CN110281498A - Three layers of oil resistant shock resistance flexible material of one kind and preparation method thereof - Google Patents
Three layers of oil resistant shock resistance flexible material of one kind and preparation method thereof Download PDFInfo
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- CN110281498A CN110281498A CN201910417474.9A CN201910417474A CN110281498A CN 110281498 A CN110281498 A CN 110281498A CN 201910417474 A CN201910417474 A CN 201910417474A CN 110281498 A CN110281498 A CN 110281498A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/22—Layered products comprising a layer of synthetic resin characterised by the use of special additives using plasticisers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/712—Weather resistant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a kind of three layers of oil resistant shock resistance flexible materials and preparation method thereof, which uses modified PVC as internal layer, and middle layer is spring layer, and outer layer HDPE obtains three layers of flexible pipeline road material by coextrusion processes.By the pipeline road material for adjusting outer layer and the thickness of internal layer pipeline and the available different applicabilities of the intensity of middle springs layer.Importantly, the pipeline road material can arbitrarily be bent, applicability is preferable；Modified PVC itself has preferable elasticity, has preferable shock resistance, the addition of spring layer increases the intensity of pipeline while not influencing pipeline elasticity, with the environment of high pressure and high flow rate suitable for pipeline road.The present invention meets the requirement of the pipeline road in automobile manufacturing field or engineering machinery field, is resistant to high pressure, has good oil resistant characteristic, has longer service life in oiliness environment.
Description
Technical field
The present invention relates to a kind of three layers of oil resistant shock resistance flexible materials and preparation method thereof.
Background technique
Pipeline road is very important component on engineering machinery or automobile, and effect is mainly used for and its conveys
Fuel oil can contact fuel oil inside and outside pipeline during conveying fuel oil.With the development of economy, fuel oil transportation art for
The demand of fuel pipe is gradually diversified, the index favorably more stringent and diversified requirement to fuel pipe material, example
Such as: intensity, toughness, using temperature, weatherability, operability index by strict requirements, constantly improve fuel pipe
The performance for conveying material is the urgent need of economy and society development.
Fuel pipe is mostly single layer pipeline structure at present, and material is generally based on HDPE, rubber.After HDPE oil resistant itself
Good stability of the dimension, but the heat resistance of HDPE itself is general；And General Purpose Rubber is added in rubber for a long time after fuel oil impregnates
Small molecule have part move in fuel oil, will lead to insecurity factor.In order to improve the oil resistant and heat resistance of oil pipe,
There is research to be modified to current fuel pipe to promote its oil-resisting and heat-resisting.109161124 A of patent CN discloses one
The good PVC hose recipe of kind of oil resistivity, has a preferable oil resistance, but simple PVC hose is since intensity is lower,
It is not particularly suited for the fuel pipe of high pressure.108758116 A of patent CN discloses a kind of Oil resistant rubber tube and its manufacturing process,
Including die layer, fabric reinforcement, mesoglea and the outer glue-line successively coated from inside to outside, equally have preferable oil resistant special
Property, but its ectonexine is rubber structure, cost is excessively high.There are this chemical stabilities for traditional fuel pipe conveying material
The defect of difference, poor mechanical property, weatherability are bad, oil resistivity is poor and service life is short etc., brings to actual use
Many inconvenience, the rupture of fuel pipe may threaten the safety of people lives and properties when serious.
Therefore, it is badly in need of changing the material prescription and design of original fuel pipe, improves performance and be not enough to adapt to market
Diversified demand develops a kind of shock proof flexible pipeline road material of oil resistant of cheap multilayer.
Summary of the invention
Based on technical problem present in pipeline road in background technique, the invention proposes a kind of three layers of oil resistant shock resistances
Flexible material and preparation method thereof, three layers of oil resistant shock resistance flexible material have good oil resistivity, weatherability, simultaneously
Have higher intensity, it is durable.
It is of the existing technology in order to solve the problems, such as, the present invention adopts the following technical scheme:
A kind of preparation method of three layers of oil resistant shock resistance flexible material, comprising the following steps:
Step 1: the preparation of oil resistant PVC: oil resistant PVC is prepared from the following components: 60-80 parts of Corvic, plasticizer
5-18 parts, 10-30 parts of oil resistant modifying agent, 1-3 parts of cross-linking catalyst, 0.2-0.5 parts of antioxidant, 0.5-1.0 parts of lubricant is prevented
Old agent 0.2-0.5 parts, the above component is kneaded blowing after 10-20min according to mill in kneading machine is added to after formula accurate weighing
Obtain oil resistant modifying character for PVC material；
Step 2: oil resistant modifying character for PVC material, HDPE are put into extruder respectively, three layers are obtained using coextrusion processes
Spring layer is added between modified PVC layer and HDPE layer during preparation in pipeline structure.
Preferably, in step 1, the Corvic is high polymerization degree haloflex or universal poly- second
One or both of alkene；Plasticizer is dioctyl phthalate (DOP), dibutyl phthalate (DBP), DINP are (adjacent
Phthalic acid dinonyl), one of tricresyl phosphate (2- chloropropyl) ester (TCPP) and DIDP (diisooctyl phthalate),
Two or three of mixture.
Preferably, in step 1, the oil resistant modifying agent is nitrile rubber, polyester-type TPU, haloflex and neoprene
The mixture of one of rubber, two kinds or three kinds；The cross-linking catalyst be two thio tetra methylthiurams (TMTD),
2- n-butylamine-based -4,6- dimercapto s-triazine (DB), dibenzoyl peroxide (DCP) and 5- Mercaptopropyltriethoxysilane
One or more of (MTES) mixture.
Preferably, in step 1, the antioxidant 2,2'- di-2-ethylhexylphosphine oxide (4- methyl-6-tert-butylphenol) resists
Oxygen agent AO-60 (1010), thio-2 acid two (18) ester, thio-2 acid one or both of dialkyl ester it is compound
Object；The age resister is 2-hydroxy-4-n-octoxybenzophenone, light stabilizer 622 and 2- (2'- hydroxyl -3', 5'- bis-
Tertiary amyl phenyl) benzotriazole one or two kinds of compounds；The lubricant is polyethylene wax, height coheres polyethylene glycol oxide
With the compound of one or both of ethylene bis stearamide.
Preferably, in step 2, the HDPE be high temperature HDPE, and according to different demands be added can it is different amounts of at
The crystallinity of core agent change HDPE；Processing HDPE extruder is single screw extrusion machine or double screw extruder.
Preferably, in step 2, the elastic force of the spring layer is 50-200N, and the material of the spring is carbon spring
One of steel wire, oil hardening tempering silicon-manganese spring steel silk, chrome alum spring steel wire, stainless steel wire for spring；The spring it is straight
Diameter is 0.05mm-1.0mm.
The three layers of oil resistant shock resistance flexible material prepared by above-mentioned preparation method, including oil resistant PVC internal layer, elastomeric spring
Middle layer and HDPE outer layer.
Preferably, the oil resistant PVC internal layer with a thickness of 0.1~0.5mm；The HDPE outer layer with a thickness of 0.3-
1.00mm。
The advantages and beneficial effects of the present invention are:
(1) present invention using flexible preferable and low permeability PVC as die layer, and passes through according to the use environment of oil-resistant pipe
The modified oil resistivity for improving internal layer layer of PVC, while PVC material has good weatherability, it can be simultaneously in low temperature and middle height
It is used in warm environment, and has preferable anti-aging property, to ensure that the internal layer of petroleum pipeline of the invention while have
Oil resistant, weather-proof, anti-aging and low permeability feature；
(2) spring that use of the invention has flexible and toughness and intensity can increase internal layer PVC's as middle layer
Intensity, can significantly increase the anti-compression property of internal layer pvc pipe, and not influence the flexible of pipeline road during use
Property, high-pressure pipeline road can be suitable for；
(3) outer layer of the invention can be adjusted outer using the adjustable HDPE of crystallinity as outer layer according to actual use situation
The intensity and flexibility of layer, while having good compatibility between HDPE and internal layer PVC, it can be good at middle springs layer
Cladding, makes pipeline road have higher intensity；
(4) oil resistant shock resistance flexibility pipeline road prepared by the present invention completes oil resistant PVC internal layer, centre according to the technique of coextrusion
The preparation of spring layer and HDPE outer layer, preparation process is simple, and production efficiency is higher, while preparation cost is lower；And according to reality
Pipeline road can be adjusted in situation, and the scope of application is wider.
Specific embodiment
With reference to embodiment, the specific embodiment of the present invention is further described.Following embodiment is only used for more
Add and clearly demonstrate technical solution of the present invention, and not intended to limit the protection scope of the present invention.
Embodiment 1:
The preparation of oil resistant PVC: oil resistant PVC is prepared from the following components:
60 parts of high degree of polymerization of polyvinyl chloride resin,
5 parts of plasticizer phthalic acid dioctyl ester
30 parts of oil resistant modifying agent nitrile rubber
Two 3 parts of thio tetra methylthiuram of cross-linking catalyst
0.5 part of antioxidant 2,2' methylene bis (4- methyl-6-tert-butylphenol)
1.0 parts of lubricant polyethylene wax
0.5 part of anti-aging agent 2-hydroxy-4-n-octoxybenzophenone
The above component is according to mill in kneading machine is added to after formula accurate weighing, it is modified to obtain oil resistant for blowing after mixing 10min
PVC material；
Oil resistant modified PVC, HDPE material are put into extruder, three layers of oil resistant shock resistance is prepared using the technique of coextrusion
Flexible petroleum pipeline, resistance to oil reservoir with a thickness of 0.1mm, the diameter of middle springs is 0.05mm, and elastic force 50N, material is carbon bullet
Spring steel wire, HDPE outer layer with a thickness of 1.0mm.
Embodiment 2
The preparation of oil resistant PVC: oil resistant PVC is prepared from the following components:
80 parts of polyvinyl-chloride of low-polymerization degree resin,
8 parts of plasticizer phthalic acid dibutyl ester
10 parts of TPU of oil resistant modifying agent polyester-type
1.1 parts of s-triazine of n-butylamine-based -4,6- dimercapto of cross-linking catalyst 2-
0.2 part of antioxidant antioxidant AO-60
Lubricant height coheres 0.5 part of polyethylene glycol oxide
622 0.2 parts of anti-aging agent light stabilizer
The above component is according to mill in kneading machine is added to after formula accurate weighing, it is modified to obtain oil resistant for blowing after mixing 20min
PVC material；
Oil resistant modified PVC, HDPE material are put into extruder, three layers of oil resistant shock resistance is prepared using the technique of coextrusion
Flexible petroleum pipeline, resistance to oil reservoir with a thickness of 0.5mm, the diameter of middle springs is 0.1mm, and elastic force 200N, material is oil hardening
Be tempered silicon-manganese spring steel silk, HDPE outer layer with a thickness of 0.3mm.
Embodiment 3
The preparation of oil resistant PVC: oil resistant PVC is prepared from the following components:
70 parts of high degree of polymerization of polyvinyl chloride resin,
7 parts of plasticizer phthalic acid dinonyl
20 parts of oil resistant modifying agent haloflex
2 parts of cross-linking catalyst dibenzoyl peroxide
0.3 part of ester of antioxidant thio-2 acid two (18)
Lubricant height coheres 0.5 part of polyethylene glycol oxide
622 0.2 parts of anti-aging agent light stabilizer
The above component is according to mill in kneading machine is added to after formula accurate weighing, it is modified to obtain oil resistant for blowing after mixing 15min
PVC material；
Oil resistant modified PVC, HDPE material are put into extruder, three layers of oil resistant shock resistance is prepared using the technique of coextrusion
Flexible petroleum pipeline, resistance to oil reservoir with a thickness of 0.3mm, the diameter of middle springs is 0.075mm, and elastic force 100N, material is carbon
Spring steel wire, HDPE outer layer with a thickness of 0.5mm.
Embodiment 4
The preparation of oil resistant PVC: oil resistant PVC is prepared from the following components:
65 parts of polyvinyl-chloride of low-polymerization degree resin,
18 parts of ester of plasticizer tricresyl phosphate (2- chloropropyl)
15 parts of oil resistant modifying agent neoprene
1 part of cross-linking catalyst 5- Mercaptopropyltriethoxysilane
Antioxidant 2,2' methylene bis (4- methyl-6-tert-butylphenol)/thio-2 acid two (18) ester (1:1) 0.2
Part
0.5 part of lubricant ethylene bis stearamide
0.3 part of benzotriazole of anti-aging agent 2- (bis- tertiary amyl phenyl of 2'- hydroxyl -3', 5'-)
The above component is according to mill in kneading machine is added to after formula accurate weighing, it is modified to obtain oil resistant for blowing after mixing 10min
PVC material；
Oil resistant modified PVC, HDPE material are put into extruder, three layers of oil resistant shock resistance is prepared using the technique of coextrusion
Flexible petroleum pipeline, resistance to oil reservoir with a thickness of 0.5mm, the diameter of middle springs is 0.05mm, and elastic force 50N, material is chrome alum bullet
Spring steel wire, HDPE outer layer with a thickness of 0.5mm.
Embodiment 5
The preparation of oil resistant PVC: oil resistant PVC is prepared from the following components:
60 parts of polyvinyl-chloride of low-polymerization degree resin,
18 parts of plasticizer phthalic acid diisodecyl ester
30 parts of oil resistant modifying agent neoprene
1 part of cross-linking catalyst 5- Mercaptopropyltriethoxysilane
Antioxidant 2,2' methylene bis (4- methyl-6-tert-butylphenol)/thio-2 acid two (18) ester (1:1) 0.2
Part
0.5 part of lubricant ethylene bis stearamide
0.3 part of benzotriazole of anti-aging agent 2- (bis- tertiary amyl phenyl of 2'- hydroxyl -3', 5'-)
The above component is according to mill in kneading machine is added to after formula accurate weighing, it is modified to obtain oil resistant for blowing after mixing 10min
PVC material；
Oil resistant modified PVC, HDPE material are put into extruder, three layers of oil resistant shock resistance is prepared using the technique of coextrusion
Flexible petroleum pipeline, resistance to oil reservoir with a thickness of 0.5mm, the diameter of middle springs is 0.05mm, and elastic force 50N, material is chrome alum bullet
Spring steel wire, HDPE outer layer with a thickness of 0.5mm.
Embodiment 6
The preparation of oil resistant PVC: oil resistant PVC is prepared from the following components:
80 parts of polyvinyl-chloride of low-polymerization degree resin,
8 parts of plasticizer phthalic acid dibutyl ester/tricresyl phosphate (2- chloropropyl) ester (1:1)
10 parts of nitrile rubber of oil resistant modifying agent polyester-type TPU/
Cross-linking catalyst 2- n-butylamine-based -4,6- dimercapto s-triazine/1.1 parts of dibenzoyl peroxide
0.2 part of antioxidant antioxidant AO-60
Lubricant height coheres 0.5 part of polyethylene glycol oxide
622 0.2 parts of anti-aging agent light stabilizer
The above component is according to mill in kneading machine is added to after formula accurate weighing, it is modified to obtain oil resistant for blowing after mixing 20min
PVC material；
Embodiment 7
The preparation of oil resistant PVC: oil resistant PVC is prepared from the following components:
60 parts of high degree of polymerization of polyvinyl chloride resin,
Plasticizer phthalic acid dioctyl ester/5 parts of diisooctyl phthalate
30 parts of oil resistant modifying agent nitrile rubber
The thio tetra methylthiuram of cross-linking catalyst two/3 parts of 5- Mercaptopropyltriethoxysilane
0.5 part of dialkyl ester of antioxidant 2,2' methylene bis (4- methyl-6-tert-butylphenol)/thio-2 acid
Lubricant polyethylene wax/1.0 parts of ethylene bis stearamide
0.5 part of anti-aging agent 2-hydroxy-4-n-octoxybenzophenone
The above component is according to mill in kneading machine is added to after formula accurate weighing, it is modified to obtain oil resistant for blowing after mixing 10min
PVC material；
Oil resistant modified PVC, HDPE material are put into extruder, three layers of oil resistant shock resistance is prepared using the technique of coextrusion
Flexible petroleum pipeline, resistance to oil reservoir with a thickness of 0.1mm, the diameter of middle springs is 0.05mm, and elastic force 50N, material is carbon bullet
Spring steel wire, HDPE outer layer with a thickness of 1.0mm.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of preparation method of three layers of oil resistant shock resistance flexible material, which comprises the following steps:
Step 1: the preparation of oil resistant PVC: oil resistant PVC is prepared from the following components: 60-80 parts of Corvic, plasticizer
5-18 parts, 10-30 parts of oil resistant modifying agent, 1-3 parts of cross-linking catalyst, 0.2-0.5 parts of antioxidant, 0.5-1.0 parts of lubricant is prevented
Old agent 0.2-0.5 parts, the above component is kneaded blowing after 10-20min according to mill in kneading machine is added to after formula accurate weighing
Obtain oil resistant modifying character for PVC material；
Step 2: oil resistant modifying character for PVC material, HDPE are put into extruder respectively, three layers are obtained using coextrusion processes
Spring layer is added between modified PVC layer and HDPE layer during preparation in pipeline structure.
2. a kind of preparation method of three layers of oil resistant shock resistance flexible material according to claim 1, which is characterized in that step
In one, the Corvic is one or both of high polymerization degree haloflex or universal polyethylene；Increase
Modeling agent is dioctyl phthalate (DOP), dibutyl phthalate (DBP), DINP (diisononyl phthalate), phosphorus
Sour one of three (2- chloropropyl) esters (TCPP) and DIDP (diisooctyl phthalate), two or three of mixture.
3. a kind of preparation method of three layers of oil resistant shock resistance flexible material according to claim 1, which is characterized in that step
In one, the oil resistant modifying agent be one of nitrile rubber, polyester-type TPU, haloflex and neoprene, two kinds or
The mixture that three kinds of person；The cross-linking catalyst is two thio tetra methylthiurams (TMTD), two mercapto of 2- n-butylamine-based -4,6-
One or more of base s-triazine (DB), dibenzoyl peroxide (DCP) and 5- Mercaptopropyltriethoxysilane (MTES)
Mixture.
4. a kind of preparation method of three layers of oil resistant shock resistance flexible material according to claim 1, which is characterized in that step
In one, the antioxidant 2 is 2'- di-2-ethylhexylphosphine oxide (4- methyl-6-tert-butylphenol), antioxidant AO-60 (1010), thio
Dipropionic acid two (18) ester, thio-2 acid one or both of dialkyl ester compound；The age resister is
2-hydroxy-4-n-octoxybenzophenone, light stabilizer 622 and 2- (bis- tertiary amyl phenyl of 2'- hydroxyl -3', 5'-) benzotriazole
One or two kinds of compounds；The lubricant is polyethylene wax, height coheres in polyethylene glycol oxide and ethylene bis stearamide
One or two kinds of compounds.
5. a kind of preparation method of three layers of oil resistant shock resistance flexible material according to claim 1, which is characterized in that step
In two, the HDPE is high temperature HDPE, and the crystallinity that different amounts of nucleating agent changes HDPE is added according to different demands；Add
Work HDPE extruder is single screw extrusion machine or double screw extruder.
6. a kind of preparation method of three layers of oil resistant shock resistance flexible material according to claim 1, which is characterized in that step
In two, the elastic force of the spring layer is 50-200N, and the material of the spring is carbon spring steel wires, oil hardening tempering silicomanganese
One of spring steel wire, chrome alum spring steel wire, stainless steel wire for spring；The diameter of the spring is 0.05mm-1.0mm.
7. three layers of oil resistant shock resistance flexible material of the preparation of preparation method described according to claim 1 ~ 6, which is characterized in that packet
Include oil resistant PVC internal layer, elastomeric spring middle layer and HDPE outer layer.
8. three layers of oil resistant shock resistance flexible material according to claim 7, which is characterized in that the oil resistant PVC internal layer
With a thickness of 0.1~0.5mm；The HDPE outer layer with a thickness of 0.3-1.00mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910417474.9A CN110281498A (en) | 2019-05-20 | 2019-05-20 | Three layers of oil resistant shock resistance flexible material of one kind and preparation method thereof |
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Application publication date: 20190927 |