CN101845193A - Dynamically vulcanized styrene thermoplastic elastomer and preparation method thereof - Google Patents
Dynamically vulcanized styrene thermoplastic elastomer and preparation method thereof Download PDFInfo
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- CN101845193A CN101845193A CN200910048185A CN200910048185A CN101845193A CN 101845193 A CN101845193 A CN 101845193A CN 200910048185 A CN200910048185 A CN 200910048185A CN 200910048185 A CN200910048185 A CN 200910048185A CN 101845193 A CN101845193 A CN 101845193A
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Abstract
The invention relates to a dynamically vulcanized styrene thermoplastic elastomer and a preparation method thereof. The elastomer consists of the following components in percentage by weight: 20 to 70 percent of styrene segmented copolymer, 10 to 60 percent of rubber processing oil, 5 to 60 percent of polyolefin, 0 to 35 percent of inorganic mineral filler, 0.1 to 0.3 percent of antioxidant, 0.1 to 1 percent of crosslinking agent and 0.05 to 0.5 percent of auxiliary crosslinking agent. Compared with the prior art, the preparation technique of the invention is reasonable, the prepared elastomer has excellent comprehensive properties, the mechanical property, compression set resistance, abrasive resistance and the like of the elastomer are remarkably enhanced, meanwhile, the elastomer almost does not have residual smell, use is safe and environment-friendly, and the elastomer can be widely applied to the interior and the exterior decorations and other parts of automobiles and other more fields.
Description
Technical field
The present invention relates to styrene analog thermoplastic elastomer, relate in particular to styrene analog thermoplastic elastomer of a kind of dynamic vulcanization and preparation method thereof.
Background technology
Thermoplastic elastomer has the resilient flexible of rubber at normal temperatures, can therefore be with a wide range of applications as thermoplastics machine-shaping and recycling arbitrarily again under the temperature that is higher than its fusing point or softening temperature.The kind of thermoplastic elastomer is a lot, wherein styrene analog thermoplastic elastomer (or styrene block copolymer) is a most widely used class elastomerics, this elastomerics is that the polystyrene with vitreous state is hard section, polyhutadiene or isoprene with rubbery state are the segmented copolymer of soft section composition, because of it has splendid rebound resilience and surface touch, excellent weathering resistance, anti-ozone, winter hardiness, can repeatedly recycle and series of advantages such as the flexible adjustability of product and be widely used in automobile, building, sports goods, medical apparatus, electronic apparatus, in the fields such as articles for daily use.
Thermoplastic sulfurized rubber (TPV) is an analog thermoplastic elastomer of producing by dynamic vulcanization technology.Dynamic vulcanization is meant that dience rubber under fusion and the strong condition of shearing vulcanization reaction takes place, and is evenly dispersed in the noncrosslinking polyolefine crosslinked dience rubber particle.This class rubber is in the mechanical property and the compression tension set that have guaranteed also to have when material has processing of plastic the same excellence of vulcanized rubber.
At present, the Satoprene of business-like TPV such as AES company production
TM, DSM N. V. produces
Thermoplastic elastomer, the latter is that crosslinked EPDM rubber grain is dispersed in the blend in the crystalline polypropylene.Also there is some deficiency in the aspect to these rubber in that mechanical property, compression tension set, wear resistance, smell be residual etc., has limited their further use to a certain extent.
Summary of the invention
Purpose of the present invention is exactly the styrene analog thermoplastic elastomer and preparation method thereof that the dynamic vulcanization of a kind of excellent combination property, environmental protection safe in utilization is provided in order to overcome the defective that above-mentioned prior art exists.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of styrene analog thermoplastic elastomer of dynamic vulcanization is characterized in that, this elastomerics comprises the component of following weight content (wt%):
Styrenic block copolymer 20-70;
RUBBER PROCESS OIL 10-60;
Polyolefine 5-60;
Inorganic mineral filler 0-35;
Oxidation inhibitor 0.1-0.3;
Linking agent 0.1-1;
Additional crosslinker 0.05-0.5.
Described styrenic block copolymer is selected from one or more in styrene/ethylene-butylene/styrene block copolymer (SEBS), styrene/ethylene-propylene/styrene segmented copolymer (SEPS), the styrene/ethylene-ethylene-propylene/styrene block copolymer (SEEPS).
The number-average molecular weight of described styrenic block copolymer is 50,000 to 600,000, and cinnamic weight content is 20%～50%.
Described RUBBER PROCESS OIL is one or both the mixture in naphthenic oil and the paraffin oil.
The content of naphthenic hydrocarbon is 25wt%-70wt% in the described RUBBER PROCESS OIL.
Described polyolefine is a homopolymer polypropylene, polypropylene copolymer, or the mixture of homopolymer polypropylene and polypropylene copolymer, its melting index be 0.5-30g/10min (230 ℃ * 2.16kg).
Described inorganic mineral filler is selected from one or more in talcum powder, lime carbonate, calcium sulfate, kaolin, mica, silicon-dioxide, the wollastonite.
Described oxidation inhibitor is [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] tetramethylolmethane.
Described linking agent comprises 2,5-dimethyl-2,5-bis(t-butylperoxy) hexane, dicumyl peroxide or benzoyl peroxide; Described additional crosslinker is isocyanuric acid triallyl ester (TAIC).
A kind of process for preparing thermoplastic phenylethylene elastomer of dynamic vulcanization is characterized in that, this method may further comprise the steps:
(1) get the raw materials ready according to the component of following weight content (wt%):
Styrenic block copolymer resin 20-70
RUBBER PROCESS OIL 10-60
Polyolefine 5-60
Inorganic mineral filler 0-35
Oxidation inhibitor 0.1-0.3
Linking agent 0.1-1
Additional crosslinker 0.05-0.5;
(2) each component is joined in the high-speed mixer, under the speed that per minute 500-1000 changes, mixed 1-3 minute;
(3) mixture that thorough mixing is good put into length-to-diameter ratio greater than under the fused state, carry out the dynamic vulcanization reaction in 36: 1 the twin screw extruder and extrude, granulation, processing temperature is 190-230 ℃, the twin screw extruder rotating speed is 300 rev/mins, obtains the styrene analog thermoplastic elastomer of dynamic vulcanization.
RUBBER PROCESS OIL of the present invention is one or both the mixture in cycloparaffin series and the paraffinic RUBBER PROCESS OIL, and the content mass percent of naphthenic hydrocarbon is 25-70% in the RUBBER PROCESS OIL, preferred 35-50%, and do not contain aromatic hydrocarbon.
The twin screw extruder that the present invention uses adopt have strong shear screw combinations, the length-to-diameter ratio L/D of screw rod has guaranteed the abundant fusion of crosslink part and uncrosslinked system greater than 36: 1.
The invention provides a kind of novel styrenic thermoplastic elastomer TPS material, main component is styrene block copolymer SEBS (or SEPS, SEEPS), RUBBER PROCESS OIL and PP.
Styrene block copolymer SEBS (or SEPS, SEEPS) itself is a kind of thermoplastic elastomer, need not to vulcanize and promptly have splendid elasticity and thermoplasticity, but exist shortcomings such as thermotolerance, anti-permanent compression set difference and wear resistance deficiency, limited its application on some products.The present invention introduces cross-linking system, and system part styrene block copolymer takes place crosslinked and is dispersed in the system that polyolefine and uncrosslinked hydrogenated styrene block copolymers etc. form with the form of rubber grain under strong effect of shearing in the process that heat is mixed.Because the existence of this process makes elastomeric mechanical property, compression tension set and wear resistance that by a relatively large margin raising all be arranged.Simultaneously, unhydrided pair of key of styrene block copolymer also further eliminated in crosslinked action, improved the weathering resistance and the light stability of product.In addition, because the crosslinked action of part only takes place, the consumption of linking agent is few, and product does not have residual smell substantially.
Compared with prior art, preparation technology of the present invention is reasonable, the elastomerics that makes has the excellent comprehensive performance, its mechanical property, compression tension set and wear resistance etc. evenly obviously improve, simultaneously basic noresidue smell, safe in utilization, environmental protection can be widely used in the automobile component such as exterior trim and other widely in the field.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
Among following embodiment 1～embodiment 5: SEBS is the Kraton G that Polymer Company is risen by section; The 100# white oil is the naphthenic oil of Kelamayi, Xinjiang petrochemical industry, and its naphthenic hydrocarbon weight content is 45%; PPY600 is that melting index is (230 ℃ * 2.16kg) homo-polypropylene of 6g/10min; PPM800E is that melting index is (230 ℃ * 2.16kg) Co-polypropylene of 8g/10min; Linking agent is 2,5 dimethyl-2,5-bis(t-butylperoxy) hexane;
Embodiment 1
A kind of process for preparing thermoplastic phenylethylene elastomer of dynamic vulcanization, this method may further comprise the steps:
(1) get the raw materials ready according to the component of following weight content (wt%):
SEBS1651 35
100# white oil 39
PPY600 19
Talcum powder (1500 order) 6.7
Antioxidant 1010 0.14
Linking agent 0.1
Additional crosslinker TAIC 0.06;
(2) each component is joined in the high-speed mixer, high-speed mixing 1-3 minute, the mixing machine speed of mainshaft was 700r/min;
(3) mixture that thorough mixing is good put into length-to-diameter ratio greater than under the fused state, carry out the dynamic vulcanization reaction in 36: 1 the twin screw extruder and extrude, granulation, processing temperature is 190-230 ℃, the twin screw extruder rotating speed is 300 rev/mins, obtains the styrene analog thermoplastic elastomer of dynamic vulcanization.
Embodiment 2
A kind of process for preparing thermoplastic phenylethylene elastomer of dynamic vulcanization, this method may further comprise the steps:
(1) get the raw materials ready according to the component of following weight content (wt%):
SEBS1651 34.8
100# white oil 39
PPM800E 19.9
Talcum powder (1500 order) 6
Antioxidant 1010 0.14
Linking agent 0.1
Additional crosslinker TAIC 0.06;
Step (2)～step (3) is identical with embodiment 1.
Embodiment 3
A kind of process for preparing thermoplastic phenylethylene elastomer of dynamic vulcanization, this method may further comprise the steps:
(1) get the raw materials ready according to the component of following weight content (wt%):
SEBS1654 34.8
100# white oil 39
PPY600 19.9
Talcum powder (1500 order) 6
Antioxidant 1010 0.14
Linking agent 0.1
Additional crosslinker TAIC 0.06
Step (2)～step (3) is identical with embodiment 1.
Embodiment 4
A kind of process for preparing thermoplastic phenylethylene elastomer of dynamic vulcanization, this method may further comprise the steps:
(1) get the raw materials ready according to the component of following weight content (wt%):
SEBS1654 34.8
100# white oil 34
PPM800E 24.9
Talcum powder (1500 order) 6
Antioxidant 1010 0.14
Linking agent 0.1
Additional crosslinker TAIC 0.06
Step (2)～step (3) is identical with embodiment 1.
Embodiment 5
A kind of process for preparing thermoplastic phenylethylene elastomer of dynamic vulcanization, this method may further comprise the steps:
(1) get the raw materials ready according to the component of following weight content (wt%):
SEBS1651 11.8
SEBS1650 17
100# white oil 34
PPY600 30.9
Talcum powder (1500 order) 6
Antioxidant 1010 0.14
Linking agent 0.1
Additional crosslinker TAIC 0.06
Step (2)～step (3) is identical with embodiment 1.
The product main performance index of embodiment 1～embodiment 5 is as shown in the table:
Embodiment 6
A kind of process for preparing thermoplastic phenylethylene elastomer of dynamic vulcanization, this method may further comprise the steps:
(1) get the raw materials ready according to the component of following weight (kilogram):
Styrenic block copolymer resin 40
RUBBER PROCESS OIL 40
Polyolefine 15
Inorganic mineral filler 4.5
Oxidation inhibitor 0.1
Linking agent 0.3
Additional crosslinker 0.1
Described styrenic block copolymer is that molecular weight is 200,000 styrene/ethylene-propylene/styrene segmented copolymer (SEPS), and cinnamic weight content is 30%; Described RUBBER PROCESS OIL is a naphthenic oil, and wherein the content of naphthenic hydrocarbon is 40wt%; Described polyolefine is the mixture of homopolymer polypropylene PPY600 and polypropylene copolymer PPM800E, and the two weight ratio is 1: 1, its melting index be 10g/10min (230 ℃ * 2.16kg); Described inorganic mineral filler is a lime carbonate; Described oxidation inhibitor is [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] tetramethylolmethane; Described linking agent is 2,5-dimethyl-2,5-bis(t-butylperoxy) hexane, dicumyl peroxide or benzoyl peroxide; Described additional crosslinker is isocyanuric acid triallyl ester (TAIC);
(2) each component is joined in the high-speed mixer, high-speed mixing 1 minute, the mixing machine speed of mainshaft are 500r/min;
(3) mixture that thorough mixing is good put into major diameter be under the fused state, carry out the dynamic vulcanization reaction in 40: 1 the twin screw extruder and extrude, granulation, processing temperature is 190 ℃, the twin screw extruder rotating speed is 300 rev/mins, obtains the styrene analog thermoplastic elastomer of dynamic vulcanization.
Embodiment 7
A kind of process for preparing thermoplastic phenylethylene elastomer of dynamic vulcanization, this method may further comprise the steps:
(1) get the raw materials ready according to the component of following weight (kilogram):
Styrenic block copolymer resin 30
RUBBER PROCESS OIL 20
Polyolefine 40
Inorganic mineral filler 8.9
Oxidation inhibitor 0.1
Linking agent 0.6
Additional crosslinker 0.4
Described styrenic block copolymer is that molecular weight is styrene/ethylene-ethylene-propylene/styrene block copolymer (SEEPS) of 400,000, and cinnamic weight content is 40%; Described RUBBER PROCESS OIL is a naphthenic oil, and wherein the content of naphthenic hydrocarbon is 60wt%; Described polyolefine is that melting index is (230 ℃ * 2.16kg) homopolymer polypropylene of 15g/10min; Described inorganic mineral filler is calcium sulfate and kaolin, and the two weight ratio is 2: 1; Described oxidation inhibitor is [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] tetramethylolmethane; Described linking agent is 2,5-dimethyl-2,5-bis(t-butylperoxy) hexane, dicumyl peroxide or benzoyl peroxide; Described additional crosslinker is isocyanuric acid triallyl ester (TAIC);
(2) each component is joined in the high-speed mixer, high-speed mixing 3 minutes, the mixing machine speed of mainshaft are 1000r/min;
(3) mixture that thorough mixing is good put into major diameter be under the fused state, carry out the dynamic vulcanization reaction in 40: 1 the twin screw extruder and extrude, granulation, processing temperature is 230 ℃, the twin screw extruder rotating speed is 300 rev/mins, obtains the styrene analog thermoplastic elastomer of dynamic vulcanization.
Embodiment 8
A kind of process for preparing thermoplastic phenylethylene elastomer of dynamic vulcanization, this method may further comprise the steps:
(1) get the raw materials ready according to the component of following weight (kilogram):
Styrenic block copolymer resin 40
RUBBER PROCESS OIL 40
Polyolefine 12.8
Inorganic mineral filler 6
Oxidation inhibitor 0.1
Linking agent 0.8
Additional crosslinker 0.3
Described styrenic block copolymer is that molecular weight is styrene/ethylene-butylene/styrene block copolymer (SEBS) of 300,000, and cinnamic weight content is 20%; Described RUBBER PROCESS OIL is a paraffin oil, and wherein the content of naphthenic hydrocarbon is 25wt%; Described polyolefine is that melting index is (230 ℃ * 2.16kg) polypropylene copolymer of 20g/10min; Described inorganic mineral filler is a mica; Described oxidation inhibitor is [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] tetramethylolmethane; Described linking agent is 2,5-dimethyl-2,5-bis(t-butylperoxy) hexane, dicumyl peroxide or benzoyl peroxide; Described additional crosslinker is isocyanuric acid triallyl ester (TAIC);
(2) each component is joined in the high-speed mixer, high-speed mixing 2 minutes, the mixing machine speed of mainshaft are 700r/min;
(3) mixture that thorough mixing is good put into length-to-diameter ratio be under the fused state, carry out the dynamic vulcanization reaction in 40: 1 the twin screw extruder and extrude, granulation, processing temperature is 210 ℃, the twin screw extruder rotating speed is 300 rev/mins, obtains the styrene analog thermoplastic elastomer of dynamic vulcanization.
Embodiment 9
A kind of process for preparing thermoplastic phenylethylene elastomer of dynamic vulcanization, this method may further comprise the steps:
(1) get the raw materials ready according to the component of following weight (kilogram):
Styrenic block copolymer resin 20
RUBBER PROCESS OIL 60
Polyolefine 19.15
Oxidation inhibitor 0.3
Linking agent 0.5
Additional crosslinker 0.05
The mixture that described styrenic block copolymer is that molecular weight is 250,000, styrene content weight is styrene/ethylene-butylene/styrene block copolymer (SEBS) of 20% and molecular weight is 300,000, the vinylbenzene weight content is styrene/ethylene-propylene/styrene segmented copolymer (SEPS) of 50%, the two weight ratio is 2: 1; Described RUBBER PROCESS OIL is a naphthenic oil, and wherein the content of naphthenic hydrocarbon is 70wt%; Described polyolefine is that melting index is (230 ℃ * 2.16kg) homopolymer polypropylene of 0.5g/10min; Described oxidation inhibitor is [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] tetramethylolmethane; Described linking agent is 2,5-dimethyl-2,5-bis(t-butylperoxy) hexane, dicumyl peroxide or benzoyl peroxide; Described additional crosslinker is isocyanuric acid triallyl ester (TAIC);
(2) each component is joined in the high-speed mixer, high-speed mixing 1-3 minute, the mixing machine speed of mainshaft was 700r/min;
(3) mixture that thorough mixing is good put into major diameter be under the fused state, carry out the dynamic vulcanization reaction in 36: 1 the twin screw extruder and extrude, granulation, processing temperature is 190-230 ℃, the twin screw extruder rotating speed is 300 rev/mins, obtains the styrene analog thermoplastic elastomer of dynamic vulcanization.
Embodiment 10
A kind of process for preparing thermoplastic phenylethylene elastomer of dynamic vulcanization, this method may further comprise the steps:
(1) get the raw materials ready according to the component of following weight (kilogram):
Styrenic block copolymer resin 70
RUBBER PROCESS OIL 10
Polyolefine 8.3
Inorganic mineral filler 10
Oxidation inhibitor 0.2
Linking agent 1
Additional crosslinker 0.5
The number-average molecular weight of described styrenic block copolymer is 50,000, and cinnamic weight content is 20%; Described RUBBER PROCESS OIL is a paraffin oil; Described polyolefine is that melting index is (230 ℃ * 2.16kg) polypropylene copolymer of 30g/10min; Described inorganic mineral filler is in silicon-dioxide and the wollastonite, and the two weight ratio is 1: 2; Described oxidation inhibitor is [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] tetramethylolmethane; Described linking agent is 2,5-dimethyl-2,5-bis(t-butylperoxy) hexane, dicumyl peroxide or benzoyl peroxide; Described additional crosslinker is isocyanuric acid triallyl ester (TAIC);
(2) each component is joined in the high-speed mixer, high-speed mixing 1-3 minute, the mixing machine speed of mainshaft was 700r/min;
(3) mixture that thorough mixing is good put into length-to-diameter ratio be under the fused state, carry out the dynamic vulcanization reaction in 36: 1 the twin screw extruder and extrude, granulation, processing temperature is 190-230 ℃, the twin screw extruder rotating speed is 300 rev/mins, obtains the styrene analog thermoplastic elastomer of dynamic vulcanization.
Embodiment 11
A kind of process for preparing thermoplastic phenylethylene elastomer of dynamic vulcanization, this method may further comprise the steps:
(1) get the raw materials ready according to the component of following weight (kilogram):
Styrenic block copolymer resin 20
RUBBER PROCESS OIL 10
Polyolefine 60
Inorganic mineral filler 9.6
Oxidation inhibitor 0.1
Linking agent 0.1
Additional crosslinker 0.2
The number-average molecular weight of described styrenic block copolymer is 600,000, and cinnamic weight content is 50%; Described RUBBER PROCESS OIL is the mixture of naphthenic oil and paraffin oil, and the two weight ratio is 1: 1; Described polyolefine is homopolymer polypropylene PPY600; Described inorganic mineral filler is a talcum powder; Described oxidation inhibitor is [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] tetramethylolmethane; Described linking agent is 2,5-dimethyl-2,5-bis(t-butylperoxy) hexane, dicumyl peroxide or benzoyl peroxide; Described additional crosslinker is isocyanuric acid triallyl ester (TAIC);
(2) each component is joined in the high-speed mixer, high-speed mixing 1-3 minute, the mixing machine speed of mainshaft was 700r/min;
(3) mixture that thorough mixing is good put into major diameter be under the fused state, carry out the dynamic vulcanization reaction in 40: 1 the twin screw extruder and extrude, granulation, processing temperature is 190-230 ℃, the twin screw extruder rotating speed is 300 rev/mins, obtains the styrene analog thermoplastic elastomer of dynamic vulcanization.
Claims (10)
1. the styrene analog thermoplastic elastomer of a dynamic vulcanization is characterized in that, this elastomerics comprises the component of following weight content (wt%):
Styrenic block copolymer 20-70;
RUBBER PROCESS OIL 10-60;
Polyolefine 5-60;
Inorganic mineral filler 0-35;
Oxidation inhibitor 0.1-0.3;
Linking agent 0.1-1;
Additional crosslinker 0.05-0.5.
2. the styrene analog thermoplastic elastomer of dynamic vulcanization according to claim 1, it is characterized in that described styrenic block copolymer is selected from one or more in styrene/ethylene-butylene/styrene block copolymer (SEBS), styrene/ethylene-propylene/styrene segmented copolymer (SEPS), the styrene/ethylene-ethylene-propylene/styrene block copolymer (SEEPS).
3. the styrene analog thermoplastic elastomer of dynamic vulcanization according to claim 2 is characterized in that, the number-average molecular weight of described styrenic block copolymer is 50,000 to 600,000, and cinnamic weight content is 20%～50%.
4. the styrene analog thermoplastic elastomer of dynamic vulcanization according to claim 1 is characterized in that, described RUBBER PROCESS OIL is one or both the mixture in naphthenic oil and the paraffin oil.
5. the styrene analog thermoplastic elastomer of dynamic vulcanization according to claim 4 is characterized in that, the content of naphthenic hydrocarbon is 25wt%-70wt% in the described RUBBER PROCESS OIL.
6. the styrene analog thermoplastic elastomer of dynamic vulcanization according to claim 1, it is characterized in that, described polyolefine is a homopolymer polypropylene, polypropylene copolymer, or the mixture of homopolymer polypropylene and polypropylene copolymer, its melting index be 0.5-30g/10min (230 ℃ * 2.16kg).
7. the styrene analog thermoplastic elastomer of dynamic vulcanization according to claim 1 is characterized in that, described inorganic mineral filler is selected from one or more in talcum powder, lime carbonate, calcium sulfate, kaolin, mica, silicon-dioxide, the wollastonite.
8. the styrene analog thermoplastic elastomer of dynamic vulcanization according to claim 1 is characterized in that, described oxidation inhibitor is [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] tetramethylolmethane.
9. the styrene analog thermoplastic elastomer of dynamic vulcanization according to claim 1 is characterized in that, described linking agent comprises 2,5-dimethyl-2,5-bis(t-butylperoxy) hexane, dicumyl peroxide or benzoyl peroxide; Described additional crosslinker is isocyanuric acid triallyl ester (TAIC).
10. the process for preparing thermoplastic phenylethylene elastomer of a dynamic vulcanization as claimed in claim 1 is characterized in that, this method may further comprise the steps:
(1) get the raw materials ready according to the component of following weight content (wt%):
Styrenic block copolymer resin 20-70
RUBBER PROCESS OIL 10-60
Polyolefine 5-60
Inorganic mineral filler 0-35
Oxidation inhibitor 0.1-0.3
Linking agent 0.1-1
Additional crosslinker 0.05-0.5;
(2) each component is joined in the high-speed mixer, under the speed that per minute 500-1000 changes, mixed 1-3 minute;
(3) mixture that thorough mixing is good put into length-to-diameter ratio greater than under the fused state, carry out the dynamic vulcanization reaction in 36: 1 the twin screw extruder and extrude, granulation, processing temperature is 190-230 ℃, the twin screw extruder rotating speed is 300 rev/mins, obtains the styrene analog thermoplastic elastomer of dynamic vulcanization.
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| 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 |
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| CN104817805A (en) * | 2015-04-16 | 2015-08-05 | 东莞市利鸿塑胶有限公司 | Thermoplastic elastomer material for industrial/medical caster |
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| EP3339371A4 (en) * | 2015-08-19 | 2018-08-29 | Denka Company Limited | Resin composition for organ models |
| US10836897B2 (en) | 2015-08-19 | 2020-11-17 | Denka Company Limited | Resin composition for organ models |
| CN106009714A (en) * | 2016-05-19 | 2016-10-12 | 广州喜马塑料科技有限公司 | Thermoplastic elastomer composition, resin, preparation method thereof and application thereof in manufacturing runways and courts |
| CN106009714B (en) * | 2016-05-19 | 2017-09-29 | 广州喜马塑料科技有限公司 | Thermoplastic elastomer composition, resin, preparation method thereof and application thereof in manufacturing runways and courts |
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| CN111675876A (en) * | 2020-07-09 | 2020-09-18 | 江阴市洸洋塑业有限公司 | Preparation method of elastomer material |
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| CN116042040B (en) * | 2022-12-29 | 2023-11-21 | 云南煤化工应用技术研究院有限公司 | Laser ablation engraving line sealant |
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