Long-acting anhydrous anti-freezing solution for automobile engine

A car engine, long-term technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., to achieve the effect of reducing emissions, prolonging service life and improving working conditions

Active Publication Date: 2020-10-30
深圳市百顺源节能科技有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the protective effect of corrosion inhibitors has strict selectivity. To achieve comprehensive protection of various metals in the cooling syst

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Long-acting anhydrous anti-freezing solution for automobile engine
  • Long-acting anhydrous anti-freezing solution for automobile engine

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1-13: Preparation of anhydrous antifreeze

[0024] Table 1: Anhydrous antifreeze formula (unit: %)

[0025]

[0026]

[0027] Preparation:

[0028] (1) Weigh propylene glycol and ethylene glycol, mix them as the base liquid, add caprylic acid to the base liquid and mix well, then add sebacic acid and stir to dissolve;

[0029] (2) Add 6-(N-allyl-1,1,2,2-tetrahydroperfluorodecyl)amine-2-mercapto-1,3,5- to the mixed solution obtained in step (1) Sodium triazine-4-thiolate, heat to about 55°C, while stirring until completely dissolved;

[0030] (3) Add dipropylene glycol dimethyl ether to the mixed solution obtained in step (2), stir to make the mixture uniform, and prepare a clear and transparent anhydrous antifreeze.

Example Embodiment

[0031] Example 2: Anhydrous antifreeze corrosion test

[0032] Using the glassware corrosion measurement method (SH / T 0085-2000), test pieces processed into red copper, brass, steel, cast iron, cast aluminum, and solder respectively, are polished and cleaned, weighed, and then completely immersed in the air flow rate of In the antifreeze solution of (100±10)mL / min, test (336±2)h at 88±2℃. Three parallel test strips are used for each antifreeze solution. After the test, the test strips are taken out, cleaned and weighed again, and the average mass loss of the test strips before and after the test is recorded.

[0033] Table 2: Weight loss of test piece (unit: mg)

[0034] Example Red copper brass steel cast iron Cast aluminum Solder 12.22.70.91.814.09.1 22.62.50.71.713.58.6 32.32.20.81.513.48.7 42.02.20.51.413.58.5 51.82.10.61.113.48.3 61.62.00.50.913.28.3 71.51.90.50.813.08.3 815.714.57.910.333.936.5 911.410.96.28.426.726.1 109.18.84.57.023.625.8 112.12.30.80.913.48.6

Example Embodiment

[0035] Example 3: Test experiment of freezing point, boiling point and foaming tendency of anhydrous antifreeze

[0036] After testing, the freezing point of the anhydrous mixture prepared in Example 1-11 is around -40°C (detection method is SH / T0090-1991), and the boiling point is higher than 190°C, around 198°C (detection method is SH / T 0089) -1991). The foam tendency study of all samples found that the foam volume of the anhydrous antifreeze of Examples 1-10 was less than 150 mL, and the foam disappearance time was less than 5 seconds, but the anhydrous antifreeze prepared in Example 11 had a foam volume of 292 ml , The disappearance time of foam is more than 10 seconds (detection method is SH / T 0066-2002).

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Boiling pointaaaaaaaaaa
Login to view more

Abstract

The invention provides a long-acting anhydrous cooling liquid for an automobile engine. The cooling liquid is prepared from the following components in percentage by mass: 92 to 95 percent of a base liquid, 2.2 to 3.7 percent of 6-(N-allyl-1, 1, 2, 2-tetrahydroperfluorodecyl) amino-2-sulfydryl-1, 3, 5-triazine-4-sodium mercaptide, 1.2 to 1.8 percent of medium-chain fatty acid, 2.5 to 3.5 percent of dipropylene glycol dimethyl ether and 0.002 to 0.004 percent of a coloring agent, wherein the basic liquid is propylene glycol or/and ethylene glycol, and the medium-chain fatty acid is a mixed acidof monobasic fatty acid and dibasic fatty acid. The corrosion inhibitor is used for preventing metal corrosion; all parts, capable of making contact with a medium, of the whole system can be protected; the heat conduction capacity of the cooling liquid is good, local overheating and friction force of parts are reduced, fuel oil is combusted more completely, the efficiency of the fuel oil is improved, and the oil amount is reduced.

Description

technical field [0001] The invention belongs to the technical field of engine antifreeze, and in particular relates to a long-acting anhydrous antifreeze for automobile engines and a preparation method thereof. Background technique [0002] Engine antifreeze is a coolant containing special additives. It is mainly used in liquid-cooled engine cooling systems. The antifreeze has excellent properties such as antifreezing in winter, anti-boiling in summer, anti-scale and anti-corrosion all year round. Common engine antifreezes include water-ethylene glycol type antifreeze and water-propylene glycol type antifreeze. However, the boiling point of water-containing antifreeze is usually not higher than 110°C, and there is a problem that it is easy to "boil the pot". Compared with water-containing antifreeze, anhydrous engine antifreeze has many advantages such as high boiling point, low vapor pressure, no scale, and fast temperature rise, and is gradually replacing traditional water...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C09K5/20
CPCC09K5/20
Inventor 柯鹏方娜方拓赵之棋潘锡军
Owner 深圳市百顺源节能科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap