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Lubricant grease composition and preparation method of same

A grease composition and content technology, applied in the field of lubricating oil, can solve the problems of reducing chemical stability and corrosion resistance, silicon dioxide particles do not meet food grade, and expensive perfluorinated compounds, etc., to achieve excellent chemical stability , good extreme pressure and wear resistance, reasonable price effect

Active Publication Date: 2016-08-31
埃优诺特种新材料科技(山东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, perfluorinated compounds are expensive and are only suitable for use in some high-precision parts, not suitable for large-scale promotion
[0006] CN104087396A uses polyalphaolefin (PAO) and polyisobutylene as base oils, uses silicon glycol and fumed silica as thickeners, and adds graphite and molybdenum dioxide solid additives to prepare a high extreme pressure load-bearing silicone grease Composition, but using PAO and polyisobutylene instead of silicone oil as the base oil will increase the lubricity of silicone grease and reduce its chemical stability and corrosion resistance
In addition, black graphite and silica particles do not meet the requirements of food grade

Method used

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  • Lubricant grease composition and preparation method of same
  • Lubricant grease composition and preparation method of same

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preparation example Construction

[0042] The present invention also provides a preparation method of the lubricating grease composition according to the present invention, comprising the following steps: uniformly mixing each component, and grinding to obtain the lubricating grease composition.

[0043] Specifically, the method includes the following steps:

[0044] 1. Put the base oil and structure improver into the refining kettle in turn, stir and mix and heat to 100-120°C, keep for 5-10 minutes;

[0045] 2. Add fumed silica, precipitated silica, and polytetrafluoroethylene, continue to stir and heat up to 180-200°C, then keep warm for 10-30 minutes;

[0046] 3. Cool down to 100-120°C, then add antioxidant, stir and mix evenly, then grind to get the finished product.

Embodiment 1

[0050] 49kg of silicone oil (Dow Corning Company, brand XIAMETER PMX-200 / 1000cs, the same below), 31.5kg of white oil (Tianjin Kaiwei Yongli United Chemical Co., Ltd., brand Uber Clair 55, the same below), 1kg of stearic acid (Pt Sumi Asih Oleo chemical Industry, grade SA1801, the same below) was put into the preparation kettle in turn, stirred and mixed and heated to 120°C; 3kg of fumed silica (Dow Corning Company, grade A130, the same below), 5kg of precipitated silica (Anji Donglai Pharmaceutical Excipients Co., Ltd., brand S100, the same below), 10kg of polytetrafluoroethylene (Daikin Industries, brand PolyflonL-2-PTFE, the same below), continue to stir and heat up to 190 ° C and then keep warm for 30 minutes; cool down to 120 ° C, Then add 0.5 kg of antioxidant octyl-butyldiphenylamine (BASF, trade name Irganox L57, the same below), stir and mix evenly, and grind to obtain grease composition I.

Embodiment 2

[0065] Put 40.5 kg of silicone oil, 40 kg of polyalphaolefin (Mobil Corporation, brand SpectraSyn40, the same below), 1 kg of vegetable oleic acid (Shanghai Mengjiu Industrial Co., Ltd., the same below) into the preparation kettle in sequence, stir and mix and heat to 120 ° C; add 5 kg of gas phase Silica A130, 8kg of precipitated silica S100, 5kg of polytetrafluoroethylene, continue to stir and heat up to 200°C and then keep warm for 10 minutes; cool down to 100°C, then add 0.5kg of antioxidant octyl-butyldiphenylamine, Stir and mix evenly, then grind to obtain grease composition V.

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Abstract

The invention provides a lubricant grease composition and a preparation method of a same. On the basis that the total weight of the lubricant grease composition is 100%, the lubricant grease composition includes (a) basic oil, (b) fumed silica, (c) precipitated silica, (d) a structure improver, (e) polytetrafluoroethylene and (f) an anti-oxygen agent, wherein the basic oil is a mixture of silicone oil and hydrocarbon oil according to the weight ratio of 7:3-3:7, preferably 6:4-4:6. The lubricant grease composition has excellent comprehensive performance, is safe and reliable to use, has simple preparation process, is suitable for industrial production, has a wide application range and can be widely used in devices contacted with foods.

Description

technical field [0001] The invention relates to a lubricating grease composition and a preparation method thereof, in particular to a food-grade lubricating grease composition and a preparation method thereof, belonging to the field of lubricating oil. Background technique [0002] In the process of food processing, it is necessary to widely use mechanical devices and equipment for product transportation, packaging, drying, puffing, compression, etc., such as presses, mixers, food and beverage filling machines and other equipment. Lubricating grease is generally used to prevent mechanical parts from wearing, corroding or reducing the heat generated by friction, and to provide a good sealing function. [0003] However, lubricating grease will come into contact with food during use, so lubricating grease must meet the requirements of non-toxic and harmless on the basis of equipment lubrication. In economically developed countries such as Europe and the United States, there is...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/06C10N30/12C10N40/04C10N40/02
CPCC10M125/26C10M129/40C10M133/12C10M147/02C10M169/044C10N2030/06C10N2030/12C10N2040/02C10N2040/04
Inventor 范海粉王瑞兴
Owner 埃优诺特种新材料科技(山东)有限公司