CN101381490A - Thermoplastic elastomer, preparation method and use thereof - Google Patents
Thermoplastic elastomer, preparation method and use thereof Download PDFInfo
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- CN101381490A CN101381490A CNA2007100457394A CN200710045739A CN101381490A CN 101381490 A CN101381490 A CN 101381490A CN A2007100457394 A CNA2007100457394 A CN A2007100457394A CN 200710045739 A CN200710045739 A CN 200710045739A CN 101381490 A CN101381490 A CN 101381490A
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- thermoplastic elastomer
- polypropylene
- vinylation
- hydrogenated
- hydrogenated styrene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/918—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling
- B29C48/9185—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling in the direction of the stream of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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
- B29C48/92—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
- B29C2948/92704—Temperature
-
- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
Abstract
The invention relates to a thermoplastic elastomer, which comprises the following compositions by gross weight percentage: A. 5 to 85 percent of polypropylene; B. 5 to 90 percent of vinylated styrene hydrogen/ conjugated diolefine segmented copolymer; and C. 5 to 90 percent of polyolefin thermoplastic elastomer. The preparation method is to physically mix mixture of various compositions for manufacturing transparent coating materials and so on. The thermoplastic elastomer has the advantages that the thermoplastic elastomer has good transparency, does not contain plasticizer such as processing oil and so on, so that emigration of the thermoplastic elastomer during the use process is avoided, thereby guaranteeing the absolute safety of the thermoplastic elastomer when applied to products such as foodpack, medical appliances and so on; the product is soft; the shore A rigidity is between 0 and 95; the flow rate of fused masses is between 0.1 and 100 grams per 10 minutes; and the thermoplastic elastomer has good weathering resistance, chemical resistance and solvent resistance.
Description
Technical field
The present invention relates to polymeric material field, relate in particular to a kind of thermoplastic elastomer and its production and use.
Background technology
Traditional thermoplastic elastomer comprises material PVC blend, TPU etc., and its safety issue in use more and more is the principal focal point of paying close attention to, especially for food product pack, electric wire coating material, electron device, toy etc. require all the more so.The PVC blend because it needs to add softening agent in the course of processing, as human body and environment are all had dysgenic plasticizer DOP, is moved out in the PVC product uses easily, and its application progressively is restricted; By prepared transparent material goods such as TPU, performances such as their chemical resistance, weathering resistance are all generally poor.
Add softening agent in the preparation thermoplastic elastomer, as process wet goods, be a kind of preparation technology who generally adopts, adopt traditional technology, blend with compositions such as softening agent, hydrogenated styrene thermoplastic elastomer and polyolefine, have that poor heat resistance, weathering resistance are poor, treated oil is easily moved out, goods volatility, and shortcoming such as opaque.Publication number CN1966560 discloses a kind of thermoplastic elastomer, and adopting SEBS, PP, rubber filling oil is base-material, adds POE and properties-correcting agent, though improve thermotolerance, but still used treated oil.
Summary of the invention
The object of the present invention is to provide a kind of transparent and do not contain any plasticizer (as processing wet goods) thermoplastic elastomer.
A further object of the present invention is to provide a kind of above-mentioned process for preparation of thermoplastic elastomer and purposes.
The present invention solves the problems of the technologies described above the technical scheme of taking, a kind of thermoplastic elastomer, and it comprises the following component in total weight percent:
A, polypropylene 5～85
B, vinylation hydrogenated styrene/conjugated diolefine based block copolymer 5～90
C, Thermoplastic Elastomer, Olefinic 5～90.
The described polypropylene of A component preferably includes one or more the blend in the polypropylene, transparent base (as talcum powder, Sodium Benzoate, organophosphate, sorbyl alcohol condenses etc.) modified polypropene, homo-polypropylene of atactic copolymerized polypropene, ternary polymerized polypropylene, heterogeneous crushing-resistant copolymerization polypropylene, alpha-olefin modification.
A ingredients constitute total weight percent counts 5,6, and 7,8,9,10,11,12,13,14,16,18,20,22,24,26,28,30,32,34,35,36,37,38,39,40,41,42,43,44,45,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,85.
Described polypropylene further preferably include atactic copolymerized polypropene, alpha-olefin modification polypropylene, add one or more the blend in the homo-polypropylene (mPP) of transparent modified dose polypropylene, the isotactic that adopts metallocene catalyst polymerisation and a rule form.Metallocene catalyst is used for modified polypropene as nucleator, has improved the polyacrylic transparency.
Described polypropylene most preferably is atactic copolymerized polypropene, mainly be utilized that its transparency is good, nontoxic, anti-electrocorrosion, the anti-bursting by freezing of the burn into of anti-most of chemical substances the, non-scaling, excellent properties such as wear-resistant, and great majority meet U.S. FDA and American Pharmacopeia requirement.
Described polypropylene, it is at 230 ℃, and (ASTM D1238 testing standard) melt flow rate (MFR) is preferably greater than 0.5g/10min, more preferably greater than 1g/10min usually greater than 0.1g/10min under the 2.16kg loading condition; Its melt flow rate (MFR) preferably is lower than 80g/10min usually less than 100g/10min, more preferably less than 60g/10min, more preferably less than 40g/10min.
Described atactic copolymerized polypropene, for example concrete, random copolymerization PP such as DJ-560SW (MFR is 18) and DJ-570S (MFR is 28) etc. that Hunan petroleum chemistry (Korea S) is produced; RP346R of Basel (Basell) (the random copolymerization PP that CSPC is produced, MFR is 25) and RP348S (MFR is 40) etc.; W331 (melting index MFR is 7) and S331 (also claim SPG165, MFR is 2) that Singapore's polyolefins company (TPC) is produced; Random copolymerization PP such as RJ700 (MFR is 20) RB221 (MFR is 2) and RJ810 (MFR is 40) etc. that Samsung Dao Daer (SamsungTotal) produces; Random copolymerization PP such as PPR12222 (MFR is 60) and PPR10232 (MFR is 40) that Dao Daer (Total) produces.Described atactic copolymerized polypropene can adopt a kind of product of model, also can adopt the blend of multiple type product.Wherein, the RP-346R that the Basel produces, S331, W331 that Singapore's polyolefins company is produced, the Hunan petroleum chemistry is produced DJ-570S, and the RJ810 that Samsung Dao Daer produces is best.
The homo-polypropylene (mPP) of the isotactic of described employing metallocene catalyst polymerisation and a rule form, for example concrete, MetoceneX50089, MrtoceneX50109 and MetocenX50210 that Basel company (Basell) produces; The NX70084 that BASF (BASF) is produced; The MetoceneX50081 that Targor company produces.
The polypropylene of described alpha-olefin modification, for example concrete, EP3711E1 that Sumitomo Chemical is produced and FH3711F3 etc.; The 273RCXP of the alpha-olefin modification that Montell Polyolefins company produces and 276RCXP etc.
The polypropylene that described interpolation is transparent modified dose, for example concrete, Acclear8940X that Amoco company produces and Acclear8649X etc.; Raise PPJ301G, the PIYF680 of sub-petrochemical iy produced and PFF700 etc.
The described vinylation hydrogenated styrene of B component/conjugated diolefine based block copolymer be based on the hydrogenated polyisoprene rubber of vinylation hydrogenated styrene block copolymers (V-SEPS), based on the hydrogenated styrene block copolymers (V-SEBS) of the hydrogenated butadiene polymer rubber of vinylation, based on the hydrogenated styrene block copolymers (V-SEEPS) of the hydrogenated polyisoprene/divinyl rubber of vinylation, described vinylation hydrogenating conjugate diene, be no less than 85% unsaturated link(age) and be hydrogenated, the vinylation rate is more than 60%.Above-described vinylation hydrogenated styrene/conjugated diolefine based block copolymer can adopt a kind of product of model, also can adopt the blend of multiple type product.
B ingredients constitute total weight percent counts 5,5.5, and 6,6.5,7,7.5,8,9,10,11,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,41,41.5,42,42.5,43,43.5,44,44.5,45,45.5,46,46.5,47,48,49,50,50.5,51,51.5,52,52.5,53,53.5,54,54.5,55,55.5,56,56.5,57,57.5,58,60,62,64,66,68,70,72,74,76,78,80,82,84,86,88,90.
The V-SEPS of described vinylation, V-SEBS, V-SEEPS, wherein hydrogenating conjugate diene block main chain is because its structure difference following (the vinylation rate is more than 60%) of vinylation:
Vinylation hydrogenated styrene/conjugated diolefine based block copolymer (as V-SEEPS, V-SEPS, V-SEBS) that the present invention adopts is compared under identical experiment condition with SEBS, because vinylation hydrogenating conjugated diene block structure is more similar to PP, particularly better with PP with the consistency of random copolymerization PP, make that the prepared thermoplastic elastomer transparency of the present invention is more outstanding.
Vinylation hydrogenated styrene/conjugated diolefine based block copolymer is for example concrete, the HYBRAR that Kuraray (Kuraray) is produced
TM7311, HYBRAR
TM7311F, HYBRAR
TM7311K, HYBRAR
TM7125, HYBRAR
TM7125F etc., section rise the MD6945 that (Kraton) produces, MD6932 etc.Wherein, the HYBRAR of Kuraray production
TMThe MD6945 that production is risen by 7311 (styrene content is 12%, Shao A hardness 41) and section is best (styrene content is 12%, Shao A hardness 33).
The described Thermoplastic Elastomer, Olefinic of C component comprises the multipolymer of alpha-olefin, as ethylene/propene copolymer, ethene/butene-1 copolymer, ethene/1-hexene copolymer, ethene/1-octene copolymer, third rare/butene-1 copolymer, propylene/1-hexene copolymer, propylene/1-octene copolymer etc.
Specifically for example, the ENGAGE of DOW Chemical (Dow) production
TM7467,7447,7380,7387 grade and ENGAGE
TM8842,8180,8130,8137 etc.; The VERSIFY that DOW Chemical (Dow) is produced
TM2000,2200,2400,3401 etc.; The EXACT of ExxonMobil chemical production
TMPlastomers5061,5062,5361,5371 etc.; The Vistamaxx of ExxonMobil chemical production
TM1100,1120,3000,6100,6200 etc.Described act olefinic thermoplastic elastomer can adopt a kind of product of model, also can adopt the blend of multiple type product.The VERSIFY that produces of DOW Chemical (Dow) wherein
TM2400,3401 is best.
Described thermoplastic elastomer is at 230 ℃, 2.16kg the melt flow rate (MFR) of (ASTM D 1238 testing standards) is 0.1～100g/10min (testing tool is the model MP993 that U.S. Tinius 0lsen produces) under the loading condition, and satisfy following equation: melting index=0.1～100 of the melting index+Z of the melting index+Y of X * A component * B component * C component, wherein, X, Y, Z are respectively the percentage ratio of A, B, C ingredients constitute gross weight.
Shao A hardness of described thermoplastic elastomer is 0～95 (ASTM D2240 testing standard), and satisfy following equation: Shao A hardness=0～95 of Shao A hardness+N * C component of Shao A hardness+M * B component of L * A component, wherein, L, M, N are respectively the percentage ratio of A, B, C ingredients constitute gross weight.
Described thermoplastic elastomer, it is at 25 ℃, humidity 50%, the transmittance under the thickness 300 μ m conditions is not less than 85%.Testing apparatus be the transmittance tester (Diffusion SystemLtd., UK).
The invention provides a kind of process for preparation of thermoplastic elastomer, comprise the steps:
A, provide polypropylene 5～85 weight %, vinylation hydrogenated styrene/conjugated diolefine based block copolymer 5～90 weight %, the mixture of Thermoplastic Elastomer, Olefinic 5～90 weight % in gross weight;
B, the mixture of steps A is carried out mixing, obtain thermoplastic elastomer, thermoplastic elastomer of the present invention adopts physical blending fully, does not have any chemical reaction.
Adopt twin screw extruder (German Berstorff company produces described mixing comprising, model ZE25A) granulation, processing condition are: 180～200 ℃ of head temperatures, 160～180 ℃ of screw rod pan feeding section temperature, 180～220 ℃ of screw rod melt zone temperature, screw speed are 150～450rpm.
The invention provides a kind of purposes of thermoplastic elastomer, be used to make opaque products, as coating material, food product pack, electric wire, electron device, toy, medical device etc.
Concrete, thermoplastic elastomer of the present invention can be used for making following products, but is not restricted to this:
(1) the soft and transparent coating material of polyolefine HDPE, LDPE, LLDPE, PP, PS and thermoplastic elastomer TPE etc.
(2) electron device is as earphone unit and electric wire transparent coating materials such as (containing medical electric wire).
(3) transparent toy and other transparent devices.
(4) add additive and Masterbatch etc., further add flame retardant, all can make different grades electric wire or its coating material.
(5) add processing aid etc., make thermoplastic elastomer of the present invention have smooth property and wear resistance etc., be applied to the product of different performance requirement.
(6) medical transfusion device is as medical catheter, medical film material and accessory.
The invention has the beneficial effects as follows:
1, thermoplastic elastomer of the present invention is under the prerequisite of not using softening agent, and transparency is good, at 25 ℃, and humidity 50%, the transparency under the thickness 300 μ m conditions is not less than 85%;
2, thermoplastic elastomer of the present invention does not contain any plasticizer (as alkane oil, naphthenic oil and aromatic hydrocarbons wet goods), has avoided above-mentioned auxiliary agent moving out in use, thereby has guaranteed to be applied to being perfectly safe on the products such as food product pack, medical device;
3, thermoplastic elastomer softness of the present invention;
4, Shao A hardness of thermoplastic elastomer of the present invention is 0～95;
5, the melt flow rate (MFR) of thermoplastic elastomer of the present invention is 0.1～100g/10min;
6, thermoplastic elastomer good weatherability of the present invention;
7, thermoplastic elastomer chemical resistance of the present invention is good, and solvent resistance is good.
Embodiment
A kind of thermoplastic elastomer comprises the following component in total weight percent:
A, polypropylene 5～85
B, vinylation hydrogenated styrene/conjugated diolefine based block copolymer 5～90
C, Thermoplastic Elastomer, Olefinic 5～90
Embodiment 1
Following component represents that by product type each product type all elaborates in the summary of the invention part.
Thermoplastic elastomer comprises the following component in total weight percent:
A、RP-346R 10
B、HYBRAR
TM7311K 45
C、VERSIFY
TM3401 45
The mixture of said components is provided, adopt twin screw extruder to carry out mixing granulator in mixture, twin screw extruder is that German Berstorff company produces, model ZE25A, processing condition are: 190～220 ℃ of melt temperatures, screw speed are 100～450rpm, 180～200 ℃ of head temperatures, 160～180 ℃ of screw rod pan feeding section temperature, 180～220 ℃ of screw rod melt zone temperature obtain thermoplastic elastomer.
Embodiment 2
Thermoplastic elastomer comprises the following component in total weight percent:
A、RP-346R 10
B、Kraton MD6945 22.5
B、HYBRAR
TM7311K 22.5
C、VERSIFY
TM3401 45
Thermoplastic elastomer technology is identical with embodiment 1.
Embodiment 3
Thermoplastic elastomer comprises the following component in total weight percent:
A、RP-346R 10
B、HYBRAR
TM7311K 45
C、VERSIFY
TM3401 22.5
C、VERSIFY
TM2400 22.5
Thermoplastic elastomer technology is identical with embodiment 1.
Embodiment 4
Thermoplastic elastomer comprises the following component in total weight percent:
A、RJ810 25
B、HYBRAR
TM7311K 63
C、VERSIFY
TM3401 12
Thermoplastic elastomer technology is identical with embodiment 1.
Embodiment 5
Thermoplastic elastomer comprises the following component in total weight percent:
A、RJ810 15
B、Kraton MD6945 5
C、VERSIFY
TM2400 80
Thermoplastic elastomer technology is identical with embodiment 1.
Embodiment 6
Thermoplastic elastomer comprises the following component in total weight percent:
A、W331 30
B、Kraton MD6945 50
C、VERSIFY
TM3401 20
Embodiment 7
Thermoplastic elastomer comprises the following component in total weight percent:
A、S331 43
B、HYBRAR
TM7311F 52
C、VERSIFY
TM3401 5
Wherein, S331 and HYBRAR
TM7311F all meets American Pharmacopeia.
Embodiment 8
Thermoplastic elastomer comprises the following component in total weight percent:
A、S331 43
B、Kraton MD6945 52
C、VERSIFY
TM3401 5
Wherein, S331, HYBRAR
TM7311F, Kraton MD6945 all meet American Pharmacopeia.
Thermoplastic elastomer technology is identical with embodiment 1.
Embodiment 9
Thermoplastic elastomer comprises the following component in total weight percent:
A、S331 43
B、Kraton MD6945 26
B、HYBRAR
TM7311F 26
C、VERSIFY
TM3401 5
Thermoplastic elastomer technology is all identical with embodiment 1.
Embodiment 10
Thermoplastic elastomer comprises the following component in total weight percent:
A、S331 35
B、HYBRAR
TM7311F 55
C、VERSIFY
TM2400 10
Thermoplastic elastomer technology is identical with embodiment 1.
Embodiment 11
Thermoplastic elastomer comprises the following component in total weight percent:
A、S331 35
B、Kraton MD6945 55
C、VERSIFY
TM2400 10
Thermoplastic elastomer technology is identical with embodiment 1.
Embodiment 12
Thermoplastic elastomer comprises the following component in total weight percent:
A、S331 35
B、Kraton MD6945 27.5
B、HYBRAR
TM7311F 27.5
C、VERSIFY
TM2400 10
Thermoplastic elastomer technology is identical with embodiment 1.
Embodiment 13
Thermoplastic elastomer comprises the following component in total weight percent:
A、W331 43
B、HYBRAR
TM7311F 45
C、VERSIFY
TM3401 12
Wherein, W331, MD6945, HYBRAR
TM7311F all meets American Pharmacopeia.
Thermoplastically elasticity preparation technology is identical with embodiment 1.
Embodiment 14
Thermoplastic elastomer comprises the following component in total weight percent:
A、W331 43
B、Kraton MD6945 45
C、VERSIFY
TM3401 12
Thermoplastic elastomer technology is identical with embodiment 1.
Embodiment 15
Thermoplastic elastomer comprises the following component in total weight percent:
A、W331 43
B、Kraton MD6945 22.5
B、HYBRAR
TM7311F 22.5
C、VERSIFY
TM3401 12
Thermoplastic elastomer technology is identical with embodiment 1.
The above-mentioned thermoplastic elastomer that makes is carried out performance test, comprises following sign:
(1) the thermoplastic elastomer pellet is at 200 ℃ of preheating 10min, hot pressing 5min, and the 5min that colds pressing makes batten, surveys Shao's A hardness (ASTM D2240 testing standard).
(2) the thermoplastic elastomer pellet is at 230 ℃, and (ASTM D 1238 testing standards) survey melt flow rate (MFR) under the 2.16kg loading condition, and testing tool is the model MP993 that U.S. Tinius 0lsen produces.
(3) the thermoplastic elastomer pellet is at 200 ℃ of preheating 10min, hot pressing 5min, 5min colds pressing, be made for the thick batten of 1mm, batten is cut out sample (GB/T 16421-1996) with standard cabinet cutter and is carried out the tensile property test, experimental temperature: 23 ℃, and equipment: universal electrical puller system (Instron4465), draw speed: 100mm/min, tensile loading: 2KN.
(4) the thermoplastic elastomer pellet is at 200 ℃ of preheating 10min, hot pressing 5min, and 5min colds pressing, be made for 300 μ m thick films, carry out the transmittance test, experimental temperature: 25 ℃, humidity: 50%, testing apparatus: the transmittance tester (Diffusion System Ltd., UK).
Test result and purposes are shown in table 1, table 2:
Table 1
| Shao A hardness | Melting index g/10min | Tensile strength MPa | Elongation at break % | Transmittance % | |
| Embodiment 1 | 70 | 5.1 | 10.2 | 900 | 92 |
| Embodiment 2 | 68 | 5.3 | 9.6 | 860 | 91 |
| Embodiment 3 | 66 | 4.2 | 9.8 | 810 | 88 |
| Embodiment 4 | 78 | 12.1 | 15.2 | 610 | 86 |
| Embodiment 5 | 93 | 7.7 | 17.8 | 580 | 85 |
| Embodiment 6 | 80 | 4.2 | 15.6 | 750 | 88 |
| Embodiment 7 | 88 | 2.7 | 23.0 | 710 | 92 |
| Embodiment 8 | 85 | 2.8 | 19.2 | 680 | 90 |
| Embodiment 9 | 86 | 2.7 | 20.2 | 700 | 91 |
| Embodiment 10 | 82 | 2.2 | 17.0 | 850 | 88 |
| Embodiment 11 | 80 | 2.3 | 15.3 | 830 | 88 |
| Embodiment 12 | 81 | 2.2 | 16.0 | 830 | 88 |
| Embodiment 13 | 95 | 4.2 | 20.5 | 780 | 85 |
| Embodiment 14 | 93 | 4.3 | 18.2 | 750 | 85 |
| Embodiment 15 | 93 | 4.3 | 19.2 | 760 | 85 |
Table 2
| Purposes | |
| Embodiment 1 | The soft and transparent cover material of polyolefin resin, TPE etc. etc. |
| Embodiment 2 | The soft and transparent cover material of polyolefin resin, TPE etc. etc. |
| Embodiment 3 | The soft and transparent cover material of polyolefin resin, TPE etc. etc. |
| Embodiment 4 | Transparent electronics is as electronics electric wire and coating material thereof etc. |
| Embodiment 5 | Transparent toy and other transparent devices etc. |
| Embodiment 6 | Transparent packaging material etc. |
| Embodiment 7 | Food wrapping material, medical catheter and film material etc. |
| Embodiment 8 | Food wrapping material, medical catheter and film material etc. |
| Embodiment 9 | Food wrapping material, medical catheter and film material etc. |
| Embodiment 10 | Food wrapping material, medical catheter and film material etc. |
| Embodiment 11 | Food wrapping material, medical catheter and film material etc. |
| Embodiment 12 | Food wrapping material, medical catheter and film material etc. |
| Embodiment 13 | Medical accessory is as combination cover, Perfusion drip funnel etc. |
| Embodiment 14 | Medical accessory is as combination cover, Perfusion drip funnel etc. |
| Embodiment 15 | Medical accessory is as combination cover, Perfusion drip funnel etc. |
The film sample of embodiment 7～embodiment 15 is through 120 ℃, and the transparency behind the 30min sterile test does not reduce, and shape can be recovered fully.
Claims (9)
1, a kind of thermoplastic elastomer, it comprises the following component in total weight percent:
A, polypropylene 5～85
B, vinylation hydrogenated styrene/conjugated diolefine based block copolymer 5～90
C, Thermoplastic Elastomer, Olefinic 5～90.
2, thermoplastic elastomer according to claim 1 is characterized in that: described polypropylene comprises one or more the blend in the polypropylene, transparent base modified polypropene, homo-polypropylene of atactic copolymerized polypropene, ternary polymerized polypropylene, heterogeneous crushing-resistant copolymerization polypropylene, alpha-olefin modification.
3, thermoplastic elastomer according to claim 2 is characterized in that: described polypropylene comprise atactic copolymerized polypropene, alpha-olefin modification polypropylene, add one or more the blend in the homo-polypropylene of transparent modified dose polypropylene, the isotactic that adopts metallocene catalyst polymerisation and a rule form.
4, thermoplastic elastomer according to claim 3 is characterized in that: described polypropylene is an atactic copolymerized polypropene.
5, thermoplastic elastomer according to claim 1, it is characterized in that: described vinylation hydrogenated styrene/conjugated diolefine based block copolymer is for based on the hydrogenated styrene block copolymers of the hydrogenated polyisoprene rubber of vinylation, based on the hydrogenated styrene block copolymers of the hydrogenated butadiene polymer rubber of vinylation, based on the hydrogenated styrene block copolymers of the hydrogenated polyisoprene/divinyl rubber of vinylation, wherein, described vinylation hydrogenating conjugate diene, be no less than 85% unsaturated link(age) and be hydrogenated, the vinylation rate is more than 60%.
6, according to the described thermoplastic elastomer of one of claim 1 to 5, it is characterized in that: described thermoplastic elastomer is at 230 ℃, and the melt flow rate (MFR) under the 2.16kg loading condition is 0.1～100g/10min; Shao A hardness of described thermoplastic elastomer is 0～95; At 25 ℃, humidity 50%, the transmittance under the thickness 300 μ m conditions is not less than 85%.
7, a kind of at the described process for preparation of thermoplastic elastomer of claim 1, it is characterized in that comprising the steps:
A, provide polypropylene 5～85 weight % of gross weight 100%, vinylation hydrogenated styrene/conjugated diolefine based block copolymer 5～90 weight %, the mixture of Thermoplastic Elastomer, Olefinic 5～90 weight %;
B, the mixture of steps A is carried out physical blending, obtain thermoplastic elastomer.
8, process for preparation of thermoplastic elastomer according to claim 7, it is characterized in that: described mixing for adopting the twin screw extruder granulation, processing condition are: 180～200 ℃ of head temperatures, 160～180 ℃ of screw rod pan feeding section temperature, 180～220 ℃ of melting mixing section temperature.
9, a kind of purposes at the described thermoplastic elastomer of claim 1 is used to make transparent coating material, food product pack, electric wire, electron device, toy, medical device.
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| CNA2007100457394A CN101381490A (en) | 2007-09-07 | 2007-09-07 | Thermoplastic elastomer, preparation method and use thereof |
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| CN108968500A (en) * | 2018-07-06 | 2018-12-11 | 浙江圣奥家具制造有限公司 | A kind of netted bed course of 3D, temperature-regulating cushion and production method |
| CN110003600A (en) * | 2019-02-28 | 2019-07-12 | 威海联桥新材料科技股份有限公司 | Non- oil-filled peritoneal dialysis catheters TPE material of one kind and preparation method thereof |
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