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A low-permeability and high-adhesion conductive automobile fuel pipe and its preparation method

A fuel pipe, low penetration technology, applied in chemical instruments and methods, vehicle parts, tubular articles, etc., can solve the problems of plastics that cannot be vulcanized, short service life of fuel pipes, poor fuel penetration resistance, etc., and achieves fuel penetration resistance. Good performance, high pass rate, and the effect of improving the safety of use

Active Publication Date: 2022-06-28
ZHEJIANG JUNHE RUBBER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, although the NBR structure rubber hose used in the automotive fuel system has the advantages of oil resistance and aging resistance, its resistance to fuel penetration is poor.
At the same time, many fuel pipes use rubber-plastic composites to meet the low-permeability requirements of fuel pipes. However, because the molecular weight of rubber itself is smaller than that of plastics, the molecular chains are not dense enough, and plastics cannot be vulcanized, and the surface activity of plastics is low. , relatively stable, not easy to bond with other substances, resulting in a short service life of the fuel pipe

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A low-penetration and high-adhesion conductive automobile fuel pipe, the NBR rubber layer comprises, in parts by weight, 100 parts of nitrile rubber with 45% acrylonitrile content, 30 parts of N550 carbon black, 5 parts of conductive carbon black, 1 part of liquid NBR, 10 parts of plasticizer, 1 part of 2,2,4-trimethyl-1,2-dihydroquinoline polymer, 5 parts of magnesium chloride, 1 part of modified phenolic resin, 1 part of tetrabutylphosphonium benzotriazole salt , 2 parts of triallyl n-cyanurate, 2 parts of odorless DCP; wherein the plasticizer comprises 5 parts of trioctyl trimellitate and 5 parts of dioctyl sebacate by weight;

[0048] The NBR / PVC alloy layer includes 100 parts by weight of NBR / PVC alloy, 30 parts of N550 carbon black, 5 parts of dibutoxyethyl oxalate, 2,2,4-trimethyl-1,2-dihydrogen 1 part of quinoline polymer, 1 part of N-isopropyl-N'-phenyl-p-phenylenediamine, 3 parts of magnesium oxide, 2 parts of triallyl n-cyanurate, 2 parts of odorless DCP;

...

Embodiment 2

[0057] A low-penetration and high-adhesion conductive automobile fuel pipe, the NBR rubber layer comprises, in parts by weight, 105 parts of nitrile rubber with 45% acrylonitrile content, 40 parts of N550 carbon black, 9 parts of conductive carbon black, 3 parts of liquid NBR, 15 parts of plasticizer, 1.5 parts of 2,2,4-trimethyl-1,2-dihydroquinoline polymer, 7 parts of magnesium chloride, 2 parts of modified phenolic resin, 2 parts of tetrabutylphosphonium benzotriazole salt , 3 parts of triallyl n-cyanurate, 2.5 parts of odorless DCP; wherein the plasticizer includes 8 parts of trioctyl trimellitate and 8 parts of dioctyl sebacate by weight;

[0058] The NBR / PVC alloy layer includes, in parts by weight, 105 parts of NBR / PVC alloy, 40 parts of N550 carbon black, 8 parts of dibutoxyethyl oxalate, 2,2,4-trimethyl-1,2-dihydrogen 1.5 parts of quinoline polymer, 1.5 parts of N-isopropyl-N'-phenyl-p-phenylenediamine, 5 parts of magnesium oxide, 3 parts of triallyl n-cyanurate, 3 pa...

Embodiment 3

[0067] A low-penetration and high-adhesion conductive automobile fuel pipe, the NBR rubber layer includes 110 parts of nitrile rubber with 45% acrylonitrile content, 55 parts of N550 carbon black, 13 parts of conductive carbon black, 5.5 parts of liquid NBR, and 5.5 parts of liquid NBR. 20 parts of plasticizer, 2 parts of 2,2,4-trimethyl-1,2-dihydroquinoline polymer, 10 parts of magnesium chloride, 2.5 parts of modified phenolic resin, 2.5 parts of tetrabutylphosphonium benzotriazole salt , 4 parts of triallyl n-cyanurate, 3.5 parts of odorless DCP; wherein the plasticizer includes 10 parts of trioctyl trimellitate and 10 parts of dioctyl sebacate by weight;

[0068] The NBR / PVC alloy layer includes, in parts by weight, 110 parts of NBR / PVC alloy, 55 parts of N550 carbon black, 10 parts of dibutoxyethyl oxalate, 2,2,4-trimethyl-1,2-dihydrogen 2 parts of quinoline polymer, 2 parts of N-isopropyl-N'-phenyl-p-phenylenediamine, 6.5 parts of magnesium oxide, 3.5 parts of triallyl n...

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Abstract

The invention discloses a low-permeability and high-adhesion conductive automobile fuel pipe and a preparation method thereof, which belong to the technical field of fuel pipes. Rubber layer, aramid reinforced layer, and NBR / PVC alloy layer can achieve the effect of improving the bonding strength between the layers of the fuel pipe.

Description

technical field [0001] The invention relates to the field of fuel pipes, in particular to a low-penetration and high-adhesion conductive automobile fuel pipe and a preparation method thereof. Background technique [0002] With the development of the automobile industry, countries are paying more and more attention to environmental protection. In order to effectively control automobile exhaust emissions, countries are constantly improving the emission standards of automobile fuel systems, and the requirements for the penetration of automobile fuel pipes are also getting higher and higher. Automobile fuel pipes include fuel oil pipes and fuel pipes that supply fuel to the engine. They are relatively important safety parts, and their material performance requirements are also relatively high. For materials with better thermal properties, the outer layer should be made of rubber materials with good mechanical properties, heat resistance, ozone resistance, and good adhesion to th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B1/08B32B27/02B32B25/08B32B25/10B32B25/14B32B27/08B32B27/20B32B27/30B32B27/34B32B33/00B60K15/01B29B7/28B29B7/82B29C35/00B29C35/02B29C48/18B29C48/92C08L9/02B29L23/00C08K3/22
CPCB32B1/08B32B25/08B32B25/14B32B5/02B32B25/10B32B27/304B32B27/30B32B27/20B32B27/08B32B33/00C08L9/02B60K15/01B29B7/28B29B7/823B29C48/18B29C48/92B29C35/02B29C35/002C08L2201/08C08L2201/04C08L2203/18C08L2205/025C08L2205/03C08K2201/014C08K2003/222B29C2948/92704B29L2023/00B32B2262/0269B32B2270/00B32B2307/73B32B2307/7265B32B2307/714B32B2307/21B32B2597/00C08L61/14C08K13/02C08K3/04C08K5/12C08K5/11C08L27/06C08K5/18C08K3/22
Inventor 蒋广煜李旭蒋亨雷刘元顺袁银松
Owner ZHEJIANG JUNHE RUBBER TECH
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