阅读说明：本技术 一种发动机清洗剂及其制备方法 (Engine cleaning agent and preparation method thereof ) 是由 邵将 王亚君 于 2019-11-21 设计创作，主要内容包括：本发明公开了一种发动机清洗剂及其制备方法,由下列重量配比的原料制备制成：二丙二醇乙醚32-60份、二氯甲烷20-40份、乙醇16-23份、脂肪醇聚氧乙烯醚15-18份、三氯乙烯14-16份、缓蚀剂十六烷胺1-2份、抗磨添加剂硼酸钙0.5-2份、金属钝化剂N.N’-二亚水基丙二胺0.5-2份、表面活化剂十二烷基磺酸钠0.1-1份。其制备简单,可有效的清除汽车发动机内物质,延长车辆使用寿命,且清洗后无需加入保护剂,也不会出现曲轴油封及气门室盖四周漏油现象。(The invention discloses an engine cleaning agent and a preparation method thereof, wherein the engine cleaning agent is prepared from the following raw materials in parts by weight: 32-60 parts of dipropylene glycol ether, 20-40 parts of dichloromethane, 16-23 parts of ethanol, 15-18 parts of fatty alcohol-polyoxyethylene ether, 14-16 parts of trichloroethylene, 1-2 parts of corrosion inhibitor hexadecylamine, 0.5-2 parts of antiwear additive calcium borate, 0.5-2 parts of metal deactivator N.N' -methylene propylene diamine and 0.1-1 part of surfactant sodium dodecyl sulfate. The cleaning agent is simple to prepare, can effectively remove substances in an automobile engine, prolongs the service life of the automobile, does not need to be added with a protective agent after being cleaned, and does not have the phenomenon of oil leakage around a crankshaft oil seal and a valve chamber cover.)

1. The engine cleaning agent and the preparation method thereof are characterized by being prepared from the following raw materials in parts by weight: 32-60 parts of dipropylene glycol ether, 20-40 parts of dichloromethane, 16-23 parts of ethanol, 15-18 parts of fatty alcohol-polyoxyethylene ether, 14-16 parts of trichloroethylene, 1-2 parts of corrosion inhibitor hexadecylamine, 0.5-2 parts of antiwear additive calcium borate, 0.5-2 parts of metal deactivator N.N' -methylene propylene diamine and 0.1-1 part of surfactant sodium dodecyl sulfate.

2. The engine cleaning agent and the preparation method thereof as claimed in claim 1, wherein the engine cleaning agent and the preparation method thereof comprises the following steps:

(1) adding dipropylene glycol ether, dichloromethane, ethanol, fatty alcohol-polyoxyethylene ether, trichloroethylene, a corrosion inhibitor hexadecylamine, an antiwear additive calcium borate, a metal passivator N.N' -methylene propylene diamine and a surface active agent sodium dodecyl sulfate into a reaction tank in sequence, heating to 40-60 ℃, and stirring at a constant temperature for 0.8-1.4h to fully fuse all the raw materials;

(2) adding an alkaline solution, adjusting the pH value, measuring the pH value of the product in the reaction tank by using standard test paper, and stopping adding the alkaline solution when the pH value is 7.

Technical Field

The invention relates to the field of preparation of cleaning agents, in particular to an engine cleaning agent and a preparation method thereof.

Background

The cleaning agent for the interior of the engine is a product developed for solving the problem of oil sludge, colloid, carbon deposition, paint film, dirt and other deposits formed in the lubricating system, consists of a plurality of components with very strong cleaning capability, and is an additive capable of automatically cleaning the internal system of the lubricating system. The cleaning agent for the interior of the engine is added into the crankcase of the engine, and flows along with engine oil during the operation of the engine, so that the cleaning process can be completed, the colloid can be dissolved, and the adhered sediments become loose and then fall off. Paint film, carbon deposit, oil sludge and other deposits on piston rings, piston skirt portions and the like can be thoroughly removed. The cleaned deposits can be filtered by an oil filter along with the circulation of the oil or deposited in an oil pan and removed together when the oil filter and the oil pan are replaced and cleaned.

The existing engine cleaning method is to pour the cleaning agent into the engine oil tank and then to run for about 20 minutes to clean, and because the cleaning time is too short and the cleaning steps are too simple, the cleaning effect is not ideal. The existing cleaning agent basically takes a solvent as a main body and is assisted with other chemicals, and has the advantages of quick and labor-saving engine cleaning, and the defects that the solvent used by some formulas is toxic, and some patents have no actual use methods, so that maintenance personnel of the engine cannot perform cleaning work; the solvents used in most patents are the cellosolve family of products, such as: the use of ethylene glycol butyl ether, ethylene glycol monobutyl ether, propylene glycol methyl ether, ethylene glycol monobutyl ether, and polyethylene oxide-propylene oxide monobutyl ether, as a large amount of these cellosolve solvents, is liable to be flammable and dangerous.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the engine cleaning agent and the preparation method thereof, the preparation is simple, substances in an automobile engine can be effectively removed, the service life of a vehicle is prolonged, no protective agent needs to be added after cleaning, and the phenomena of oil leakage around a crankshaft oil seal and a valve chamber cover can be avoided.

In order to achieve the aim of the invention, the invention adopts the specific scheme that:

an engine cleaning agent and a preparation method thereof are prepared from the following raw materials in parts by weight: 32-60 parts of dipropylene glycol ether, 20-40 parts of dichloromethane, 16-23 parts of ethanol, 15-18 parts of fatty alcohol-polyoxyethylene ether, 14-16 parts of trichloroethylene, 1-2 parts of corrosion inhibitor hexadecylamine, 0.5-2 parts of antiwear additive calcium borate, 0.5-2 parts of metal deactivator N.N' -methylene propylene diamine and 0.1-1 part of surfactant sodium dodecyl sulfate.

Further, the engine cleaning agent and the preparation method thereof comprise the following steps:

(1) adding dipropylene glycol ether, dichloromethane, ethanol, fatty alcohol-polyoxyethylene ether, trichloroethylene, a corrosion inhibitor hexadecylamine, an antiwear additive calcium borate, a metal passivator N.N' -methylene propylene diamine and a surface active agent sodium dodecyl sulfate into a reaction tank in sequence, heating to 40-60 ℃, and stirring at a constant temperature for 0.8-1.4h to fully fuse all the raw materials;

(2) adding an alkaline solution, adjusting the pH value, measuring the pH value of the product in the reaction tank by using standard test paper, and stopping adding the alkaline solution when the pH value is 7.

The invention has the beneficial effects that:

the cleaning agent is simple to prepare, can effectively remove substances in an automobile engine, prolongs the service life of the automobile, does not need to be added with a protective agent after being cleaned, and does not have the phenomenon of oil leakage around a crankshaft oil seal and a valve chamber cover.

Detailed Description

The present invention is further described below by way of specific examples, but the present invention is not limited to only the following examples. Variations, combinations, or substitutions of the invention, which are within the scope of the invention or the spirit, scope of the invention, will be apparent to those of skill in the art and are within the scope of the invention.