Methanol gasoline rubber anti-swelling agent

Abstract

The invention relates to a methanol gasoline rubber anti-swelling agent and belongs to the field of alcohol ether fuel additives. The methanol gasoline rubber anti-swelling agent consists of 30 to 60 percent of fatty alcohol, 10 to 30 percent of calcium petroleum sulfonate, 8 to 20 percent of sulfonate, 7 to 18 percent of synthetic calcium sulfonate salt and 2 to 15 percent of alkylphenol calcium salt in percentage by weight. 0.012 to 0.028 percent of industrial product of the methanol gasoline rubber anti-swelling agent is added in methanol gasoline with different brands of between M15 and M100 and can reduce the volume swelling of the rubber by 40 to 46 percent. After methanol gasoline added with the methanol gasoline rubber anti-swelling agent is used in an automobile, the driving journey is 50,000 kilometers; compared with the methanol gasoline without methanol gasoline rubber anti-swelling agent, the test shows that the volume swelling of the rubber is reduced by 45 to 50 percent. Compared with lead-free gasoline, the test shows that the swelling rate of the methanol gasoline added with the methanol gasoline rubber anti-swelling agent is equal to that of the lead-free gasoline and achieves the equivalent effect with the lead-free gasoline. The methanol gasoline rubber anti-swelling agent has the characteristics of low cost, easy preparation, convenient use, good effect and the like.

Description

technical field [0001] The invention belongs to an alcohol ether fuel additive, in particular to a methanol gasoline rubber anti-swelling agent. Background technique [0002] With the continuous rapid development of the transportation industry, the shortage of petroleum resources forces people to turn to the development and application of alternative fuels. For this reason, countries all over the world have invested a large amount of manpower and material resources in the research of methanol gasoline. As a clean, cheap and efficient gasoline substitute, methanol gasoline has been valued for its abundant sources, and is considered to be the most promising alternative fuel for vehicles. However, methanol gasoline will corrode, swell, become sticky, brittle or soften the rubber and plastic of many parts of the automobile fuel system, and the fiber gasket will gradually soften and cause oil leakage. In order to solve this problem, there have been many research papers and pate...

AI Technical Summary

Problems solved by technology

However, for cars that generally use gasoline alone at present, it is necessary to modify and replace parts to increase costs and bring inconvenience to users; such as the 10th issue of "Automobile Technology and Materials" magazine in 2003, the author is Yao Ying from the Department of Automobile and Traffic Engineering of Xihua University , Zeng Dongjian, titled "Experimental Research on the Swellability of Methanol Gasoline to Non-metallic Parts in the Fuel Supply System", introduced that the use of medium-ratio methanol gasoline is widely used in automobiles, and some non-metallic parts should be replaced with materials that are resistant to methanol swelling. This article has very important use value for the future development of methanol vehicles to use methanol swelling resistant materials, and the promotion is of great significance

But directly use methanol gasoline to existing automobile at present and still can't bring into play effect; Such as publication number CN101280229A " anti-metal corrosion and the alcohol fuel additive that suppresses rubber swelling " invention patent, have improvement metal corrosion and suppress rubber swelling effect, but fly in the ointment's fly in the ointment is Contain phytic acid ester and dipentene composition in the additive, because the existence of phosphorus element limits use, the addition of dipentene is unfavorable for the stability of additive simultaneously; As publication number CN101285010A " a kind of multifunctional alcohol fuel additive "Invention patent, which has important effects on methanol gasoline, such as dissolution aid, anticorrosion, and power improvement

However, in terms of anti-swelling of rubber, only the plasticizer dimethyl phthalate is added, which can have an anti-corrosion effect on plastics, but the anti-swelling effect of single-component rubber is not very ideal