CN106916406A - A kind of TPE infusion bags and preparation method thereof - Google Patents
A kind of TPE infusion bags and preparation method thereof Download PDFInfo
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- CN106916406A CN106916406A CN201710261784.7A CN201710261784A CN106916406A CN 106916406 A CN106916406 A CN 106916406A CN 201710261784 A CN201710261784 A CN 201710261784A CN 106916406 A CN106916406 A CN 106916406A
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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
- 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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- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/10—Peculiar tacticity
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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
- C08L2312/00—Crosslinking
Abstract
The present invention relates to a kind of TPE infusion bags, the TPE infusion bags are prepared from by the raw material of formula as below：SEBS100 weight portions；The weight portions of hydroxyl SBS1 5；PP40~120 weight portion；Oily 5~20 weight portions of filling；The weight portion of Graphene LDPE blends 0.1 10；The weight portion of antioxidant 0.1~1；The weight portion of slipping agent 0.1 0.3.TPE infusion bags of the invention greatly reduce the migrations of the small molecule in high-temperature sterilization such as filling oil, reduce the pollution of TPE infusion bag particulate matters.
Description
Technical field
The invention belongs to TPE material field, more particularly it relates to a kind of TPE infusion bags and
Its preparation method.
Background technology
At present in infusion bag production field, it is divided into PVC (vinyl chloride) or its copolymer and bis- kinds of materials of non-PVC.Contain in PVC
There is polyvinyl chloride monomer, be unfavorable for the health of human body, PVC adds plasticizer (DEHP) to change its performance in process of production,
There may be DEHP dissolutions during its use, DEHP is a kind of harmful substance and releasable female hormone, and contact DEHP may
Cause Development of Reproductive System bad, serious harm health.PVC and its copolymer heat resistance are poor, and sterilisation temp can only be controlled
Below 110 DEG C, temperature raises sack and is also easy to produce deformation explosion system again, it is impossible to reach Sterility Assurance requirement (F0 ＜ 12) (China
The sterilizing standard of pharmacopeia defined), also it is easily caused medicine microbiological contamination and goes bad and patient's pyrogen reaction.The empty bag of PVC transfusions places half a year
Afterwards, alcohol leachable, reducing substances, zinc ion and pH value etc. easily it is exceeded, it is another PVC bag pack medicine during storage, portion
Dividing medicine can occur migration adsorption reaction with PVC material, and so as to cause, the drug effect reduction even generation of medicine is rotten can not to be used.
Hydrochloric acid can be formed after PVC and its copolymer burning, causes humans and animals respiratory tract to injure and the erosion to building, when separately burning
It is also easy to produce dioxin and far-reaching influence is produced to environment.
FDA Food and Drug Administration of the U.S. (FDA) thinks styrene-hydrogenated diene hydrocarbon block copolymer material totally nontoxic, no
Allergy, variation and rejection can be produced to tissue, with heatproof, ageing-resistant and uvioresistant performance, can be steamed using high temperature
Boil and directly sterilized with ultraviolet, meet the food medical standard of promulgation.Therefore styrene-the hydrogenation two of Shell Co. Ltd of U.S. production
Olefin copolymer product obtained FDA Food and Drug Administration of the U.S. (FDA) food medical treatment in 1980 and uses licensing.This just says
Bright styrene-hydrogenated diene hydrocarbon block copolymer can be as the basic material of production medicine equipment.However, TPE infusion bags by
In containing SEBS, white oil, after high temperature sterilization, there is possibility to the situation that the pollutants such as particulate matter are introduced in liquid.
The content of the invention
In order to solve the above problems, of the invention there is provided a kind of TPE infusion bags, the TPE infusion bags are by formula as below
Raw material be prepared from：
SEBS100 weight portions；
Hydroxyl SBS 1-5 weight portions；
PP40~120 weight portion；
Oily 1~10 weight portion of filling；
Graphene-LDPE blend 0.1-10 weight portions；
The weight portion of antioxidant 0.1~1；
Slipping agent 0.1-0.3 weight portions.
The PP is isotactic polypropylene, the mixture of high melt strength, propylene.
Under the conditions of 230 DEG C/2.16kg, melt flow rate (MFR) is 5-30g/10min to the isotactic polypropylene.
Under the conditions of 230 DEG C/2.16kg, melt flow rate (MFR) is 0.1-1g/10min to the high melt strength, propylene.
The isotactic polypropylene is 1 with the mass ratio of high melt strength, propylene：0.1-0.5.
The hydroxyl value of the hydroxyl SBS is 10-50mgKOH/g.
The preparation method of the hydroxyl SBS is：
Dissolved during SBS is put into toluene solvant, anhydrous formic acid and hydrogen peroxide are slowly added drop-wise in reaction bulb respectively.In
Stirring reaction at 40 DEG C~80 DEG C, after reaction terminates, reaction solution is poured into methanol solution and is precipitated, and filtering, methyl alcohol is repeatedly washed,
By gained floccule in constant weight is being dried under vacuum at 40-50 DEG C, hydroxyl SBS is obtained final product.
Any one of the filling grease separation from aromatics mineral oil, naphthenic mineral oils or paraffin class mineral oil.
In the Graphene-polyolefin blends, the content of Graphene accounts for 15-40wt%.
A kind of preparation method of TPE infusion bags, comprises the following steps：
The SEBS of 100 weight portions, hydroxyl SBS, the PP of 40~120 weight portions of 1-5 weight portions are weighed, 40-100 weight portions
Filling oil, the Graphene-LDPE blends of 0.1-10 weight portions, the antioxidant of 0.1~1 weight portion, 0.1-0.3 weight portions it is refreshing
Lubrication prescription, load weighted raw material is poured into high-speed mixer, well mixed by stirring at low speed and high-speed stirred；Mixing time control
System is in 6-8min；
The raw material input storage bin hopper that will be mixed, through comminutor extrusion plastic silk, after purifying water cooling, is carried out through hair dryer
Drying, cleaved machine excision forming, are made infusion bag pellet；
Infusion bag pellet vacuum is drawn into heating cylinder, heated barrel nozzle feeding hot flow path note road cast gate, by hot flow path
Sprue bushing heats pulp consistence material；
Injection mold is sent into by hot runner nozzle, is molded, form preform；
Preform feeding blow mold is carried out blowing bag, gas blow molding is made infusion bag；Sent by unloading device
Go out infusion bag；Wherein, heating cylinder temperature, hot flow path temperature control blow bag air pressure control in 1.2- at 180-220 DEG C
1.5MPa；Operation air pressure control is in 0.7-0.9MPa.
Beneficial effects of the present invention：
The present invention, using the double bond and hydroxyl in hydroxyl SBS, is active crosslinking points with Graphene, forms substantial amounts of in TPE
Micro- cross-linked structure, coordinates the branched structure of high melt strength, propylene, greatly reduces the small molecules such as filling oil in high-temperature sterilization
When migration, reduce the pollution of TPE infusion bag particulate matters.
The above-mentioned of the application and other features, aspect and advantage is more readily understood with reference to described further below.
Specific embodiment
The participation in the election detailed description for being preferable to carry out method of the invention below and including embodiment this public affairs can be more easily understood
Open content.A large amount of terms can be referred in description below and claims, these terms are defined as following meanings.
Singulative includes that plural number discusses object, unless the context clearly dictates otherwise.
" optional " or " optionally " refers to that the item that describes thereafter or event may or may not occur, and this is retouched
State the situation that situation and event including event generation do not occur.
Approximate term in specification and claims is used for modifying quantity, represents that the present invention is not limited to this specific
Quantity, also including the acceptable part without cause the amendment of the change of related basic function close to the quantity.Phase
Answer, a numerical value is modified with " about ", " about " etc., mean the invention is not restricted to the exact numerical.In some examples, approximately
Term likely corresponds to the precision of the instrument of measured value.In present specification and claims, scope is limited can be with
Combine and/or exchange, these scopes include all subranges contained therebetween if not stated otherwise.
As used herein term " by ... prepare " it is synonymous with "comprising".Term "comprising" used herein, " including ",
" having ", " containing " or its any other deformation, it is intended that cover including for non-exclusionism.For example, the combination comprising listed elements
Thing, step, method, product or device are not necessarily limited to those key elements, and can be including not expressly listed other key elements or
This kind of composition, step, method, product or the intrinsic key element of device.
Conjunction " Consists of " excludes any key element do not pointed out, step or component.If be used in claim, this
Phrase will make claim be closed, it is not included the material in addition to the material that those are described, but relative normal
Except rule impurity.When phrase " Consists of " is appeared in be rather than immediately following after theme in the clause of claim main body,
It is only limited to the key element described in the clause；Other key elements are not excluded outside as the overall claim.
Equivalent, concentration or other values or parameter are excellent with scope, preferred scope or a series of upper limit preferred values and lower limit
During the Range Representation that choosing value is limited, this is appreciated that and specifically discloses by any range limit or preferred value and any scope
All scopes that any pairing of lower limit or preferred value is formed, regardless of whether whether the scope separately discloses.For example, when open
During scope " 1 to 5 ", described scope should be interpreted as including scope " 1 to 4 ", " 1 to 3 ", " 1-2 ", " 1-2 and 4-5 ",
" 1-3 and 5 " etc..When number range is described herein, unless otherwise indicated, otherwise the scope be intended to include its end value with
All integers and fraction within the range.
Additionally, the indefinite article " one kind " and " one " before key element of the present invention or component are to key element or the quantitative requirement of component
(i.e. occurrence number) unrestriction.Therefore " one " or " one kind " should be read as including one or at least one, and odd number
The key element or component of form also include plural form, unless the obvious purport of the quantity refers to singulative.
Term " SEBS " used herein refers to polystyrene as end segment, with the second that polybutadiene hydrogenation is obtained
Alkene-butylene copolymer is the linear three block copolymer of intermediate elastic block.
PP described herein is acrylic resin, and it includes HOPP, COPP and random copolymerization poly- third
At least one in alkene.The addition of acrylic resin can be that the strand of SEBS rubber resins is more soft, so as to increase
The elasticity of product, makes it have the feel and mechanics performance of softness.Additionally, polypropylene also to chemical erosion have it is very strong
Resistance, so as to improve the anti-chemical method corrosivity of SEBS thermoplastic elastomer (TPE)s.
The filling oil improves the compatibility of multiphase in composite mainly as lubricant.The filling oil can be selected
Select aromatics mineral oil, naphthenic mineral oils, paraffin class mineral oil, preferably paraffin class mineral oil, such as white oil.Add filling
Property of the amount of oil needed for, its upper limit depends on the compatibility of specific oil and blend composition, when filling out for excess outflow
It is oil-filled when occurring, i.e., beyond the limitation.
In one embodiment, white oil is by the mixture of oil gained refining liquid hydrocarbon, the predominantly cycloalkanes of saturation
Hydrocarbon and alkane mixture, crude oil are obtained through normal pressure and vacuum fractionation, solvent extraction and dewaxing, hydrofinishing.The application dialogue
Oil is not particularly limited, commercially available acquisition.
Hydroxyl SBS：
Term " hydroxyl SBS " of the present invention refers to be prepared by SBS, hydrogen peroxide, anhydrous formic acid.The hydroxyl SBS's
Preparation method is：In four-hole bottle, a certain amount of SBS is put into 50ml toluene solvants and is dissolved, by 50ml anhydrous formic acids and
5ml hydrogen peroxide is slowly added drop-wise in reaction bulb respectively.In stirring reaction at 40 DEG C~80 DEG C, after reaction terminates, will react
Liquid is poured into methanol solution and precipitated, and filtering, methyl alcohol is repeatedly washed, by gained floccule in dry in vacuum drying at 41 DEG C
8h, obtains final product hydroxyl SBS.
As a kind of perferred technical scheme, the hydroxy radical content of hydroxyl SBS of the invention is 0.1-3mg/g.
Graphene-LLDPE blends：
LLDPE is ethene and a small amount of high alpha-olefin (such as butene-1, hexene -1, octene-1, tetramethyl amylene -1）In catalysis
Under agent effect, through high pressure or a kind of copolymer of low-pressure polymerization.
Graphene be it is a kind of the monoatomic layer two dimensional crystal for being formed is connected with sp2 hydridization by carbon atom, carbon atom is regular
It is arranged among honeycomb lattice construction unit.Each carbon atom is remaining in addition to being connected with three carbon atoms of σ keys and other
The pi-electron of pi-electron and other carbon atoms form the big π keys of delocalization, electronics can be moved freely in this region, so that Graphene
With excellent electric conductivity.Meanwhile, this closelypacked alveolate texture is also the elementary cell for constructing other carbon materials,
The Graphene of monoatomic layer can be wrapped to form the fullerene of zero dimension, and the Graphene of individual layer or multilayer can curl into single wall
Or the CNT of many walls.
Because each carbon atom in Graphene is combined into very strong σ keys, therefore graphite with three adjacent carbon atoms
Alkene equally shows excellent mechanical property.Recently, Columbia University scientist is directly tested using AFM
The mechanical property of single-layer graphene, it is found that the Young's modulus of Graphene is about 1100GPa, and fracture strength is even more and reaches
130GPa, 100 times more taller than best steel.
Graphene is equally a kind of excellent heat conductor, and its thermal conductivity factor is up to 5000W/ (m K), better than CNT,
Even more than some common metals, such as gold, silver, copper are high more than 10 times.
The preparation method of Graphene：Mechanical stripping method, epitaxial growth method, chemical vapour deposition technique, chemical synthesis, oxidation
Graphene reducing process and longitudinally cutting carbon tube method etc. are several.
Mechanical stripping method：Graphene is isolated from graphite using micromechanics stripping method, ultrasound peels off graphite in the liquid phase
It is the method for another conventional stripping graphite.
Epitaxial growth method：From carbide silicon chip（SiC）Surface utilizes high temperature（1200~1500°C）Distillation removal silicon is former
Son, so as to obtain the Graphene of epitaxial growth.
Chemical vapour deposition technique：Chemical vapour deposition technique refers to crack carbon source at high temperature（Such as hydrocarbon）And deposit
On solid substrate surface, substrate is usually the transition metal such as Ni, Ru.
Graphene oxide reducing process：At present using most extensively, being also most to be hopeful to take the lead in realizing the system of heavy industrialization
A kind of method of standby Graphene is to utilize graphene oxide for presoma, by thermal reduction or electronation, by graphite oxide
The oxy radical on alkene surface is removed.Although this method can not obtain perfect Graphene, can largely recover
The intrinsic performance of Graphene.Meanwhile, relative to other graphene preparation methods, the abundant raw material of graphene oxide reducing process, if
Standby and operating process is simple, and the machinability of the Graphene prepared is good, therefore receives much concern.
Graphene oxide reducing process includes thermal expansion reducing process, chemical reduction method again.
Longitudinally cutting carbon tube method：It is developed in recent years a kind of new with CNT as raw material prepares Graphene
The method for preparing Graphene, different from the isotropic graphite alkene lamella prepared as raw material with graphite, cutting carbon nanotubes are obtained
Be anisotropic banding Graphene.
The preparation method of Graphene can be prepared using any method known in the art in the present invention, this hair
The method of preferred redox graphene in bright.
Graphene oxide is a kind of derivative of Graphene, and C, H, O tri- is included with Graphene of the strong oxidizer after treated
Plant element.Similar to graphite, graphite oxide is similarly the active forces such as two-dimensional layered structure, the hydrogen bond that graphene oxide passes through interlayer
Stacked in multi-layers is together.But surface of graphene oxide contains substantial amounts of oxy radical, it is shown stronger hydrophily simultaneously
Can be thoroughly dispersed in water.
The preparation method of graphene oxide：The three kinds of methods for preparing graphite oxide commonly used at present, i.e. Brodie methods,
Staudenmaier methods and Hummers methods, are that graphite is processed using the combination of oxidation reinforced dose of strong acid.Strong protonic acid
Enter into graphite layers and form graphite intercalation compound（graphiteintercalationcompounds）, subsequent strong oxidizer
Oxidation is carried out to graphite and introduces a large amount of hydrophilic oxygen-containing functional groups to graphenic surface and edge formation graphene oxide.Due to containing
The stronger hydrophily of oxygen groups, graphene oxide can completely be peeled off and is dispersed in the middle of the aqueous solution.
In the present invention, the graphene oxide is powdered graphite through the product after chemical oxidation and stripping, graphene oxide
Be single atomic layer, some tens of pm can be expanded on lateral dimension at any time, therefore, the general chemistry of its construct trans and
The typical size of material science.Graphene oxide can be considered a kind of flexible material of non-traditional kenel, with polymer, colloid,
Film, and amphiphatic molecule characteristic.By after oxidation processes, graphite oxide still keeps the layer structure of graphite, but each
Many epoxide functional groups are introduced on the Graphene monolithic of layer.Graphene oxide is general to be obtained by graphite through strong acid oxidation.Mainly
There are three kinds of methods for preparing graphite oxide：Brodie methods, Staudenmaier methods and Hummers methods.The wherein system of Hummers methods
The ageing of standby process preferably and in preparation process also compares safety relatively, is one kind the most frequently used at present.It uses dense sulphur
After potassium permanganate in acid and the oxidized reaction of powdered graphite, obtain brown has derivative carboxylic acid group and in the plane at edge
The predominantly graphite flake of phenolic hydroxyl group and epoxide group, this graphene layers can be stirred vigorously stripping and be through ultrasound or high shear
Graphene oxide, and stabilization, the single-layer graphene oxide suspension of sundown are formed in water.Because conjugate network is subject to tight
The functionalization of weight, graphene oxide thin slice has the speciality of insulation.Partial reduction can be carried out through reduction treatment, chemical modification is obtained
Graphene platelet.At present, graphene oxide new method is prepared to have emerged in an endless stream, be generally divided into top-down approach and
The major class of Bottom-up approach two.The former thinking is to split crystalline flake graphite etc. to prepare graphene oxide, with changing for traditional three method
Enter method for representative, also including splitting（Break）Method of CNT etc..The latter is the method synthesized with various carbon sources, tool
Body method is multifarious, and species is various.
Graphene-ethylene octen polymers blend refers to the Graphene and ethylene octene polymerization that will be prepared in the present invention
Thing is blended, then the blending extrusion in extruding machine.In Graphene-ethylene octen polymers blend, the content of Graphene
Account for 15-40wt%.
Various additives can be contained within the scope without prejudice to the object of the present invention.
As the specific example of additive, phenol kind antioxidant, Phosphorus antioxidant, sulfur type antioxidant etc. can be enumerated various anti-
Oxygen agent；The various heat stabilizers such as hindered amines heat stabilizer；Benzophenones ultra-violet absorber, benzotriazole ultraviolet radiation absorption
The various ultra-violet absorbers such as agent, benzoate ultra-violet absorber；Non-ionic antistatic agent, cationic are antistatic
The various antistatic additive such as agent, anionic antistatic agent；Bisamide class dispersant, paraffin class dispersant, organic metal salt point
The various dispersants such as powder；The various chlorine scavengers such as the metal carboxylate chlorine scavengers of alkali salt；Acid amides series lubricant agent, paraffin
The various lubricants such as series lubricant agent, organic metal salt series lubricant agent, ester lubricant；Oxide-based distintegrant, hydrotalcite point
The various distintegrants such as solution agent；The various matal deactivators such as hydrazine matal deactivator, amine matal deactivator；Brominated organic is fire-retardant
The various fire retardants such as agent, phosphoric acid based flame retardant, antimony trioxide, magnesium hydroxide, red phosphorus；Talcum powder, mica, clay, calcium carbonate, hydrogen
Aluminum oxide, magnesium hydroxide, barium sulfate, glass fibre, carbon fiber, silicon materials, calcium silicates, potassium titanate, wollastonite etc. are various inorganic
Filler；Organic filler；Organic pigment；Inorganic pigment；Inorganic antiseptic；Organic antibacterial agent etc..
The preparation method of TPE infusion bags, comprises the following steps：
Weigh the SEBS of 100 weight portions, the hydroxyl SBS of 1-5 weight portions, the PP of 40~120 weight portions, 1-10 weight portions are filled out
It is oil-filled, the Graphene-LDPE blends of 0.1-10 weight portions, the antioxidant of 0.1~1 weight portion, 0.1-0.3 weight portions it is smooth
Agent, load weighted raw material is poured into high-speed mixer, well mixed by stirring at low speed and high-speed stirred；Mixing time is controlled
In 6-8min；
The raw material input storage bin hopper that will be mixed, through comminutor extrusion plastic silk, after purifying water cooling, is carried out through hair dryer
Drying, cleaved machine excision forming, are made infusion bag pellet；
Infusion bag pellet vacuum is drawn into heating cylinder, heated barrel nozzle feeding hot flow path note road cast gate, by hot flow path
Sprue bushing heats pulp consistence material；
Injection mold is sent into by hot runner nozzle, is molded, form preform；
Preform feeding blow mold is carried out blowing bag, gas blow molding is made infusion bag；Sent by unloading device
Go out infusion bag；Wherein, heating cylinder temperature, hot flow path temperature control blow bag air pressure control in 1.2- at 180-220 DEG C
1.5MPa；Operation air pressure control is in 0.7-0.9MPa.
High fondant-strength PP has more side chains, and TPE is greatly reduced in high temperature from high fondant-strength PP（121 take the photograph
Family name's degree）The generation of particulate matter during sterilization, the degree of cross linking of selection be 0 high fondant-strength PP in crosslinking agent, the work of active site
The infiltration of particulate matter can further be suppressed with lower formation three dimensional network structure.
The present invention is specifically described below by embodiment.Be necessary it is pointed out here that, following examples are only used
In the invention will be further described, it is impossible to be interpreted as limiting the scope of the invention, professional and technical personnel in the field
Some nonessential modifications and adaptations that content according to the invention described above is made, still fall within protection scope of the present invention.
In addition, if without other explanation, it is raw materials used be all it is commercially available, double screw extruder select LTE26/40 Switzerland
LABTECH equipment companies.
SEBS Kurarays 4033
SBS Ba Ling petrochemical industry/1401, linear structure.
PP Dushanzi A180TM
High melt strength, propylene South Korea Samsung TB12B
LLDPE is purchased in Daqing petrochemical DNDA8320, under 230 degrees Celsius, melt mass flow rate 20g/10min.
The XF001W single-layer graphenes of the first rich nanometer company of Graphene, the μ m thick 0.8-1.2nm individual layer rates of piece footpath 0.5 ~ 2
80%。
Graphene-LLDPE blends
The Graphene of the LLDPE of 100 weight portions and 30 weight portions is blended, then the blending extrusion in extruding machine, obtains graphite
Alkene ethylene octen polymers.
Hydroxyl SBS
In four-hole bottle, dissolved during the SBS of 5g is put into 50ml toluene solvants, by 50ml anhydrous formic acids and 5ml dioxygen moisture
It is not added drop-wise in reaction bulb slowly.In stirring reaction 2 hours at 40 DEG C, after reaction terminates, reaction solution is poured into methyl alcohol molten
Precipitated in liquid, filtering, methyl alcohol is repeatedly washed, and by gained floccule in constant weight is being dried under vacuum at 41 DEG C, obtains final product hydroxyl
SBS.The hydroxyl value for obtaining hydroxyl SBS after tested is 43mgKOH/g
Embodiment 1
Formula：The SEBS of 100 weight portions, the hydroxyl SBS of 3 weight portions, the PP of 80 weight portions, the filling oil of 60 weight portions is high
The weight portion of Melt strength polypropylene 10, the Graphene-LDPE blends of 5 weight portions, the antioxidant of 0.5 weight portion, 0.2 weight portion
Slipping agent.
Load weighted raw material is poured into high-speed mixer, it is well mixed by stirring at low speed and high-speed stirred；During stirring
Between control in 6-8min；
The raw material input storage bin hopper that will be mixed, through comminutor extrusion plastic silk, after purifying water cooling, is carried out through hair dryer
Drying, cleaved machine excision forming, are made infusion bag pellet；
Infusion bag pellet vacuum is drawn into heating cylinder, heated barrel nozzle feeding hot flow path note road cast gate, by hot flow path
Sprue bushing heats pulp consistence material；
Injection mold is sent into by hot runner nozzle, is molded, form preform；
Preform feeding blow mold is carried out blowing bag, gas blow molding is made infusion bag；Sent by unloading device
Go out infusion bag；Wherein, heating cylinder temperature, hot flow path temperature control blow bag air pressure control in 1.2- at 180-220 DEG C
1.5MPa；Operation air pressure control is in 0.7-0.9MPa.
Embodiment 2
Formula：The SEBS of 100 weight portions, hydroxyl SBS, the PP of 80 weight portions of 2 weight portions, the filling oil of 8 weight portions, Gao Rong
The weight portion of body strength polypropylene 10, the Graphene-LDPE blends of 8 weight portions, the antioxidant of 0.5 weight portion, 0.2 weight portion
Slipping agent, granulates according to the method for embodiment 1, and injection, blow molding obtains TPE infusion bags.
Embodiment 3
Formula：The SEBS of 100 weight portions, hydroxyl SBS, the PP of 80 weight portions of 3 weight portions, the filling oil of 8 weight portions, Gao Rong
The weight portion of body strength polypropylene 30, the Graphene-LDPE blends of 8 weight portions, the antioxidant of 0.5 weight portion, 0.2 weight portion
Slipping agent, granulates according to the method for embodiment 1, and injection, blow molding obtains TPE infusion bags.
Comparative example 1
Formula：The SEBS of 100 weight portions, the PP of 80 weight portions, the filling oil of 8 weight portions, the weight of high melt strength, propylene 10
Part, the Graphene-LDPE blends of 8 weight portions, the antioxidant of 0.5 weight portion, the slipping agent of 0.2 weight portion.
Comparative example 2
Formula：The SEBS of 100 weight portions, hydroxyl SBS, the PP of 90 weight portions of 2 weight portions, the filling oil of 8 weight portions, 8 weights
Measure the Graphene-LDPE blends of part, the antioxidant of 0.5 weight portion, the slipping agent of 0.2 weight portion.
Comparative example 3
Formula：The SEBS of 100 weight portions, hydroxyl SBS, the PP of 80 weight portions of 2 weight portions, the filling oil of 8 weight portions, Gao Rong
The weight portion of body strength polypropylene 10, the antioxidant of 0.5 weight portion, the slipping agent of 0.2 weight portion.
Method of testing：
Infusion bag makes long as 30mm, and 20mm is wide, the sample of thick 10mm, in high pressure steam sterilization（121 degrees Celsius）15 minutes
Afterwards, take out and be directly placed into sample bottle, add 100ml water, measured after standing 6 hours.It is insoluble using light blockage method ZWJ-20A types
Particle diameter quantity of the particulate instrument analysis wherein more than 5 microns, and calculate every milliliter of particle number.
Foregoing example is merely illustrative, some features of the feature for explaining the disclosure.Appended claim is intended to
It is required that the scope as wide as possible being contemplated that, and embodiments as presented herein is only the group according to all possible embodiment
The explanation of the implementation method of the selection of conjunction.Therefore, the purpose of applicant is that appended claim is not illustrated spy of the invention
The selectional restriction of the example levied.And the progress in science and technology by formed language performance it is inaccurate due to and not by mesh
The possible equivalent or son of preceding consideration are replaced, and these changes should also be interpreted by appended right in the conceived case
It is required that covering.
Claims (10)
1. a kind of TPE infusion bags, it is characterised in that the TPE infusion bags are prepared from by the raw material of formula as below：
SEBS100 weight portions；
Hydroxyl SBS1-5 weight portions；
PP40~120 weight portion；
Oily 1~10 weight portion of filling；
Graphene-LDPE blend 0.1-10 weight portions；
The weight portion of antioxidant 0.1~1；
Slipping agent 0.1-0.3 weight portions.
2. TPE infusion bags according to claim 1, it is characterised in that the PP is that isotactic polypropylene, high fondant-strength gather
The mixture of propylene.
3. TPE infusion bags according to claim 1, it is characterised in that the isotactic polypropylene is in 230 DEG C/2.16kg bars
Under part, melt flow rate (MFR) is 5-30g/10min.
4. TPE infusion bags according to claim 1, it is characterised in that the high melt strength, propylene 230 DEG C/
Under the conditions of 2.16kg, melt flow rate (MFR) is 0.1-1g/10min.
5. TPE infusion bags according to claim 1, it is characterised in that the isotactic polypropylene and high fondant-strength poly- third
The mass ratio of alkene is 1：0.1-0.5.
6. TPE infusion bags according to claim 1, it is characterised in that the hydroxyl value of the hydroxyl SBS is 10-
50mgKOH/g。
7. TPE infusion bags according to claim 1, it is characterised in that the preparation method of the hydroxyl SBS is：
Dissolved during SBS is put into toluene solvant, anhydrous formic acid and hydrogen peroxide are slowly added drop-wise in reaction bulb respectively.In
Stirring reaction at 40 DEG C~80 DEG C, after reaction terminates, reaction solution is poured into methanol solution and is precipitated, and filtering, methyl alcohol is repeatedly washed,
By gained floccule in constant weight is being dried under vacuum at 40-50 DEG C, hydroxyl SBS is obtained final product.
8. TPE infusion bags according to claim 1, it is characterised in that the filling grease separation is from aromatics mineral oil, cycloalkanes
Any one in class mineral oil or paraffin class mineral oil.
9. TPE infusion bags according to claim 1, it is characterised in that in the Graphene-polyolefin blends, graphite
The content of alkene accounts for 15-40wt%.
10. a kind of preparation method of TPE infusion bags, comprises the following steps：
Weigh the SEBS of 100 weight portions, the hydroxyl SBS of 1-5 weight portions, the PP of 40~120 weight portions, 1-10 weight portions are filled out
It is oil-filled, the Graphene-LDPE blends of 0.1-10 weight portions, the antioxidant of 0.1~1 weight portion, 0.1-0.3 weight portions it is smooth
Agent, load weighted raw material is poured into high-speed mixer, well mixed by stirring at low speed and high-speed stirred；Mixing time is controlled
In 6-8min；
The raw material input storage bin hopper that will be mixed, through comminutor extrusion plastic silk, after purifying water cooling, is carried out through hair dryer
Drying, cleaved machine excision forming, are made infusion bag pellet；
Infusion bag pellet vacuum is drawn into heating cylinder, heated barrel nozzle feeding hot flow path note road cast gate, by hot flow path
Sprue bushing heats pulp consistence material；
Injection mold is sent into by hot runner nozzle, is molded, form preform；
Preform feeding blow mold is carried out blowing bag, gas blow molding is made infusion bag；Sent by unloading device
Go out infusion bag；Wherein, heating cylinder temperature, hot flow path temperature control blow bag air pressure control in 1.2- at 180-220 DEG C
1.5MPa；Operation air pressure control is in 0.7-0.9MPa.
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| CN201710261784.7A CN106916406A (en) | 2017-04-20 | 2017-04-20 | A kind of TPE infusion bags and preparation method thereof |
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Cited By (2)
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| CN108690312A (en) * | 2018-05-31 | 2018-10-23 | 深圳市普特美橡塑原料有限公司 | A kind of preparation method of TPE material for medical transfusion bag |
| CN111117140A (en) * | 2019-12-28 | 2020-05-08 | 会通新材料股份有限公司 | Modified SEBS composite material for automobile injection molding interior trim and preparation method thereof |
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| CN111117140A (en) * | 2019-12-28 | 2020-05-08 | 会通新材料股份有限公司 | Modified SEBS composite material for automobile injection molding interior trim and preparation method thereof |
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