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A kind of food grade lubricating grease and its application

A food-grade, lubricating grease technology, applied in the field of food-grade lubricating grease, can solve the problems of unsuitable food-grade lubricating grease, harmful to human body, etc., and achieve the effects of reducing friction coefficient, high dropping point, good water resistance and rust prevention

Active Publication Date: 2022-03-25
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, the service life of grease largely depends on the performance of additives. At present, most grease additives use carbon-containing nano-materials, nano-metal oxides, etc., but these materials are harmful to the human body and are not suitable for food-grade grease

Method used

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  • A kind of food grade lubricating grease and its application
  • A kind of food grade lubricating grease and its application
  • A kind of food grade lubricating grease and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) First, add 400g of food-grade white oil, 67g of aluminum isopropoxide, and 23.5g of benzoic acid into the reaction kettle, heat and control the temperature within the range of 95-100°C, and stir to completely dissolve it;

[0047] (2) Then add 109.5g stearic acid in the mixture after step (1) dissolves, stir 30min, make it fully dissolve, react;

[0048] (3) Then pour 11.8g of water into the product obtained in step (2) linearly, saponify at 110-115°C for 30min, heat up to 160°C for dehydration, and dehydrate for 20min to evaporate the water of the flocs after saponification until The saponified flocs are scattered into blocks. Then add 200g of food-grade white oil to it, heat up to 200-210°C for high temperature refining for 30min;

[0049] (4) Add 200g of food-grade white oil to the product obtained after step (3) heating and refining at last for rapid cooling, after stirring and cooling, use S65 three-roll mill to grind 3 times to obtain food-grade grease base g...

Embodiment 2

[0059] (1)-(4) is the same as step (1)-(4) in embodiment 1;

[0060] Change the mass ratio of nano-polytetrafluoroethylene and food-grade talcum powder in the food-grade additive in Example 1 to be 2:3, 3:2, 4:1, and the total addition is 5%, and different food-grade grease.

[0061] According to the method of Example 1, the friction and wear properties of the prepared food-grade grease were tested, and the results are shown in Table 3. Table 3 Test results of grease with different ratios of nano-polytetrafluoroethylene and food-grade talcum powder

[0062] (Working conditions: 1.69Gpa, 0.157m / s, 75℃)

[0063]

Embodiment 3

[0065] (1) First, add 400g of food-grade white oil, 67g of aluminum isopropoxide, and 23.5g of benzoic acid into the reaction kettle, heat and control the temperature within the range of 95-100°C, and stir to completely dissolve it;

[0066] (2) Then add 109.5g stearic acid in the mixture after step (1) dissolves, stir 30min, make it fully dissolve, react;

[0067] (3) Then pour 11.8g of water into the product obtained in step (2) linearly, saponify at 110-115°C for 30min, heat up to 160°C for dehydration, and dehydrate for 20min to evaporate the water of the flocs after saponification until The saponified flocs are scattered into blocks. Then add 200g of food-grade white oil to it, heat up to 200-210°C for high temperature refining for 30min;

[0068] (4) Add 200g of food-grade white oil to the product obtained after step (3) heating and refining at last for rapid cooling, after stirring and cooling, use S65 three-roll mill to grind 3 times to obtain food-grade grease base g...

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Abstract

The invention discloses a food-grade lubricating grease and an application thereof, belonging to the technical field of lubricating grease. The food-grade grease includes a food-grade grease base and food-grade additives, and the food-grade additive accounts for 0.5% to 5.0% of the mass of the food-grade grease base, wherein the food-grade grease base is measured by mass Fractional meter, including food-grade white oil 75%-85%, stearic acid 6%-16%, benzoic acid 2.0%-3.0%, aluminum isopropoxide 5%-8.7%; the food-grade additives include nano polytetrafluoroethylene Composition of vinyl fluoride and calcium carbonate or composition of nano polytetrafluoroethylene and food-grade talcum powder. The food-grade lubricating grease in the present invention has good anti-wear and anti-friction properties, can be used in the food production industry and household food appliances, effectively improves the service life of the equipment and the service life of the food-grade lubricating grease, and has a positive effect on food safety. Certain guarantees.

Description

technical field [0001] The invention relates to a food-grade lubricating grease and its application, belonging to the technical field of lubricating grease additives. Background technique [0002] In recent years, food safety issues have occurred frequently, and more and more food safety incidents have made people dreadful. Food safety issues have also become the focus of global attention. There are many factors that affect food safety. Among them, the pollution caused by lubricating materials on the mechanical equipment used in food processing is one of the main reasons for food safety problems. In the food production and manufacturing process, food machinery and equipment are essential, and lubrication is necessary for every mechanical equipment. In the food production and manufacturing process, once the lubricating material leaks, it is easy to be mixed into the food, thus harm to food safety. In order to avoid this problem, food-grade lubricating materials must be used...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/00C10M177/00C10N30/06C10N30/08C10N30/12
CPCC10M169/00C10M177/00C10M2201/062C10M2203/1006C10M2201/102C10M2207/021C10M2207/0206C10M2207/126C10M2207/141C10M2213/062Y02W30/74
Inventor 钱善华巩龙飞王韦倪自丰唐磊
Owner JIANGNAN UNIV