
improvement in film strength. The
lubricating properties of nanometer WS2 is far superior
than that of nano MoS2 . Under
the same conditions, the
lubricating property with addition of base oil that contained nanometer WS2, is
significantly better than that of base oil contained conventional particles;
and has good dispersion stability as well. The results showed that the lubricant added with nanoparticles
combines the advantages of both solid and fluid lubrication, hence is expected
to achieve the entire lubrication from room temperature to high temperature
(over 800 ℃). .Nano WS2, as a additive, can
develop a new lubrication system and has broad application prospects.
5.還可以做燃料電池的陽極、有機電解質(zhì)充電電池的陽極、二氧化硫在強酸中氧化的陽極以及傳感器的陽極等；用于做納米陶瓷復(fù)合材料；是良好的半導(dǎo)體材料。
5. The product can be
applied as anode for fuel cell, organic electrolyte
rechargeable battery, sulfur dioxide that oxidized in acid, sensors and so on.
It can also be used to make nano-ceramic composite materials. Nano
WS2 is a good semiconductor material.
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