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Nylon composite material with low fuel oil permeability rate used for fuel oil tank and preparation method thereof

A nylon composite material, fuel permeability technology, used in gasoline drums, transportation and packaging, bicycle accessories, etc., can solve the problems of difficult and unsatisfactory fuel permeability, and achieve excellent gasoline barrier performance and good blow molding performance. , the effect of large market value

Active Publication Date: 2010-03-03
辰东意普万新材料(广东)有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The nylon material prepared by the above-mentioned technical scheme has a fuel permeability that is difficult to reach 2 g / 24 hours stipulated in the national standard "GB 20998-2007 Motorcycle and Moped Fuel Evaporative Pollutant Emission Limits and Measurement Methods", and cannot adapt to market demands. demand; in addition, its low-temperature impact resistance is equivalent to or only 1-2 times higher than that of ordinary nylon 6, which is far lower than the low-temperature impact strength of this technology, which is an order of magnitude higher than that of ordinary nylon, and cannot meet the requirements of withstand conditions in severe cold climates. High Vibration Motorcycle Fuel Tank Material Requirements

Method used

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  • Nylon composite material with low fuel oil permeability rate used for fuel oil tank and preparation method thereof
  • Nylon composite material with low fuel oil permeability rate used for fuel oil tank and preparation method thereof
  • Nylon composite material with low fuel oil permeability rate used for fuel oil tank and preparation method thereof

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with specific embodiments, but the protection scope of the present invention is not limited thereto.

[0038]With the continuous improvement of environmental protection and safety requirements in various countries, countries around the world have continuously revised the evaporative emission indicators of vehicle fuel systems, and the requirements for the seepage resistance of plastic fuel tanks have become more and more stringent. For example, in Europe, the average fuel loss per fuel tank (40°C, 56 days) has been reduced from no more than 20 grams / 24 hours to 2 grams / 24 hours. "GB 20998-2007 Emission Limits and Measurement Methods of Fuel Evaporative Pollutants from Motorcycles and Mopeds" also puts forward a requirement of 2 g / 24 hours for vehicle emissions. In addition, the low-temperature impact resistance performance index required by vehicle gasoline fuel tank materials is very high. Although th...

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Abstract

The invention provides a nylon composite material with low fuel oil permeability rate used for a fuel oil tank, which is characterized by containing a main material, a modifier, an elastomer and an auxiliary agent, wherein the main material is selected from a nylon 6 copolymer, a nylon 66 copolymer, a nylon 6 / 66 copolymer or a random mixture thereof, the modifier is selected from ABS, polyethylene, PC, PPS, PPO, PBT, PET or a random mixture thereof, the elastomer is selected from POE, TPE, EPDM or a random mixture thereof, and the auxiliary agent contains a temperature-resistant anti-aging agent, a lubricant and a nucleating agent. The nylon composite material with low fuel oil permeability rate used for the fuel oil tank, which is provided by the invention, has favorable blow-molding forming performance and very large market value, the fuel oil permeability rate is below 1.7g / m<2>*24h, and the shock-resistance strength at low temperature (negative 40 DEG C) reaches 65-95kJ / m<2>.

Description

technical field [0001] The invention relates to a nylon composite material for a fuel tank, in particular to a low fuel permeability nylon composite material for a fuel tank and a preparation method thereof. Background technique [0002] The production of modern automobiles and motorcycles requires higher speed per hour and lower energy consumption. The main countermeasure is to use lighter engineering plastics instead of heavy metal materials to make motorcycle parts. Fuel tank is an important part of automobiles and motorcycles. It is used to store fuel gasoline. It is important for automobiles and motorcycles to achieve the above goals by using lightweight engineering plastic polyethylene materials or high-performance polymer materials instead of metal materials to manufacture fuel tanks. meaning. [0003] The main material of the polyethylene fuel tank is high-density polyethylene (HDPE), and prior art such as CN1075489A, CN1036465C, CN1036596C, CN101081543A etc. Compa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L77/02C08L77/06C08L55/02C08L23/06C08L69/00C08L81/02C08L71/12C08L67/02C08L23/00C08L23/16C08K13/02B62J35/00
Inventor 高原梁效礼高伟杨冬黄俊辉
Owner 辰东意普万新材料(广东)有限公司
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