Cutting oil for glass processing and preparation method and application thereof

Abstract

The invention provides cutting oil for glass processing, which comprises dimer acid with a molecular formula of C36H64O4, the structural formula of the dimer acid is as shown in the specification, and # imgabs0. According to the cutting oil for glass processing provided by the invention, after the dimer acid is added, the sedimentation rate of the cutting oil to glass powder in the glass processing process is effectively improved. The invention also provides a preparation method and application of the cutting oil for glass processing, and a method for improving the glass sedimentation rate.

Description

Technical Field

[0001] The invention belongs to the technical field of cutting oil, and in particular relates to a cutting oil for glass cutting, a preparation method and application thereof, and a method for increasing the sedimentation rate of glass. Background Art

[0002] Cutting refers to the use of cutting tools to cut off excess material from the workpiece to obtain parts that meet the requirements of geometry, dimensional accuracy and surface roughness. In the cutting of glass, cutting fluid or cutting oil is usually used in combination to extend the life of the tool, improve the surface accuracy of the workpiece, reduce tool wear, and reduce the temperature of the cutting zone, thereby improving the efficiency of the processing.

[0003] In some glass processing processes, a large number of fine powder particles are generated due to the grinding of the tool. This type of glass powder has good suspension properties and is not easy to settle or separate. These large amounts of powder adhere to the blade, making the blade less sharp. In severe cases, it will affect the processing speed, and at the same time affect the brightness and precision of the processed products, and even cause the defective rate to soar significantly.

[0004] CN115678658A discloses a glass cutting fluid with high sedimentation performance, belonging to the field of glass processing technology. The glass cutting fluid components and their weight percentages are: extreme pressure additive 5-20%, lubricant 10-20%, rust inhibitor 5-10%, modified cationic sedimentation agent 5-15%, polyol 5-20%, bactericide 1-5%, deionized water 40-70%. The glass cutting fluid with high sedimentation performance of the invention uses a modified cationic sedimentation agent prepared by synthesis to quickly sediment glass powder, solid particles, metal ions, and flocculent sediments without suspension or agglomeration, thereby reducing scratches on the surface of optical glass, having excellent lubricity, being non-toxic and harmless to the skin, and being green and environmentally friendly. However, the invention relates to a water-based cutting fluid product.

[0005] CN112111320A discloses a polysilicon cutting oil composition, a preparation method and its use, which mainly solves the problems of poor low-temperature continuous stability, easy corruption of water-based products, corrosion risk to equipment, and poor versatility of various materials in the prior art. The invention adopts a new polysilicon cutting oil composition, which includes the following components by weight percentage: low-viscosity base oil accounts for 85-97% of the total weight, lubricating dispersant accounts for 2-15% of the total weight, oleic acid 0.1-1%, antioxidant 0.4-1%; its preparation method includes the steps of: adding 1-2 kinds of low-viscosity base oils to a blending kettle and stirring evenly, adding other additives according to the weight percentage, stirring at room temperature for more than 1h or stirring at 40-50℃ for 20-30min until it is uniform and transparent. The invention solves the problems existing in the prior art well and can be used for industrial applications of polysilicon cutting oil in polysilicon cutting, glass grinding and cutting processes of various colored metal materials. However, the invention is mainly aimed at improving low-temperature stability and material applicability in the polysilicon wire cutting process, and does not solve the problem of powder sedimentation in the glass processing process. Summary of the invention

[0006] In order to solve the problem of powder sedimentation during glass processing, one of the objectives of the present invention is to provide a cutting oil for glass processing, which can effectively accelerate the sedimentation rate of glass powder and improve the processing quality.

[0007] A second object of the present invention is to provide a method for preparing cutting oil for glass processing corresponding to the first object of the invention.

[0008] A third object of the present invention is to provide a method for increasing the sedimentation rate of glass.

[0009] A fourth object of the present invention is to provide an application of cutting oil for glass processing corresponding to one and / or two of the objects of the invention.

[0010] To this end, in a first aspect, the present invention provides a cutting oil for glass processing, comprising a molecular formula of C 36 H 64 O 4 The dimer acid has the following structural formula:

[0011]

[0012] The present invention unexpectedly discovered that, during glass processing (such as cutting), adding the dimer acid represented by formula (I) to cutting oil can effectively increase the sedimentation rate of glass powder and improve the processing quality.

[0013] As a specific embodiment of the present invention, preferably, the content of the dimer acid in the cutting oil is 0.1-0.25% by weight.

[0014] In the present invention, when the content of the dimer acid in the cutting oil is within the above range, the sedimentation effect is more prominent and the dissolution stability of the dimer acid is better.

[0015] As a specific embodiment of the present invention, preferably, the cutting oil comprises the following components based on 100 parts by weight:

[0016] a) 2-6 parts by weight of lubricant; preferably 2-5 parts by weight;

[0017] b) 0.5-1 parts by weight of antioxidant; preferably 0.5-0.85 parts by weight;

[0018] c) 0.1-0.25 parts by weight of dimer acid; preferably 0.15-0.25 parts by weight;

[0019] d) the balance of low viscosity base oil;

[0020] The low viscosity base oil has a kinematic viscosity of 1.5 to 7.0 mm at 40°C. 2 / s.

[0021] The present invention unexpectedly discovered that when the cutting oil contains the above-mentioned specific contents of each component at the same time, the sedimentation rate of glass powder can be effectively increased and the processing quality can be improved.

[0022] As a specific embodiment of the present invention, preferably, the low viscosity base oil is selected from at least one of light white oil, L-AN 5 total loss system oil, isomerized hydrocarbon solvent oil or low viscosity PAO hydrogenated polydecene.

[0023] As a specific embodiment of the present invention, preferably, the lubricant is selected from at least one of soybean oil, oxidized rapeseed oil, complex ester or branched polymer ester. Preferably, the branched polymer ester is polymer ester GY-10, and / or the complex ester is complex ester PRIOLUBE1929; and / or

[0024] The kinematic viscosity of the lubricant is 5 to 150 mm at 100°C. 2 / s.

[0025] As a specific embodiment of the present invention, preferably, the antioxidant is selected from at least one of a hindered phenol antioxidant or an aromatic amine antioxidant, and preferably, the hindered phenol antioxidant is selected from at least one of a monophenol, an alkyl polyphenol or a thiobisphenol.

[0026] To this end, in a second aspect, the present invention provides a method for preparing cutting oil for glass processing, comprising the following steps: based on 100 parts by weight of the cutting oil, adding a low-viscosity base oil into a blending kettle, and continuing to add 2-6 parts by weight of a lubricant, 0.5-1 parts by weight of an antioxidant and 0.1-0.25 parts by weight of a dimer acid and stirring until uniform and transparent to obtain a cutting oil product.

[0027] As a specific embodiment of the present invention, preferably, the stirring conditions are: temperature 35-45°C, time more than 45 minutes, preferably 45 minutes to 2 hours.

[0028] To this end, in a third aspect, the present invention provides a method for increasing the sedimentation rate of glass, wherein the cutting oil or the cutting oil prepared by the above preparation method is added during the glass processing, preferably during the glass cutting process.

[0029] According to this method, during the glass cutting process, the sedimentation rate of glass powder can be effectively increased by adding dimer acid to the cutting oil originally used.

[0030] To this end, in a fourth aspect, the present invention provides an application of the above-mentioned cutting oil or the cutting oil prepared by the above-mentioned preparation method in a glass cutting process.

[0031] The advantages of the present invention are:

[0032] (1) After adding dimer acid to the cutting oil for glass processing provided by the present invention, the sedimentation rate of glass powder by the cutting oil during the glass processing is effectively increased, thereby improving the processing quality.

[0033] (2) The preparation method of the cutting oil provided by the present invention is simple to operate and has low cost.

[0034] (3) The method for increasing the sedimentation rate of glass provided by the present invention can effectively increase the sedimentation rate of glass powder by adding dimer acid to the cutting oil originally used during the glass cutting process. DETAILED DESCRIPTION

[0035] The embodiments of the present invention will be described in detail below in conjunction with the examples, but those skilled in the art will appreciate that the following examples are only used to illustrate the present invention and should not be considered to limit the scope of the present invention. If no specific conditions are specified in the examples, they are carried out according to normal conditions or the conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be obtained commercially.

[0036] 1. Raw materials

[0037] Polyester GY-10, produced by Lubrizol, has a kinematic viscosity of 134.90 mm at 100°C. 2 / s;

[0038] The complex ester PRIOLUBE1929 is produced by Croda, and its kinematic viscosity at 100℃ is 120.02mm 2 / s.

[0039] Soybean oil, its kinematic viscosity at 100°C is 7.83 mm 2 / s;

[0040] Oxidized rapeseed oil, its kinematic viscosity at 100℃ is 44.38mm 2 / s;

[0041] Light white oil W1-100, its kinematic viscosity at 40°C is 2.61 mm 2 / s;

[0042] Light white oil W1-130, its kinematic viscosity at 40°C is 4.02 mm 2 / s;

[0043] L-AN 5 total loss system oil, its kinematic viscosity at 40°C is 4.42 mm 2 / s.

[0044] (II) Test methods

[0045] The sedimentation rate test method is as follows: add 80 ml of a small sample to a stoppered measuring cylinder, take 2 g of glass powder and add it to the stoppered measuring cylinder and shake it up and down for 30 seconds, observe the amount of sedimentation in milliliters at different time periods and calculate the sedimentation rate.

[0046] The kinematic viscosity is tested using the GB / T 265 method.

[0047] Example 1

[0048] (1) Prepare the following components by weight:

[0049] a) soybean oil: 3 parts by weight; b) 2,6-di-tert-butyl-p-cresol: 0.5 parts by weight; c) dimer acid: 0.15 parts by weight; d) light white oil W1-100: 96.35 parts.

[0050] (2) According to the weight proportions of the components in step (1), the light white oil W1-100 is first added to the reactor, and then the above components a), b) and c) are added to the reactor, the temperature is raised to 40° C., and the mixture is stirred for more than 45 minutes until transparent, to finally obtain a cutting oil product.

[0051] Example 2

[0052] (1) Prepare the following components in parts by weight:

[0053] a) oxidized rapeseed oil: 5 parts by weight; b) 2,6-di-tert-butyl-p-cresol: 0.75 parts by weight; c) dimer acid: 0.25 parts by weight; d) light white oil W1-130 and L-AN 5 total loss system oil (weight ratio 4:6): 94 parts by weight.

[0054] (2) According to the weight proportions of the components in step (1), light white oil W1-130 and L-AN 5 total loss system oil are first added to the reactor, and then the above components a), b) and c) are added to the reactor, the temperature is raised to 40° C., and the mixture is stirred for more than 45 minutes until transparent, to finally obtain a cutting oil product.

[0055] Example 3

[0056] (1) Prepare the following components in parts by weight:

[0057] a) Polyester GY-10: 2 parts by weight; b) Octyl / butyl diphenylamine: 0.8 parts by weight; c) Dimer acid: 0.2 parts by weight; d) Light white oil W1-100 and light white oil W1-130 (weight ratio 4:6): 97 parts by weight.

[0058] (2) According to the weight proportions of the components in step (1), light white oil W1-130 and L-AN 5 total loss system oil are first added to the reactor, and then the above components a), b) and c) are added to the reactor, the temperature is raised to 40° C., and the mixture is stirred for more than 45 minutes until transparent, to finally obtain a cutting oil product.

[0059] Example 4

[0060] (1) Prepare the following components in parts by weight:

[0061] a) polymer complex ester (PRIOLUBE1929): 4 parts; b1) octyl / butyl diphenylamine: 0.5 parts; b2) 2,6-di-tert-butyl-p-cresol: 0.3 parts; c) dimer acid: 0.2 parts; d) light white oil W1-100 and L-AN 5 total loss system oil (weight ratio 5:5): 95 parts.

[0062] (2) According to the weight proportions of the components in step (1), light white oil W1-100 and L-AN 5 total loss system oil are first added to the reactor, and then the above components a), b1), b2) and c) are added to the reactor, the temperature is raised to 40°C, and the mixture is stirred for more than 45 minutes until transparent, to finally obtain a cutting oil product.

[0063] Example 5

[0064] (1) Prepare the following components in parts by weight:

[0065] a) soybean oil: 2.5 parts; b) 2,6-di-tert-butyl-p-cresol: 0.85 parts; c) dimer acid: 0.25 parts; d) light white oil W1-130: 96.4 parts.

[0066] (2) According to the weight proportions of the components in step (1), the light white oil W1-130 is first added to the reactor, and then the above components a), b) and c) are added to the reactor, the temperature is raised to 40° C., and the mixture is stirred for more than 45 minutes until it becomes transparent, and finally a cutting oil product is obtained.

[0067] Comparative Examples 1-4

[0068] Comparative Examples 1-4 were prepared according to the steps of Example 1. The group distribution ratios of Comparative Examples 1-4 are shown in Table 1.

[0069] The corresponding performance tests were carried out on Examples 1 to 5 and Comparative Examples 1 to 4, and the obtained performance data are shown in Table 2.

[0070] Table 1

[0071]

[0072] Table 2

[0073]

[0074]

[0075] It can be seen from the data in Table 2 that the cutting oils provided in Examples 1 to 5 are non-corrosive to various metals and have good low-temperature fluidity; and compared with Comparative Examples 1-4, it can be seen that the cutting oil compositions of Examples 1 to 5 have good sedimentation properties on glass, and the addition of dimer acid can effectively increase the sedimentation rate of glass powder.

[0076] The above description of the embodiments is to facilitate the understanding and application of the present invention by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the embodiments herein, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention. For example, if other functional additives are added to the preparation components of the present invention to make the composite material have corresponding properties, it is also protected by the present invention.

Claims

1. A cutting oil for glass processing, characterized in that: Including molecular formula C 36 H 64 The dimer acid of O4 has the following structural formula:

2. The cutting oil according to claim 1, characterized in that In terms of weight percentage, the content of the dimer acid in the cutting oil is 0.1-0.25%.

3. The cutting oil according to claim 1 or 2, characterized in that The cutting oil comprises the following components based on 100 parts by weight: a) 2-6 parts by weight of lubricant; preferably 2-5 parts by weight; b) 0.5-1 parts by weight of antioxidant; preferably 0.5-0.85 parts by weight; c) 0.1-0.25 parts by weight of dimer acid; preferably 0.15-0.25 parts by weight; d) the balance of low viscosity base oil; The low viscosity base oil has a kinematic viscosity of 1.5 to 7.0 mm at 40°C. 2 / s.

4. The cutting oil according to any one of claims 1 to 3, characterized in that in, The low-viscosity base oil is selected from at least one of light white oil, L-AN 5 total loss system oil, isomerized hydrocarbon solvent oil, or low-viscosity PAO hydrogenated polydecene.

5. The cutting oil according to any one of claims 1 to 4, characterized in that The lubricant is selected from at least one of soybean oil, oxidized rapeseed oil, complex ester or branched polymer ester. Preferably, the branched polymer ester is polymer ester GY-10, and / or the complex ester is complex ester PRIOLUBE1929; and / or The kinematic viscosity of the lubricant is 5 to 150 mm at 100°C. 2 / s.

6. The cutting oil according to any one of claims 1 to 5, characterized in that The antioxidant is selected from at least one of a hindered phenol antioxidant or an aromatic amine antioxidant. Preferably, the hindered phenol antioxidant is selected from at least one of a monophenol, an alkyl polyphenol or a thiobisphenol.

7. A method for preparing cutting oil for glass processing, characterized in that: The following steps are involved: Based on 100 parts by weight of the cutting oil, add low-viscosity base oil into a blending kettle, and continue to add 2-6 parts by weight of lubricant, 0.5-1 parts by weight of antioxidant and 0.1-0.25 parts by weight of dimer acid and stir until uniform and transparent to obtain a cutting oil product.

8. The preparation method according to claim 7, characterized in that: The stirring conditions are: temperature 35-45°C, time more than 45 min, preferably 45 min to 2 h.

9. A method for increasing the sedimentation rate of glass, characterized in that: During glass processing, preferably during glass cutting, the cutting oil according to any one of claims 1 to 6 or the cutting oil prepared by the preparation method according to any one of claims 7 to 8 is added.

10. Use of the cutting oil according to any one of claims 1 to 6 or the cutting oil prepared by the preparation method according to any one of claims 7 to 8 in a glass cutting process.

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