Fuel oil steam isolation coating for carrying traffic oil tank and preparation method of same

A technology for isolating coatings and fuel vapor, applied in the field of materials, can solve problems such as fuel vapor leakage and potential safety hazards

Active Publication Date: 2022-02-15
中昊北方涂料工业研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the fuel vapor caused by the aging of the oil-resistant sealant in the assembly gap after the fuel tank of the vehicle has been used for a period of time, and the fuel tank structure is prone to large deformation under frequent vibration and strong impact, which makes the original sealing system produce subtle defects. Leakage, diffusion, and thus easy to cause various safety hazards, develop fuel vapor isolation coatings with excellent comprehensive performance, master relevant theoretical foundations and key technologies, break through corresponding technical difficulties, complete functional research on fuel vapor isolation coatings, and form batches , stable production and supply capacity

Method used

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  • Fuel oil steam isolation coating for carrying traffic oil tank and preparation method of same
  • Fuel oil steam isolation coating for carrying traffic oil tank and preparation method of same
  • Fuel oil steam isolation coating for carrying traffic oil tank and preparation method of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (1) Preparation of component A of the fuel vapor isolation coating for transportation fuel tanks: Add 0.5kg of wetting agent BYK-330 and 0.5kg of leveling agent BYK- 320. 0.4 kg of defoamer BYK-066N and 11.6 kg of diluent (xylene: cyclohexanone: butanone = 2:1:1) were stirred at high speed to disperse evenly, and the material was filtered to obtain component A.

[0048] Wherein the preparation method of self-made polyurethane modified epoxy resin is: take 18kg difunctional polyether polyol D210 and 12kg trifunctional polyether polyol G303 and add in the reaction kettle for dehydration treatment, add 14.6kg epoxy resin E-44 to increase Polymer crosslinking point, fully stirred evenly, put 24.6kg polyisocyanate IPDI into the reactor, add 0.7kg catalyst dibutyltin dilaurate, react at 60-80°C for 5 hours, and obtain isocyanate group-terminated polyurethane prepolymer. After the temperature drops to normal temperature, put 17.7kg of glycidyl alcohol into the reaction kettle,...

Embodiment 2

[0051] (1) Preparation of component A of the fuel vapor isolation coating for transportation fuel tanks: Add 0.6 kg of wetting agent BYK-310 and 0.6 kg of leveling agent BYK- 358N, 0.5kg of defoamer BYK-A530 and 8.3kg of diluent (xylene:cyclohexanone:butanone=2:1:1) were stirred at high speed to disperse evenly, and the material was filtered to obtain component A.

[0052] Wherein the preparation method of self-made polyurethane modified epoxy resin is: take 15kg difunctional polyether polyol D210 and 15kg trifunctional polyether polyol G303 and add in the reaction kettle for dehydration treatment, add 13.8kg epoxy resin E-44 to increase Polymer crosslinking point, fully stirred evenly, put 25.2kg polyisocyanate IPDI into the reactor, add 0.7kg catalyst dibutyltin dilaurate, react at 60-80°C for 5 hours, and obtain isocyanate group-terminated polyurethane prepolymer. After the temperature drops to normal temperature, put 16.7kg of glycidyl alcohol into the reaction kettle, add...

Embodiment 3

[0055] (1) Preparation of component A of the fuel vapor isolation coating for transportation fuel tanks: Add 0.7kg of wetting agent BYK-330 and 0.7kg of leveling agent BYK- 358N, 0.4kg of defoamer BYK-066N and 8.2kg of diluent (xylene: cyclohexanone: butanone = 2:1:1) were stirred at high speed to disperse evenly, and the material was filtered to obtain component A.

[0056] The preparation method of self-made polyurethane modified epoxy resin is as follows: take 24kg of difunctional polyether polyol D204 and 6kg of trifunctional polyether polyol G4030 and add them to the reaction kettle for dehydration treatment, and add 15kg of epoxy resin E-44 to increase the polymerization rate. Stir well to obtain the crosslinking point of the compound, put 23.4kg of polyisocyanate IPDI into the reactor, add 0.9kg of catalyst dibutyltin dilaurate, and react at 60-80°C for 5 hours to obtain isocyanate group-terminated polyurethane prepolymer. After the temperature drops to normal temperatu...

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PUM

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Abstract

According to the invention, a fuel steam isolation coating with excellent comprehensive performance is developed mainly aiming at the requirement of a carrying traffic oil tank on the air tightness of fuel steam. The coating can adapt to harsh working conditions and multi-phase corrosion environments of the oil tank, and can provide lasting protection and isolation effects. The fuel oil steam isolation coating is composed of a component A and a component B, wherein the component A is prepared from polyurethane modified epoxy resin, a wetting agent, a flatting agent, a defoaming agent and a diluent, and the polyurethane modified epoxy resin is self-made and is prepared from polyether polyol, epoxy resin, polyisocyanate, glycidol, a catalyst and a mixed solvent through a specific synthesis process; and the component B consists of polyether amine resin, polyamide resin and a diluent.

Description

technical field [0001] The invention relates to a coating, in particular to a fuel vapor isolation coating with excellent comprehensive performance and a preparation method thereof, belonging to the field of materials. Background technique [0002] With the rapid development of my country's economy, the transportation industry has also developed rapidly. Airplanes, automobiles, etc. have become an indispensable means of transportation in people's lives. Fuel tank is the main component of transport transportation, and its oil storage capacity determines the endurance, which has attracted more and more attention. It is reported that the assembly gap of the transportation fuel tank is to prevent fuel leakage through oil-resistant sealant. However, after a long time of use, the oil-resistant sealant tends to age, and in the environment of frequent vibrations and shocks during the driving of the vehicle, the structure of the fuel tank will undergo large deformation, causing min...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D5/08C08G18/48C08G18/58
CPCC09D175/08C09D5/08C08G18/58C08G18/4045C08G18/4812
Inventor 刘岳麟宋欢欢王学龙李超宇李志宝侯继宗陈小庆
Owner 中昊北方涂料工业研究设计院有限公司
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