CN107760120B - A kind of polytetrafluorethylecoatings coatings composition for seal wire surface - Google Patents
A kind of polytetrafluorethylecoatings coatings composition for seal wire surface Download PDFInfo
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- CN107760120B CN107760120B CN201711089373.0A CN201711089373A CN107760120B CN 107760120 B CN107760120 B CN 107760120B CN 201711089373 A CN201711089373 A CN 201711089373A CN 107760120 B CN107760120 B CN 107760120B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D127/00—Coating compositions based on 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; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on 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; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on 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; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/02—Applications for biomedical use
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- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The present invention provides a kind of polytetrafluorethylecoatings coatings composition for seal wire surface, it calculates by weight, the polytetrafluorethylecoatings coatings composition for seal wire surface includes 30 55 parts of PTFE emulsion, 5 15 parts of fluororesin, 0.1 1.0 parts of antifoaming agent, 0.1 1.0 parts of wetting agent, 0.1 1.0 parts of levelling agent, 40 50 parts of water；Wherein, the wetting agent includes one or more in fluorine carbon type Gemini wetting agents, siloxanes fundamental mode Gemini wetting agents, fluorine-containing non-ionic wetting agent Tech 243, Capstone FS 3100, Capstone FS 30, Capstone FS 31, Capstone FS 50, Capstone FS 51, Capstone FS 60, Capstone FS 61.
Description
Technical field
The present invention relates to a kind of technical field of coatings, in particular it relates to a kind of polytetrafluoro for seal wire surface
Vinyl coating composition.
Background technology
Ideal biomedical metallic material should have good lubricity and biocompatibility.Due in intervention human body
In the process, biomedical metallic material inevitably can generate friction with the tissue of human body or blood vessel, when this frictional force compared with
The epithelial tissues such as vascular wall will be caused to damage when big, the pain of caused patient or sense of burning, while the tissue being damaged
Also it is easy to grow bacterium, and causes inflammation.
Biomedical metallic material will also result in the absorption of albumen during intervening human body, so as to cause blood platelet,
The adherency such as bacterium, and the possibility for causing blood coagulation, bacterium infection etc. cause its biocompatibility to be unsatisfactory for intervention and require.Therefore
Lubricity and biocompatibility modification to bio-medical metal surface are particularly important, and coating is due to good biology
Compatibility and surface smoothness become the important means that the surface of biomedical metallic material is modified.
In blood vessel intervention diagnosis and therapeutic process, interventional guide wire reaches target portion as all kinds of conduits of guiding and intervention apparatus
The important medical instrument of position.Since seal wire needs to push repeatedly in the blood vessels, passes through complex lesions and curved blood vessel, therefore want derivation
Silk will not only have good pushability, turn round control property and compliance, while should also keep splendid lubricity, water-retaining property and seal wire table
The fastness of finishing coat.
The medical apparatus such as conduit are inserted directly into body cavity, and carry out internal inspection or treatment in this state, to
Instead of previous cutting operation.When using conduit in this way, so that conducting wire is passed through will be directed in the conduit of internal target site,
Under the guiding of conducting wire, target site is introduced a catheter into.When being inserted into conduit, it is first inserted into the conducting wire as guide, then along leading
Line inserts the catheter into vivo, the narrow gaps of conduit and conducting wire, and when insertion human body, blood flows into and generates frictional resistance,
So that conducting wire is tightly attached to the inner peripheral surface of conduit, trouble is easy tod produce in this way.Therefore, in order to which the friction for reducing conducting wire and conduit hinders
Power, the fluororesin-coated coating on conducting wire.
PTFE coatings have preferable biocompatibility, securely and reliably, also have superpower corrosion resistance, can answer extensively
For biomedical materials field, provide surface lubrication performance, and prevent biotic environment to the degradation of the burn into of material, abrasion and
Property degradation even destroys.But PTFE coating adhesion is poor, and low painting adhesive layer is generally wanted to improve coating and matrix
Binding force, such PTFE coating systems are complicated, coating process is cumbersome, increase coating layer thickness, influence the application field model of seal wire
It encloses.
On October 21st, 2013, U.S. FDA publication are led about Medtronic companies interventional guide wire and ATTAIN HYBRID
The recall notice of silk, recalls reason：The possible delamination of PTFE (polytetrafluoroethylene (PTFE)) coating is simultaneously detached from seal wire.Medtronic can
Ventricular lead is placed into coronary vasodilator by manipulation seal wire for assisting.It may lead to serious adverse health using the recall
Consequence.
In view of the above-mentioned problems, the present invention provides a kind of polytetrafluorethylecoatings coatings composition for seal wire surface, have
Ingredient is simple, performance is stable, strong adhesive force, coating efficiency are high.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of polytetrafluorethylecoatings coatings composition for seal wire surface, presses
Listed as parts by weight, the polytetrafluorethylecoatings coatings composition for seal wire surface include 30-55 parts of PTFE emulsion, fluororesin 5-
15 parts, 0.1-1.0 parts of antifoaming agent, 0.1-1.0 parts of wetting agent, 0.1-1.0 parts of levelling agent, 40-50 parts of water；Wherein, the wetting
Agent include fluorine carbon type Gemini wetting agents, siloxanes fundamental mode Gemini wetting agents, fluorine-containing non-ionic wetting agent Tech-243,
Capstone FS-3100、Capstone FS-30、Capstone FS-31、Capstone FS-50、Capstone FS-51、
It is one or more in Capstone FS-60, Capstone FS-61.
In one embodiment, it calculates by weight, the polytetrafluorethylecoatings coatings composition for seal wire surface
Including 35-50 parts of PTFE emulsion, 5-12 parts of fluororesin, 0.1-0.8 parts of antifoaming agent, 0.1-1.0 parts of wetting agent, levelling agent 0.1-
0.8 part, 40-50 parts of water.
In one embodiment, the wetting agent is fluorine carbon type Gemini wetting agents, the Gemini wettings of siloxanes fundamental mode
Agent, Capstone FS-30.
In one embodiment, the raw material for preparing of the Gemini wetting agents of fluorine carbon type described in the wetting agent includes 2-
(perfluoro butyl) ethyl acrylate, butanediol diglycidyl ether, polyethylene glycol.
In one embodiment, the raw material for preparing of siloxanes fundamental mode Gemini wetting agents described in the wetting agent includes
1,1,3,3- tetramethyl -1,3- divinyl disiloxane, 1,6- hexanediol diglycidyl ethers, polyethylene glycol.
In one embodiment, fluorine carbon type Gemini wetting agents described in the wetting agent and the siloxanes fundamental mode
Gemini wetting agents, the Capstone FS-30 weight ratio be 1：(0.1-1)：(0.5-2).
In one embodiment, the fluororesin includes polyflon, polychlorotrifluoroethylene resin, gathers inclined fluorine
It is one or more in vinyl, polyfluoroethylene resin.
In one embodiment, the antifoaming agent is organic silicon antifoaming agent.
In one embodiment, the levelling agent is fluorine carbon levelling agent.
Another aspect of the present invention provides a kind of preparation method of the polytetrafluorethylecoatings coatings composition for seal wire surface, packet
Include following steps：
Addition PTFE emulsion, fluororesin, wetting agent, levelling agent, water by weight into blender, stirring at low speed 1h, so
After antifoaming agent is added, continue stirring for 24 hours, obtain the polytetrafluorethylecoatings coatings composition for being used for seal wire surface.
The above-mentioned of the application and other features, aspect and advantage is more readily understood with reference to following detailed description.
Specific implementation mode
The detailed description for preferred implementation method of the invention below of participating in the election of and including embodiment this hair can be more easily understood
Bright content.Unless otherwise defined, all technologies used herein and scientific terminology have common with fields of the present invention
The normally understood identical meaning of technical staff.When there is a conflict, the definition in this specification shall prevail.
As used herein term " by ... prepare " it is synonymous with "comprising".Term "comprising" used herein, " comprising ",
" having ", " containing " or its any other deformation, it is intended that cover non-exclusionism includes.For example, the combination comprising listed elements
Object, step, method, product or device are not necessarily limited to those elements, but may include not expressly listed other elements or
Such composition, step, method, product or the intrinsic element of device.
Conjunction " Consists of " excludes any element that do not point out, step or component.If in claim, this
Phrase will make claim be closed, so that it is not included the material in addition to the material of those descriptions, but relative normal
Except rule impurity.When being rather than immediately following after theme in the clause that phrase " Consists of " appears in claim main body,
It is only limited to the element described in the clause；Other elements are not excluded except the claim as a whole.
Equivalent, concentration or other values or parameter are excellent with range, preferred scope or a series of upper limit preferred values and lower limit
When the Range Representation that choosing value limits, this, which should be understood as, specifically discloses by any range limit or preferred value and any range
Any pairing of lower limit or preferred value is formed by all ranges, regardless of whether the range separately discloses.For example, when open
When range " 1 to 5 ", described range should be interpreted as including range " 1 to 4 ", " 1 to 3 ", " 1 to 2 ", " 1 to 2 and 4 to
5 ", " 1 to 3 and 5 " etc..When numberical range is described herein, unless otherwise stated, otherwise range intention includes its end
Value and all integers and score in the range.
Singulative includes that plural number discusses object, unless the context clearly dictates otherwise." optional " or it is " arbitrary
It is a kind of " refer to that the item described thereafter or event may or may not occur, and the description include situation that event occurs and
The situation that event does not occur.
Approximate term in specification and claims is used for modifying quantity, and it is specific to indicate that the present invention is not limited to this
Quantity further includes the modified part of the acceptable change without lead to related basic function close to the quantity.Phase
It answers, modifies a numerical value with " about ", " about " etc., mean that the present invention is not limited to the exact numericals.In some examples, approximate
Term likely corresponds to the precision of the instrument of measured value.In present specification and claims, range limits can be with
Combination and/or exchange, these ranges include all subranges contained therebetween if not stated otherwise.
In addition, indefinite article "an" before element of the present invention or component and "one" quantitative requirement to element or component
(i.e. occurrence number) unrestriction.Therefore "one" or "an" should be read as including one or at least one, and odd number
The element or component of form also include plural form, unless the apparent purport of the quantity refers to singulative.
" polymer " means the polymerizable compound prepared by the monomer by the identical or different type of polymerization.Generic term
" polymer " includes term " homopolymer ", " copolymer ", " terpolymer " and " copolymer ".
" copolymer " means the polymer prepared by polymerizeing at least two different monomers.Generic term " copolymer " includes
(it is general with term " terpolymer " for term " copolymer " (its generally to refer to the polymer prepared by two kinds of different monomers)
To refer to the polymer prepared by three kinds of different monomers).It also includes the polymer manufactured by polymerizeing more kinds of monomers.
" blend " means the polymer that two or more polymer is formed by mixing jointly by physics or chemical method.
The present invention provides a kind of polytetrafluorethylecoatings coatings composition for seal wire surface, calculates by weight, the use
Polytetrafluorethylecoatings coatings composition in seal wire surface includes 30-55 parts of PTFE emulsion, 5-15 parts of fluororesin, antifoaming agent 0.1-
1.0 parts, 0.1-1.0 parts of wetting agent, 0.1-1.0 parts of levelling agent, 40-50 parts of water；Wherein, the wetting agent includes fluorine carbon type
Gemini wetting agents, siloxanes fundamental mode Gemini wetting agents, fluorine-containing non-ionic wetting agent Tech-243, Capstone FS-3100
(being purchased from Jin Teng Yilong Industry Co., Ltd. of Shenzhen), Capstone FS-30, Capstone FS-31, Capstone FS-50,
It is one or more in Capstone FS-51, Capstone FS-60, CapstoneFS-61.
In one embodiment, it calculates by weight, the polytetrafluorethylecoatings coatings composition for seal wire surface
Including 35-50 parts of PTFE emulsion, 5-12 parts of fluororesin, 0.1-0.8 parts of antifoaming agent, 0.1-1.0 parts of wetting agent, levelling agent 0.1-
0.8 part, 40-50 parts of water；Preferably, the polytetrafluorethylecoatings coatings composition for seal wire surface includes PTFE emulsion 45
Part, 8 parts of fluororesin, 0.6 part of antifoaming agent, 0.8 part of wetting agent, 0.5 part of levelling agent, 42 parts of water.
The wetting agent is distributed in the medium with making the uniform particle in coating, is made and is not reassembled, flocculates, sinking
The dispersion in shallow lake.
It is compared with common wetting agent, the Gemini wetting agents that the group of connection is shorter are readily formed molecule aggregate, than
The aggregation curvature of the molecule of corresponding common wetting agent is lower, the aggregate shapes of Gemini wetting agents in aqueous solution with
The increase of linking group length becomes globular micelle from winding shape micella.
Gemini wetting agents have at interfacial property, micellar conformation, aggregation number and the several aspects of phase behavior different from common profit
The property of humectant, meanwhile, this kind of wetting agent is difficult to accumulate in lattice, is good water-soluble accelerating agent.In addition, Gemini moistens
Humectant also has the advantages that good mechanical property, synergistic effect, wettability, dispersion performance, solubility property.
In one embodiment, the wetting agent is fluorine carbon type Gemini wetting agents, the Gemini wettings of siloxanes fundamental mode
Agent, Capstone FS-30.
In one embodiment, the raw material for preparing of the Gemini wetting agents of fluorine carbon type described in the wetting agent includes 2-
(perfluoro butyl) ethyl acrylate (CAS:117374-41-1), butanediol diglycidyl ether, polyethylene glycol 400.
In one embodiment, the raw material for preparing of siloxanes fundamental mode Gemini wetting agents described in the wetting agent includes
1,1,3,3- tetramethyl -1,3- divinyl disiloxanes (CAS:2627-95-4), 1,6- hexanediol diglycidyl ethers, poly-
Ethylene glycol 600.
In one embodiment, fluorine carbon type Gemini wetting agents described in the wetting agent and the siloxanes fundamental mode
Gemini wetting agents, the Capstone FS-30 weight ratio be 1：(0.1-1)：(0.5-2)；Preferably, the wetting agent
Described in fluorine carbon type Gemini wetting agents and the siloxanes fundamental mode Gemini wetting agents, the Capstone FS-30 weight
Than being 1：0.7：1.3.
The preparation method of the fluorine carbon type Gemini wetting agents includes the following steps：
(1) 2- (perfluoro butyl) ethyl acrylate is added into reactor, is warming up to 100 DEG C, polymerization inhibitor pair is slowly added dropwise
After being added dropwise, butanediol diglycidyl ether is then slowly added dropwise in benzenediol, and after being added dropwise, the catalyst tetrabutyl is added
Ammonium bromide, insulation reaction 12h are concentrated under reduced pressure after reaction, obtain the intermediate of fluorine carbon type Gemini wetting agents；The 2- is (complete
Fluorine butyl) ethyl acrylate and the hydroquinone, the butanediol diglycidyl ether, the tetrabutylammonium bromide mole
Than being 1：5：0.9：0.11；
(2) intermediate, the concentrated sulfuric acid, polyethylene glycol 400 of fluorine carbon type Gemini wetting agents are added into reactor, is warming up to
140 DEG C, insulation reaction 7h is cooled to room temperature, obtains fluorine carbon type Gemini wetting agents, in the fluorine carbon type Gemini wetting agents
The weight ratio of mesosome and the concentrated sulfuric acid is 1：0.1；The intermediate of the fluorine carbon type Gemini wetting agents and the polyethylene glycol
400 molar ratio is 1：2.1.
The preparation method of the siloxanes fundamental mode Gemini wetting agents includes the following steps：
(1) 1,1,3,3- tetramethyl -1,3- divinyl disiloxane, hydroquinone of polymerization retarder are added into reactor,
100 DEG C are warming up to, 1,6- hexanediol diglycidyl ethers are slowly added dropwise, after being added dropwise, catalyst tetrabutylammonium bromide is added,
Insulation reaction 14h is concentrated under reduced pressure after reaction, obtains siloxanes fundamental mode Gemini wetting agent intermediates, and described 1,1,3,3- tetra-
Methyl-1,3- divinyl disiloxanes and the hydroquinone, 1, the 6- hexanediol diglycidyl ethers, the tetrabutyl
The molar ratio of ammonium bromide is 1：6：1：0.11；
(2) siloxanes fundamental mode Gemini wetting agents intermediate, the concentrated sulfuric acid, Macrogol 600, heating are added into reactor
To 140 DEG C, insulation reaction 6h is cooled to room temperature, obtains siloxanes fundamental mode Gemini wetting agents, the siloxanes fundamental mode Gemini
The weight ratio of wetting agent intermediate and the concentrated sulfuric acid is 1：0.12；The siloxanes fundamental mode Gemini wetting agents intermediate and institute
The molar ratio for stating Macrogol 600 is 1：2.1.
Three alkoxies being connected with Si in siloxanes fundamental mode Gemini wetting agents all occur hydrolysis and obtain silicone hydroxyl Si-
OH so reacts to each other between latter two molecule and sloughs H2O, condensation form oligomerization siloxanes；Si-OH in oligomeric compound with
The hydroxyl reaction of mineral surfaces forms hydrogen bond；It is then heating and curing, is allowed to directly occur with the hydroxyl of matrix surface de-
Water reacts to form covalent bond, improves the persistence and wetability of matrix and dope layer.
In one embodiment, the fluororesin includes polyflon, polychlorotrifluoroethylene resin, gathers inclined fluorine
It is one or more in vinyl, polyfluoroethylene resin；Preferably, the fluororesin is polyvinylidene fluoride resin and poly- fluorine second
Olefine resin.
In one embodiment, the weight of polyvinylidene fluoride resin and the polyfluoroethylene resin described in the fluororesin
Amount is than being (0.2-1)：1；Preferably, the weight of polyvinylidene fluoride resin and the polyfluoroethylene resin described in the fluororesin
Than being 0.3：1.
In one embodiment, the grain size of the fluororesin is 0.1 μm -10 μm.
Fluororesin dispersion liquid conductive line surfaces coating method, brush, spraying etc. any one method can, but in order to
Coating is uniform, it is preferred to use the method for dip-coating.
The firing temperature of fluororesin is 300~450 DEG C, so after being burnt into the conducting wire coated with fluororesin, from fluorine
The molten condition chilling of resin can prevent metallicity annealing conducting wire and lose rigidity, while can obtain because of fluororesin layer urgency
Cold and formation hard coat film.The chilling refers to being carried out from the molten condition of fluororesin with 50~100 DEG C/sec or so of speed
Cooling.Preferred condition can be according to the progress such as the diameter of metallicity conducting wire and thickness, the firing temperature of material or fluororesin
It determines.
In one embodiment, the antifoaming agent is organic silicon antifoaming agent.
The antifoaming agent is used for reducing the surface tension of water paint, inhibits the generation of foam.
The organic silicon antifoaming agent includes one kind in BYK-094, BYK-022, Tego-901W, W-0505, W-0506
Or it is a variety of.
In one embodiment, the levelling agent is fluorine carbon levelling agent.
The levelling agent makes coated surface area be contracted to minimum, to make coating become flat from irregular groove, wrinkle
Sliding surface.
The fluorine carbon levelling agent is EFKA 3777N (being purchased from hundred mattress Chemical Co., Ltd. of Shanghai).
Another aspect of the present invention provides a kind of preparation method of the polytetrafluorethylecoatings coatings composition for seal wire surface, packet
Include following steps：
Addition PTFE emulsion, fluororesin, wetting agent, levelling agent, water by weight into blender, stirring at low speed 1h, so
After antifoaming agent is added, continue stirring for 24 hours, obtain the polytetrafluorethylecoatings coatings composition for being used for seal wire surface.
The coating process of the polytetrafluorethylecoatings coatings composition for seal wire surface：
(1) required coating part on seal wire will be coated on for the polytetrafluorethylecoatings coatings composition on seal wire surface；
(2) after being ready to use in the moisture evaporation in the polytetrafluorethylecoatings coatings composition on seal wire surface at room temperature, in 300-
Solidification sintering is to get the formation PTFE self-lubricating hydrophobic coatings on seal wire surface at a temperature of 450 DEG C.
Fluororesin coating film layer and the fluororesin part of convex outstanding are integrally formed through firing in the present invention, convex fluorine tree
Fat granule can form smooth protrusion, help to reduce frictional resistance；The object of smooth protrusion and contact becomes point contact,
Lead to the decline of frictional resistance.
Gemini wetting agents are a kind of novel wetting agents, it be by two identical parents' components in polar group or
Away from the wetting agent that they are linked together by linking group on the close alkyl chain of polar group and is formed；Gemini wetting agents
With lower critical micelle concentration, higher surface-active, better water solubility, solubilising, foaminess, wetability and collaboration
Effect.
Pass through fluorine carbon type Gemini wetting agents, siloxanes fundamental mode Gemini wetting agents, Capstone FS-30 in the present invention
It acts synergistically, has good mechanical property, synergistic effect, wettability, dispersion performance, solubility property, promote for leading
Attachment of the polytetrafluorethylecoatings coatings composition in silk table face on seal wire surface improves adhewsive action power.
Polytetrafluoroethylene (PTFE) (PTFE) lubricant coating obtained in the present invention can reduce intubation, plugging wire strength；Increase patient
Comfort level reduces pain；Ability of the enhancing into curved blood vessel；Very accurate push power and moment of torsion control, reduction group are provided
Knit stimulation and damage.
The present invention is specifically described below by embodiment.It is necessarily pointed out that following embodiment is only used
In the invention will be further described, it should not be understood as limiting the scope of the invention, professional and technical personnel in the field
Some the nonessential modifications and adaptations made according to the content of aforementioned present invention, still fall within protection scope of the present invention.
In addition, if without other explanations, it is raw materials used to be all commercially available, it is purchased from traditional Chinese medicines chemical reagent.
Embodiment 1
The polytetrafluorethylecoatings coatings composition for seal wire surface calculates by weight, described to be used for seal wire surface
Polytetrafluorethylecoatings coatings composition include 45 parts of PTFE emulsion, 8 parts of fluororesin, 0.6 part of antifoaming agent, 0.8 part of wetting agent, levelling
0.5 part of agent, 42 parts of water；
Wherein, the wetting agent is fluorine carbon type Gemini wetting agents, siloxanes fundamental mode Gemini wetting agents, Capstone
FS-30, it is fluorine carbon type Gemini wetting agents described in the wetting agent and the siloxanes fundamental mode Gemini wetting agents, described
The weight ratio of Capstone FS-30 is 1：0.7：1.3, the raw material for preparing of the fluorine carbon type Gemini wetting agents includes 2- (perfluors
Butyl) ethyl acrylate, butanediol diglycidyl ether, polyethylene glycol 400, siloxanes fundamental mode described in the wetting agent
The raw material for preparing of Gemini wetting agents includes 1,1,3,3- tetramethyl -1,3- divinyl disiloxane, the contracting of 1,6- hexylene glycols two
Water glycerin ether, Macrogol 600；The fluororesin is polyvinylidene fluoride resin and polyfluoroethylene resin, institute in the fluororesin
The weight ratio for stating polyvinylidene fluoride resin and the polyfluoroethylene resin is 0.3：1, the grain size of the fluororesin is 0.1 μm of -10 μ
m；The antifoaming agent is BYK-094；The levelling agent is EFKA 3777N；
The preparation method of the polytetrafluorethylecoatings coatings composition for seal wire surface, includes the following steps：
Addition PTFE emulsion, fluororesin, wetting agent, levelling agent, water by weight into blender, stirring at low speed 1h, so
After antifoaming agent is added, continue stirring for 24 hours, obtain the polytetrafluorethylecoatings coatings composition for being used for seal wire surface.
The preparation method of the fluorine carbon type Gemini wetting agents, includes the following steps：
(1) 2- (perfluoro butyl) ethyl acrylate is added into reactor, is warming up to 100 DEG C, polymerization inhibitor pair is slowly added dropwise
After being added dropwise, butanediol diglycidyl ether is then slowly added dropwise in benzenediol, and after being added dropwise, the catalyst tetrabutyl is added
Ammonium bromide, insulation reaction 12h are concentrated under reduced pressure after reaction, obtain the intermediate of fluorine carbon type Gemini wetting agents；The 2- is (complete
Fluorine butyl) ethyl acrylate and the hydroquinone, the butanediol diglycidyl ether, the tetrabutylammonium bromide mole
Than being 1：5：0.9：0.11；
(2) intermediate, the concentrated sulfuric acid, polyethylene glycol 400 of fluorine carbon type Gemini wetting agents are added into reactor, is warming up to
140 DEG C, insulation reaction 7h is cooled to room temperature, obtains fluorine carbon type Gemini wetting agents, in the fluorine carbon type Gemini wetting agents
The weight ratio of mesosome and the concentrated sulfuric acid is 1：0.1；The intermediate of the fluorine carbon type Gemini wetting agents and the polyethylene glycol
400 molar ratio is 1：2.1.
The preparation method of the siloxanes fundamental mode Gemini wetting agents, includes the following steps：
(1) 1,1,3,3- tetramethyl -1,3- divinyl disiloxane, hydroquinone of polymerization retarder are added into reactor,
100 DEG C are warming up to, 1,6- hexanediol diglycidyl ethers are slowly added dropwise, after being added dropwise, catalyst tetrabutylammonium bromide is added,
Insulation reaction 14h is concentrated under reduced pressure after reaction, obtains siloxanes fundamental mode Gemini wetting agent intermediates, and described 1,1,3,3- tetra-
Methyl-1,3- divinyl disiloxanes and the hydroquinone, 1, the 6- hexanediol diglycidyl ethers, the tetrabutyl
The molar ratio of ammonium bromide is 1：6：1：0.11；
(2) siloxanes fundamental mode Gemini wetting agents intermediate, the concentrated sulfuric acid, Macrogol 600, heating are added into reactor
To 140 DEG C, insulation reaction 6h is cooled to room temperature, obtains siloxanes fundamental mode Gemini wetting agents, the siloxanes fundamental mode Gemini
The weight ratio of wetting agent intermediate and the concentrated sulfuric acid is 1：0.12；The siloxanes fundamental mode Gemini wetting agents intermediate and institute
The molar ratio for stating Macrogol 600 is 1：2.1.
Embodiment 2
The polytetrafluorethylecoatings coatings composition for seal wire surface calculates by weight, described to be used for seal wire surface
Polytetrafluorethylecoatings coatings composition include 40 parts of PTFE emulsion, 8 parts of fluororesin, 0.6 part of antifoaming agent, 0.8 part of wetting agent, levelling
0.5 part of agent, 47 parts of water；
Wherein, the wetting agent is fluorine carbon type Gemini wetting agents, siloxanes fundamental mode Gemini wetting agents, Capstone
FS-30, it is fluorine carbon type Gemini wetting agents described in the wetting agent and the siloxanes fundamental mode Gemini wetting agents, described
The weight ratio of Capstone FS-30 is 1：0.7：1.3, the raw material for preparing of the fluorine carbon type Gemini wetting agents includes 2- (perfluors
Butyl) ethyl acrylate, butanediol diglycidyl ether, polyethylene glycol 400, siloxanes fundamental mode described in the wetting agent
The raw material for preparing of Gemini wetting agents includes 1,1,3,3- tetramethyl -1,3- divinyl disiloxane, the contracting of 1,6- hexylene glycols two
Water glycerin ether, Macrogol 600；The fluororesin is polyvinylidene fluoride resin and polyfluoroethylene resin, institute in the fluororesin
The weight ratio for stating polyvinylidene fluoride resin and the polyfluoroethylene resin is 0.3：1, the grain size of the fluororesin is 0.1 μm of -10 μ
m；The antifoaming agent is BYK-094；The levelling agent is EFKA 3777N；
The preparation method of the polytetrafluorethylecoatings coatings composition for seal wire surface, the fluorine carbon type Gemini wettings
The preparation method of agent, the preparation method is the same as that of Example 1 for the siloxanes fundamental mode Gemini wetting agents.
Embodiment 3
The polytetrafluorethylecoatings coatings composition for seal wire surface calculates by weight, described to be used for seal wire surface
Polytetrafluorethylecoatings coatings composition include 50 parts of PTFE emulsion, 8 parts of fluororesin, 0.6 part of antifoaming agent, 0.8 part of wetting agent, levelling
0.5 part of agent, 40 parts of water；
Wherein, the wetting agent is fluorine carbon type Gemini wetting agents, siloxanes fundamental mode Gemini wetting agents, Capstone
FS-30, it is fluorine carbon type Gemini wetting agents described in the wetting agent and the siloxanes fundamental mode Gemini wetting agents, described
The weight ratio of Capstone FS-30 is 1：0.7：1.3, the raw material for preparing of the fluorine carbon type Gemini wetting agents includes 2- (perfluors
Butyl) ethyl acrylate, butanediol diglycidyl ether, polyethylene glycol 400, siloxanes fundamental mode described in the wetting agent
The raw material for preparing of Gemini wetting agents includes 1,1,3,3- tetramethyl -1,3- divinyl disiloxane, the contracting of 1,6- hexylene glycols two
Water glycerin ether, Macrogol 600；The fluororesin is polyvinylidene fluoride resin and polyfluoroethylene resin, institute in the fluororesin
The weight ratio for stating polyvinylidene fluoride resin and the polyfluoroethylene resin is 0.3：1, the grain size of the fluororesin is 0.1 μm of -10 μ
m；The antifoaming agent is BYK-094；The levelling agent is EFKA 3777N；
The preparation method of the polytetrafluorethylecoatings coatings composition for seal wire surface, the fluorine carbon type Gemini wettings
The preparation method of agent, the preparation method is the same as that of Example 1 for the siloxanes fundamental mode Gemini wetting agents.
Embodiment 4
The polytetrafluorethylecoatings coatings composition for seal wire surface calculates by weight, described to be used for seal wire surface
Polytetrafluorethylecoatings coatings composition include 45 parts of PTFE emulsion, 8 parts of fluororesin, 0.6 part of antifoaming agent, 0.8 part of wetting agent, levelling
0.5 part of agent, 42 parts of water；
Wherein, the wetting agent is fluorine carbon type Gemini wetting agents, siloxanes fundamental mode Gemini wetting agents, Capstone
FS-30, it is fluorine carbon type Gemini wetting agents described in the wetting agent and the siloxanes fundamental mode Gemini wetting agents, described
The weight ratio of Capstone FS-30 is 1：0.1：2, the raw material for preparing of the fluorine carbon type Gemini wetting agents includes 2- (perfluor fourths
Base) ethyl acrylate, butanediol diglycidyl ether, polyethylene glycol 400, siloxanes fundamental mode Gemini described in the wetting agent
The raw material for preparing of wetting agent includes 1,1,3,3- tetramethyl -1,3- divinyl disiloxane, 1,6- hexylene glycol 2-glycidyls
Ether, Macrogol 600；The fluororesin is polyvinylidene fluoride resin and polyfluoroethylene resin, is gathered described in the fluororesin inclined
The weight ratio of fluoroethylene resin and the polyfluoroethylene resin is 0.3：1, the grain size of the fluororesin is 0.1 μm -10 μm；It is described
Antifoaming agent is BYK-094；The levelling agent is EFKA 3777N；
The preparation method of the polytetrafluorethylecoatings coatings composition for seal wire surface, the fluorine carbon type Gemini wettings
The preparation method of agent, the preparation method is the same as that of Example 1 for the siloxanes fundamental mode Gemini wetting agents.
Embodiment 5
The polytetrafluorethylecoatings coatings composition for seal wire surface calculates by weight, described to be used for seal wire surface
Polytetrafluorethylecoatings coatings composition include 45 parts of PTFE emulsion, 8 parts of fluororesin, 0.6 part of antifoaming agent, 0.8 part of wetting agent, levelling
0.5 part of agent, 42 parts of water；
Wherein, the wetting agent is fluorine carbon type Gemini wetting agents, siloxanes fundamental mode Gemini wetting agents, Capstone
FS-30, it is fluorine carbon type Gemini wetting agents described in the wetting agent and the siloxanes fundamental mode Gemini wetting agents, described
The weight ratio of Capstone FS-30 is 1：1：0.5, the raw material for preparing of the fluorine carbon type Gemini wetting agents includes 2- (perfluor fourths
Base) ethyl acrylate, butanediol diglycidyl ether, polyethylene glycol 400, siloxanes fundamental mode Gemini described in the wetting agent
The raw material for preparing of wetting agent includes 1,1,3,3- tetramethyl -1,3- divinyl disiloxane, 1,6- hexylene glycol 2-glycidyls
Ether, Macrogol 600；The fluororesin is polyvinylidene fluoride resin and polyfluoroethylene resin, is gathered described in the fluororesin inclined
The weight ratio of fluoroethylene resin and the polyfluoroethylene resin is 0.3：1, the grain size of the fluororesin is 0.1 μm -10 μm；It is described
Antifoaming agent is BYK-094；The levelling agent is EFKA 3777N；
The preparation method of the polytetrafluorethylecoatings coatings composition for seal wire surface, the fluorine carbon type Gemini wettings
The preparation method of agent, the preparation method is the same as that of Example 1 for the siloxanes fundamental mode Gemini wetting agents.
Embodiment 6
The polytetrafluorethylecoatings coatings composition for seal wire surface calculates by weight, described to be used for seal wire surface
Polytetrafluorethylecoatings coatings composition include 45 parts of PTFE emulsion, 8 parts of fluororesin, 0.6 part of antifoaming agent, 0.8 part of wetting agent, levelling
0.5 part of agent, 42 parts of water；
Wherein, the wetting agent is fluorine carbon type Gemini wetting agents, siloxanes fundamental mode Gemini wetting agents, Capstone
FS-30, it is fluorine carbon type Gemini wetting agents described in the wetting agent and the siloxanes fundamental mode Gemini wetting agents, described
The weight ratio of Capstone FS-30 is 1：0.7：1.3, the raw material for preparing of the fluorine carbon type Gemini wetting agents includes 2- (perfluors
Butyl) ethyl acrylate, butanediol diglycidyl ether, polyethylene glycol 400, siloxanes fundamental mode described in the wetting agent
The raw material for preparing of Gemini wetting agents includes 1,1,3,3- tetramethyl -1,3- divinyl disiloxane, the contracting of 1,6- hexylene glycols two
Water glycerin ether, Macrogol 600；The fluororesin is polyvinylidene fluoride resin and polyfluoroethylene resin, institute in the fluororesin
The weight ratio for stating polyvinylidene fluoride resin and the polyfluoroethylene resin is 0.2：1, the grain size of the fluororesin is 0.1 μm of -10 μ
m；The antifoaming agent is BYK-094；The levelling agent is EFKA 3777N；
The preparation method of the polytetrafluorethylecoatings coatings composition for seal wire surface, the fluorine carbon type Gemini wettings
The preparation method of agent, the preparation method is the same as that of Example 1 for the siloxanes fundamental mode Gemini wetting agents.
Embodiment 7
The polytetrafluorethylecoatings coatings composition for seal wire surface calculates by weight, described to be used for seal wire surface
Polytetrafluorethylecoatings coatings composition include 45 parts of PTFE emulsion, 8 parts of fluororesin, 0.6 part of antifoaming agent, 0.8 part of wetting agent, levelling
0.5 part of agent, 42 parts of water；
Wherein, the wetting agent is fluorine carbon type Gemini wetting agents, siloxanes fundamental mode Gemini wetting agents, Capstone
FS-30, it is fluorine carbon type Gemini wetting agents described in the wetting agent and the siloxanes fundamental mode Gemini wetting agents, described
The weight ratio of Capstone FS-30 is 1：0.7：1.3, the raw material for preparing of the fluorine carbon type Gemini wetting agents includes 2- (perfluors
Butyl) ethyl acrylate, butanediol diglycidyl ether, polyethylene glycol 400, siloxanes fundamental mode described in the wetting agent
The raw material for preparing of Gemini wetting agents includes 1,1,3,3- tetramethyl -1,3- divinyl disiloxane, the contracting of 1,6- hexylene glycols two
Water glycerin ether, Macrogol 600；The fluororesin is polyvinylidene fluoride resin and polyfluoroethylene resin, institute in the fluororesin
The weight ratio for stating polyvinylidene fluoride resin and the polyfluoroethylene resin is 1：1, the grain size of the fluororesin is 0.1 μm -10 μm；
The antifoaming agent is BYK-094；The levelling agent is EFKA 3777N；
The preparation method of the polytetrafluorethylecoatings coatings composition for seal wire surface, the fluorine carbon type Gemini wettings
The preparation method of agent, the preparation method is the same as that of Example 1 for the siloxanes fundamental mode Gemini wetting agents.
Comparative example 1
The polytetrafluorethylecoatings coatings composition for seal wire surface calculates by weight, described to be used for seal wire surface
Polytetrafluorethylecoatings coatings composition include 45 parts of PTFE emulsion, 8 parts of fluororesin, 0.6 part of antifoaming agent, 0.8 part of wetting agent, levelling
0.5 part of agent, 42 parts of water；
Wherein, the wetting agent is fluorine carbon type Gemini wetting agents, and the fluorine carbon type Gemini wetting agents prepare raw material
Including 2- (perfluoro butyl) ethyl acrylate, butanediol diglycidyl ether, polyethylene glycol 400, the fluororesin is to gather inclined fluorine
Vinyl and polyfluoroethylene resin, the weight of polyvinylidene fluoride resin and the polyfluoroethylene resin described in the fluororesin
Than being 0.3：1, the grain size of the fluororesin is 0.1 μm -10 μm；The antifoaming agent is BYK-094；The levelling agent is EFKA
3777N；
The preparation method of the polytetrafluorethylecoatings coatings composition for seal wire surface, the fluorine carbon type Gemini wettings
The preparation method is the same as that of Example 1 for the preparation method of agent.
Comparative example 2
The polytetrafluorethylecoatings coatings composition for seal wire surface calculates by weight, described to be used for seal wire surface
Polytetrafluorethylecoatings coatings composition include 45 parts of PTFE emulsion, 8 parts of fluororesin, 0.6 part of antifoaming agent, 0.8 part of wetting agent, levelling
0.5 part of agent, 42 parts of water；
Wherein, the wetting agent is siloxanes fundamental mode Gemini wetting agents, siloxanes fundamental mode described in the wetting agent
The raw material for preparing of Gemini wetting agents includes 1,1,3,3- tetramethyl -1,3- divinyl disiloxane, the contracting of 1,6- hexylene glycols two
Water glycerin ether, Macrogol 600；The fluororesin is polyvinylidene fluoride resin and polyfluoroethylene resin, institute in the fluororesin
The weight ratio for stating polyvinylidene fluoride resin and the polyfluoroethylene resin is 0.3：1, the grain size of the fluororesin is 0.1 μm of -10 μ
m；The antifoaming agent is BYK-094；The levelling agent is EFKA3777N；
The preparation method of the polytetrafluorethylecoatings coatings composition for seal wire surface, the siloxanes fundamental mode Gemini
The preparation method is the same as that of Example 1 for wetting agent.
Comparative example 3
The polytetrafluorethylecoatings coatings composition for seal wire surface calculates by weight, described to be used for seal wire surface
Polytetrafluorethylecoatings coatings composition include 45 parts of PTFE emulsion, 8 parts of fluororesin, 0.6 part of antifoaming agent, 0.8 part of wetting agent, levelling
0.5 part of agent, 42 parts of water；
Wherein, the wetting agent is Capstone FS-30, and the fluororesin is polyvinylidene fluoride resin and polyvinyl fluoride
The weight ratio of resin, polyvinylidene fluoride resin described in the fluororesin and the polyfluoroethylene resin is 0.3：1, the fluorine tree
The grain size of fat is 0.1 μm -10 μm；The antifoaming agent is BYK-094；The levelling agent is EFKA 3777N；
The preparation method is the same as that of Example 1 for the polytetrafluorethylecoatings coatings composition for seal wire surface.
Comparative example 4
The polytetrafluorethylecoatings coatings composition for seal wire surface calculates by weight, described to be used for seal wire surface
Polytetrafluorethylecoatings coatings composition include 45 parts of PTFE emulsion, 8 parts of fluororesin, 0.6 part of antifoaming agent, 0.8 part of wetting agent, levelling
0.5 part of agent, 42 parts of water；
Wherein, the wetting agent is fluorine carbon type Gemini wetting agents, siloxanes fundamental mode Gemini wetting agents, Capstone
FS-30, it is fluorine carbon type Gemini wetting agents described in the wetting agent and the siloxanes fundamental mode Gemini wetting agents, described
The weight ratio of Capstone FS-30 is 1：0.7：1.3, the raw material for preparing of the fluorine carbon type Gemini wetting agents includes 2- (perfluors
Butyl) ethyl acrylate, butanediol diglycidyl ether, polyethylene glycol 400, siloxanes fundamental mode described in the wetting agent
The raw material for preparing of Gemini wetting agents includes 1,1,3,3- tetramethyl -1,3- divinyl disiloxane, the contracting of 1,6- hexylene glycols two
Water glycerin ether, Macrogol 600；The fluororesin is polyfluoroethylene resin, and the grain size of the fluororesin is 0.1 μm -10 μm；Institute
It is BYK-094 to state antifoaming agent；The levelling agent is EFKA 3777N；
The preparation method of the polytetrafluorethylecoatings coatings composition for seal wire surface, the fluorine carbon type Gemini wettings
The preparation method of agent, the preparation method is the same as that of Example 1 for the siloxanes fundamental mode Gemini wetting agents.
Comparative example 5
The polytetrafluorethylecoatings coatings composition for seal wire surface calculates by weight, described to be used for seal wire surface
Polytetrafluorethylecoatings coatings composition include 53 parts of PTFE emulsion, 0.6 part of antifoaming agent, 0.8 part of wetting agent, 0.5 part of levelling agent, water
42 parts；
Wherein, the wetting agent is fluorine carbon type Gemini wetting agents, siloxanes fundamental mode Gemini wetting agents, Capstone
FS-30, it is fluorine carbon type Gemini wetting agents described in the wetting agent and the siloxanes fundamental mode Gemini wetting agents, described
The weight ratio of Capstone FS-30 is 1：0.7：1.3, the raw material for preparing of the fluorine carbon type Gemini wetting agents includes 2- (perfluors
Butyl) ethyl acrylate, butanediol diglycidyl ether, polyethylene glycol 400, siloxanes fundamental mode described in the wetting agent
The raw material for preparing of Gemini wetting agents includes 1,1,3,3- tetramethyl -1,3- divinyl disiloxane, the contracting of 1,6- hexylene glycols two
Water glycerin ether, Macrogol 600；The antifoaming agent is BYK-094；The levelling agent is EFKA 3777N；
The preparation method of the polytetrafluorethylecoatings coatings composition for seal wire surface, the fluorine carbon type Gemini wettings
The preparation method of agent, the preparation method is the same as that of Example 1 for the siloxanes fundamental mode Gemini wetting agents.
Comparative example 6
The polytetrafluorethylecoatings coatings composition for seal wire surface calculates by weight, described to be used for seal wire surface
Polytetrafluorethylecoatings coatings composition include 53 parts of PTFE emulsion, 0.6 part of antifoaming agent, 0.8 part of wetting agent, 0.5 part of levelling agent, water
42 parts；
Wherein, the wetting agent is Capstone FS-30, and the antifoaming agent is BYK-094；The levelling agent is EFKA
3777N；
The preparation method is the same as that of Example 1 for the polytetrafluorethylecoatings coatings composition for seal wire surface.
Performance test：
1, frictional force (lubricity) and durability test
Coating composition has arrived medical interventional guide wires surface, 316L stainless steel alloy seal wires, and measures its hydrophilic painting
The skin-friction force size (i.e. slickness) of layer and skin-friction force size after certain time impregnates and rinses are (i.e. lasting
Property).
Test method is as follows：Sample proximal end to be tested is connected on digital display dynamometer, entire test device is in same
It is horizontal.Before test starts, dynamometer is moved to initial position, in experimentation, dynamometer speed is 400mm/min, test
Distance is ± 10cm, and sample to be tested is put into angiography catheter, is fixed on vascular pattern, and control dynamometer is past relative to conduit
After move 10cm, sample is pushed into conduit again again after the completion of test, each sample repeats aforesaid operations 10 times, and record is each
Maximum pull acquires average value.
2, wetability is tested
According to the of different sizes of solid material surface liquid-drop contact angle, we can be determined that the hydrophilic and hydrophobic of material surface：
When material surface liquid-drop contact angle θ is less than 60 °, material shows as hydrophily, and wetability is good；If material surface water droplet contact angle
θ is more than 60 ° and is less than 90 °, and material shows as hydrophobicity, and wetability is general；If material surface water droplet contact angle θ is more than 90 °, material
Material shows as hydrophobicity, and wetability is poor.
Measurement method process is as follows：(a) sample to be tested is placed on contact angle analyzer testboard bay；(b) rotation is adjusted
Rotatable syringe, it is 1 μ L to make the drop volume of titration；(c) the distance between syringe needle point and sample surfaces and height are adjusted
Water droplet is dropped in specified test position by degree, slow rotary syringe handle；(d) test software is opened, captured in real-time liquid is passed through
Drop measures the size of contact angle, measures 10 times be averaged every time, to ensure the accuracy of result.
1 the performance test results of table
It is seen from the above data that provided by the present invention for the polytetrafluorethylecoatings coatings composition on seal wire surface,
It is simple with ingredient, performance is stable, strong adhesive force, coating efficiency are high, good biocompatibility, slickness can simultaneously be combined with matrix
It is good.
Example above-mentioned is merely illustrative, some features for explaining the method for the invention.Appended right is wanted
The range as wide as possible for being intended to require to be contemplated that is sought, and embodiments as presented herein is only according to all possible implementation
The explanation of the embodiment of the selection of the combination of example.Therefore, the purpose of applicant is that the attached claims are not illustrated this hair
The exemplary selectional restriction of bright feature.Some numberical ranges used also include sub- model in the claims
It encloses, the variation in these ranges should also be construed to be covered by the attached claims in the conceived case.
Claims (7)
1. a kind of polytetrafluorethylecoatings coatings composition for seal wire surface calculates, which is characterized in that described to be used for by weight
The polytetrafluorethylecoatings coatings composition on seal wire surface includes 30-55 parts of PTFE emulsion, 5-15 parts of fluororesin, antifoaming agent 0.1-1.0
Part, 0.1-1.0 parts of wetting agent, 0.1-1.0 parts of levelling agent, 40-50 parts of water；Wherein, the wetting agent is fluorine carbon type Gemini profits
Humectant, siloxanes fundamental mode Gemini wetting agents, Capstone FS-30；The Gemini wetting agents of fluorine carbon type described in the wetting agent
The raw material for preparing include 2- (perfluoro butyl) ethyl acrylate, butanediol diglycidyl ether, polyethylene glycol；In the wetting agent
The siloxanes fundamental mode Gemini wetting agents prepare raw material include 1,1,3,3- tetramethyl -1,3- divinyl disiloxanes,
1,6- hexanediol diglycidyl ether, polyethylene glycol.
2. being used for the polytetrafluorethylecoatings coatings composition on seal wire surface according to claim 1, calculate by weight, feature
It is, the polytetrafluorethylecoatings coatings composition for seal wire surface includes 35-50 parts of PTFE emulsion, 5-12 parts of fluororesin,
0.1-0.8 parts of antifoaming agent, 0.1-1.0 parts of wetting agent, 0.1-0.8 parts of levelling agent, 40-50 parts of water.
3. being used for the polytetrafluorethylecoatings coatings composition on seal wire surface according to claim 1, which is characterized in that the wetting
The type Gemini wetting agents of fluorine carbon described in agent and the siloxanes fundamental mode Gemini wetting agents, the weight of the Capstone FS-30
Amount is than being 1：(0.1-1)：(0.5-2).
4. being used for the polytetrafluorethylecoatings coatings composition on seal wire surface according to claim 1, which is characterized in that the fluorine tree
Fat includes polyflon, polychlorotrifluoroethylene resin, polyvinylidene fluoride resin, one kind in polyfluoroethylene resin or more
Kind.
5. being used for the polytetrafluorethylecoatings coatings composition on seal wire surface according to claim 1, which is characterized in that the defoaming
Agent is organic silicon antifoaming agent.
6. being used for the polytetrafluorethylecoatings coatings composition on seal wire surface according to claim 1, which is characterized in that the levelling
Agent is fluorine carbon levelling agent.
7. according to the preparation method for the polytetrafluorethylecoatings coatings composition for being used for seal wire surface described in any one claim 1-6,
It is characterized by comprising the following steps：
PTFE emulsion, fluororesin, wetting agent, levelling agent, water are added by weight into blender, then stirring at low speed 1h adds
Enter antifoaming agent, continue stirring for 24 hours, obtains the polytetrafluorethylecoatings coatings composition for being used for seal wire surface.
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Address after: 528200 Workshop 2 of Rongxing Industrial Zone No.13, Wuzhuang Datoyota Road, Luocun Town, Nanhai District, Foshan City, Guangdong Province Patentee after: Foshan right Medical Technology Co., Ltd. Address before: 528000 room 602, 46 South of the Five Ridges Avenue North, Chancheng District, Foshan, Guangdong. Patentee before: Foshan right Medical Technology Co., Ltd. |