WO2022120897A1 - 一种食品级润滑脂及其应用 - Google Patents

一种食品级润滑脂及其应用 Download PDF

Info

Publication number
WO2022120897A1
WO2022120897A1 PCT/CN2020/136485 CN2020136485W WO2022120897A1 WO 2022120897 A1 WO2022120897 A1 WO 2022120897A1 CN 2020136485 W CN2020136485 W CN 2020136485W WO 2022120897 A1 WO2022120897 A1 WO 2022120897A1
Authority
WO
WIPO (PCT)
Prior art keywords
food
grade
grease
lubricating
nano
Prior art date
Application number
PCT/CN2020/136485
Other languages
English (en)
French (fr)
Inventor
钱善华
巩龙飞
王韦
倪自丰
唐磊
Original Assignee
江南大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江南大学 filed Critical 江南大学
Publication of WO2022120897A1 publication Critical patent/WO2022120897A1/zh

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/10—Compounds containing silicon
    • C10M2201/102—Silicates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/0206—Hydroxy compounds used as thickening agents
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/141—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings monocarboxylic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2213/06—Perfluoro polymers
    • C10M2213/062—Polytetrafluoroethylene [PTFE]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes

Definitions

  • the invention relates to a food-grade lubricating grease and its application, and belongs to the technical field of grease additives.
  • Food-grade grease is one of the components of food-grade lubricating materials, which are used to lubricate, seal and protect machinery and equipment for food processing and packaging. Due to the frequent occurrence of heating, cooking and other working conditions during food processing, food-grade grease should have good high temperature resistance, water resistance, and non-toxic and harmless in addition to the characteristics of ordinary grease.
  • vaseline occupies the majority and accounts for a relatively high proportion, but vaseline has weak anti-friction and anti-wear effects and poor high temperature resistance, so it cannot be used in high-temperature cooking, such as soymilk machines.
  • Aluminum complex grease is used in food grade grease because of its excellent high temperature resistance and water resistance.
  • Some scholars use aluminum trimer as a thickener, but aluminum trimer is an oil solvent, and most of it is an industrial oil solvent, which may cause pollution to food-grade white oil, so the safety cannot be guaranteed.
  • the application of food-grade grease will become more and more extensive. Therefore, improving the preparation process of food-grade grease and obtaining food-grade grease with low hazard and long life can not only achieve The purpose of saving energy can also greatly satisfy people's sense of food security.
  • lubricating grease additives use carbon-containing nano-materials, nano-metal oxides, etc., but these materials are harmful to human body and are not suitable for food-grade grease.
  • food additive is widely used in the food industry and has the characteristics of non-toxic and harmless. It has a great development space as an additive for food-grade grease.
  • Food-grade talc is a food-grade additive, which is widely used in flow aid and mold release in food. Its application in food-grade grease additives can ensure safety.
  • the present invention provides a food-grade grease and a preparation method thereof.
  • the food-grade grease provided by the present invention can be used in the food production industry and household food appliances, and the grease has good anti-wear and anti-friction properties. , can effectively improve the transmission efficiency and life of gears, guide rails, chains, bearings and other transmission methods in food equipment, and is expected to become a food-grade grease with excellent performance, excellent price and excellent life. Safety concerns and energy conservation goals.
  • the first object of the present invention is to provide a food-grade grease, the food-grade grease comprises a food-grade grease base grease and a food-grade additive, and the food-grade additive accounts for 0.5% of the mass of the food-grade grease base grease ⁇ 5.0%, wherein, the food-grade lubricating base grease, in terms of mass fraction, includes food-grade white oil 75%-85%, stearic acid 6%-16%, benzoic acid 2.0%-3.0%, isopropyl alcohol Aluminium 5%-8.7%; the food-grade additive includes a composition of nano-polytetrafluoroethylene and calcium carbonate or a composition of nano-polytetrafluoroethylene and food-grade talc.
  • the food-grade additive is preferably a combination of nano-polytetrafluoroethylene and calcium carbonate.
  • the ratio of the two in the composition of nano-polytetrafluoroethylene and calcium carbonate, in terms of mass ratio, is 1-4:1-4, preferably 1:4.
  • the food-grade lubricating base grease in terms of mass fraction, preferably comprises: food-grade white oil 78%-82%, stearic acid 10%-12%, benzoic acid 2.0%- 3.0%, aluminum isopropoxide 6%-7%.
  • the food-grade grease includes food-grade grease base grease and food-grade additives
  • the food-grade additives include nano-polytetrafluoroethylene with 1.0% by mass of food-grade grease base grease and 4.0% calcium carbonate, wherein the food-grade lubricating grease base grease is 80% food-grade white oil, 10.95% stearic acid, 2.35% benzoic acid, and 6.7% aluminum isopropoxide.
  • the food-grade grease is prepared by the following method:
  • step (2) adding stearic acid to the mixture after the dissolving in step (1), stirring to dissolve it;
  • step (3) in the product obtained in step (2), adding water to carry out saponification, dehydration after the saponification, then adding food-grade white oil to heat up and refining;
  • step (4) get the food-grade lubricating grease base grease and food-grade additive obtained in step (4), mix by stirring, then obtain food-grade lubricating grease after ultrasonic treatment and grinding.
  • the food-grade white oil described in step (1) complies with the following standards: FDA 21 CFR Section 172.878, Section 178.3620(a), Section 178.3570, Section 176.170 regulations, and passed NSF H1 level, 3H level certification.
  • the heating temperature in step (1) is 95-110° C., and the heating time is 30-40 min.
  • the kinematic viscosity (40° C.) of the food-grade white oil described in step (1) is 170 mm 2 /s.
  • the saponification temperature in step (3) is 110-115° C.
  • the saponification time is 20-40 min.
  • the amount of water added in step (3) is 1.0%-1.5% of the mass of the food-grade lubricating grease base grease.
  • the dehydration treatment method described in the step (3) is high temperature dehydration, the dehydration temperature is 150-160 ° C, and the dehydration is maintained in a saponified state, so that the water of the saponified flocs evaporates, Until the saponified flocs are dispersed into lumps.
  • the temperature of the temperature-raising refining in step (3) is 200-210° C., and the time is 20-40 min.
  • the grinding in step (4) is performed by using a three-roll mill, and the number of times of grinding is 2-5 times.
  • the consumption of food-grade white oil in step (1) accounts for 50-55% of the total consumption of food-grade white oil
  • the consumption of food-grade white oil in step (3) accounts for food-grade white oil 20-25% of the total consumption
  • the consumption of food-grade white oil in step (4) accounts for 25-30% of the total consumption of food-grade white oil.
  • the consumption of food-grade white oil in step (1) accounts for 50% of the total consumption of food-grade white oil
  • the consumption of food-grade white oil in step (3) accounts for the total consumption of food-grade white oil 25% of the total consumption of food-grade white oil in step (4) accounts for 25% of the total consumption of food-grade white oil.
  • the stirring time in step (5) is 5-30 min.
  • the ultrasonic treatment method in step (5) is to vibrate in an ultrasonic cleaning machine for 10-20 min.
  • the second object of the present invention is to provide a lubricating material comprising the above-mentioned food-grade grease.
  • the third object of the present invention is to provide the application of the above-mentioned food-grade grease or the above-mentioned lubricating material in food machinery.
  • food-grade lubricating grease adopts food-grade white oil as base oil
  • food-grade white oil is obtained by taking mineral oil as base oil, obtained after deep chemical refining, edible alcohol extraction and other processes, and is suitable for grain and oil Lubrication of processing equipment in the food industry such as processing, fruit and vegetable processing, dairy product processing, bread cutting machines, etc.
  • the mold release agent for food such as chocolate can prolong the storage and preservation period of wine, vinegar, fruits, vegetables and canned food. Therefore, the use of food-grade white oil as the base oil of the food-grade grease can ensure the safety of the grease to a certain extent.
  • the composition of nano-polytetrafluoroethylene and calcium carbonate or the composition of nano-polytetrafluoroethylene and food-grade talc as food-grade additive, at least two in food-grade talc and calcium carbonate are used as additives , different additives will form a synergistic effect, significantly reduce the friction coefficient of the ball-disk friction pair, and in the optimal case, the friction coefficient of the ball-disk friction pair can be as low as 0.039, and the wear volume of the steel disk is only 0.37 ⁇ 10 7 ⁇ m 3 , Compared with the single additive, the lubricating performance has been significantly improved.
  • the additives of the food-grade lubricating grease of the present invention are food-grade talcum powder, nano-polytetrafluoroethylene and calcium carbonate, and a small amount of addition is harmless to food and can ensure safety.
  • the food-grade grease of the present invention uses a composite aluminum base as a thickening agent.
  • the composite aluminum base grease has properties such as high dropping point, high temperature resistance, good water resistance and rust resistance, so it is suitable for food processing in the food machinery industry. During the process, heating, cooking and other working conditions often occur.
  • FIG. 1 is a photo of the food-grade grease prepared in Example 1.
  • FIG. 1 is a photo of the food-grade grease prepared in Example 1.
  • Figure 2 is a schematic diagram of the MFT-5000 friction and wear testing machine.
  • FIG. 3 is a photograph of the food-grade grease prepared in Example 3.
  • FIG. 3 is a photograph of the food-grade grease prepared in Example 3.
  • the raw materials used in the implementation cases of the present invention are as follows, but are not limited to the manufacturers of the listed raw materials.
  • step (2) then add 109.5g stearic acid to the mixture after the dissolving of step (1), stir 30min, make it fully dissolve, react;
  • step (3) 11.8g of water is then poured into the product obtained in step (2) in a linear shape, saponified for 30min at a temperature of 110-115°C, heated to 160°C for dehydration, and the dehydration time 20min evaporates the water of the saponified flocs until The saponified flocs are scattered into lumps. Then add 200g of food-grade white oil to it, heat up to 200-210°C for high temperature refining for 30min;
  • Fig. 1 is a photo of the food-grade grease prepared in this embodiment. It can be seen from Fig. 1 that the prepared food-grade grease is relatively pure white, has no other impurities, and has no special odor, and the prepared food-grade grease has a relatively high viscosity. it is good.
  • MFT-5000 friction and wear tester (Rtec Instruments) to test the friction and wear performance of the food-grade grease in the above examples.
  • the schematic diagram of the MFT-5000 friction and wear tester is shown in Figure 2.
  • the steel ball used in the experiment is made of GCr15, and the friction disc used in the experiment is made of 45 steel.
  • the food-grade grease containing different mass fractions of food-grade talc was evenly spread on the surface of the disc. After setting the experimental parameters, carry out the experiment.
  • nano-polytetrafluoroethylene is a nano-material, which has strong adsorption. During the friction process, it can be adsorbed on the surface of the friction pair to form an adsorption film, thereby reducing friction and wear.
  • food-grade talc is mainly composed of SiO 2 and MgO.
  • the friction disc is machined, and its surface roughness cannot be guaranteed to be absolutely smooth, so the real contact area between the friction ball and the friction disc is small, and it bears high contact stress during the friction process. It is easy to cause damage in the wear scar, and grooves are formed on the surface of the wear scar.
  • some talc powder (mainly SiO 2 ) can repair the ravines on the surface of the wear scar during the friction process, increase the contact area between the friction pairs, and reduce the contact stress between the friction pairs, thereby reducing friction and reducing wear. effect.
  • a small amount of SiO2 can also play the role of micro-polishing, thereby reducing the friction coefficient and wear volume.
  • the mass ratios of nano-polytetrafluoroethylene and food-grade talc in the food-grade additives in Example 1 were changed to 2:3, 3:2, and 4:1, and the total addition amount was 5%, and different food-grade products were prepared respectively. grease.
  • step (2) then add 109.5g stearic acid to the mixture after the dissolving of step (1), stir 30min, make it fully dissolve, react;
  • step (3) 11.8g of water is then poured into the product obtained in step (2) in a linear shape, saponified for 30min at a temperature of 110-115°C, heated to 160°C for dehydration, and the dehydration time 20min evaporates the water of the saponified flocs until The saponified flocs are scattered into lumps. Then add 200g of food-grade white oil to it, heat up to 200-210°C for high temperature refining for 30min;
  • nano-polytetrafluoroethylene and calcium carbonate composite nanoparticles have a good synergistic effect on improving the extreme pressure performance and friction performance of food-grade grease.
  • the mass ratios of nano-polytetrafluoroethylene and calcium carbonate in the food-grade additives in Example 3 were changed to be 2:3, 3:2, and 4:1, and the total amount of addition was unchanged, and different food-grade greases were prepared respectively.
  • Example 2 According to the method of Example 1, the prepared food-grade grease was tested for friction and wear performance, and the results are shown in Table 5.
  • the content of the food-grade additives in step (5) is changed to be 1.0% and 3.0% by mass of food-grade lubricating base grease, wherein the mass ratio of nano-polytetrafluoroethylene and food-grade talc is 1:4, and the remaining conditions are the same as the implementation Example 1, food-grade grease containing 1.0% and 3.0% of food-grade additives was prepared.
  • the food-grade additive in step (5) is nano-polytetrafluoroethylene, the mass fraction is 5.0%, and the remaining conditions are the same as in Example 1, and the food-grade grease containing 5.0% nano-polytetrafluoroethylene is prepared (this comparative example is a separate The best example of adding polytetrafluoroethylene).
  • the food-grade additive in step (5) is food-grade talc, and other conditions are the same as in Example 1, and the food-grade lubricating grease containing 1.0% food-grade talc is prepared (this comparative example is the optimum of adding food-grade talc alone). example).
  • the food-grade additive in step (5) is calcium carbonate, and other conditions are the same as in Example 1, to prepare a food-grade grease containing 5.0% calcium carbonate (this comparative example is the best example of adding calcium carbonate alone).
  • step (5) is technical-grade talc, and the remaining conditions are the same as those in Example 1, and the food-grade lubricating grease containing 1.0% technical-grade talc is prepared (this comparative example is the optimal example of adding technical-grade talc alone) .
  • the food-grade additives in step (5) are nano-polytetrafluoroethylene, calcium carbonate and food-grade talc, and the mass ratio of the three is 2:2:1, and the remaining conditions are the same as those in Example 1, and the preparation contains 5.0% polytetrafluoroethylene.
  • a food-grade lubricating grease of ethylene, calcium carbonate and food-grade talc (this comparative example is the optimal example of adding nano-polytetrafluoroethylene, calcium carbonate and food-grade talc at the same time).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

一种食品级润滑脂及其应用，属于润滑脂技术领域。所述食品级润滑脂包括食品级润滑脂基础脂和食品级添加剂，所述食品级添加剂占食品级润滑脂基础脂质量的0.5％～5.0％，其中，所述食品级润滑脂基础脂以质量%计，包括食品级白油75％-85％，硬脂酸6％-16％，苯甲酸2.0％-3.0％，异丙醇铝5％-8.7％；所述食品级添加剂包括纳米聚四氟乙烯和碳酸钙的组合物或纳米聚四氟乙烯和食品级滑石粉的组合物。该食品级润滑脂具有良好的抗磨减摩特性，可用于食品生产行业以及家用食品电器中，有效地提高设备的使用寿命以及食品级润滑脂的使用寿命，同时对食品安全性具有一定的保障。

Description

一种食品级润滑脂及其应用 技术领域
本发明涉及一种食品级润滑脂及其应用，属于润滑脂添加剂技术领域。
背景技术
近年来，食品安全问题频发，越来越多的食品安全事件的发生让人们望食生畏，食品安全问题也已经成为全球关注的焦点。影响食品安全的因素众多，其中，食品加工过程中所使用到的机械设备上存在的润滑材料造成的污染是导致食品安全问题的主要原因之一。在食品的生产制造过程中，食品机械装备必不可少，而润滑是每一个机械设备所必须的，在食品的生产制造过程中，一旦润滑材料发生泄露就很容易会掺杂到食品中，从而对食品安全造成危害。为了避免该问题的发生，在食品包装及生产的部分环节必须使用食品级润滑材料。食品级润滑脂是食品级润滑材料的组成之一，用于润滑、密封和防护食品加工包装的机械设备。由于食品加工过程中经常会出现加热、蒸煮等工况，因此食品级润滑脂除具有普通润滑脂的特性外，还要具有良好的耐高温、抗水性并且无毒无害。
目前，国内生产的符合要求的食品级润滑脂产品较少，市场上的产品大多数为国外产品且价格较昂贵。在现有的食品级润滑材料中，凡士林占据了大多数且占比较高，但是凡士林的减摩抗磨效果较弱以及耐高温性较差，不能适用于高温蒸煮的场合，例如豆浆机等。为了解决这一问题，也有一些学者提出可以用食用植物油脂或动物油脂作为食品机械的润滑材料，希望达到“无毒”效果，但这样做“其实危害更大”，因为在高温高湿环境下，猪油、菜籽油等动植物油脂遇热后会变质发霉，更容易滋生污染食品的细菌等，长期使用会对消费者带来不良的影响。因此，开展专用的食品级润滑脂研究很有必要。
复合铝基润滑脂因其优异的耐高温、抗水等特性被用到食品级润滑脂中。有部分学者使用三聚体铝作为稠化剂，但三聚体铝是一种油溶剂，且多为工业用油溶剂，可能会对食品级白油造成污染，因此安全性无法保证。随着国民食品安全意识提升和法律条例的完善，食品级润滑脂的应用会越来越广泛，因此，改进食品级润滑脂的制备工艺，获得低危害、寿命长的食品级润滑脂不仅能达到节约能源的目的，也能极大地满足人们对于食品的安全感。
此外，润滑脂的寿命很大程度上取决于添加剂的性能，目前大多数润滑脂添加剂采用含碳纳米材料，纳米金属氧化物等，但这些材料对人体有害，不适用于食品级润滑脂。食品添加剂作为一种添加剂，其广泛应用于食品行业，具有无毒无害的特点，其作为食品级润滑脂的添加剂有很大的发展空间。食品级滑石粉属于食品级添加剂，广泛应用于食品中的助流、 脱模。其应用于食品级润滑脂添加剂能够保证安全性。
发明内容
针对上述问题，本发明提供了一种食品级润滑脂及其制备方法，本发明所提供的食品级润滑脂可用于食品生产行业以及家用食品电器中，该润滑脂具有良好的抗磨减摩性能，能够有效提高食品装备中齿轮、导轨、链条、轴承等传动方式的传动效率和寿命，有望成为一种性能优、价格优、寿命优的食品级润滑脂应用于食品生产行业中，实现减少食品安全问题和节约能源的目标。
本发明的第一个目的是提供一种食品级润滑脂，所述食品级润滑脂包括食品级润滑脂基础脂和食品级添加剂，所述食品级添加剂占食品级润滑脂基础脂质量的0.5％～5.0％，其中，所述食品级润滑脂基础脂以质量分数计，包括食品级白油75％-85％，硬脂酸6％-16％，苯甲酸2.0％-3.0％，异丙醇铝5％-8.7％；所述食品级添加剂包括纳米聚四氟乙烯和碳酸钙的组合物或纳米聚四氟乙烯和食品级滑石粉的组合物。
在本发明的一种实施方式中，所述食品级添加剂优选为纳米聚四氟乙烯和碳酸钙的组合物。
在本发明的一种实施方式中，所述纳米聚四氟乙烯和碳酸钙的组合物中，以质量比计，二者比例为1～4:1～4，优选为1:4。
在本发明的一种实施方式中，所述食品级润滑脂基础脂以质量分数计，优选包括：食品级白油78％-82％，硬脂酸10％-12％，苯甲酸2.0％-3.0％，异丙醇铝6％-7％。
在本发明的一种实施方式中，所述食品级润滑脂包括食品级润滑脂基础脂和食品级添加剂，所述食品级添加剂包括食品级润滑脂基础脂质量1.0％的纳米聚四氟乙烯和4.0％的碳酸钙，其中，所述食品级润滑脂基础脂以质量分数计，食品级白油80％，硬脂酸10.95％，苯甲酸2.35％，异丙醇铝6.7％。
在本发明的一种实施方式中，所述食品级润滑脂通过以下方法制备得到：
(1)取食品级白油、异丙醇铝和苯甲酸混合，加热使混合物完全溶解；
(2)将硬脂酸加入到步骤(1)溶解后的混合物中，搅拌使其溶解；
(3)向步骤(2)得到的产物中加入水进行皂化，皂化后脱水，然后加入食品级白油再升温炼制；
(4)向步骤(3)升温炼制后得到的产物中加入食品级白油，冷却后研磨，即得到食品级润滑脂基础脂；
(5)取步骤(4)得到的食品级润滑脂基础脂和食品级添加剂，通过搅拌混合，然后经 超声处理、研磨后得到食品级润滑脂。
在本发明的一种实施方式中，步骤(1)中所述食品级白油符合以下标准：FDA 21 CFR第172.878条、第178.3620(a)条、第178.3570、第176.170条的规定，并且通过NSF H1级、3H级认证。
在本发明的一种实施方式中，步骤(1)中所述加热的温度为95-110℃，加热的时间为30-40min。
在本发明的一种实施方式中，步骤(1)中所述的食品级白油的运动粘度(40℃)为170mm 2/s。
在本发明的一种实施方式中，步骤(3)中所述的皂化的温度为110-115℃，皂化时间为20-40min。
在本发明的一种实施方式中，步骤(3)中水的加入量为食品级润滑脂基础脂质量的1.0％-1.5％。
在本发明的一种实施方式中，步骤(3)中所述脱水的处理方式为高温脱水，脱水温度为150-160℃，保持在皂化状态下脱水，使皂化后的絮状物水分蒸发，直至皂化后的絮状物散开成块状。
在本发明的一种实施方式中，步骤(3)中所述升温炼制的温度为200-210℃，时间为20-40min。
在本发明的一种实施方式中，步骤(4)中所述的研磨是利用三辊研磨机进行研磨，研磨的次数为2-5次。
在本发明的一种实施方式中，步骤(1)中食品级白油的用量占食品级白油总用量的50-55％，步骤(3)中食品级白油的用量占食品级白油总用量的20-25％，步骤(4)中食品级白油的用量占食品级白油总用量的25-30％。
在本发明的一种实施方式中，步骤(1)中食品级白油的用量占食品级白油总用量的50％，步骤(3)中食品级白油的用量占食品级白油总用量的25％，步骤(4)中食品级白油的用量占食品级白油总用量的25％。
在本发明的一种实施方式中，步骤(5)中所述搅拌时间为5-30min。
在本发明的一种实施方式中，步骤(5)中所述超声处理的方式为在超声波清洗机中振动10-20min。
本发明的第二个目的是提供包含上述食品级润滑脂的润滑材料。
本发明的第三个目的是提供上述食品级润滑脂或上述润滑材料在食品机械装置中的应用。
本发明的有益效果：
1、本发明中食品级润滑脂采用食品级白油作为基础油，食品级白油，是以矿物油为基础油，经深度化学精制、食用酒精抽提等工艺处理后得到的，适用于粮油加工、水果蔬果加工、乳制品加工、面包切制机等食品工业的加工设备的润滑，应用于食品上光、防粘、消泡、刨光、密封，可作通心面、面包、饼干、巧克力等食品的脱模剂，能够延长酒、醋、水果、蔬菜、罐头的贮存、保鲜期。因此使用食品级白油作为所述的食品级润滑脂的基础油能够对润滑脂的安全性有一定保证。
2、本发明中使用纳米聚四氟乙烯和碳酸钙的组合物或纳米聚四氟乙烯和食品级滑石粉的组合物作为食品级添加剂，食品级滑石粉以及碳酸钙中的至少两种作为添加剂，不同的添加剂之间会形成协同作用，明显降低球盘摩擦副摩擦系数，且最优情况下，球盘摩擦副摩擦系数可以低至0.039，钢盘磨损体积仅为0.37×10 7μm 3，较单一添加剂的润滑性能得到了明显的提高。
3、本发明所述的食品级润滑脂的添加剂为食品级滑石粉、纳米聚四氟乙烯和碳酸钙，少量添加对食品无害，能够保证安全性。
4、本发明所述的食品级润滑脂采用复合铝基作为稠化剂，复合铝基润滑脂具有高滴点、耐高温、良好的耐水及防锈等性能，因此适用于食品机械行业食品加工过程中经常会出现加热、蒸煮等工况。
附图说明
图1为实施例1制备的食品级润滑脂的照片。
图2为MFT-5000摩擦磨损试验机的示意图。
图3为实施例3制备的食品级润滑脂的照片。
具体实施方式
下面结合具体实施例，进一步阐述本发明，应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解，在阅读了本发明讲授的内容之后，本领域技术人员可以对本发明做各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。
本发明实施案例所用原料如下表，但不仅限于所列原料的厂家。
表1原料
Figure PCTCN2020136485-appb-000001
Figure PCTCN2020136485-appb-000002
实施例1
(1)首先，在反应釜中加入400g食品级白油与67g异丙醇铝、23.5g苯甲酸，加热控制温度在95-100℃范围内，搅拌使其完全溶解；
(2)然后向步骤(1)溶解后的混合物中加入109.5g硬脂酸，搅拌30min，使其充分溶解、反应；
(3)随后向步骤(2)得到的产物中线状淋入11.8g水，于110-115℃温度下皂化30min，升温至160℃脱水，脱水时间20min使皂化后的絮状物水分蒸发，直至皂化后的絮状物散开成块状。然后向其中加入200g的食品级白油，升温至200-210℃高温炼制30min；
(4)最后向步骤(3)升温炼制后得到的产物中加入200g的食品级白油进行急冷，搅拌冷却后，利用S65三辊研磨机研磨3次，即得到食品级润滑脂基础脂；
(5)取100g食品级润滑脂基础脂和占食品级润滑基础脂的质量分数5.0％的纳米聚四氟乙烯和食品级滑石粉(二者质量比为1：4)放入烧杯中，均匀搅拌10min，然后在超声波清洗机中振动10min，经三辊研磨机研磨三次后得到含5.0％食品级添加剂的食品级润滑脂。
图1为本实施例制备的食品级润滑脂的照片，由图1可以看出所制备的食品级润滑脂为较纯净白色，无其他杂质，无特殊气味，且所制备的食品级润滑脂粘度较好。
摩擦磨损性能测试
采用MFT-5000摩擦磨损试验机(Rtec Instruments)对上述实施例中的食品级润滑脂进行摩擦磨损性能测试，MFT-5000摩擦磨损试验机的示意图如图2所示。其中实验所用的钢球由GCr15制成，实验所用摩擦盘由45钢制成。试验前，将含不同质量分数食品级滑石粉的食品级润滑脂均匀地涂抹在圆盘表面。设定实验参数后进行实验。
对上述制备得到食品级润滑脂进行摩擦磨损性能测试，结果见表2。
表2实施例1制备得到的食品润滑脂的摩擦实验结果(工况:1.69Gpa,0.157m/s,75℃)
Figure PCTCN2020136485-appb-000003
由表2可知，食品级滑石粉和纳米聚四氟乙烯同时添加能显著降低摩擦系数和减小磨损 量。相比于对比例1和对比例2单独添加纳米聚四氟乙烯和食品级滑石粉，两者同时添加的效果更好，尤其是较食品级滑石粉。这可能是由于，一方面，食品级滑石粉和纳米聚四氟乙烯在摩擦副间发生化学反应，形成化学反应膜，从而减小摩擦副直接接触的概率，从而降低摩擦系数减小磨损体积。另一方面，纳米聚四氟乙烯为纳米材料，其具有极强的吸附性，在摩擦过程中，其可以吸附在摩擦副的表面，形成吸附膜，从而减小摩擦和磨损。此外，食品级滑石粉主要由SiO 2、MgO组成。在摩擦实验中，摩擦圆盘采用加工而成，其表面粗糙度无法保证绝对光滑，因此摩擦球与摩擦盘的真实接触面积较小，在摩擦过程中承受较高的接触应力，在实验的过程中容易产生破损，在磨痕表面产生沟壑。所以一部分滑石粉(主要是SiO 2)在摩擦过程中可以修补磨痕表面产生的沟壑，增大摩擦副间的接触面积，减小摩擦副间的接触应力，从而达到减小摩擦，降低磨损的作用。同时，少量的SiO 2还可以起到微抛光的作用，从而减小摩擦系数和磨损体积。
实施例2
(1)-(4)同实施例1中的步骤(1)-(4)；
改变实施例1中的食品级添加剂中纳米聚四氟乙烯和食品级滑石粉的质量比为2:3、3:2、4:1，总添加量为5％，分别制备得到不同的食品级润滑脂。
按照实施例1的方式对制备得到的食品级润滑脂进行摩擦磨损性能测试，结果见表3。
表3纳米聚四氟乙烯和食品级滑石粉的比例不同时润滑脂的测试结果(工况:1.69Gpa,0.157m/s,75℃)
Figure PCTCN2020136485-appb-000004
实施例3
(1)首先，在反应釜中加入400g食品级白油与67g异丙醇铝、23.5g苯甲酸，加热控制温度在95-100℃范围内，搅拌使其完全溶解；
(2)然后向步骤(1)溶解后的混合物中加入109.5g硬脂酸，搅拌30min，使其充分溶解、反应；
(3)随后向步骤(2)得到的产物中线状淋入11.8g水，于110-115℃温度下皂化30min，升温至160℃脱水，脱水时间20min使皂化后的絮状物水分蒸发，直至皂化后的絮状物散开 成块状。然后向其中加入200g的食品级白油，升温至200-210℃高温炼制30min；
(4)最后向步骤(3)升温炼制后得到的产物中加入200g的食品级白油进行急冷，搅拌冷却后，利用S65三辊研磨机研磨3次，即得到食品级润滑脂基础脂；
(5)取100g食品级润滑脂基础脂和占食品级润滑基础脂的质量分数5.0％的纳米聚四氟乙烯和碳酸钙放入(二者质量比为1：4)烧杯中，均匀搅拌10min，然后在超声波清洗机中振动10min，经三辊研磨机研磨三次后得到含1.0％的纳米聚四氟乙烯和4％的碳酸钙食品级添加剂的食品级润滑脂；本实施例制备的食品级润滑脂的照片见图3。
按照实施例1的方式对制备得到的食品级润滑脂进行摩擦磨损性能测试，结果见表4。
表4不同添加量的食品级添加剂制备得到的食品润滑脂的摩擦实验结果
Figure PCTCN2020136485-appb-000005
由表4可知，纳米聚四氟乙烯和碳酸钙同时添加能显著降低摩擦系数和减小磨损量。相比于对比例1和对比例3单独添加纳米聚四氟乙烯和碳酸钙，两者同时添加的效果更好，摩擦系数低至0.039，磨损体积也只有0.37×10 7μm 3。可能的原因是，在添加了两种食品级添加剂复配纳米颗粒的食品级润滑脂中，一部分复配纳米颗粒通过吸附在摩擦副的表面，隔开摩擦副的直接接触，以此来达到减小摩擦和磨损的作用。一部分复配纳米颗粒和摩擦副间化学反应产生的氧化钙、氟化铁等，在摩擦过程中被困在接触面内，修补了磨损的表面，且具有微抛光的作用，以此来达到减小摩擦和磨损的作用。此外，由于纳米聚四氟乙烯具有较强的吸附性，可以吸附在碳酸钙的表面上，形成复配的添加剂颗粒，这可以避免立方体状的碳酸钙上的棱角产生的磨粒磨损。且形成的复配纳米颗粒在摩擦副间产生滚动，在摩擦副的界面上发挥一个“滚动轴承”的润滑作用，以此来减小摩擦副间的摩擦和磨损。因此，纳米聚四氟乙烯和碳酸钙复配纳米颗粒对提高食品级润滑脂的极压性能和摩擦性能具有很好的协同作用。
实施例4
(1)-(4)同实施例3中的步骤(1)-(4)；
改变实施例3中的食品级添加剂中纳米聚四氟乙烯和碳酸钙的质量比为2：3、3：2、4： 1，添加总量不变，分别制备得到不同的食品级润滑脂。
按照实施例1的方式对制备得到的食品级润滑脂进行摩擦磨损性能测试，结果见表5。
表5纳米聚四氟乙烯和碳酸钙的比例不同时食品级润滑脂的测试结果(工况:1.86GPa,0.209m/s,75℃)
Figure PCTCN2020136485-appb-000006
实施例5
(1)-(4)同实施例1中的步骤(1)-(4)；
改变步骤(5)中的食品级添加剂的含量为食品级润滑基础脂质量分数1.0％、3.0％，其中，纳米聚四氟乙烯和食品级滑石粉的质量比为1：4，其余条件同实施例1，制备得到含1.0％和3.0％的食品级添加剂的食品级润滑脂。
按照实施例1的方式对制备得到的食品级润滑脂进行摩擦磨损性能测试，结果见表6。
表6 1.0％和3.0％的食品级添加剂的食品级润滑脂的测试结果(工况:1.69Gpa,0.157m/s,75℃)
Figure PCTCN2020136485-appb-000007
对比例1
(1)-(4)同实施例1中的步骤(1)-(4)；
步骤(5)中的食品级添加剂为纳米聚四氟乙烯，质量分数为5.0％，其余条件同实施例1，制备得到含5.0％纳米聚四氟乙烯的食品级润滑脂(此对比例为单独添加聚四氟乙烯的最优例)。
摩擦磨损性能测试见表7。
对比例2
(1)-(4)同实施例1中的步骤(1)-(4)；
步骤(5)中的食品级添加剂为食品级滑石粉，其余条件同实施例1，制备得到含1.0％食品级滑石粉的食品级润滑脂(此对比例为单独添加食品级滑石粉的最优例)。
摩擦磨损性能测试见表7。
对比例3
(1)-(4)同实施例1中的步骤(1)-(4)；
步骤(5)中的食品级添加剂为碳酸钙，其余条件同实施例1，制备得到含5.0％碳酸钙的食品级润滑脂(此对比例为单独添加碳酸钙的最优例)。
摩擦磨损性能测试见表7。
对比例4
(1)-(4)同实施例1中的步骤(1)-(4)；
步骤(5)中的添加剂为工业级滑石粉，其余条件同实施例1，制备得到含1.0％工业级滑石粉的食品级润滑脂(此对比例为单独添加工业级滑石粉的最优例)。
摩擦磨损性能测试见表7。
对比例5
(1)-(4)同实施例1中的步骤(1)-(4)；
步骤(5)中的食品级添加剂为纳米聚四氟乙烯、碳酸钙和食品级滑石粉，三者质量比为2：2：1，其余条件同实施例1，制备得到含5.0％聚四氟乙烯、碳酸钙和食品级滑石粉的食品级润滑脂(此对比例为纳米聚四氟乙烯、碳酸钙和食品级滑石粉同时添加的最优例)。
按照实施例1的方式对制备得到的食品级润滑脂进行摩擦磨损性能测试，结果见表7。
可见，三种添加剂同时添加，磨损很严重，其摩擦系数磨损量比不添加任何添加剂的基础脂还要大。
表7对比例1～4中不同添加剂制备得到的食品润滑脂的测试结果(工况:1.69Gpa,0.157m/s,75℃)
Figure PCTCN2020136485-appb-000008
虽然本发明已以较佳实施例公开如上，但其并非用以限定本发明，任何熟悉此技术的人，在不脱离本发明的精神和范围内，都可做各种的改动与修饰，因此本发明的保护范围应该以权利要求书所界定的为准。

Claims (10)

  1. 一种食品级润滑脂，其特征在于，所述食品级润滑脂包括食品级润滑脂基础脂和食品级添加剂，所述食品级添加剂占食品级润滑脂基础脂质量的0.5％～5.0％，其中，所述食品级润滑脂基础脂以质量分数计，包括食品级白油75％-85％，硬脂酸6％-16％，苯甲酸2.0％-3.0％，异丙醇铝5％-8.7％；所述食品级添加剂包括纳米聚四氟乙烯和碳酸钙的组合物或纳米聚四氟乙烯和食品级滑石粉的组合物。
  2. 根据权利要求1所述食品级润滑脂，其特征在于，所述食品级添加剂为纳米聚四氟乙烯和碳酸钙的组合物。
  3. 根据权利要求2所述食品级润滑脂，其特征在于，所述纳米聚四氟乙烯和碳酸钙的组合物中，二者的质量比为1～4:1～4。
  4. 根据权利要求1～3任一所述食品级润滑脂，其特征在于，所述食品级润滑脂基础脂以质量分数计，包括：食品级白油78％-82％，硬脂酸10％-12％，苯甲酸2.0％-3.0％，异丙醇铝6％-7％。
  5. 根据权利要求1～3任一所述食品级润滑脂，其特征在于，所述食品级润滑脂包括食品级润滑脂基础脂和食品级添加剂，所述食品级添加剂包括食品级润滑脂基础脂质量1.0％的纳米聚四氟乙烯和4.0％的碳酸钙，其中，所述食品级润滑脂基础脂以质量分数计，食品级白油80％，硬脂酸10.95％，苯甲酸2.35％，异丙醇铝6.7％。
  6. 根据权利要求1～3任一所述食品级润滑脂，其特征在于，所述食品级润滑脂通过以下方法制备得到：
    (1)取食品级白油、异丙醇铝和苯甲酸混合，加热使混合物完全溶解；
    (2)将硬脂酸加入到步骤(1)溶解后的混合物中，搅拌使其溶解；
    (3)向步骤(2)得到的产物中加入水进行皂化，皂化后脱水，然后加入食品级白油再升温炼制；
    (4)向步骤(3)升温炼制后得到的产物中加入食品级白油，冷却后研磨，即得到食品级润滑脂基础脂；
    (5)取步骤(4)得到的食品级润滑脂基础脂和食品级添加剂，通过搅拌混合，然后经超声处理、研磨后得到食品级润滑脂。
  7. 根据权利要求6中所述食品级润滑脂，其特征在于，步骤(3)中所述的皂化的温度为110-115℃，皂化时间为20-40min。
  8. 根据权利要求6中所述食品级润滑脂，其特征在于，所述升温炼制的温度为200-210℃，时间为20-40min。
  9. 包含权利要求1～8任一所述食品级润滑脂的润滑材料。
  10. 权利要求1～8任一中所述食品级润滑脂或权利要求9所述的润滑材料在食品机械装置中的应用。
PCT/CN2020/136485 2020-11-12 2020-12-15 一种食品级润滑脂及其应用 WO2022120897A1 (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN202011260691 2020-11-12
CN202011456792.5A CN112552981B (zh) 2020-11-12 2020-12-10 一种食品级润滑脂及其应用
CN202011456792.5 2020-12-10

Publications (1)

Publication Number Publication Date
WO2022120897A1 true WO2022120897A1 (zh) 2022-06-16

Family

ID=75061799

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/136485 WO2022120897A1 (zh) 2020-11-12 2020-12-15 一种食品级润滑脂及其应用

Country Status (2)

Country Link
CN (1) CN112552981B (zh)
WO (1) WO2022120897A1 (zh)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5962376A (en) * 1997-02-25 1999-10-05 Ntn Corporation Resin composition for sliding member and resin gear
US20110190177A1 (en) * 2010-02-02 2011-08-04 Fuchs Lubricants Co. Lubricating greases and process for their production
CN103113969A (zh) * 2013-02-21 2013-05-22 尹继辉 微纳米颗粒改性复合钛基润滑脂及其制备方法
EP2735592A1 (en) * 2012-11-26 2014-05-28 Hydro Aluminium Rolled Products GmbH Coating of a metal sheet or strip
CN104479815A (zh) * 2014-12-23 2015-04-01 上海禾泰特种润滑科技股份有限公司 润滑脂组合物及其制备方法
CN104804842A (zh) * 2014-01-27 2015-07-29 中国石油化工股份有限公司 环保型润滑脂组合物及其制备方法
CN105132108A (zh) * 2015-09-23 2015-12-09 深圳市鹰达行实业有限公司 一种低噪音润滑脂及其制备方法
CN107164058A (zh) * 2017-06-15 2017-09-15 水利部水工金属结构质量检验测试中心 水利工程食品级钢丝绳表面润滑脂、其制备方法及应用
CN107686763A (zh) * 2017-08-24 2018-02-13 中国石油化工股份有限公司 水利工程食品级轴承润滑脂及制备方法和应用
CN108219899A (zh) * 2017-12-28 2018-06-29 东莞太平洋博高润滑油有限公司 一种密封气阀润滑脂及其制备方法
CN109233959A (zh) * 2018-10-24 2019-01-18 辽宁海华科技股份有限公司 一种汽车轮毂轴承润滑脂组合物及其制备方法
CN111394163A (zh) * 2020-04-28 2020-07-10 江南大学 一种食品级润滑脂及其制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639237A (en) * 1969-05-14 1972-02-01 Exxon Research Engineering Co Extreme pressure greases
EP2457983A1 (en) * 2010-11-26 2012-05-30 Jacek Dlugolecki Lubricant of solid or liquid consistency, exhibiting low coefficient of friction
PL2852785T3 (pl) * 2012-05-23 2020-02-28 Nippon Steel Corporation Rurowe połączenie gwintowe o poprawionych właściwościach dużego momentu obrotowego przy skręcaniu
CN105907446B (zh) * 2016-04-20 2019-02-22 埃优诺特种新材料科技(山东)有限公司 润滑脂组合物及其制备方法

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5962376A (en) * 1997-02-25 1999-10-05 Ntn Corporation Resin composition for sliding member and resin gear
US20110190177A1 (en) * 2010-02-02 2011-08-04 Fuchs Lubricants Co. Lubricating greases and process for their production
EP2735592A1 (en) * 2012-11-26 2014-05-28 Hydro Aluminium Rolled Products GmbH Coating of a metal sheet or strip
CN103113969A (zh) * 2013-02-21 2013-05-22 尹继辉 微纳米颗粒改性复合钛基润滑脂及其制备方法
CN104804842A (zh) * 2014-01-27 2015-07-29 中国石油化工股份有限公司 环保型润滑脂组合物及其制备方法
CN104479815A (zh) * 2014-12-23 2015-04-01 上海禾泰特种润滑科技股份有限公司 润滑脂组合物及其制备方法
CN105132108A (zh) * 2015-09-23 2015-12-09 深圳市鹰达行实业有限公司 一种低噪音润滑脂及其制备方法
CN107164058A (zh) * 2017-06-15 2017-09-15 水利部水工金属结构质量检验测试中心 水利工程食品级钢丝绳表面润滑脂、其制备方法及应用
CN107686763A (zh) * 2017-08-24 2018-02-13 中国石油化工股份有限公司 水利工程食品级轴承润滑脂及制备方法和应用
CN108219899A (zh) * 2017-12-28 2018-06-29 东莞太平洋博高润滑油有限公司 一种密封气阀润滑脂及其制备方法
CN109233959A (zh) * 2018-10-24 2019-01-18 辽宁海华科技股份有限公司 一种汽车轮毂轴承润滑脂组合物及其制备方法
CN111394163A (zh) * 2020-04-28 2020-07-10 江南大学 一种食品级润滑脂及其制备方法

Also Published As

Publication number Publication date
CN112552981B (zh) 2022-03-25
CN112552981A (zh) 2021-03-26

Similar Documents

Publication Publication Date Title
CN108219899B (zh) 一种密封气阀润滑脂及其制备方法
CN105907446B (zh) 润滑脂组合物及其制备方法
CN107185984B (zh) 一种具有良好润滑效果的拉丝粉
US11965141B2 (en) Food-grade lubricating grease and method for preparing same
CN102604723B (zh) 一种润滑脂组合物及制备方法
CN102433203A (zh) 一种锂基润滑脂组合物及制备方法
CN110724584A (zh) 一种水溶性铝合金拉伸油及其制备方法
CN106221869B (zh) 一种高寿命耐用润滑油
WO2022120897A1 (zh) 一种食品级润滑脂及其应用
JPS6112791A (ja) 固体潤滑剤含有グリ−ス
CN114381319B (zh) 铜及铜合金拉丝用乳化油及其制备方法
CN111763552A (zh) 一种抑菌易清洗的水溶性拉伸油及其制备方法
EP2334769B1 (en) A method for preparing a grease composition
CN108641796A (zh) 金属加工用全合成切削液及其制备方法
CN106497651B (zh) 一种具有高生物降解性的工程机械润滑脂及制备方法
CN105199817A (zh) 一种低温锂钙基轴承润滑脂及制备方法
CN112574804B (zh) 一种钛合金轧制用黑磷烯水基润滑液及其制备方法
CN103756768A (zh) 一种抗硬水的高性能冷轧乳化液及其制备方法
CN108587736A (zh) 一种无机改性植物基润滑油添加剂的制备方法
CN110295081A (zh) 一种无毒降噪的润滑脂及其制备方法和应用
CN107964443A (zh) 用于轴承的长寿命耐高温润滑脂
RU2808332C1 (ru) Смазка для обработки металлов давлением
CN102676270A (zh) 新型极压润滑脂及其制备方法
CN116144415A (zh) 一种复合改性乳化润滑油
CN117384699A (zh) 一种环保型润滑油及其制备方法与应用

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20964830

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20964830

Country of ref document: EP

Kind code of ref document: A1