CN102585427A - SEBS (Styrene-Ethylene-Butadiene-Styrene) elastomer composite material and preparation method thereof - Google Patents
SEBS (Styrene-Ethylene-Butadiene-Styrene) elastomer composite material and preparation method thereof Download PDFInfo
- Publication number
- CN102585427A CN102585427A CN2012100402284A CN201210040228A CN102585427A CN 102585427 A CN102585427 A CN 102585427A CN 2012100402284 A CN2012100402284 A CN 2012100402284A CN 201210040228 A CN201210040228 A CN 201210040228A CN 102585427 A CN102585427 A CN 102585427A
- Authority
- CN
- China
- Prior art keywords
- sebs
- styrene
- initiator
- oxidation inhibitor
- composite material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229920001971 elastomer Polymers 0.000 title abstract description 30
- 239000000806 elastomer Substances 0.000 title abstract description 7
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 title abstract 8
- 238000004132 cross linking Methods 0.000 claims abstract description 50
- 239000003999 initiator Substances 0.000 claims abstract description 34
- -1 Styrene-Ethylene-Propylene-Styrene Chemical class 0.000 claims abstract description 8
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 4
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 4
- 230000003647 oxidation Effects 0.000 claims description 34
- 238000007254 oxidation reaction Methods 0.000 claims description 34
- 239000003112 inhibitor Substances 0.000 claims description 33
- 239000008187 granular material Substances 0.000 claims description 19
- 239000011159 matrix material Substances 0.000 claims description 14
- 238000005303 weighing Methods 0.000 claims description 14
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- 229920001577 copolymer Polymers 0.000 claims description 9
- 238000005453 pelletization Methods 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 150000002978 peroxides Chemical group 0.000 claims description 3
- 239000002530 phenolic antioxidant Substances 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 239000005060 rubber Substances 0.000 abstract description 23
- 239000000463 material Substances 0.000 abstract description 14
- 229920005549 butyl rubber Polymers 0.000 abstract description 8
- 230000004071 biological effect Effects 0.000 abstract description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 229920001155 polypropylene Polymers 0.000 abstract 3
- 230000007547 defect Effects 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000010526 radical polymerization reaction Methods 0.000 description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 235000014347 soups Nutrition 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- 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
- B29C48/25—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to an SEBS (Styrene-Ethylene-Butadiene-Styrene) elastomer composite material and a preparation method thereof. The SEBS elastomer composite material consists of the following components in parts by weight: 100 parts of SEBS, 20-50 parts of a PP (Propene Polymer), 70-100 parts of SEPS (Styrene-Ethylene-Propylene-Styrene), 0.15-0.25 part of an antioxidant, 0.02-0.1 part of an initiator and a small amount of a crosslinking aid. Polymerization of SEBS and PP free radicals is initiated by using the initiator, so that the tensile strength of a material is enhanced, and permanent deformation of the material is reduced. The SEBS elastomer composite material disclosed by the invention has high physical, chemical and biological properties, a reasonable formula, stable performance and high elasticity, is suitable to be applied to medical pistons, rubber plugs and rubber pads, is used for overcoming the defects of a butyl piston, the rubber plug and the rubber pad, and is a novel elastomer material which can be used for completely substituting butyl rubber.
Description
Technical field
The present invention relates to polymeric material field, the elastomerics novel material of the crosslinked preparation of SEBS specifically.
Background technology
Styrene-ethylene-butylene-styrene segmented copolymer (SEBS) is a kind of multiduty novel thermoplastic elastomer; Be to be end segments with the PS, the ethylene-butene copolymer that obtains with the polyhutadiene hydrogenation is the linearity three embedding multipolymers of middle elastomeric block.PS is hard section in the SEBS molecular chain, has the effect of physical crosslinking point, and middle segment is saturated polybutadiene soft section.With the elastomerics is external phase, and PS is that the network structure of disperse phase has given SEBS the elasticity similar with traditional vulcanized rubber, has the double properties of plastics and rubber concurrently.The SEBS shaping speed is faster than traditional vulcanized rubber technology, need not vulcanize, and adding the angle clout can repeatedly recycle, the protection environment.SEBS not only has the good mechanical performance, also has excellent ageing-resistantly simultaneously, and oil resistant, chemicals-resistant corrodibility and advantage such as nonpoisonous and tasteless are because be widely used in medical field.Therefore SEBS is after chemically crosslinked, and the ability that can bear tension force, pressure and shearing force is improved, and for mechanical property that improves material and the range of application of widening SEBS, can work in-process adds an amount of linking agent and the SEBS matrix material is carried out little cross-linking modified.
The butyl rubber resistance to air loss is good, good, the inherent cleanliness factor of good heat resistance, resistance to acids and bases is high, has replaced tree elastomer very soon and has produced medical piston, plug, rubber cushion.Nowadays, most medical piston, plug, rubber cushion are base material production with the butyl rubber.Yet; Butyl piston, plug and rubber cushion are prone to that in use the soup muddiness takes place, particulate exceeds standard; Problems such as puncture exfoliation, this mainly is because of rubber and metals ion, rubber ingredients, vulcanizing agent and vulcanization leveller in oligopolymer, filler and the MOX, tinting material etc. and the acting result of medicine in the virgin rubber in the butyl rubber.
Though SEBS and other polyolefine material melt blending matrix materials have remedied butyl rubber in the deficiency that reacts with soup and particulate exceeds standard, and still can not satisfy the requirement of medical piston, plug, rubber cushion in elasticity, compression set and puncture resistance.
Summary of the invention
Technical problem to be solved by this invention is exactly the deficiency that overcomes above-mentioned prior art, provide a kind of prescription rationally, stable performance, good springiness, SEBS cross-linking elasticity composite material that resistance toheat is good and preparation method thereof.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of SEBS cross-linking elasticity composite material, its component comprise styrene-ethylene-butylene-styrene segmented copolymer (SEBS), Vestolen PP 7052 (PP), styrene-ethylene-propylene-styrene segmented copolymer (SEPS), oxidation inhibitor, initiator, crosslinking coagent; Its weight consists of 100 parts of SEBS, 20 ~ 50 parts of PP, 70 ~ 100 parts of SEPS, 0.15 ~ 0.25 part in oxidation inhibitor, 0.02 ~ 0.1 part of initiator, crosslinking coagent trace.
SEBS cross-linking elasticity composite material of the present invention; The styrene content of its component S EBS is 18 ~ 30%; The melting index of PP be 7 ~ 16g/min (230 ℃, 2.16Kg), the styrene content of component S EPS is 12 ~ 20%; Oxidation inhibitor is phenolic antioxidant or phosphorus-containing antioxidant, and initiator is a peroxide initiator.
The preparation method of SEBS cross-linking elasticity composite material according to the invention is: take by weighing component S EBS, PP, SEPS, oxidation inhibitor, initiator and crosslinking coagent according to proportioning; At first SEBS, PP, part oxidation inhibitor, initiator and crosslinking coagent are put into rotation mixer and mix, then with compound add twin screw extruder crosslinked, extrude, pelletizing obtains the composite granule I; Then the component S EPS that takes by weighing is put into rotation mixer with remaining oxidation inhibitor with gained composite granule I and mix, carry out secondary in the adding twin screw extruder and extrude, obtain matrix material.
The preparation method of SEBS cross-linking elasticity composite material of the present invention; Said twin screw extruder crosslinked, extrude and from the charging opening to the head, be divided into five sections, temperature is controlled to be: first section 155 ~ 170 ℃, second section 170 ~ 180 ℃; The 3rd section 180 ~ 195 ℃; The 4th section 170 ~ 185 ℃, the 5th section 170 ~ 180 ℃, 170 ℃ of head temperatures.
Initiator causes SEBS and PP radical polymerization in the SEBS cross-linking elasticity composite material of the present invention, controls the crosslinking degree of SEBS and PP through the addition that changes initiator.Since crosslinked with degraded and deposit in this process, so in prescription, add the generation that a certain amount of oxidation inhibitor stops degraded.Because the initiation of SEBS and PP merely under action of evocating, is carried out crosslinked slower and crosslinking degree is less, so in prescription, add the crosslinking coagent of minute quantity, so that promotion SEBS and PP are crosslinked at short notice, avoids the generation of degrading simultaneously.Composite granule I after crosslinked and SEPS melting mixing granulation in twin screw again, purpose are to reduce its hardness, increase its elasticity.
SEBS cross-linking elasticity composite material of the present invention has good physics, chemistry and biological property; Be fit to be applied to medical piston, plug, rubber cushion; Having remedied the deficiency of butyl piston, plug, rubber cushion, is a kind of elastomerics novel material that can replace butyl rubber fully.Reasonable, the stable performance of its prescription, good springiness, the crosslinked preparation elastomer material of the SEBS of preparation can be used to make medical piston, plug, rubber cushion processing request.
Embodiment
Below in conjunction with specific embodiment the present invention is done further explain, but the present invention is not limited to following embodiment.
A kind of SEBS cross-linking elasticity composite material, its component comprise styrene-ethylene-butylene-styrene segmented copolymer (SEBS), Vestolen PP 7052 (PP), styrene-ethylene-propylene-styrene segmented copolymer (SEPS), oxidation inhibitor, initiator, crosslinking coagent; Its weight consists of 100 parts of SEBS, 20 ~ 50 parts of PP, 70 ~ 100 parts of SEPS, 0.15 ~ 0.25 part in oxidation inhibitor, 0.02 ~ 0.1 part of initiator, crosslinking coagent trace.
SEBS cross-linking elasticity composite material of the present invention; The styrene content of its component S EBS is 18 ~ 30%; The melting index of PP be 7 ~ 16g/min (230 ℃, 2.16Kg), the styrene content of component S EPS is 12 ~ 20%; Oxidation inhibitor is phenolic antioxidant or phosphorus-containing antioxidant, and initiator is a peroxide initiator.
The preparation method of SEBS cross-linking elasticity composite material according to the invention is: take by weighing component S EBS, PP, SEPS, oxidation inhibitor, initiator and crosslinking coagent according to proportioning; At first SEBS, PP, part oxidation inhibitor, initiator and crosslinking coagent are put into rotation mixer and mix, then with compound add twin screw extruder crosslinked, extrude, pelletizing obtains the composite granule I; Then the component S EPS that takes by weighing is put into rotation mixer with remaining oxidation inhibitor with the composite granule I and mix, carry out secondary in the adding twin screw extruder and extrude, obtain matrix material.
The preparation method of SEBS cross-linking elasticity composite material of the present invention; Said twin screw extruder crosslinked, extrude and from the charging opening to the head, be divided into five sections, temperature is controlled to be: first section 155 ~ 170 ℃, second section 170 ~ 180 ℃; The 3rd section 180 ~ 195 ℃; The 4th section 170 ~ 185 ℃, the 5th section 170 ~ 180 ℃, 170 ℃ of head temperatures.
Initiator causes SEBS and PP radical polymerization in the SEBS cross-linking elasticity composite material of the present invention, controls the crosslinking degree of SEBS and PP through the addition that changes initiator.Since crosslinked with degraded and deposit in this process, so in prescription, add the generation that a certain amount of oxidation inhibitor stops degraded.Because the initiation of SEBS and PP merely under action of evocating, is carried out crosslinked slower and crosslinking degree is less, so in prescription, add the crosslinking coagent of minute quantity, so that promotion SEBS and PP are crosslinked at short notice, avoids the generation of degrading simultaneously.Composite granule I after crosslinked and SEPS melting mixing granulation in twin screw again, purpose are to reduce its hardness, increase its elasticity.
SEBS cross-linking elasticity composite material of the present invention, its reaction mechanism is: initiator causes SEBS and PP produces radical, and crosslinking reaction occurs on the tertiary carbon atom of SEBS and PP; Cause receives β-cracking and disproportionation is degraded into a lot of free groups, and this can cause SEBS and PP that chemical reactions such as polycondensation, degraded and oxidation take place, and graft crosslinking takes place on the molecular chain of SEBS and PP crosslinking coagent in advance settles out macromolecular chain rupture; Under action of evocating, SEBS and PP radical self be cross-linked with each other, form a space reticulated structure; Strengthened intermolecular reactive force; When molecular chain received the force-extension distortion, this structure can reduce the slippage ability of material molecule chain, made sub-chain motion become difficult; Tensile strength of material increases, and tension set then reduces.Want the deformation that reaches identical, just must elevated temperature, promptly improve the heat-drawn wire of material.That is to say that initiator causes SEBS and PP radical polymerization, SEBS and the PP radical self and the formation reticulated structure that is cross-linked with each other; The network interpenetration; Increase intermolecular reactive force, received external force to do the time spent, be difficult for producing relative slippage between the macromolecular chain; Strengthen the tensile strength of composite granule I, reduced the tension set of composite granule I.SEPS is saturated segmented copolymer, excellent elasticity, and hardness is low, has reticulated structure, and is splendid with the consistency of composite granule I, improved the consistency and elasticity of gained matrix material.
Embodiment 1: take by weighing 0.05 part of 100 parts of SEBS (PS%:18%), 40 parts of PP (MI:7g/min), 80 parts of SEPS (PS%:15), 0.25 part in oxidation inhibitor (trade mark 1010) and initiator DCP (Di Cumyl Peroxide 99), the crosslinking coagent trace.At first SEBS, PP, 0.15 part oxidation inhibitor, initiator and crosslinking coagent are put into rotation mixer and mix, then with compound add twin screw extruder crosslinked, extrude, pelletizing obtains the composite granule I; Said twin screw extruder crosslinked, extrude and from the charging opening to the head, be divided into five sections, temperature is controlled to be: first section 155 ~ 170 ℃, second section 170 ~ 180 ℃, the 3rd section 180 ~ 195 ℃, the 4th section 170 ~ 185 ℃, the 5th section 170 ~ 180 ℃, 170 ℃ of head temperatures.Then the component S EPS that takes by weighing and remaining oxidation inhibitor and composite granule I being put into rotation mixer mixes; Putting into rotation mixer mixes; Then add and carry out secondary in the twin screw extruder and extrude pelletizing and obtain matrix material, processing temperature is controlled at 160 ~ 195 ℃.Matrix material is 58A through recording hardness, and tensile strength 5MPa, elongation at break are 400%, and compression set is 38%, can be applied to medical piston fully, through detecting the requirement that each item chemistry and biological property also satisfy medical piston fully.
Embodiment 2: take by weighing 0.1 part of 100 parts of SEBS (PS%:25%), 50 parts of PP (MI:12g/min), 95 parts of SEPS (PS%:12), 0.15 part in oxidation inhibitor (trade mark 168), oxidation inhibitor (trade mark 1010) and 0.1 part of initiator B IBP (dual-tert-butyl peroxo-diisopropyl benzene), crosslinking coagent trace.At first SEBS, PP, 0.15 part oxidation inhibitor (trade mark 168), initiator and crosslinking coagent are put into rotation mixer and mix, then with compound add twin screw extruder crosslinked, extrude the composite granule I.Said twin screw extruder crosslinked, extrude and from the charging opening to the head, be divided into five sections, temperature is controlled to be: first section 155 ~ 170 ℃, second section 170 ~ 180 ℃, the 3rd section 180 ~ 195 ℃, the 4th section 170 ~ 185 ℃, the 5th section 170 ~ 180 ℃, 170 ℃ of head temperatures.Then the component S EPS that takes by weighing and 0.1 part of composite granule I with gained of oxidation inhibitor (trade mark 1010) are put into rotation mixer; Mix; Add and to carry out secondary in the twin screw extruder and extrude pelletizing and obtain matrix material, processing temperature is controlled at 160 ~ 190 ℃.Matrix material is 62A through recording hardness, and tensile strength 7.1MPa, elongation at break are 420%, and compression set is 40%, can be applied to medical piston fully, through detecting the requirement that each item chemistry and biological property also satisfy medical piston fully.
Embodiment 3: take by weighing 0.08 part of 100 parts of SEBS (PS%:20%), 20 parts of PP (MI:16g/min), 100 parts of SEPS (PS%:18), 0.25 part in oxidation inhibitor (trade mark 1010) and initiator DCP (Di Cumyl Peroxide 99), the crosslinking coagent trace.At first with SEBS (PS%:20%), PP (MI:16g/min), 0.20 part oxidation inhibitor (trade mark 1010) and initiator DCP (Di Cumyl Peroxide 99), crosslinking coagent is put into rotation mixer and is mixed, then with compound add twin screw extruder crosslinked, extrude; Said twin screw extruder crosslinked, extrude and from the charging opening to the head, be divided into five sections; Temperature is controlled to be: first section 155 ~ 170 ℃, and second section 170 ~ 180 ℃, the 3rd section 180 ~ 195 ℃; The 4th section 170 ~ 185 ℃; The 5th section 170 ~ 180 ℃, 170 ℃ of head temperatures get the composite granule I.Then above-mentioned gained composite granule I is put into rotation mixer with SEPS (PS%:18) that takes by weighing and 0.05 part oxidation inhibitor (trade mark 1010); Mix; Add and to carry out secondary in the twin screw extruder and extrude pelletizing and obtain matrix material, processing temperature is controlled at 170 ~ 190 ℃.Matrix material is 50A through recording hardness, and tensile strength 4.5MPa, elongation at break are 600%, meets the requirements fully according to the standard of medical rubber stopper rubber cushion, can replace butyl rubber and prepare the medical rubber stopper rubber cushion.
Embodiment 4: take by weighing 0.25 part of 100 parts of SEBS (PS%:30%), 25 parts of PP (MI:9g/min), 70 parts of SEPS (PS%:12), oxidation inhibitor (trade mark 168) and 0.09 part of initiator B IBP (dual-tert-butyl peroxo-diisopropyl benzene), crosslinking coagent trace.At first SEBS (PS%:30%), PP (MI:9g/min), 0.20 part oxidation inhibitor (trade mark 168) and initiator B IBP (dual-tert-butyl peroxo-diisopropyl benzene), crosslinking coagent are put into rotation mixer and mixed; Then with compound add twin screw extruder crosslinked, extrude, processing temperature be controlled in 160 ~ 190 ℃ the scope the composite granule I.Said twin screw extruder crosslinked, extrude and from the charging opening to the head, be divided into five sections, temperature is controlled to be: first section 155 ~ 170 ℃, second section 170 ~ 180 ℃, the 3rd section 180 ~ 195 ℃, the 4th section 170 ~ 185 ℃, the 5th section 170 ~ 180 ℃, 170 ℃ of head temperatures.Then above-mentioned gained composite granule I being put into rotation mixer with the oxidation inhibitor (trade mark 168) of SEPS (PS%:12) that takes by weighing and remainder mixes; Add and to carry out secondary in the twin screw extruder and extrude pelletizing and obtain matrix material, processing temperature is controlled at 170 ~ 190 ℃.Matrix material is 51A through recording hardness, and tensile strength 6.5MPa, elongation at break are 690%, meets the requirements fully according to the standard of medical rubber stopper rubber cushion, can replace butyl rubber and prepare the medical rubber stopper rubber cushion.
Claims (4)
1. SEBS cross-linking elasticity composite material, it is characterized in that: its component comprises styrene-ethylene-butylene-styrene segmented copolymer (SEBS), Vestolen PP 7052 (PP), styrene-ethylene-propylene-styrene segmented copolymer (SEPS), oxidation inhibitor, initiator, crosslinking coagent; Its weight consists of 100 parts of SEBS, 20 ~ 50 parts of PP, 70 ~ 100 parts of SEPS, 0.15 ~ 0.25 part in oxidation inhibitor, 0.02 ~ 0.1 part of initiator, crosslinking coagent trace.
2. SEBS cross-linking elasticity composite material according to claim 1; It is characterized in that: the styrene content of said component S EBS is 18 ~ 30%; The melting index of PP be 7 ~ 16g/min (230 ℃, 2.16Kg), the styrene content of component S EPS is 12 ~ 20%; Oxidation inhibitor is phenolic antioxidant or phosphorus-containing antioxidant, and initiator is a peroxide initiator.
3. the preparation method of the said SEBS cross-linking elasticity of claim 1 composite material; It is characterized in that: take by weighing component S EBS, PP, SEPS, oxidation inhibitor, initiator and crosslinking coagent according to proportioning; At first SEBS, PP, part oxidation inhibitor, initiator and crosslinking coagent are put into rotation mixer and mix, then with compound add twin screw extruder crosslinked, extrude, pelletizing obtains the composite granule I; Then the component S EPS that takes by weighing is put into rotation mixer with remaining oxidation inhibitor with gained composite granule I and mix, carry out secondary in the adding twin screw extruder and extrude, obtain matrix material.
4. according to the preparation method of the said SEBS cross-linking elasticity of claim 3 composite material; Said twin screw extruder crosslinked, extrude and from the charging opening to the head, be divided into five sections, temperature is controlled to be: first section 155 ~ 170 ℃, second section 170 ~ 180 ℃; The 3rd section 180 ~ 195 ℃; The 4th section 170 ~ 185 ℃, the 5th section 170 ~ 180 ℃, 170 ℃ of head temperatures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100402284A CN102585427A (en) | 2012-02-22 | 2012-02-22 | SEBS (Styrene-Ethylene-Butadiene-Styrene) elastomer composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100402284A CN102585427A (en) | 2012-02-22 | 2012-02-22 | SEBS (Styrene-Ethylene-Butadiene-Styrene) elastomer composite material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102585427A true CN102585427A (en) | 2012-07-18 |
Family
ID=46474705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100402284A Pending CN102585427A (en) | 2012-02-22 | 2012-02-22 | SEBS (Styrene-Ethylene-Butadiene-Styrene) elastomer composite material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102585427A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103788562A (en) * | 2014-01-27 | 2014-05-14 | 上海日之升新技术发展有限公司 | Thermoplastic elastomer composition for wrapping and overmolding |
| CN103788561A (en) * | 2013-12-20 | 2014-05-14 | 上海日之升新技术发展有限公司 | Thermoplastic elastomer adhering with POM or modified POM at low temperature |
| CN104861407A (en) * | 2015-05-30 | 2015-08-26 | 浙江汪洋高分子材料有限公司 | Formula for thermoplastic elastomer tourniquet |
| CN114015188A (en) * | 2021-11-22 | 2022-02-08 | 南通普力马弹性体技术有限公司 | Thermoplastic elastomer material and preparation equipment and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005068547A1 (en) * | 2004-01-19 | 2005-07-28 | Dsm Ip Assets B.V. | Thermoplastic elastomer composition |
| CN101845193A (en) * | 2009-03-25 | 2010-09-29 | 上海日之升新技术发展有限公司 | Dynamically vulcanized styrene thermoplastic elastomer and preparation method thereof |
| EP2328956A1 (en) * | 2008-09-18 | 2011-06-08 | Arkema France | Novel elastomer material, and method for obtaining same |
| CN102268170A (en) * | 2011-06-09 | 2011-12-07 | 厦门雄基高分子合金股份有限公司 | High performance thermoplastic elastomer and use thereof |
-
2012
- 2012-02-22 CN CN2012100402284A patent/CN102585427A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005068547A1 (en) * | 2004-01-19 | 2005-07-28 | Dsm Ip Assets B.V. | Thermoplastic elastomer composition |
| EP2328956A1 (en) * | 2008-09-18 | 2011-06-08 | Arkema France | Novel elastomer material, and method for obtaining same |
| CN101845193A (en) * | 2009-03-25 | 2010-09-29 | 上海日之升新技术发展有限公司 | Dynamically vulcanized styrene thermoplastic elastomer and preparation method thereof |
| CN102268170A (en) * | 2011-06-09 | 2011-12-07 | 厦门雄基高分子合金股份有限公司 | High performance thermoplastic elastomer and use thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103788561A (en) * | 2013-12-20 | 2014-05-14 | 上海日之升新技术发展有限公司 | Thermoplastic elastomer adhering with POM or modified POM at low temperature |
| CN103788562A (en) * | 2014-01-27 | 2014-05-14 | 上海日之升新技术发展有限公司 | Thermoplastic elastomer composition for wrapping and overmolding |
| CN103788562B (en) * | 2014-01-27 | 2017-05-10 | 上海日之升新技术发展有限公司 | Thermoplastic elastomer composition for wrapping and overmolding |
| CN104861407A (en) * | 2015-05-30 | 2015-08-26 | 浙江汪洋高分子材料有限公司 | Formula for thermoplastic elastomer tourniquet |
| CN114015188A (en) * | 2021-11-22 | 2022-02-08 | 南通普力马弹性体技术有限公司 | Thermoplastic elastomer material and preparation equipment and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101699366B1 (en) | Method of forming a golf ball or a part of a golf ball, and golf balls obtained thereby | |
| CN103756129B (en) | EPT rubber/thermoplastic elastomer and preparation technology thereof | |
| CN106239765B (en) | A kind of method that continuation mode prepares dynamic vulcanization thermoplastic elastomer | |
| RU2554582C2 (en) | Hydrated vulcanisate grade for improving high-temperature properties | |
| CN106751372A (en) | A kind of TPE material and its preparation technology for encapsulated ABS | |
| CN102585319A (en) | Vulcanizing system of brominated butyl rubber/ polypropylene thermoplastic elastomer sealing material and preparation method for sealing material | |
| CN102585427A (en) | SEBS (Styrene-Ethylene-Butadiene-Styrene) elastomer composite material and preparation method thereof | |
| CN102234384B (en) | IPN crosslink-structure compound of tire crown rubber, mixing method and application thereof | |
| CN108641200A (en) | A kind of automobile sealing strip TPV material and preparation method thereof | |
| CN102020807A (en) | High-performance environment-friendly polypropylene blending material and preparation method thereof | |
| CN101851377B (en) | Novel medical powder injection rubber plug and manufacturing method thereof | |
| CN107541004A (en) | A kind of anti-load endurance type TPE thermoplastic elastomer (TPE)s and preparation method thereof | |
| CN102250394B (en) | Tire stock of IPN (Interpenetrating Polymer Network) crosslinked structure and mixing method as well as application thereof | |
| CN102492208A (en) | Method for modifying linear low-density polyethylene by utilizing thermoplastic polyester elastomer | |
| KR20090019803A (en) | High molecular weight coupled block copolymer compositions | |
| CN107109187A (en) | Encapulant composition | |
| CN102875949A (en) | Toughening filler master batch grain and preparation method thereof | |
| CN105566702A (en) | Agricultural tire crown compound of high filling tire reclaimed rubber | |
| CN102604313B (en) | SBS (Styrene-Butadiene-Styrene) crosslinking elastomer composite material and preparation method thereof | |
| CN102241842B (en) | Tyre base compound rubber material with interpenetrating polymer network (IPN) crosslinked structure and blending method and application thereof | |
| CN106750864B (en) | A kind of adjustable dynamic vulcanization thermoplastic elastomer of melt state and preparation method thereof | |
| KR100564367B1 (en) | Olefin thermo plastic elastomer and process thereof | |
| JPWO2019225424A1 (en) | Adhesive resin manufacturing method | |
| CN102250392B (en) | Tire body rubber material with interpenetrating polymer network (IPN) crosslinked structure and mixing method and use thereof | |
| CN102250391B (en) | Tire pad rubber sizing material with IPN (Interpenetrating Polymer Network) cross-linked structure as well as mixing method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120718 |