CN106700383A - TPE material for tourniquet and preparation process thereof - Google Patents
TPE material for tourniquet and preparation process thereof Download PDFInfo
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- CN106700383A CN106700383A CN201611269789.6A CN201611269789A CN106700383A CN 106700383 A CN106700383 A CN 106700383A CN 201611269789 A CN201611269789 A CN 201611269789A CN 106700383 A CN106700383 A CN 106700383A
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
- C08L53/025—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/02—Inorganic materials
- A61L31/028—Other inorganic materials not covered by A61L31/022 - A61L31/026
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/04—Macromolecular materials
- A61L31/048—Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L31/16—Biologically active materials, e.g. therapeutic substances
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- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/10—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing inorganic materials
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/10—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing inorganic materials
- A61L2300/102—Metals or metal compounds, e.g. salts such as bicarbonates, carbonates, oxides, zeolites, silicates
- A61L2300/104—Silver, e.g. silver sulfadiazine
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/60—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a special physical form
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- 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
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Abstract
The invention discloses a TPE material for a tourniquet and a preparation process thereof. According to main points of the technical scheme, the TPE material for the tourniquet comprises, by mass parts, 100-200 parts of SEBS, 50-150 parts of white oil, 20-40 parts of polypropylene, 20-40 parts of polyphenyl ether, 10-20 parts of hydrogenated petroleum resin, 10-20 parts of styrene modified terpene resin, 5-10 parts of bacteriostatic agent, 1-2 parts of PP grafted silane coupling agent, 0.5-1.5 parts of antistatic agent, 0.2-0.6 part of slipping agent, 0.1-0.3 part of stabilizer and 2-3 parts of antibacterial agent. Through extrusion pelletization, the TPE material has excellent mechanical strength and resilience force.
Description
Technical field
The present invention relates to TPE elastomer, more particularly to a kind of tourniquet TPE material and its preparation technology.
Background technology
Tourniquet is that medical institutions infuse in conventional therapy and treatment, draw blood, transfuse blood, the regular medication used during hemostasis
Equipment, blocks blood route to reach the purpose of hemostasis by vascular compression, and tourniquet is generally using the resilient medical height of tool
Molecular material such as natural rubber or specific rubber are refined to be formed.
Thermoplastic elastomer (TPE) TPE (Thermoplastic Elastomer) has the characteristic of rubber and thermoplastic concurrently, both
Elastic deformation can occur as rubber at normal temperatures, deformation can be plastified as plastics at high temperature again, be as tourniquet
Preferred material, former tube for blood transfusion,latex can be replaced, have it is cheap, easy to carry, using health the characteristics of, with very
Extensive market prospects.
Due to being used as medical material, it is desirable to which tourniquet has good anti-microbial property, in order to improve the anti-of TPE material
Bacterium property, in the prior art, the patent of Publication No. CN104830011A discloses a kind of TPE compositions and property high prepared therefrom
Energy antibacterial tourniquet, it contains SEBS, PP, quaternary ammonium salt-modified shitosan, quaternary ammonium salt-modified on the basis of the total amount of SEBS and PP
The amount of shitosan is 2~15wt%.
Although the tourniquet described in above-mentioned patent can substantially meet demand in terms of antibiotic property, above-mentioned tourniquet is deposited
In the defect that mechanical strength is low and screen resilience is poor, the low purpose for being unable to reach vascular compression of mechanical strength, screen resilience difference then can
Cause body part to cause ischemic because blood is blocked, limbs are caused to damage.
The content of the invention
First purpose of the invention is to provide a kind of tourniquet TPE material, with excellent mechanical strength and returns
Elastic force.
Above-mentioned technical purpose of the invention technical scheme is that：
A kind of tourniquet TPE material, the TPE material is composed of the following components, the mass fraction of each component and each component
For：100~200 parts of SEBS, 50~150 parts of white oil, 20~40 parts of polypropylene, 20~40 parts of polyphenylene oxide, hydrogenated petroleum resin 10
~20 parts, 10~20 parts of styrenated terpene resins, 5~10 parts of bacteriostatic agent, it is 1~2 part of PP grafted silanes coupling agent, antistatic
0.5~1.5 part of agent, 0.2~0.6 part of slipping agent, 0.1~0.3 part of stabilizer, 2~3 parts of antiseptic.
By using above-mentioned technical proposal, SEBS is Polystyrene-Polyethylene-polybutene-polystyrene block copolymer,
At normal temperatures, SEBS include both sides polystyrene (PS) stiff plastic block and centre ethylene/butylene (EB) elastomer it is embedding
Section, both blocks are each other thermodynamically incompatible, so as to produce two phase structure, released state are presented in microcosmic phase,
SEBS is free of unsaturated double-bond, therefore with good stability and resistance to ag(e)ing, its heat resistance has compared to SBS and significantly carries
Height, electrical insulating property and miscibility also improve to some extent, with preferable wearability and pliability, can be as TPE material
Matrix；The compatibility of middle EB section of white oil and SEBS preferably, but PS phases in insoluble softening SEBS, it is oil-filled after SEBS products
Can continue to keep the physical cross-linked network of stabilization, the mobility of SEBS can increased, improve its processing characteristics, adjust its hard
While spending, the mechanical property of SEBS is not destroyed；Polypropylene is blended with SEBS, can lift polyacrylic compatibilization effect so that
The tensile strength of blend, elongation at break increase with the increase of polypropylene content, in lifting blend impact strength
Meanwhile, the rigidity of blend is not reduced yet, make blend that there is excellent resistance to halogenated hydrocarbons, the performance of oil resistant；Polyphenylene oxide has
Excellent physical and mechanical property, heat resistance and electrical apparatus insulation, meanwhile, its hygroscopicity is low, intensity is high, good stability of the dimension,
Polyphenylene oxide with it is polypropene blended, the melt of polyphenylene oxide while polyacrylic wearability and low-temperature flexibility is lifted, can be improved
Mobility；The addition of hydrogenated petroleum resin, can improve the resistance to ag(e)ing of material component, and heat-resist, compatibility adds, Ke Yiti
Polyphenylene oxide high and polyacrylic compatibility, improve the stability of material component；Styrenated terpene resins color is shallow, low smell tool
There are high rigidity, high adhesion force and preferable inoxidizability and heat endurance, it is used in conjunction with further carrying with hydrogenated petroleum resin
The compatibility and weatherability and Efficient Adhesive Promotion of material component are risen；The addition of bacteriostatic agent can suppress the growth of bacterium, prevent thin
Bacterium is excessive in material surface growth, harm health；PP grafted silanes coupling agent can be with the compatibility of improving material component, while can
With the bonding force and water-resistance of the inorganic filler in improving material component；Slipping agent can make the feel of TPE material more preferably；It is anti-
Oxygen agent can reduce the yellow of material and aging speed, and zinc stearate can increase the dispersiveness of component；By said components
Synergy so that obtained TPE material has excellent mechanical strength and screen resilience.
Preferably, described white oil is linear paraffin oil, the flash-point of the linear paraffin oil is higher than 200 DEG C.
By using above-mentioned technical proposal, linear paraffin oil is better than cycloalkanes with the compatibility of SEBS compared with naphthenic oil
Oil, while the phenyl ring block structure that will not be destroyed in SEBS, therefore the principle based on similar compatibility, with the increase of oil-filled quantity,
Filling oil increases the intermolecular reaction force attenuation of polybutadiene segments, EB sections of activity space increase, the elongation at break of SEBS
Greatly, melt flow index (MI) is improved, the decline of its tensile strength, 300% stress at definite elongation, Shao Er A type hardness testers and permanent deformation
Degree can be less than naphthenic oil, and flash-point linear paraffin oil high, with the linear paraffin oil more preferable compatibility lower than flash-point, is filling
During oil, the mechanical property of SEBS will not be excessively influenceed.
Preferably, the polypropylene is random copolymerization polypropylene, it is in 230 DEG C of temperature constant state 2.16kg load-carrying test-strips
Under part, melt index is 0.2~1.0g/10min.
By using above-mentioned technical proposal, atactic copolymerized polypropene (accounts for total matter by propylene monomer and a small amount of vinyl monomer
Amount than for 1~4%) copolymerization is obtained in heating, pressurization and under catalyst action, vinyl monomer is random, be randomly distributed to third
In the long-chain of alkene, reduce the fusing point of the crystallinity of polymer, improve polyacrylic impact, resistance to hydrostatic pressure, heat-resisting oxygen, resistance to old
The performance of change, all has an impact to polyacrylic mechanical property and processing characteristics, improves polyacrylic intensity and low-temperature flexibility.
Preferably, the antistatic additive is AEO.
By using above-mentioned technical proposal, AEO without effect, there is good wetting in component to skin
Property, emulsibility, dispersiveness, antiacid, alkali aspect, hard water resistance and oxidation resistant ability, simultaneously as its lubricity can be lifted at
It is good with moisture sorption effect, the hydrone in air can be absorbed after support RPE materials, one layer " moisture film " is formed, increased electric charge same
To the conduction of air, be conducive to sewing for TPE material electrostatic, play anlistatig effect.
Preferably, described slipping agent is the one or more of which in erucyl amide, oleamide or silicone master batch
Mixture.
Material shaping can be improved by using above-mentioned technical proposal, addition erucyl amide, oleamide or silicone master batch
During mobility, be more prone to die process, reduce product fraction defective, compared to other slipping agents, silicone master batch
With high molecular weight silicone polymer as key component, silty is fine and smooth, and the TPE material that addition silicone master batch is made has good
Feel, while also having antidetonation, anti-skidding performance.
Preferably, the bacteriostatic agent is the silver-colored silicic-boric acid sodium master batch of load.
By using above-mentioned technical proposal, silver-colored silicic-boric acid sodium master batch, barium sulfate are carried as inorganic bacteriostatic agent, with good
Anti-microbial property, security is good, because silver ion is dispersed poor in system, using silicic-boric acid sodium as silver ion carrier,
The porous shape stabilization of silicic-boric acid sodium, with preferable silver ion slow-release capability, make not only there is good antibacterial effect but have compared with
Antibacterial effect long, meanwhile, the lower temperature resistance of material can be lifted.
Preferably, the antiseptic is made up of zeolite with carrying silver and polyacrylate, wherein zeolite with carrying silver: polyacrylate
Mass ratio be 1: 1.2, the quality total number of zeolite with carrying silver and polyacrylate is 2~3 parts.
By using above-mentioned technical proposal, Nano Silver is dispersed and bad in thermoplastic elastomer (TPE), can cause mechanics
Intensity decreases, by by nano-silver loaded to zeolite, and with the obtained antiseptic of polyacrylate compounding, its dispersiveness have compared with
Big lifting, in system, also with strengthen mechanical property the characteristics of, the tensile strength of TPE material can be lifted.
Preferably, the antioxidant is to be made up of antioxidant 1010 and irgasfos 168, the wherein mass ratio of each component
For：Antioxidant 1010: irgasfos 168=1: 1.
By using above-mentioned technical proposal, antioxidant 1010 is a kind of polynary hindered phenol type antioxidant, is polymerized with most of
Thing has good compatibility, plays the role of the good light and heat that prevents and causes TPR materials to change colour, it is possible to reduce material is heated always
The situation of change；There is good cooperative effect in antioxidant 1010 addition irgasfos 168, can effectively prevent component to be molded on basis
Middle generation thermal degradation.
Second object of the present invention is to provide a kind of preparation technology of tourniquet TPE material, improve TPE material into
Material rate.
Above-mentioned technical purpose of the invention technical scheme is that：
A kind of preparation technology of tourniquet TPE material, it is characterised in that comprise the following steps：
(1) SEBS and white oil are set into 600~800r/min of rotating speed in homogenizer and mixes 2~3min；
(2) other material auxiliary agents are added in the material completed toward mixing in step (1), 1000~1500r/min of rotating speed is set and is mixed
Close 2~3min；
(3) through melting extrusion in the material addition double screw extruder of draw ratio 44~48: 1 for completing step (2) mixing, make
Grain.
By using above-mentioned technical proposal, compared with polymer other forming methods, extruding-out process has production continuous
Change, production efficiency is high, have a wide range of application, it is with low cost the characteristics of, homogenizer makes SEBS fully oil-filled, adds auxiliary agent laggard
One step mixed at high speed, make auxiliary agent with it is oil-filled after SEBS be sufficiently mixed, by double screw extruder melting extrusion, granulation is obtained
TPE material, double screw extruder can promote material to mix, and improve dispersion and the plasticizing effect of mixing material, it is ensured that effluent
Large quantity of moisture and low molecular weight volatile thing in material, make material dispersion uniform, make discharging finer and smoother, so as to improve TPE material table
Face more smooths, and grips feel more smooth.
Preferably, the melt temperature of double screw extruder is set to 220~240 DEG C, body rotating speed in the step (3)
It is set to 240~400r/min, 2~3min of residence time.
By using above-mentioned technical proposal, improving temperature can promote the mixed effect of powder, and except filler, auxiliary agent can also divide
It is scattered evenly；Improve temperature it is corresponding be exactly the rotating speed for properly increasing screw rod, can improve the shearing force of plastic cement, improve mixed
The uniformity of conjunction.
In sum, the invention has the advantages that：
1. the TPE material has good mobility, and its good mechanical performance, screen resilience is good, while feel is smooth, is being made only
During blood band use, it is not easy to cause tension to patient；
2. the TPE material has good antibiotic property, and in hospital etc., flora species is complicated, under pernicious bacteria environment on the high side, according to
It is old to play good antibacterial action.
Specific embodiment
SEBS selects the one of which or two or more mixtures of SEBS6151, SEBS6154, SEBS9551, its
Middle SEBS6151 and SEBS6154 are purchased from Yuyao Tian Duo plastic cement Science and Technology Ltd., and SEBS9551 is purchased from Zhejiang Yuyao and adds nation's green wood
Material Co., Ltd, butadiene block is with the weight ratio of styrene block in above-mentioned three kinds of SEBS materials：
Butadiene block in SEBS 6151: styrene block=68/32wt%；
Butadiene block in SEBS 6154: styrene block=69/31wt%；
Butadiene block in SEBS9551: styrene block=67/33wt%.
White oil is purchased from Zhejiang and is just being believed that petroleum science and technology has from the one of which or two or more mixtures of 26#, 32#
Limit company；200 DEG C of white oil 26# flash-points (opening), 220 DEG C of white oil 32# flash-points (opening).
Hydrogenated petroleum resin selects PICCOLASTIC D-125, from Yi Shi Man of U.S. imported with original packaging.
Styrenated terpene resins are selectedHM106, from skin Nova company of U.S. imported with original packaging.
Bacteriostatic agent is from the silver-colored silicic-boric acid sodium master batch of load.
Stabilizer is made up of antioxidant 1010 and the mixing of antioxidant 168, and its each component mass ratio is antioxidant
1010: antioxidant 168=1: 1.
One of which or two or more mixture of the slipping agent from erucyl amide, oleamide and silicone master batch.
Antiseptic is made up of zeolite with carrying silver and polyacrylate, and its mixing quality ratio is zeolite with carrying silver: polyacrylate=1
: 1.2, the mass fraction of the total amount of its addition is 2~3 parts.
Embodiment one
(1) choose following components and its 100 parts and white oil 26#80 parts of mass fraction SEBS6151 is set in homogenizer
Rotating speed 600r/min mixing 3min；
(2) following components and its mass fraction are added in the material completed toward mixing in step (1)：20 parts of polypropylene, polyphenylene oxide
40 parts, 10 parts of hydrogenated petroleum resin, 20 parts of styrenated terpene resins, carry silver-colored 5 parts of silicic-boric acid sodium master batch, PP grafted silane idols
1 part of agent of connection, 0.75 part of AEO, 0.2 part of erucyl amide, 0.5 part of stabilizer, AEO 0.5
Part, 2 parts of antiseptic, set rotating speed 1000r/min mixing 3min；
(3) step (2) is mixed in the material addition double screw extruder of draw ratio 44: 1 for completing, it is 220 to set melt temperature
DEG C, body rotating speed is 220r/min, residence time 2min, and through melting extrusion, granulation obtains a kind of tourniquet TPE material.
Embodiment two
(1) choose following components and its 200 parts and white oil 26#150 parts of mass fraction SEBS6154 is set in homogenizer
Rotating speed 700r/min mixing 2min；
(2) following components and its mass fraction are added in the material completed toward mixing in step (1)：40 parts of polypropylene, polyphenylene oxide
30 parts, 15 parts of hydrogenated petroleum resin, 15 parts of styrenated terpene resins, carry silver-colored 6 parts of silicic-boric acid sodium master batch, PP grafted silane idols
1.2 parts of agent of connection, 0.9 part of AEO, 0.6 part of oleamide, 0.15 part of stabilizer, AEO
0.7 part, 3 parts of antiseptic, set rotating speed 1500r/min mixing 2min；
(3) step (2) is mixed in the material addition double screw extruder of draw ratio 48: 1 for completing, it is 225 to set melt temperature
DEG C, body rotating speed is 230r/min, residence time 3min, and through melting extrusion, granulation obtains a kind of tourniquet TPE material.
Embodiment three
(1) choose following components and its 150 parts and white oil 26#50 parts of mass fraction SEBS9551 is set in homogenizer
Rotating speed 800r/min mixing 2.5min；
(2) following components and its mass fraction are added in the material completed toward mixing in step (1)：30 parts of polypropylene, polyphenylene oxide
35 parts, 17 parts of hydrogenated petroleum resin, 12 parts of styrenated terpene resins, carry silver-colored 7 parts of silicic-boric acid sodium master batch, PP grafted silane idols
2 parts of agent of connection, 1.2 parts of AEO, 0.4 part of silicone master batch, 0.2 part of stabilizer, AEO 0.9
Part, 2.2 parts of antiseptic, set rotating speed 1200r/min mixing 2.5min；
(3) step (2) is mixed in the material addition double screw extruder of draw ratio 48: 1 for completing, it is 240 to set melt temperature
DEG C, body rotating speed is 350r/min, residence time 2.5min, and through melting extrusion, granulation obtains a kind of tourniquet TPE material.
Example IV
(1) following components and its 90 parts of mass fraction SEBS6151,50 parts and white oil 32#120 parts of SEBS6154 are chosen in height
Rotating speed 750r/min mixing 2.2min is set in fast mixer；
(2) following components and its mass fraction are added in the material completed toward mixing in step (1)：35 parts of polypropylene, polyphenylene oxide
25 parts, 11 parts of hydrogenated petroleum resin, 17 parts of styrenated terpene resins, carry silver-colored 8 parts of silicic-boric acid sodium master batch, PP grafted silane idols
1.6 parts of agent of connection, 1.5 parts of AEO, 0.2 part of oleamide, 0.2 part of erucyl amide, 0.25 part of stabilizer, fat
1.1 parts of alcohol APEO, 2.4 parts of antiseptic, set rotating speed 1300r/min mixing 2.4min；
(3) step (2) is mixed in the material addition double screw extruder of draw ratio 48: 1 for completing, it is 235 to set melt temperature
DEG C, body rotating speed is 400r/min, residence time 2.1min, and through melting extrusion, granulation obtains a kind of tourniquet TPE material.
Embodiment five
(1) following components and its 100 parts of mass fraction SEBS6154,70 parts and white oil 26#75 parts of SEBS9511, white oil are chosen
32#75 parts, rotating speed 650r/min mixing 2.4min is set in homogenizer；
(2) following components and its mass fraction are added in the material completed toward mixing in step (1)：28 parts of polypropylene, polyphenylene oxide
34 parts, 20 parts of hydrogenated petroleum resin, 10 parts of styrenated terpene resins, carry silver-colored 9 parts of silicic-boric acid sodium master batch, PP grafted silane idols
1.7 parts of agent of connection, 1.4 parts of AEO, 0.3 part of erucyl amide, 0.3 part of silicone master batch, 0.3 part of stabilizer, fat
1.2 parts of alcohol APEO, 2.6 parts of antiseptic, set rotating speed 1400r/min mixing 2.6min；
(3) step (2) is mixed in the material addition double screw extruder of draw ratio 44: 1 for completing, it is 230 to set melt temperature
DEG C, body rotating speed is 225r/min, residence time 2.4min, and through melting extrusion, granulation obtains a kind of tourniquet TPE material.
Embodiment six
(1) following components and its 70 parts of mass fraction SEBS6151,120 parts and white oil 26#20 parts of SEBS9551, white oil are chosen
32#120 parts, rotating speed 770r/min mixing 2.8min is set in homogenizer；
(2) following components and its mass fraction are added in the material completed toward mixing in step (1)：37 parts of polypropylene, polyphenylene oxide
29 parts, 18 parts of hydrogenated petroleum resin, 26 parts of styrenated terpene resins, carry silver-colored 10 parts of silicic-boric acid sodium master batch, PP grafted silanes
1.4 parts of coupling agent, 1.2 parts of AEO, 0.1 part of oleamide, 0.4 part of silicone master batch, 0.18 part of stabilizer, fat
0.8 part of fat alcohol APEO, 2.8 parts of antiseptic, set rotating speed 1250r/min mixing 2.7min；
(3) step (2) is mixed in the material addition double screw extruder of draw ratio 48: 1 for completing, it is 222 to set melt temperature
DEG C, body rotating speed is 275r/min, residence time 2.7min, and through melting extrusion, granulation obtains a kind of tourniquet TPE material.
Embodiment seven
(1) 60 parts of following components and its mass fraction SEBS6151,60 parts of SEBS6154,60 parts of SEBS9551 and white are chosen
Oily 26#120 parts, white oil 32#20 parts, the setting rotating speed 685/min mixing 2.7min in homogenizer；
(2) following components and its mass fraction are added in the material completed toward mixing in step (1)：34 parts of polypropylene, polyphenylene oxide
33 parts, 16 parts of hydrogenated petroleum resin, 18 parts of styrenated terpene resins, carry silver-colored 8.3 parts of silicic-boric acid sodium master batch, PP grafted silanes
1.8 parts of coupling agent, 0.8 part of AEO, 0.2 part of erucyl amide, 0.2 part of oleamide, 0.2 part of silicone master batch,
0.27 part of stabilizer, 1 part of AEO, 2.5 parts of antiseptic, set rotating speed 1350r/min mixing 2.8min；
(3) step (2) is mixed in the material addition double screw extruder of draw ratio 44: 1 for completing, it is 227 to set melt temperature
DEG C, body rotating speed is 360r/min, residence time 2.8min, and through melting extrusion, granulation obtains a kind of tourniquet TPE material.
7 groups of TPE materials are made by above-described embodiment, performance test is carried out, test event and testing standard are as follows：
Density (g/m3)：Tested by ISO1183 standards；
Melt index (g/10min)：Tested by ISO1133 standards；
Shore hardness A：Tested by ISO7619-1 standards；
Tensile stress at break (Mpa)：Tested by ISO37 standards；
Elongation at break (%)：Tested by ISO37 standards；
Tensile stress (Mpa)：Tested by ISO37 standards, test condition is divided into 100% strain, 200% strain and 300%
Strain；
Tearing strength (KN/m)：Tested by ISO34-1 standards；
Antibiotic property：By JIS Z2801 standard testings staphylococcus aureus antibacterial activity values and Escherichia coli antibacterial activity value.
Test result is as follows：
According to test result, selection embodiment six is used as optimum embodiment.
Comparative example one
Comparative example one is embodiment six without TPE material obtained in hydrogenated petroleum resin.
Comparative example two
Comparative example two is embodiment six without TPE material obtained in polyphenylene oxide.
Comparative example three
Comparative example three is embodiment six without TPE material obtained in styrenated terpene resins.
Comparative example four
Comparative example four is embodiment six without TPE material obtained in styrenated terpene resins, polyphenylene oxide.
Comparative example five
Comparative example five is without TPE obtained in hydrogenated petroleum resin, styrenated terpene resins, polyphenylene oxide by embodiment six
Material.
Comparative example six
Comparative example six is embodiment six without TPE material obtained in antistatic additive.
Comparative example seven
Comparative example seven is embodiment six without TPE material obtained in polyphenylene oxide and antistatic additive.
7 groups of TPE materials are made by above-mentioned comparative example, performance test are carried out and is compared in embodiment eight, test event
And method is ibid：
Test result is as follows：
To sum up：Knowable to above-described embodiment and comparative example, TPE material obtained in the formula has good mobility, its mechanics
Function admirable, screen resilience is good, while feel is smooth；Also there is good antibiotic property, good antibacterial action can be played.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification without creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected by Patent Law in the right of invention.
Claims (10)
1. a kind of tourniquet TPE material, it is characterised in that the TPE material is composed of the following components, each component and each group
Point mass fraction be：100 ~ 200 parts of SEBS, 50 ~ 150 parts of white oil, 20 ~ 40 parts of polypropylene, 20 ~ 40 parts of polyphenylene oxide, hydrogenation
10 ~ 20 parts of Petropols, 10 ~ 20 parts of styrenated terpene resins, 5 ~ 10 parts of bacteriostatic agent, 1 ~ 2 part of PP grafted silanes coupling agent,
0.5 ~ 1.5 part of antistatic additive, 0.2 ~ 0.6 part of slipping agent, 0.1 ~ 0.3 part of stabilizer, 2 ~ 3 parts of antiseptic.
2. a kind of tourniquet TPE material according to claim 1, it is characterised in that described white oil is linear paraffin
Oil, the flash-point of the linear paraffin oil is higher than 200 DEG C.
3. a kind of tourniquet TPE material according to claim 1, it is characterised in that the polypropylene is random copolymerization
Polypropylene, under 230 DEG C of temperature constant state 2.16kg load-carrying test conditions, melt index is 0.2 ~ 1.0g/10min for it.
4. a kind of tourniquet TPE material according to claim 1, it is characterised in that the antistatic additive is fatty alcohol
APEO.
5. a kind of tourniquet TPE material according to claim 1, it is characterised in that described slipping agent is erucic acid acyl
One or more of which mixture in amine, oleamide or silicone master batch.
6. a kind of tourniquet TPE material according to claim 1, it is characterised in that the bacteriostatic agent is to carry silver-colored silicon boron
Sour sodium master batch.
7. a kind of tourniquet TPE material according to claim 1, it is characterised in that the antiseptic is by zeolite with carrying silver
With polyacrylate composition, wherein zeolite with carrying silver：The mass ratio of polyacrylate is 1：1.2, zeolite with carrying silver and polyacrylate
Quality total number be 2 ~ 3 parts.
8. a kind of tourniquet TPE material according to claim 1, it is characterised in that the antioxidant is by antioxidant
1010 and irgasfos 168 composition, wherein antioxidant 1010：The mass ratio of irgasfos 168 is 1：1.
9. a kind of preparation technology of the tourniquet TPE material according to claim any one of 1-8, it is characterised in that bag
Include following steps：
（1）SEBS and white oil are set into 600 ~ 800r/min of rotating speed in homogenizer and mixes 2 ~ 3min；
（2）Toward step（1）Other material auxiliary agents are added in the material that middle mixing is completed, 1000 ~ 1500r/min of rotating speed mixing is set
2~3min；
（3）By step（2）Mix the material for completing and add draw ratio 44 ~ 48：Through melting extrusion in 1 double screw extruder, granulation.
10. a kind of preparation technology of tourniquet TPE material according to claim 9, it is characterised in that the step
（3）The melt temperature of middle double screw extruder is set to 220 ~ 240 DEG C, and body rotating speed is set to 240 ~ 400r/min, during stop
Between 2 ~ 3min.
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| CN114163827A (en) * | 2021-12-30 | 2022-03-11 | 常州恒方大高分子材料科技有限公司 | TPE material for tourniquet and preparation method thereof |
| CN114773767A (en) * | 2022-05-13 | 2022-07-22 | 安徽雄亚塑胶科技有限公司 | Matte dry high-elasticity TPE tension sheet material and preparation method thereof |
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| CN114773767A (en) * | 2022-05-13 | 2022-07-22 | 安徽雄亚塑胶科技有限公司 | Matte dry high-elasticity TPE tension sheet material and preparation method thereof |
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