Cutting oil for glass processing and its preparation method and application

Abstract

The application provides a cutting oil for glass processing, which comprises a dimer acid with a molecular formula of C 36 H 64 O4, and a structure formula is shown as follows. The cutting oil for glass processing provided by the application effectively improves the settling rate of glass powder in the glass processing process after the dimer acid is added. The application further provides a preparation method and application of the cutting oil for glass processing, and a method for improving the settling rate of glass.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of cutting oil, and particularly relates to a cutting oil for glass cutting, a preparation method and application thereof, and a method for improving glass settling rate. BACKGROUND

[0002] Cutting refers to a machining method for cutting off excess material from a workpiece using a cutting tool to obtain a part with required geometric shape, size accuracy and surface roughness. In the cutting machining of glass, cutting fluid or cutting oil is usually used in combination, the purpose of which is to prolong the service life of the tool, improve the surface accuracy of the machined workpiece, reduce tool wear, and reduce the temperature in the cutting zone, so as to improve the machining efficiency.

[0003] In some glass machining processes, a large amount of fine powder particles are generated due to the grinding of the tool. Such glass powder has good suspension and is not easy to settle and separate. The large amount of powder adhering to the blade makes the blade less sharp, which seriously affects the machining speed, and also causes the brightness and precision of the machined product to be affected, and even greatly increases the rate of defective products.

[0004] CN115678658A discloses a glass cutting fluid with high settling performance, which belongs to the technical field of glass machining. The components and their weight percentages of the glass cutting fluid are as follows: extreme pressure additive 5-20%, lubricant 10-20%, anti-rust agent 5-10%, modified cationic settling agent 5-15%, polyol 5-20%, bactericide 1-5%, and deionized water 40-70%. The modified cationic settling agent prepared by synthesis in the glass cutting fluid with high settling performance can quickly settle glass powder, solid particles and metal ions, and the flocculent sediment is not suspended or caked, which reduces the scratching of the surface of optical glass, has excellent lubricity, is non-toxic and does not harm the skin, and is green and environmentally friendly. However, the present application relates to a water-based cutting fluid product.

[0005] CN112111320A discloses a polysilicon cutting oil composition, a preparation method and its use, mainly solving the problems of poor low temperature stability, water-based product easy to spoil, corrosion risk to equipment and poor versatility of various materials in the prior art. The invention adopts a new polysilicon cutting oil composition, which comprises the following components by weight percentage: low viscosity base oil 85-97%, lubricating dispersant 2-15%, oleic acid 0.1-1%, antioxidant 0.4-1%. The preparation method comprises the following steps: adding 1-2 kinds of low viscosity base oil into a blending kettle and stirring uniformly, adding other additives according to the weight percentage, and stirring at room temperature for more than 1h or at 40-50℃ for 20-30min until uniform and transparent. The invention solves the problems in the prior art and can be used in the industrial application of polysilicon cutting oil in polysilicon cutting, glass grinding and various metal material cutting processes. However, the invention mainly aims to improve the low temperature stability and material applicability in polysilicon wire cutting processing, and does not solve the problem of powder settlement in glass processing. SUMMARY

[0006] To solve the problem of processing powder settlement in glass processing, one of the purposes of the present application is to provide a cutting oil for glass processing, which can effectively accelerate the glass powder settlement rate and improve the processing quality.

[0007] The second purpose of the present application is to provide a preparation method of the cutting oil for glass processing corresponding to the first purpose.

[0008] The third purpose of the present application is to provide a method for improving the glass settlement rate.

[0009] The fourth purpose of the present application is to provide an application of the cutting oil for glass processing corresponding to the first and / or second purposes.

[0010] To this end, in a first aspect, the present application provides a cutting oil for glass processing, comprising a dimer acid with a molecular formula of C 36 H 64 O4, and its structural formula is as follows:

[0011]

[0012] The present application unexpectedly found that during glass processing (such as cutting), the addition of dimer acid represented by formula (I) in the cutting oil can effectively improve the settlement rate of glass powder and improve the processing quality.

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

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

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

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

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

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

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

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

[0021] The present application unexpectedly found that after the cutting oil simultaneously contains each component in the above specific content, the rate of settling glass powder can be effectively improved, and the processing quality is improved.

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

[0023] As a specific embodiment of the present application, preferably, the lubricant is selected from at least one of soybean oil, oxidized rape oil, complex ester, or branched polymeric ester, preferably the branched polymeric ester is polymeric ester GY-10, and / or the complex ester is complex ester PRIOLUBE 1929; and / or

[0024] The lubricant has a kinematic viscosity of 5-150 mm 2 / s at 100°C.

[0025] As a specific embodiment of the present application, preferably, the antioxidant is selected from at least one of hindered phenol antioxidant or aromatic amine antioxidant, preferably the hindered phenol antioxidant is selected from at least one of monophenol, alkyl polyphenol, or thio-bisphenol.

[0026] To this end, the second aspect of the present application provides a preparation method of cutting oil for glass processing, comprising the following steps: adding low viscosity base oil into a mixing kettle, taking the cutting oil as 100 parts by weight, and continuously adding 2-6 parts by weight of lubricant, 0.5-1 part by weight of antioxidant and 0.1-0.25 part by weight of dimer acid and stirring until uniform and transparent to obtain a cutting oil product.

[0027] As a specific embodiment of the present application, preferably, the stirring conditions are: temperature 35-45℃, time 45min or more, preferably 45min to 2h.

[0028] To this end, the third aspect of the present application provides a method for improving the settling rate of glass, which comprises adding the above-mentioned cutting oil or the cutting oil prepared by the above-mentioned preparation method in the glass processing process, preferably in the glass cutting process.

[0029] According to this method, the settling rate of glass powder can be effectively improved by adding dimer acid to the original cutting oil used in the glass cutting process.

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

[0031] The present application has the following advantages:

[0032] (1) The cutting oil for glass processing provided by the present application effectively improves the settling rate of glass powder in the glass processing process after adding dimer acid, thereby improving the processing quality.

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

[0034] (3) The method for improving the settling rate of glass provided by the present application can effectively improve the settling rate of glass powder by adding dimer acid to the original cutting oil used in the glass cutting process. DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described in detail below with reference to the examples, but those skilled in the art will understand that the following examples are only used to illustrate the present application and should not be regarded as limiting the scope of the present application. The specific conditions are not specified in the examples, and the conventional conditions or the conditions recommended by the manufacturer are used. The reagents or instruments used are not specified by the manufacturer, and are all conventional products that can be obtained by purchase.

[0036] (I) Raw materials

[0037] Polymeric ester GY-10, produced by Lubrizol Company, with a 100℃ kinematic viscosity of 134.90mm 2 / s;

[0038] Complex ester PRIOLUBE 1929, produced by the company Croda, having a kinematic viscosity at 100°C of 120.02 mm 2 / s.

[0039] Soybean oil, having a kinematic viscosity at 100°C of 7.83 mm 2 / s;

[0040] Oxidized rape oil, having a kinematic viscosity at 100°C of 44.38 mm 2 / s;

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

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

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

[0044] (ii) Test methods

[0045] The sedimentation rate test method is as follows: 80 ml of the sample is added to a graduated cylinder with a stopper, 2 g of glass powder is added to the graduated cylinder, which is shaken up and down for 30 s, and the sedimentation drop in milliliters is observed at different time periods and the sedimentation rate is calculated.

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

[0047] Example 1

[0048] (1) The following components are prepared according to weight fractions:

[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 fractions of the components in step (1), the light white oil W1-100 is first added to the reaction kettle, and then the above-mentioned components a), b) and c) are added to the reaction kettle, heated to 40°C, and fully stirred for more than 45 mins until transparent, finally obtaining the cutting oil product.

[0051] Example 2

[0052] (1) The following components are prepared according to weight fractions:

[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 fractions of each component in step (1), first, light white oil W1-130 and L-AN 5 total loss system oil were added into the reaction kettle, then the above-mentioned a), b) and c) components were added into the reaction kettle, heated to 40°C, and fully stirred for more than 45 mins until transparent, finally the cutting oil product was obtained.

[0055] Example 3

[0056] (1) The following components were prepared according to the weight fractions:

[0057] a) Polymeric ester 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 fractions of each component in step (1), first, light white oil W1-130 and L-AN 5 total loss system oil were added into the reaction kettle, then the above-mentioned a), b) and c) components were added into the reaction kettle, heated to 40°C, and fully stirred for more than 45 mins until transparent, finally the cutting oil product was obtained.

[0059] Example 4

[0060] (1) The following components were prepared according to the weight fractions:

[0061] a) High molecular complex ester (PRIOLUBE 1929): 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 fractions of each component in step (1), first, light white oil W1-100 and L-AN 5 total loss system oil were added into the reaction kettle, then the above-mentioned a), b1), b2) and c) components were added into the reaction kettle, heated to 40°C, and fully stirred for more than 45 mins until transparent, finally the cutting oil product was obtained.

[0063] Example 5

[0064] (1) The following components were prepared according to the weight fractions:

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

[0066] (2) According to the weight parts of each component in step (1), first, the light white oil Wl-130 is added into the reaction kettle, then the components a), b) and c) are added into the reaction kettle, heated to 40°C, and fully stirred for more than 45 mins until transparent, finally the cutting oil product is obtained.

[0067] Comparative Examples 1-4

[0068] Comparative Examples 1-4 are prepared according to the steps of Example 1, and the allocation ratio of each component of Comparative Examples 1-4 is shown in Table 1.

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

[0070] Table 1

[0071]

[0072] Table 2

[0073]

[0074]

[0075] From the data in Table 2, it can be seen that the cutting oil provided by Examples 1-5 has no corrosion to various metals and good low-temperature fluidity; and compared with Comparative Examples 1-4, it can be seen that the cutting oil composition of Examples 1-5 has good settling property to glass, and the addition of dimer acid can effectively improve the settling rate of glass powder.

[0076] The above description of the examples is for the purpose of enabling and providing a person skilled in the art to understand and apply the present application. Those skilled in the art can easily make various modifications to these examples, and apply the general principles described herein to other examples without creative labor. Therefore, the present application is not limited to the examples herein, and improvements and modifications made by those skilled in the art without departing from the scope of the present application should be within the scope of protection of the present application. For example, the addition of other functional additives in the preparation of the components of the present application makes the composite material have corresponding properties, which is also protected by the present application.

Claims

1. A cutting oil for glass processing, characterized by, comprising the following components: a) 2-6 parts by weight of a lubricant; b) 0.5-1 parts by weight of an antioxidant; c) 0.1-0.25 parts by weight of a dimer acid; d) the balance of a low viscosity base oil; wherein the low viscosity base oil has a kinematic viscosity at 40°C of 1.5 to 7.0 mm 2 / s; the dimer acid has the following structural formula: （I）； the lubricant is selected from at least one of soybean oil, oxidized rape oil, a complex ester or a branched polymeric ester.

2. The cutting oil according to claim 1, characterized in that, comprising the following components: a) 2-5 parts by weight of a lubricant; and / or b) 0.5-0.85 parts by weight of an antioxidant; and / or c) 0.15-0.25 parts by weight of a dimer acid; and / or d) the balance of a low viscosity base oil.

3. The cutting oil according to claim 1, characterized in that, wherein, the low viscosity base oil is selected from at least one of light white oil or L~AN 5 total loss system oil, isomeric hydrocarbon solvent oil or low viscosity PAO hydrogenated polydecene.

4. The cutting oil according to any one of claims 1 to 3, characterized in that, The lubricant has a kinematic viscosity at 100°C of 5 to 150 mm 2 / s.

5. The cutting oil according to any one of claims 1 to 3, characterized in that, the branched polymeric ester is polymeric ester GY-10 and / or the complex ester is complex ester PRIOLUBE 1929.

6. The cutting oil according to any one of claims 1 to 3, characterized in that, the antioxidant is selected from at least one of a hindered phenolic antioxidant or an aromatic amine antioxidant.

7. The cutting oil according to claim 6, characterized in that, the hindered phenolic antioxidant is selected from at least one of a monophenol, an alkyl polyphenol or a thio-bisphenol.

8. A method for producing the cutting oil for glass processing according to any one of claims 1 to 7, characterized by, comprising the following steps: adding a low viscosity base oil into a blending kettle at 100 parts by weight of the cutting oil, 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 to uniform transparency to obtain a cutting oil product.

9. The production method according to claim 8, characterized by, the stirring is at a temperature of 35-45°C for more than 45 minutes.

10. The production method according to claim 9, characterized by, the stirring is for 45 minutes to 2 hours.

11. A method of increasing the settling rate of glass, characterized by, the cutting oil of any one of claims 1-7 or the cutting oil prepared by the method of any one of claims 8-10 is added in a glass processing process.

12. The method of claim 11, wherein, the cutting oil is added in a glass cutting process.

13. Use of the cutting oil of any one of claims 1-7 or the cutting oil prepared by the method of any one of claims 8-10 in a glass cutting process.

Images