CN103115203B - A kind of fuel pipe and preparation method thereof - Google Patents
A kind of fuel pipe and preparation method thereof Download PDFInfo
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- CN103115203B CN103115203B CN201310044293.9A CN201310044293A CN103115203B CN 103115203 B CN103115203 B CN 103115203B CN 201310044293 A CN201310044293 A CN 201310044293A CN 103115203 B CN103115203 B CN 103115203B
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Abstract
The present invention relates to a kind of fuel pipe, described fuel pipe is followed successively by a NBR nitrile butadiene rubber layer, THV fluoroplastic material layer, the 2nd NBR nitrile butadiene rubber layer, aramid fibre layer, CSM chlorosulfonated polyethylene rubber layer from the inside to the outside.The present invention selects THV fluoroplastic material as the fuel oil barrier layer of fuel pipe, coordinate the layers such as nitrile butadiene rubber, aramid fibre, chlorosulfonated polyethylene rubber, described fuel pipe is made to play good iris action to fuel oil, the fuel oil penetrability of fuel pipe is significantly improved, reaches the object of ultralow fuel oil infiltration.
Description
Technical field
The present invention relates to a kind of fuel pipe and preparation method thereof, automobile fuel oil pipe particularly relating to a kind of hyposmosis and preparation method thereof.
Background technique
In recent years, along with the develop rapidly of economy, countries in the world recognize the nervous situation of the energy all gradually, and recognize the negative effect that expanding economy brings earth environment, and therefore the input of various countries in energy saving and environmental protection is also increasing.Safety, energy saving standard are the eternal theme of automotive technology development.Electronic fuel injection system motor is adopted to be one of important measures reducing discharge.After automobile adopts electronic fuel injection engine, fuel system pressure improves about 10 times than common motor, and the use of electronic fuel injection engine not only makes the temperature of motor itself raise, and ambient temperature is also raised; In addition with the addition of oxidized compound in used fuel component.In oil-fired system, vehicle fuel pipe is important safety member, comprise fuel oil transport pipe and to motor supply fuel fuel pipe.
In automotive industry, in order to effectively control discharge of automobile exhaust fumes, each state is all improving constantly the emission standard of automotive fuel oil system, also more and more higher to the permeation requirements of fuel hose.Meanwhile, because oil-fired system shows high temperature, acidifying and high-pressure trend, very harsh to the life requirement of fuel pipe, need thus to develop requirement that is high pressure resistant, low-penetration fuel hose.The hose lining of fuel pipe will select the material of fuel-resistant medium and good heat resistance; Outer layer glue then will select the material that the adhesion property of heat-resisting, resistance to ozone, resistance to environmetal impact and hose lining is good.
Although the sebific duct of the NBR nitrile butadiene rubber structure that current automotive fuel oil system uses has many advantages such as oil resistant, the performance such as ageing-resistant, its resistance to fuel oil penetrability is poor.Although existing plastic tube has the feature of hyposmosis, there is body too hard, the defect that rigidity is too strong.Therefore, the fuel hose of lower fuel oil infiltration is urgently developed to adapt to the demand of the development of automotive industry.
Summary of the invention
For the deficiencies in the prior art, an object of the present invention is to provide a kind of fuel pipe, and the fuel oil permeability of described fuel pipe is very low, and body itself is softer, can carry out stringing comparatively easily.
The present invention is achieved through the following technical solutions:
A kind of fuel pipe, is followed successively by a NBR nitrile butadiene rubber layer, THV fluoroplastic material layer, the 2nd NBR nitrile butadiene rubber layer, aramid fibre layer, CSM chlorosulfonated polyethylene rubber layer from the inside to the outside.(Fig. 1 is the sectional drawing of illustrated fuel pipe to the structure of described fuel pipe as depicted in figs. 1 and 2; Fig. 2 is the sectional view of illustrated fuel pipe).
Nitrile butadiene rubber (NBR) is obtained through emulsion polymerization by butadiene and acrylonitrile, and the main emulsion polymerization at low temperature that adopts is produced, and its oil resistance is fabulous, and wear resistance is higher, and heat resistance is better, and bonding force is strong; But that its shortcoming is lower temperature resistance is poor, ozone resistance is poor, and electrical property is inferior, and elasticity is slightly low; Mainly for the manufacture of oil resistant rubber goods.
THV fluoroplastic are polymer of tetrafluoroethylene, hexafluoropropene and vinylidene fluoride, are a kind of transparent, soft fluoroplastic.THV processing temperature is low, interval wide, the processing temperature of processing temperature is far below decomposition temperature.THV fluoroplastic are the most soft fluoroplastic of current commercialization, and when utilizing its characteristic and other plastics or elastomers multilayered structure goods, pliability is excellent.THV fluoroplastic are applied in sebific duct product good iris action is played to fuel oil, sebific duct fuel oil penetrability is significantly improved, reach the object of ultralow fuel oil infiltration.
The model of the single nonrestrictive THV fluoroplastic of typical case is THV500 or THV815 etc.
Aramid line adopts the twisting of Fanglun l414 fiber to form.Aramid fibre has high intensity, is greater than 28 grams/dawn, and be 5-6 times of high-quality steel, modulus is 2-3 times of steel or glass fibre, and toughness is 2 times of steel, and weight is only 1/5 of steel.The continuous serviceability temperature scope of aramid fiber is extremely wide, can normally run for a long time within the scope of-196 DEG C to 204 DEG C.Shrinkage at 150 DEG C is 0, does not decompose non-fusible under the high temperature of 560 DEG C.Aramid line has high temperature resistant, fire protection flame retarding, lightweight, and intensity is high, and modulus is high, dimensionally stable, and shrinkage is low, resistance toly punctures, abrasion performance, heat resistance, resistance to chemical attack, good mechanical property, the advantages such as dielectricity is good.
Chlorosulfonated polyethylene (CSM) is obtained through superchlorination and chlorosulfonation by Low Density Polyethylene or high density polyethylene (HDPE).For white or yellow elastic body, aromatic hydrocarbon can be dissolved in and chlorohydrocarbon is insoluble in fat and alcohol, can only swellingly can not dissolve in ketone and ether, there are excellent ozone resistance, resistance to weathering, chemical resistance etc., beautiful and charming physical and mechanical properties, ageing-resistant performance, heat-resisting and lower temperature resistance, oil resistance, flame resistance, wear resistance and resistance to electrical insulating property.
Nitrile butadiene rubber NBR of the present invention, fluoroplastic material THV, aramid fibre, chlorosulfonated polyethylene rubber CSM are all by commercially available.
Preferably, the thickness of a described NBR nitrile butadiene rubber layer is 1 ~ 2mm, such as 1.11mm, 1.16mm, 1.21mm, 1.25mm, 1.29mm, 1.36mm, 1.38mm, 1.44mm, 1.5mm, 1.57mm, 1.64mm, 1.69mm, 1.74mm, 1.8mm, 1.84mm, 1.92mm, 1.98mm etc.
Preferably, the thickness of described THV fluoroplastic material layer is 0.05 ~ 0.2mm, such as 0.06mm, 0.07mm, 0.09mm, 0.12mm, 0.14mm, 0.17mm, 0.18mm, 0.19mm etc.The thickness of THV fluoroplastic material layer is less than 0.05mm, and the effect intercepting fuel oil infiltration is bad; Be greater than 0.2mm, the hardness of fuel pipe is large, and fragility is high.
Preferably, the thickness of described 2nd NBR nitrile butadiene rubber layer is 0.5 ~ 1.5mm, such as 0.51mm, 0.57mm, 0.63mm, 0.68mm, 0.74mm, 0.8mm, 0.82mm, 0.88mm, 0.91mm, 0.94mm, 0.99mm etc.
Preferably, the thickness of described aramid fibre layer is 0.2 ~ 1mm, such as 0.21mm, 0.27mm, 0.33mm, 0.38mm, 0.44mm, 0.5mm, 0.62mm, 0.78mm, 0.81mm, 0.94mm, 0.99mm etc.
Preferably, the thickness of described CSM chlorosulfonated polyethylene rubber layer is 0.8 ~ 2mm such as 0.81mm, 0.87mm, 0.93mm, 0.98mm, 1.04mm, 1.1mm, 1.12mm, 1.2mm, 1.31mm, 1.45mm, 1.56mm, 1.64mm, 1.72mm, 1.85mm, 1.93mm, 1.98mm etc.
As optimal technical scheme, THV fuel pipe of the present invention is followed successively by the thick NBR nitrile butadiene rubber layer of 1 ~ 2mm, THV fluoroplastic material layer that 0.05 ~ 0.2mm is thick, the 2nd NBR nitrile butadiene rubber layer that 0.5 ~ 1.5mm is thick, aramid fibre layer that 0.2 ~ 1mm is thick, CSM chlorosulfonated polyethylene rubber layer that 0.8 ~ 2mm is thick from the inside to the outside.
As an alternatives, THV fuel pipe of the present invention is followed successively by the thick NBR nitrile butadiene rubber layer of 1.5mm, THV fluoroplastic material layer that 0.1mm is thick, the 2nd NBR nitrile butadiene rubber layer that 1mm is thick, aramid fibre layer that 0.6mm is thick, CSM chlorosulfonated polyethylene rubber layer that 1.4mm is thick from the inside to the outside.
As another alternatives, THV fuel pipe of the present invention is followed successively by the thick NBR nitrile butadiene rubber layer of 1.2mm, THV fluoroplastic material layer that 0.16mm is thick, the 2nd NBR nitrile butadiene rubber layer that 0.4mm is thick, aramid fibre layer that 0.4mm is thick, CSM chlorosulfonated polyethylene rubber layer that 1.4mm is thick from the inside to the outside.
Two of object of the present invention is the preparation method providing a kind of fuel pipe as described in one of the object of the invention, comprises the steps:
(1) NBR nitrile butadiene rubber is extruded into interior glue by cold feed extruder, obtains a NBR nitrile butadiene rubber layer;
(2) THV fluoroplastic material is extruded the outside being coated on a NBR nitrile butadiene rubber internal layer by special plastic extruder; Then by middle level rubber extruding machine, NBR nitrile butadiene rubber is extruded the outside being coated on THV fluoroplastics layer, form the 2nd NBR nitrile butadiene rubber layer; Again through knitting woven upper aramid fibre line, form aramid fibre layer; Last through outer rubber extruding machine CSM chlorosulfonated polyethylene rubber extruded to be coated on outside aramid fibre layer again form pipe, form CSM chlorosulfonated polyethylene rubber layer;
(3) be enclosed within by pipe on special core rod, then put into steam vulcanization (cure) tank, use steam pressurized 0.4-0.6MPa, be warming up to 150-160 DEG C and carry out vulcanizing treatment, the processing time is 30-40min.
The technological process of the preparation method of described fuel pipe as shown in Figure 3 (Fig. 3 is the process flow diagram preparing fuel pipe of the present invention).
Compared with prior art, the present invention has following beneficial effect:
The present invention selects THV fluoroplastic material as the fuel oil barrier layer of fuel pipe, coordinate the layers such as nitrile butadiene rubber, aramid fibre, chlorosulfonated polyethylene rubber, obtain the multi-layer compound structure of NBR nitrile butadiene rubber/THV fluoroplastic material/NBR nitrile butadiene rubber/aramid fibre/CSM chlorosulfonated polyethylene rubber, described fuel pipe is made to play good iris action to fuel oil, the fuel oil penetrability of fuel pipe is significantly improved, reach the object of ultralow fuel oil infiltration, meet European environment protection emission IV, V standard-required.
The manufacturing process of described fuel pipe mainly comprise rubber and THV fluoroplastic compound extruded, knit aramid fibre line and form several step layerings such as pipe embryo, vulcanizing treatment and extrude, make flexible good, the feature that fuel oil permeability is extremely low of the low-penetration fuel pipe of the band THV fluoroplastic prepared through described technique.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of illustrated fuel pipe;
Fig. 2 is the sectional view of illustrated fuel pipe;
Fig. 3 is the process flow diagram preparing fuel pipe of the present invention;
1-the one NBR nitrile butadiene rubber layer; 2-THV fluoroplastic material layer; 3-the 2nd NBR nitrile butadiene rubber layer; 4-aramid fibre layer; 5-CSM chlorosulfonated polyethylene rubber layer.
Embodiment
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art should understand, described embodiment helps to understand the present invention, should not be considered as concrete restriction of the present invention.
Embodiment 1
A kind of fuel pipe, band THV fluoroplastic material, is followed successively by: NBR nitrile butadiene rubber layer 1, THV fluoroplastic material layer 2, NBR nitrile butadiene rubber layer 3, aramid fibre layer 4, CSM chlorosulfonated polyethylene rubber layer 5 from inside to outside.
The preparation method of described fuel pipe, comprises the steps:
(1) NBR nitrile butadiene rubber is extruded into interior glue by cold feed extruder;
(2) THV fluoroplastic material is extruded by special plastic extruder be coated on outside NBR nitrile butadiene rubber inner glue layer, then by middle level rubber extruding machine, NBR nitrile butadiene rubber is extruded the outside being coated on THV fluoroplastics layer, again through knitting woven upper aramid fibre line, finally through outer rubber extruding machine CSM chlorosulfonated polyethylene rubber extruded to be coated on outside aramid fibre line again and form pipe;
(3) be enclosed within by pipe on special core rod, then put into steam vulcanization (cure) tank, use steam pressurized 0.4MPa, be warming up to 150 DEG C, 40 minutes time carried out vulcanizing treatment.
Embodiment 2
A kind of fuel pipe, band THV fluoroplastic material, described fuel pipe is followed successively by the thick NBR nitrile butadiene rubber layer 1 of 1.5mm, THV fluoroplastic material layer 2 that 0.1mm is thick, the 2nd NBR nitrile butadiene rubber layer 3 that 1mm is thick, aramid fibre layer 4 that 0.6mm is thick, CSM chlorosulfonated polyethylene rubber layer 5 that 1.4mm is thick from the inside to the outside.
The preparation method of described fuel pipe, comprises the steps:
(1) NBR nitrile butadiene rubber is extruded into interior glue by cold feed extruder;
(2) THV fluoroplastic material is extruded by special plastic extruder be coated on outside NBR nitrile butadiene rubber inner glue layer, then by middle level rubber extruding machine, NBR nitrile butadiene rubber is extruded the outside being coated on THV fluoroplastics layer, again through knitting woven upper aramid fibre line, finally through outer rubber extruding machine CSM chlorosulfonated polyethylene rubber extruded to be coated on outside aramid fibre line again and form pipe;
(3) be enclosed within by pipe on special core rod, then put into steam vulcanization (cure) tank, use steam pressurized 0.4MPa, be warming up to 150 DEG C, 40 minutes time carried out vulcanizing treatment.
Embodiment 3
A kind of fuel pipe, band THV fluoroplastic material, described fuel pipe is followed successively by the thick NBR nitrile butadiene rubber layer 1 of 1.2mm, THV fluoroplastic material layer 2 that 0.16mm is thick, the 2nd NBR nitrile butadiene rubber layer 3 that 0.4mm is thick, aramid fibre layer 4 that 0.4mm is thick, CSM chlorosulfonated polyethylene rubber layer 5 that 1.4mm is thick from the inside to the outside.
The preparation method of described fuel pipe, comprises the steps:
(1) NBR nitrile butadiene rubber is extruded into interior glue by cold feed extruder;
(2) THV fluoroplastic material is extruded by special plastic extruder be coated on outside NBR nitrile butadiene rubber inner glue layer, then by middle level rubber extruding machine, NBR nitrile butadiene rubber is extruded the outside being coated on THV fluoroplastics layer, again through knitting woven upper aramid fibre line, finally through outer rubber extruding machine CSM chlorosulfonated polyethylene rubber extruded to be coated on outside aramid fibre line again and form pipe;
(3) be enclosed within by pipe on special core rod, then put into steam vulcanization (cure) tank, use steam pressurized 0.6MPa, be warming up to 160 DEG C, 40 minutes time carried out vulcanizing treatment.
Embodiment 4
A kind of fuel pipe, band THV fluoroplastic material, described fuel pipe is followed successively by the thick NBR nitrile butadiene rubber layer 1 of 1mm, THV fluoroplastic material layer 2 that 0.2mm is thick, the 2nd NBR nitrile butadiene rubber layer 3 that 0.5mm is thick, aramid fibre layer 4 that 1mm is thick, CSM chlorosulfonated polyethylene rubber layer 5 that 0.8mm is thick from the inside to the outside.
Described fuel pipe is by the method preparation described in embodiment 1.
Embodiment 5
A kind of fuel pipe, band THV fluoroplastic material, described fuel pipe is followed successively by the thick NBR nitrile butadiene rubber layer 1 of 2mm, THV fluoroplastic material layer 2 that 0.05mm is thick, the 2nd NBR nitrile butadiene rubber layer 3 that 1.5mm is thick, aramid fibre layer 4 that 0.2mm is thick, CSM chlorosulfonated polyethylene rubber layer 5 that 2mm is thick from the inside to the outside.
Described fuel pipe is by the method preparation described in embodiment 1.
Testing property:
Embodiment 1 ~ 5 is carried out testing property, and test result is as shown in table 1:
The performance test results of table 1 embodiment 1 ~ 5
| Embodiment | Fuel oil permeability | Elasticity |
| 1 | 7.3g/m 2/24h | Close with pure NBR rubber |
| 2 | 9.7g/m 2/24h | Close with pure NBR rubber |
| 3 | 7.8g/m 2/24h | Close with pure NBR rubber |
| 4 | 4.4g/m 2/24h | Close with pure NBR rubber |
| 5 | 13.8g/m 2/24h | Close with pure NBR rubber |
As can be seen from the performance test results of embodiment 1 ~ 5, fuel pipe fuel oil permeability provided by the invention is little, good springiness.
Claimant states, the present invention illustrates detailed process equipment and process flow process of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned detailed process equipment and process flow process, namely do not mean that the present invention must rely on above-mentioned detailed process equipment and process flow process and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of auxiliary element, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.
Claims (2)
1. a fuel pipe, it is characterized in that, described fuel pipe is followed successively by the thick NBR nitrile butadiene rubber layer of 1 ~ 1.5mm, THV fluoroplastic material layer that 0.1 ~ 0.2mm is thick, the 2nd NBR nitrile butadiene rubber layer that 0.5 ~ 1mm is thick, aramid fibre layer that 0.2 ~ 1mm is thick, CSM chlorosulfonated polyethylene rubber layer that 0.8 ~ 2mm is thick from the inside to the outside;
Described fuel pipe is prepared by following steps:
(1) NBR nitrile butadiene rubber is extruded into interior glue by cold feed extruder, obtains a NBR nitrile butadiene rubber layer;
(2) THV fluoroplastic material is extruded the outside being coated on a NBR nitrile butadiene rubber internal layer by special plastic extruder; Then by middle level rubber extruding machine, NBR nitrile butadiene rubber is extruded the outside being coated on THV fluoroplastics layer, form the 2nd NBR nitrile butadiene rubber layer; Again through knitting woven upper aramid fibre line, form aramid fibre layer; Last through outer rubber extruding machine CSM chlorosulfonated polyethylene rubber extruded to be coated on outside aramid fibre layer again form pipe, form CSM chlorosulfonated polyethylene rubber layer;
(3) be enclosed within by pipe on special core rod, then put into steam vulcanization (cure) tank, use steam pressurized 0.4-0.6MPa, be warming up to 150-160 DEG C and carry out vulcanizing treatment, the processing time is 30-40min.
2. fuel pipe as claimed in claim 1, it is characterized in that, described fuel pipe is followed successively by the thick NBR nitrile butadiene rubber layer of 1.5mm, THV fluoroplastic material layer that 0.1mm is thick, the 2nd NBR nitrile butadiene rubber layer that 1mm is thick, aramid fibre layer that 0.6mm is thick, CSM chlorosulfonated polyethylene rubber layer that 1.4mm is thick from the inside to the outside.
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| CN201310044293.9A CN103115203B (en) | 2013-02-04 | 2013-02-04 | A kind of fuel pipe and preparation method thereof |
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| CN103115203B true CN103115203B (en) | 2016-03-02 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591397A (en) * | 2013-11-05 | 2014-02-19 | 安徽中鼎密封件股份有限公司 | Fuel oil rubber hose and manufacturing method thereof |
| CN107830270A (en) * | 2017-11-29 | 2018-03-23 | 天津鹏翎胶管股份有限公司 | A kind of new hyposmosis rubber and resin combination fuel pipe and preparation method thereof |
| CN108662308A (en) * | 2018-04-28 | 2018-10-16 | 浙江峻和橡胶科技有限公司 | A kind of compound oil gas rubber pipe and its manufacturing method |
| CN111204080B (en) * | 2019-12-27 | 2022-06-28 | 浙江峻和科技股份有限公司 | Low-permeability high-adhesion conductive automobile fuel pipe and preparation method thereof |
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| CN1760024A (en) * | 2005-11-17 | 2006-04-19 | 天津鹏翎胶管股份有限公司 | Silicone tube with large inside diameter in lock pin and preparation method |
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