CN105367896A - TPE pulling force pipe material and preparation method thereof - Google Patents

TPE pulling force pipe material and preparation method thereof Download PDF

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Publication number
CN105367896A
CN105367896A CN201510795303.1A CN201510795303A CN105367896A CN 105367896 A CN105367896 A CN 105367896A CN 201510795303 A CN201510795303 A CN 201510795303A CN 105367896 A CN105367896 A CN 105367896A
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CN
China
Prior art keywords
tpe
pulling force
vinyl pyridine
sebs
force materials
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CN201510795303.1A
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Chinese (zh)
Inventor
葛军
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ANHUI XIONGYA PLASTIC TECHNOLOGY Co Ltd
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ANHUI XIONGYA PLASTIC TECHNOLOGY Co Ltd
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Priority to CN201510795303.1A priority Critical patent/CN105367896A/en
Publication of CN105367896A publication Critical patent/CN105367896A/en
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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
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/18—Applications used for pipes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—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
    • 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention discloses a TPE pulling force pipe material and a preparation method thereof, the TPE pulling force pipe material comprises SEBS, PP, vinylpyridine grafted SEBS, POE and white oil; and the preparation method is as follows: according to the weight ratio, weighing the raw materials, fully uniformly mixing the SEBS, the PP, the vinylpyridine grafted SEBS, the POE and the white oil in a high speed mixer to obtain a mixture; and putting the obtained mixture in a screw extruder for extrusion granulation. The TPE pulling force pipe material has high flexibility, high strength and good weathering resistance, and is suitable for the preparation of fitness equipment.

Description

A kind of TPE pulling force materials in the tube and preparation method thereof
Technical field
The present invention relates to technical field of polymer materials, more specifically, the present invention relates to a kind of TPE pulling force materials in the tube and preparation method thereof.
Background technology
Along with the growth in the living standard of people, the life of people is more and more come in body-building, body-building apparatus is also more and more microminiaturized, miniaturization, capstan can use in outdoor, indoor, is convenient for carrying, effectively improve physical performance, mould perfect body curvature, therefore, become one of favorite athletic sports appliance of people.Material mainly natural emulsion or the synthetic latex of the capstan that Vehicles Collected from Market is sold.Latex material has the functions such as good elasticity, ventilation property and anti-acarid, at present, they are mostly is for the manufacture of products such as mattress, pillow, boudoir, waist pillow, cushion sponge, balloon, gloves, but capstan is different from these products, capstan needs constantly to be stretched in the process used, after using for some time, easily will there is the problems such as distortion, breakage, xanthochromia in capstan, affect the normal use of capstan, therefore, latex material can not meet the performance requirement of capstan.
Thermoplastic elastomer TPE is a kind of snappiness, high strength, high resilience with rubber, and having again can the material of injection molding feature.TPE has environment-protecting asepsis safety, durometer level is wide, has excellent tint permanence, soft-touch, weathering resistance, fatigue resistance and temperature tolerance, processing characteristics is superior, need not the plurality of advantages such as sulfuration, therefore, as a kind of novel multifunctional environment friendly material, TPE has boundless application market, as household electrical appliance, sports goods, automotive material, medicine equipment, construction industry and shoe industry etc.At present, TPE material generally with thermoplastic elastomer hydrogenated styrene-butadiene-styrene block copolymers (SEBS), thermoplastics polypropylene and some suitable fillers be raw material preparation obtain.The hydrogenation completely of SEBS elastomer block, makes it have excellent weather resistance, has good tolerance, also make it have resistance to low temperature to ozone, ultraviolet, electric arc, still keeps the features such as good snappiness under-60 DEG C of conditions.Although SEBS has excellent caoutchouc elasticity, excellent weathering resistance, lower temperature resistance, environmental-protecting performance etc., but be separately with there are some problems using SEBS as elastomer material, if SEBS is compared with traditional vulcanized rubber, there is the shortcomings such as rigidity is excessive, compression set is large, density is high; Its use temperature upper limit and the aspect such as solvent resistance, oil-proofness are usually all not as good as conventional vulcanized rubbers etc.In addition, PP is cheap, can reduce the cost of SEBS.
When TPE uses as pulling force materials in the tube, requirement has good elasticity, intensity, weathering resistance and environmental-protecting performance, also needs to reduce production cost, therefore simultaneously, be starved of the improvement by formula and production technique, develop the TPE pulling force materials in the tube of a kind of strong mechanical performance and environmental protection.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of pulling force materials in the tube with snappiness, high strength, good weatherability, is applicable to the preparation of body-building apparatus.
In order to solve the problem, the invention provides a kind of TPE pulling force materials in the tube and preparation method thereof.
In order to realize foregoing invention object, this invention takes following technical scheme:
A kind of TPE pulling force materials in the tube, described TPE pulling force materials in the tube are prepared from by the raw material comprising following weight part:
SEBS45-55 part
PP65-80 part
Vinyl pyridine Maleated SEBS 10-20 part
POE1-13 part
White oil 45-75 part.
In one embodiment, described SEBS is powdery, hydrogenation degree > 95%.
In one embodiment, in described vinyl pyridine Maleated SEBS, vinyl pyridine chemical structural formula is selected from or , wherein, R is H, CH 3, C 2h 5.
In one embodiment, described vinyl pyridine chemical structural formula is , R is CH 3.
In one embodiment, in described vinyl pyridine Maleated SEBS, vinyl pyridine percentage of grafting is 0.1%-5%.
In one embodiment, in described vinyl pyridine Maleated SEBS, vinyl pyridine percentage of grafting is 3%.
In one embodiment, described vinyl pyridine Maleated SEBS and POE weight part ratio are 2:1.
In one embodiment, described PP is homo-polypropylene, and melting index is 8.6.
In one embodiment, described TPE pull strip material also comprises the calcium carbonate of 5-10 weight part.
The present invention provides the method preparing TPE pulling force materials in the tube on the other hand, comprises the following steps:
(1) raw material is taken by following weight:
SEBS45-55 part
PP65-80 part
Vinyl pyridine Maleated SEBS 10-20 part
POE1-13 part
White oil 45-75 part, fully mixes, obtains mixture in high speed mixer;
(2) mixture obtained in step (1) is added length-to-diameter ratio is 45:1, basal temperature is 180-230 DEG C, rotating speed is melting mixing in the twin screw extruder of 350-450rpm, then extruded by head, tie rod, after air-cooled, pelletizing and drying, obtain the finished product.
Relative to prior art, the application passes through optimization of C/C composites, by SEBS, PP, vinyl pyridine Maleated SEBS, POE, white oil mixes uniformly according to appropriate weight part ratio, the TPE pulling force materials in the tube finally obtained are made not only to have satisfactory stability performance, and there is snappiness, high strength, weather resistance is good, the features such as good hand touch and very easily machine-shaping, therefore the capstan using it to prepare also has snappiness intensity, weather resistance is good, the features such as good hand touch, and the change of weather also can not impact its use properties, the demand of people to capstan body-building apparatus can be met.
Be easier to understand the above-mentioned of the application and other features, aspect and advantage with reference to following detailed description.
Embodiment
Unless otherwise defined, all technology used herein and scientific terminology have the identical implication usually understood with one skilled in the art of the present invention.When there is contradiction, be as the criterion with the definition in this specification sheets.
Term as used herein " by ... preparation " and " comprising " synonym.Term used herein " comprises ", " comprising ", " having ", " containing " or its other distortion any, be intended to cover the comprising of non-exclusionism.Such as, comprise the composition of listed elements, step, method, goods or device and need not be only limitted to those key elements, but other key element of clearly not listing or the intrinsic key element of this kind of composition, step, method, goods or device can be comprised.
Conjunction " by ... composition " get rid of any key element, step or the component do not pointed out.If in claim, this phrase will make claim be closed, make it not comprise material except those materials described, but except relative customary impurities.When phrase " by ... composition " to appear in the clause of claim main body instead of immediately preceding after theme time, it is only limited to the key element described in this clause; Other key element is not excluded outside described claim as a whole.
During the Range Representation that equivalent, concentration or other value or parameter limit with scope, preferable range or a series of upper limit preferred value and lower preferable values, this is appreciated that all scopes specifically disclosing and formed by arbitrary pairing of any range limit or preferred value and any range lower limit or preferred value, no matter and whether this scope separately discloses.Such as, when disclosing scope " 1 to 5 ", described scope should be interpreted as comprising scope " 1 to 4 ", " 1 to 3 ", " 1-2 ", " 1-2 and 4-5 ", " 1-3 and 5 " etc.When numerical range is described in this article, unless otherwise indicated, otherwise this scope intention comprises its end value and all integers within the scope of this and mark.
In addition, the indefinite article " one " before key element of the present invention or component and " one " are to quantitative requirement (i.e. occurrence number) unrestriction of key element or component.Therefore " one " or " one " should be read as and comprise one or at least one, and the key element of singulative or component also comprise plural form, unless the obvious purport of described quantity refers to singulative.
In order to solve the problem, the invention provides a kind of TPE pulling force materials in the tube, described TPE pulling force materials in the tube are prepared from by the raw material comprising following weight part:
SEBS45-55 part
PP65-80 part
Vinyl pyridine Maleated SEBS 10-20 part
POE1-13 part
White oil 45-75 part.
SEBS
The term " SEBS " used in the application refers to polystyrene to be end segment, and the ethylene-butene copolymer obtained with polyhutadiene hydrogenation is the linear three block copolymer of middle spring block.The fundamental property of the SEBS of three block configuration is characterized as: one, and molecular chain forms higher than the hard plastic shape polystyrene section of room temperature is mutually embedding due to soft elastic polyhutadiene section and the second-order transition temperature of second-order transition temperature lower than room temperature; Its two, these two kinds of blocks are that thermodynamics is inconsistent, and being separated with microscopic dimensions forms " island structure " of two-phase laminated flow.When polystyrene content is lower, polystyrene is divided into isolated region, is around the polyhutadiene external phase of rubber.Due to the existence of plastics phase, the motion of rubber molecule segment is subject to certain restrictions, makes thermoplastic elastomer have the performance of vulcanized rubber.Difference is, the crosslinked of plastics phase is reversible physical crosslinking, and when it is dissolved in organic solvent or heating and melting, namely plastics are dissolved or melting mutually, lose crosslinked action; And after solvent evaporates or melt cooling, plastics mutually again can precipitation separation out, and recover original physical crosslinking state.The hydrogenation completely of SEBS elastomer block, makes it have excellent weather resistance, has good tolerance, also make it have resistance to low temperature to ozone, ultraviolet, electric arc, still keeps the features such as good snappiness under-60 DEG C of conditions; Thus, make SEBS have excellent caoutchouc elasticity, excellent weathering resistance, lower temperature resistance, environmental-protecting performance etc.Preferably, the SEBS in the application is powdery, hydrogenation degree > 95%.
PP
In this application, described PP is acrylic resin, and it comprises at least one in homo-polypropylene, Co-polypropylene and atactic copolymerized polypropene.Adding of acrylic resin can be that the molecular chain of SEBS rubber resin is more soft, thus increases the elasticity of product, makes it have soft feel and mechanics use properties.In addition, polypropylene also has very strong resistibility to chemical erosion, thus improves the chemical resistance method corrodibility of SEBS thermoplastic elastomer.PP is cheap, can reduce the use cost of SEBS.The applicant is in process of the test, and homo-polypropylene is relative to Co-polypropylene and Atactic Polypropelene, and homo-polypropylene and vinyl pyridine Maleated SEBS have better consistency, and mechanical property is more excellent.As a kind of preferred implementation of the present invention, described PP is homo-polypropylene, and melting index is 8.6.
vinyl pyridine Maleated SEBS
The term " vinyl pyridine Maleated SEBS " used in the application refers to that vinyl pyridine is as SEBS grafting reactant, makes SEBS become polarity S EBS.Because SEBS is nonpolar thermoplastic elastic material, in SEBS molecular chain, introduce polar functional group, its functionalization can be made, improve the avidity between SEBS and polar polymer and consistency, the range of application of SEBS can be expanded.In addition, compared with pure SEBS, the SEBS introducing polar functional group has better tensile strength, has good avidity and consistency with polymkeric substance.Polar functional group described in the application common are, can illustrate, as 2-vinyl pyridine, 4-vinylpridine and isomer thereof, maleic anhydride, methyl methacrylate, β-dimethyl-aminoethylmethacrylate, propyl methacrylate, pentylmethacrylate, N-Hexyl methacrylate, methacrylic heptyl heptylate, Octyl methacrylate and its isomer.The graft modification of traditional SEBS adopts solution graft copolymerization and fusion-grafting two kinds of methods usually.Wherein, when solution grafting carries out SEBS grafted polar functional group, the graft reaction time is long, and grafting efficiency is low, needs to consume poisonous, flammable solvent in a large number, and production cost is high, large to human injury, contaminate environment, takes up an area large, is difficult to realize continuous operation; Melt grafting is relative to the good environmental protection of solution grafting, but its grafting efficiency is not high yet.The graft modification of current SEBS, mainly by adding with butyllithium equimolar generation cap reagent in SEBS glue in process of production, prepares polar functional group Maleated SEBS copolymerized product, i.e. polarity S EBS adding polar functional group.By described method, operation is simple, and grafting efficiency improves, environmental protection.As a kind of preferred implementation of the present invention, in described vinyl pyridine Maleated SEBS, vinyl pyridine chemical structural formula is selected from or , wherein, R is H, CH 3, C 2h 5.
As a kind of preferred implementation of the present invention, described vinyl pyridine chemical structural formula is , R is CH 3.
In this application, applicant finds when there is not pure SEBS in co-mixing system, when weight part along with vinyl pyridine Maleated SEBS has exceeded 20 parts, tensile strength in co-mixing system, flexural strength and modulus in flexure all progressively decline, reason is the intensity of the intensity of vinyl pyridine Maleated SEBS lower than matrix PP resin, because vinyl pyridine Maleated SEBS modulus is far below PP matrix in co-mixing system, when being subject to External Force Acting, mainly by matrix bearing stress, therefore in co-mixing system, pure SEBS and PP need be added jointly as the matrix in co-mixing system, the mechanical properties such as the better stretching of acquisition is slight.As one preferred embodiment, the weight part of described SEBS is 45-50.
POE
POE rubber belongs to polyolefin elastomer, and it is made up of octene and polyolefin resin, has the general physical property of thermoplastic elastomer, as formability, waste material recycling and cured properties.In addition, it also has good resistance toheat, winter hardiness is excellent, and use range is broad, and weathering resistance, ageing resistance are good.The modified toughened of PP, PA and PE can be applied, also may be used for the use of the higher product of some resistance to environmental requirements, or, also for industrial goods as sebific duct, conveying belt, adhesive plaster and pressing and medicine equipment and household electrical appliance, problem articles for use, toy etc., and packaging film etc.Find in applicant, POE and vinyl pyridine Maleated SEBS act synergistically and play toughness reinforcing effect in co-mixing system.In order to obtain more useful effect, as a kind of preferred implementation of the present invention, described vinyl pyridine Maleated SEBS and POE weight part ratio are 2:1.
white oil
The term " white oil " used in the application is by the mixture of oil gained refining liquid hydrocarbon, is mainly saturated naphthenic hydrocarbon and alkane mixture, and crude oil is through normal pressure and vacuum fractionation, solvent extraction and dewaxing, hydrofining and obtaining.White oil, mainly as lubricant, improves consistency heterogeneous in matrix material.The consistency of white oil and SEBS resin is good, effectively can improve the interaction between SEBS rubber resin molecular chain, put forward high molecular mutual locomotivity, finally improve the mobility of sizing material, and improve elasticity and the workability of the final SEBS thermoplastic elastomer obtained.In addition, the physicals of white oil to SEBS thermoplastic elastomer does not have detrimentally affect, and environment friendly and pollution-free, also has the stability of good light and heat.
calcium carbonate
Calcium carbonate described in the application is one of common in the art filler.After having dosed nano-calcium carbonate grain in the applicant's discovery system, tensile strength and the bending elastic modulus of co-mixing system are all improved, this is because the melt viscosity making to meet material that adds of Nano particles of calcium carbonate increases, the dispersion of elastomerics SEBS is played to the effect of shearing refinement, homogenizing, thus play the effect of coordination plasticizing.The particle diameter of the calcium carbonate in application itself is 20-60nm, and preferably, the particle diameter of calcium carbonate is 30nm.As a kind of preferred implementation of the present invention, described TPE pull strip material also comprises the calcium carbonate of 5-10 weight part.
other:
Various additive can be contained within the scope without prejudice to the object of the present invention.
As the object lesson of additive, the various oxidation inhibitor such as phenol oxidation inhibitor, Phosphorus oxidation inhibitor, sulfur type antioxidant can be enumerated; The various thermo-stabilizers such as hindered amines thermo-stabilizer; The various UV light absorber such as Benzophenones UV light absorber, Benzotriazole Ultraviolet Stabilizer, benzoate UV light absorber; The various static inhibitor such as non-ionic antistatic agent, cationic antistatic agent, anionic antistatic agent; The various dispersion agents such as bisamide class dispersion agent, paraffin class dispersion agent, organo-metallic salt dispersion agent; The various chlorine scavenger such as the metal carboxylate chlorine scavenger of alkaline earth salt; The various lubricants such as amides lubricant, paraffin class lubricant, organic metal salt series lubricant agent, ester lubricant; The various decomposition agents such as oxide-based decomposition agent, hydrotalcite decomposition agent; The various metal passivators such as hydrazine metalloid passivator, amine metal passivator; The various fire retardants such as brominated organic fire retardant, phosphoric acid based flame retardant, ANTIMONY TRIOXIDE SB 203 99.8 PCT, magnesium hydroxide, red phosphorus; The various inorganic fillers such as talcum powder, mica, clay, aluminium hydroxide, magnesium hydroxide, barium sulfate, glass fibre, carbon fiber, silicon-dioxide, Calucium Silicate powder, potassium titanate, wollastonite; Organic filler; Pigment dyestuff; Mineral dye; Inorganic antiseptic; Organic antibacterial agent etc.
As a kind of preferred implementation of the present invention, in described vinyl pyridine Maleated SEBS, vinyl pyridine percentage of grafting is 0.1%-5%.
In order to make co-mixing system have better tensile strength and toughness, as a kind of preferred implementation of the present invention, in described vinyl pyridine Maleated SEBS, vinyl pyridine percentage of grafting is 2.3-3.5%, and preferably, vinyl pyridine percentage of grafting is 3%.
The present invention provides the method preparing TPE pulling force materials in the tube on the other hand, comprises the following steps:
(1) raw material is taken by following weight:
SEBS45-55 part
PP65-80 part
Vinyl pyridine Maleated SEBS 10-20 part
POE1-13 part
White oil 45-75 part, fully mixes, obtains mixture in high speed mixer;
(2) mixture obtained in step (1) is added length-to-diameter ratio is 45:1, basal temperature is 180-230 DEG C, rotating speed is melting mixing in the twin screw extruder of 350-450rpm, then extruded by head, tie rod, after air-cooled, pelletizing and drying, obtain the finished product.
Embodiment:
Embodiment 1, TPE pulling force materials in the tube, described TPE pulling force materials in the tube are prepared from by the raw material comprising following weight part:
SEBS45-55 part
PP65-80 part
Vinyl pyridine Maleated SEBS 10-20 part
POE1-13 part
White oil 45-75 part.
Embodiment 2, identical with embodiment 1, different places is, described SEBS is powdery, hydrogenation degree > 95%.
Embodiment 3, identical with embodiment 1, different places is, in described vinyl pyridine Maleated SEBS, vinyl pyridine chemical structural formula is selected from or , wherein, R is H, CH 3, C 2h 5.
Embodiment 4, identical with embodiment 1, different places is, described vinyl pyridine chemical structural formula is , R is CH 3.
Embodiment 5, identical with embodiment 1, different places is, in described vinyl pyridine Maleated SEBS, vinyl pyridine percentage of grafting is 0.1%-5%.
Embodiment 6, identical with embodiment 1, different places is, in described vinyl pyridine Maleated SEBS, vinyl pyridine percentage of grafting is 3%.
Embodiment 7, identical with embodiment 1, different places is, described vinyl pyridine Maleated SEBS and POE weight part ratio are 2:1.
Embodiment 8, identical with embodiment 1, different places is, described PP is homo-polypropylene, and melting index is 8.6.
Embodiment 9, identical with embodiment 1, different places is, described TPE pull strip material also comprises the calcium carbonate of 5-10 weight part.
Embodiment 10, prepare the method for TPE pulling force materials in the tube, comprise the following steps:
(1) raw material is taken by following weight:
SEBS45-55 part
PP65-80 part
Vinyl pyridine Maleated SEBS 10-20 part
POE1-13 part
White oil 45-75 part, fully mixes, obtains mixture in high speed mixer;
(2) mixture obtained in step (1) is added length-to-diameter ratio is 45:1, basal temperature is 180-230 DEG C, rotating speed is melting mixing in the twin screw extruder of 350-450rpm, then extruded by head, tie rod, after air-cooled, pelletizing and drying, obtain the finished product.
Below by embodiment, the present invention is specifically described.What be necessary to herein means out is; following examples are only for the invention will be further described; limiting the scope of the invention can not be interpreted as; some nonessential improvement and adjustment that the professional and technical personnel in this field makes according to the content of foregoing invention, still belong to protection scope of the present invention.
In addition, if do not have other to illustrate, raw materials used is all commercially available, and following material component used is weight part.
A1：SEBS
B1:PP(homo-polypropylene, MI is 8.6)
C1: (vinyl pyridine used is vinyl pyridine Maleated SEBS , R is H; Vinyl pyridine percentage of grafting is 0.1%)
C2: (vinyl pyridine used is vinyl pyridine Maleated SEBS , R is H; Vinyl pyridine percentage of grafting is 2.3%)
C3: (vinyl pyridine used is vinyl pyridine Maleated SEBS , R is CH 3; Vinyl pyridine percentage of grafting is 3%)
C4: (vinyl pyridine used is vinyl pyridine Maleated SEBS , R is CH 3; Vinyl pyridine percentage of grafting is 3.5%)
C5: (vinyl pyridine used is vinyl pyridine Maleated SEBS , R is H; Vinyl pyridine percentage of grafting is 5%)
D1：POE
E1: white oil
F1: calcium carbonate
Embodiment 1-13 and comparative example 1-3:
TPE pulling force materials in the tube are prepared, preparation method's following (consumption of following component is parts by weight) according to the formula in table 1:
(1) raw material is taken by following weight: SEBS, PP, vinyl pyridine Maleated SEBS, POE, white oil, fully mix, obtain mixture in high speed mixer;
(2) mixture obtained in step (1) is added length-to-diameter ratio is 45:1, basal temperature is 180-230 DEG C, rotating speed is melting mixing in the twin screw extruder of 350-450rpm, then extruded by head, tie rod, after air-cooled, pelletizing and drying, obtain the finished product.
The composition of raw materials that table 1 is preparation TPE pulling force materials in the tube and consumption (parts by weight)
Testing method:
Mechanics Performance Testing:
By TPE pulling force materials in the tube injection moulding sample preparation on the injection moulding machine of 80T of drying, in sample making course, keep mould temperature between 75-100 DEG C.Tensile strength is tested by ASTMD-638 standard, and batten size (mm): 165(is long) × 19(end portion width) × 3.05(thickness), draw speed is 50mm/min; Rebound performance: test according to JISK6251 standard, by made batten repeated stretching 100 times, tensile elongation is five times of former state, and calculates its longitudinal absolute deformation amount and assess.Gained test result is in table 2.
Table 2 is TPE pulling force materials in the tube test results
As can be seen from Table 2, with do not add vinyl pyridine Maleated SEBS and compare with the product of POE, TPE pulling force materials in the tube of the present invention have better tensile strength and screen resilience, meanwhile, it can also reclaim reprocessing, environmental-protecting performance is superior, therefore, provides Advantageous Effects of the present invention.
Aforesaid example is only illustrative, for explaining some features of feature of the present invention.Appended claim is intended to the scope wide as far as possible that requirement it is contemplated that, and the embodiment presented herein is only the explanation of the embodiment of the selection of combination according to all possible embodiment.Therefore, the purpose of applicant is the selectional restriction that appended claim is not illustrated the example of feature of the present invention.And progress in science and technology is not replaced to be formed due to the inaccurate reason of language performance by the possible equivalent considered at present or son, and these changes also should be interpreted as being covered by appended claim in the conceived case.

Claims (10)

1. TPE pulling force materials in the tube, is characterized in that, described TPE pulling force materials in the tube are prepared from by the raw material comprising following weight part:
SEBS45-55 part
PP65-80 part
Vinyl pyridine Maleated SEBS 10-20 part
POE1-13 part
White oil 45-75 part.
2. TPE pulling force materials in the tube according to claim 1, is characterized in that, described SEBS is powdery, hydrogenation degree > 95%.
3. TPE pulling force materials in the tube according to claim 1, is characterized in that, in described vinyl pyridine Maleated SEBS, vinyl pyridine chemical structural formula is selected from or , wherein, R is H, CH 3, C 2h 5.
4. TPE pulling force materials in the tube according to claim 3, is characterized in that, described vinyl pyridine chemical structural formula is , R is CH 3.
5. TPE pulling force materials in the tube according to claim 1, is characterized in that, in described vinyl pyridine Maleated SEBS, vinyl pyridine percentage of grafting is 0.1%-5%.
6. TPE pulling force materials in the tube according to claim 5, is characterized in that, in described vinyl pyridine Maleated SEBS, vinyl pyridine percentage of grafting is 3%.
7. TPE pulling force materials in the tube according to claim 1, is characterized in that, described vinyl pyridine Maleated SEBS and POE weight part ratio are 2:1.
8. TPE pulling force materials in the tube according to claim 1, is characterized in that, described PP is homo-polypropylene, and melting index is 8.6.
9. TPE pulling force materials in the tube according to claim 1, is characterized in that, described TPE pull strip material also comprises the calcium carbonate of 5-10 weight part.
10. prepare the method for the TPE pulling force materials in the tube described in any one of claim 1 ~ 9, it is characterized in that, comprise the following steps:
(1) raw material is taken by following weight:
SEBS45-55 part
PP65-80 part
Vinyl pyridine Maleated SEBS 10-20 part
POE1-13 part
White oil 45-75 part, fully mixes, obtains mixture in high speed mixer;
(2) mixture obtained in step (1) is added length-to-diameter ratio is 45:1, basal temperature is 180-230 DEG C, rotating speed is melting mixing in the twin screw extruder of 350-450rpm, then extruded by head, tie rod, after air-cooled, pelletizing and drying, obtain the finished product.
CN201510795303.1A 2015-11-18 2015-11-18 TPE pulling force pipe material and preparation method thereof Pending CN105367896A (en)

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Application publication date: 20160302