Formula of inner rubber layer of low-temperature resistant fuel oil rubber tube
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of fuel hose and inner rubber layer, which is applied in the direction of hoses, pipes, pipes/pipe joints/fittings, etc., and can solve the problems of poor cold resistance and low temperature resistance
Inactive Publication Date: 2010-06-09
TIANJIN PENGYI GRP CO LTD
View PDF0 Cites 10 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
Due to its own composition and structural characteristics, this elastomer has many excellent properties such as high temperature resistance, fuel resistance, solvent resistance, hydraulic medium resistance, acid resistance, and alkali resistance, but its cold resistance is poor. With the increase of fluorine content, its The oil resistance is also enhanced accordingly, but the low temperature resistance will become worse and worse
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0015] Fluorine rubber (FKM) 90 parts,
[0016] Copolyether rubber 10 parts,
[0017] Semi-reinforcing carbon black (N774) 15 parts,
[0018] Magnesium oxide 3 parts,
[0019] 3 parts calcium hydroxide,
[0020] No. 3 vulcanizing agent 2 parts,
[0021] 0.3 parts of thiourea (accelerator NA-22),
[0022] 2 parts of bis(2-ethylethyl) adipate (DOA).
Embodiment 2
[0024] Fluorine rubber (FKM) 80 parts,
[0025] Copolyether rubber 20 parts,
[0026] Semi-reinforcing carbon black (N774) 22.5 parts,
[0027] 4.5 parts of magnesium oxide,
[0028] 4.5 parts of calcium hydroxide,
[0029] No. 3 vulcanizing agent 3.5 parts,
[0030] 0.65 parts of thiourea (accelerator NA-22),
[0031] 3.5 parts of bis(2-ethylethyl) adipate (DOA).
Embodiment 3
[0033] Fluorine rubber (FKM) 70 parts,
[0034] Copolyether rubber 30 parts,
[0035] 30 parts of semi-reinforcing carbon black (N774),
[0036] 6 parts of magnesium oxide,
[0037] Calcium hydroxide 6 parts,
[0038] No. 3 vulcanizing agent 5 parts,
[0039] 1 part of hexylenethiourea (accelerator NA-22),
[0040] 5 parts of bis(2-ethylethyl) adipate (DOA).
[0041] By adding copolyether chloride rubber and bis(2-ethyl ethyl) adipate (DOA) to the formula, its cold resistance performance has been greatly improved. With the increase of the amount of these two materials, the cold resistance performance shows an upward trend.
[0042] serial number
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Property
Measurement
Unit
freezing point
aaaaa
aaaaa
Login to view more
Abstract
The invention relates to a formula of an inner rubber layer of a low-temperature resistant fuel oil rubber tube. The inner rubber layer comprises the following components in part by mass: fluororubber 70-90, epichlorohydrin copolymer 10-30, semi-reinforcing purpose furnace black 15-30, magnesium oxide 3-6, calcium hydroxide 3-6, No.3 vulcanizer 2-5, 2-imidazolidinethione 0.3-1, adipic acid bis(2-ethylhexyl) ester 2-5. The main material of the inner rubber layer of the invention is the fluororubber and the epichlorohydrin copolymer. After adding the epichlorohydrin copolymer and the adipic acid bis(2- ethylhexyl) ester (DOA), the cold resistance is greatly improved, and high rubber elasticity is still maintained in a low-temperature environment.
Description
technical field [0001] The invention relates to the technical field of rubber hoses, in particular to the formula of an inner rubber layer of a low-temperature-resistant fuel rubber hose. Background technique [0002] The low temperature resistant fuel hose is mainly used in automobile engines to transport fuel. It is suitable for use in cold and harsh conditions. Bonding with the outer layer), skeleton layer (used to support the pipe body and enhance the pressure bearing capacity of the pipe), outer rubber layer (heat resistant, sunlight, ozone and other aging, mainly for protection). At present, the fuel hose generally uses fluororubber as the inner layer. The carbon atoms in the main chain or side chain of this material contain fluorine atoms and are a type of synthetic polymer elastomer that can be vulcanized. Due to its own composition and structural characteristics, this elastomer has many excellent properties such as high temperature resistance, fuel resistance, solv...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more