CN110256771A - It can be used for the TPV elastomer and preparation method thereof of cross-linking radiation - Google Patents
It can be used for the TPV elastomer and preparation method thereof of cross-linking radiation Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
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- C08L2207/04—Thermoplastic elastomer
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
- C08L2312/06—Crosslinking by radiation
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Abstract
The present invention relates to TPV elastomers that can be used for cross-linking radiation and preparation method thereof, component are as follows: synthetic rubber, polyolefin resin, metallocene-polyolefin resin, white oil, inorganic filler, crosslinking agent, assistant crosslinking agent, cross-linked accelerating agent for irradiation, antioxidant, lubricant, light stabilizer etc., this method are as follows: first by synthetic rubber, polyolefin resin, inorganic filler, mix in a high speed mixer after white oil, crosslinking agent, assistant crosslinking agent etc. be added obtain TPV particle through double screw extruder extruding pelletization；Add various auxiliary agents that the TPV that can be used for cross-linking radiation is made through double screw extruder extruding pelletization after mixing in a high speed mixer TPV particle and metallocene-polyolefin resin, cross-linked accelerating agent for irradiation again.The TPV provided by the present invention that can be used for cross-linking radiation has preparation method simple, can improve the heat resistant and weatherability of TPV material by a relatively large margin, be of great significance to the application field for widening TPV elastomer.
Description
Technical field:
The present invention relates to thermoplastic elastic material technical field more particularly to a kind of TPV bullets that can be used for cross-linking radiation
Property body and preparation method thereof.
Background technique:
It between rubber and plastics is a kind of composite structured high-performance material that thermoplastic elastomer (TPE), which is physical property,
Material, it had not only had the elasticity of rubber, but also the workability with plastics.One new " raw material of industry system " is constituted, by people
Referred to as " third generation rubber ".It is known as TPV (Thermoplastic by elastomer prepared by substrate of ethylene propylene diene rubber
Vulcanization), because Technology of Dynamic Vulcanized obtains continuous phase and dispersed phase formation three-dimensional network shape island structure in system
Name.Ethylene propylene diene rubber after vulcanization is evenly distributed in plastics phase with micron-sized particle, possesses its own at normal temperature
The physical property and functional character of thermoset rubber possess the high fluidity and reprocessabilty of thermoplastic at high temperature,
So that the features such as product possesses processing and forming simplicity, and material is Ke Xunhuanliyong, cost performance is high, be now widely used for automobile work
The fields such as industry, building materials, electronic apparatus, health care and consumer appliance.
Such as a kind of high-performance dynamic vulcanization thermoplastic is disclosed in the Chinese patent application No. is CN201410220053
The component and proportion of composition described in property method for producing elastomers are as follows: 30~50 parts of ethylene propylene diene rubber, polypropylene 20~60
Part, 10~60 parts of rubber oil, 5~15 parts of filler, 0.2~2.0 part of crosslinking agent, 0.2~2 part of cross-linking aid.The invention this method
The elastomer produced has the characteristics that oil resistivity is excellent, permanent compression set is low, and is also applicable in equipment in technique
Extensively, the advantages that preparation process is simple.
Although thermoplastic elastic material all shows excellent performance in all various aspects, due to itself being still thermoplastic
Property material, deformation can be melted after heated, so thermoplastic elastomer (TPE) still has a certain distance, such as automobile compared with thermoset rubber
Engine perimeter seal, under long term high temperature using be easily deformed, aging, so needing to mention in some Special use environment
High temperature resistant, the resistance to ag(e)ing of high thermoplasticity elastomeric material.It is disclosed in application No. is the Chinese patent of CN 201710325918
The component and proportion of a kind of 125 DEG C of charging pile compositions described in TPE protective cover material and preparation method thereof of cross-linking radiation are SEBS
15~30 parts of saturation type polystyrene elastomers, 13~30 parts of metallocene-polyolefin resin, TPV dynamic crosslinking oil resistant modifying agent 3
~8 parts, 35~50 parts of P-N type fire retardant, 5~10 parts of polyolefin elastomer, 10~25 parts of white oil, 3~5 parts of talcum powder, toner
It is 0.1~2 part, 0.5~2 part of cross-linking radiation sensitizer, 0.1~0.5 part of primary antioxidant, 0.1~0.5 part of auxiliary antioxidant, organic
1.5~2.5 parts of silicone lubricant.The invention is to have the heat resistance of charging pile TPE protective cover material after cross-linking radiation certain
It is promoted, reaches the requirement that heat extends≤175%.
The TPE performance after cross-linking radiation, which truly has, above is promoted, but because TPE is with styrene block copolymers
It (SEBS) is the elastomeric material of substrate preparation, SEBS is thermoplastic material, itself does not have chemical crosslinking structure, wherein serving as
The styrene segment for being physical crosslinking point can melt heated as plastic material, be easily deformed so as to cause material, lose use
Value.So TPE still cannot be greatly improved even if adding metallocene-polyolefin resin into TPE material carries out cross-linking radiation
The heatproof and weatherability of material.
Summary of the invention:
The present invention provides a kind of TPV elastomers and preparation method thereof that can be used for cross-linking radiation, in dynamic vulcanization TPV bullet
Property body on the basis of, be added metallocene-polyolefin resin, cross-linked accelerating agent for irradiation be blended after carry out cross-linking radiation, mention by a relatively large margin
High use temperature, high temperature degradation resistance and the weatherability of TPV material.Its specific technical solution is as follows:
A kind of TPV elastomer can be used for cross-linking radiation, in parts by weight, including following components:
Preferably, the preferred tert-butylperoxy isopropyl carbonate of the crosslinking agent, cumyl peroxide or octyl phenol
One of urea formaldehyde or any number of combination, one of the preferred calcium carbonate of the inorganic filler, talcum powder or white carbon black or appoint
Meaning kind combination, one in the preferred diphenyl-methane maleimide of the assistant crosslinking agent, triisopropyl isocyanates or stannous chloride
Kind or any number of combination.
Preferably, the preferred ethylene propylene diene rubber of synthetic rubber.
Preferably, the preferred polyethylene of the polyolefin resin, polypropylene or polyethylene and polyacrylic mixture.
Preferably, the preferred Mooney viscosity of ethylene propylene diene rubber is 20~130, ethylene contents are 50~75%, the
Three monomers are ethylidene norbornene or dicyclopentadiene and content is 4~20%.
Preferably, one kind of the preferred metallocene PE of metallocene-polyolefin resin, metallocene polypropylene or
Any number of combination.
Preferably, the preferred trimethylol-propane trimethacrylate of the cross-linked accelerating agent for irradiation, trihydroxy methyl third
One kind or any number of combination of alkane triacrylate, allyl methacrylate.
The present invention also provides a kind of TPV method for producing elastomers that can be used for cross-linking radiation, comprising the following steps:
A), appropriate ethylene propylene diene rubber, polyolefin resin, inorganic filler are weighed by component requirements, in a high speed mixer
After mixing, through double screw extruder extruding pelletization, intermediate is obtained；
B), crosslinking agent and assistant crosslinking agent is added in the resulting intermediate of step A), is uniformly mixed through high-speed mixer, double
Dynamic vulcanization is granulated in screw extruder, in granulation process, white oil is added by liquid spout, TPV elastomer is made
Grain；
C), by the resulting TPV elastomer particles of step B) and metallocene-polyolefin resin, cross-linked accelerating agent for irradiation in high speed
Antioxidant, lubricant, light stabilizer etc. is added to be made available after double screw extruder extruding pelletization in mixing machine after mixing
In the TPV elastomer of cross-linking radiation.
Further, the double screw extruder, process conditions are 160~220 DEG C of temperature, 200~320rpm of revolving speed.It will be upper
It states and can be used for the print that the TPV elastomer of cross-linking radiation uses vertical injection molding machine to be molded thickness 3mm under the conditions of 200 DEG C, measurement
The hardness of material prepares tensile bars using universal sampling machine, measures the tensile strength and elongation at break of material.
The beneficial effects of the present invention are: the TPV elastomer provided by the present invention that can be used for cross-linking radiation and its preparation side
Vulcanizing agent is added using the ethylene propylene diene rubber and polyolefin resin, inorganic filler that have excellent weather resistance in method after mixing, passes through
Double screw extruder dynamic vulcanization is granulated, and is filled with white oil in the process, makes evengranular point of ethylene propylene diene rubber of crosslinking
It is dispersed in polyolefin resin, adds metallocene-polyolefin resin, cross-linked accelerating agent for irradiation and carry out cross-linking radiation after mixing,
Being crosslinked the polyolefin resin of plastics phase is network structure, and reducing material is influenced by polyolefin is low-melting, is improved by a relatively large margin
The use temperature of material, high temperature degradation resistance and weatherability are easily worked closer to thermoset rubber, have widened TPV bullet
The application field of property body.
Specific embodiment:
The preferred embodiments of the present invention will be described in detail below, so that advantages and features of the invention can be easier to by this
Field personnel understanding, so as to make a clearer definition of the protection scope of the present invention.
Embodiment 1
A kind of TPV method for producing elastomers can be used for cross-linking radiation, in parts by weight composition of raw materials such as 1 institute of table
Show:
Table 1
Wherein: the ethylene propylene diene rubber Mooney viscosity is 20~45, and ethylene contents are 60~75%, and Third monomer is second
Pitching norbornene content is 4~8%.The polypropylene is Noblen, 2~4g/10min of melt index.It is described linear low
5~8g/10min of density polyethylene melt index.40 DEG C of kinematic viscosity of the naphthenic oil are 120~200.
Specific step is as follows:
A), ethylene propylene diene rubber, polyolefin resin, inorganic filler, partial lubrication agent are weighed by formula component, it is mixed in high speed
In conjunction machine after mixing, through double screw extruder extruding pelletization, intermediate 1 is obtained；
B), crosslinking agent and assistant crosslinking agent is added in the resulting intermediate 1 of step A), is uniformly mixed through high-speed mixer,
Dynamic vulcanization is granulated in double screw extruder, in granulation process, white oil is added by liquid spout, TPV elastomer is made
Particle 1.
C), by the resulting TPV elastomer particles of step B) and metallocene-polyolefin resin, cross-linked accelerating agent for irradiation, antioxygen
In a high speed mixer after mixing, being made after double screw extruder extruding pelletization can be used for for agent, lubricant, light stabilizer
The TPV elastomer 1 of cross-linking radiation.
Wherein: the double-screw extruder screw diameter is 75mm, and draw ratio 52, temperature controlling range process conditions are
160~200 DEG C of temperature, 200~320rpm of revolving speed.
The above-mentioned TPV elastomer that can be used for cross-linking radiation is molded thickness 3mm using vertical injection molding machine under the conditions of 200 DEG C
Print, be crosslinked through ultraviolet light irradiation cross-linking apparatus, irradiation dose 15M rad.Then the hardness for measuring material, using ten thousand
Energy sampling machine prepares tensile bars, measures the tensile strength and elongation at break of material.
Embodiment 2
A kind of TPV method for producing elastomers can be used for cross-linking radiation, in parts by weight composition of raw materials such as 2 institute of table
Show:
Table 2
Wherein: the ethylene propylene diene rubber Mooney viscosity is 65~75, and ethylene contents are 60~75%, and Third monomer is second
Pitching norbornene content is 4~8%.The polypropylene is Noblen, 2~4g/10min of melt index.It is described linear low
5~8g/10min of density polyethylene melt index.40 DEG C of kinematic viscosity of the naphthenic oil are 120~200.
Embodiment 2 is selected the ethylene propylene diene rubber of high Mooney viscosity replacement low mooney viscosity, is improved compared to embodiment 1
The performance of material selects antioxidant 1010 to replace antioxidant 264.
Specific preparation method, technical parameter are the same as embodiment 1.
Embodiment 3
A kind of TPV method for producing elastomers can be used for cross-linking radiation, in parts by weight composition of raw materials such as 3 institute of table
Show:
Table 3
| Raw material title | Parts by weight |
| Synthetic rubber ethylene propylene diene rubber | 45 |
| Polyolefin resin polypropylene | 20 |
| Metallocene-polyolefin resin linear low density polyethylene (LDPE) | 20 |
| Crosslinking agent octyl phenolic | 1 |
| Cross-linking aid stannous chloride | 0.25 |
| Cross-linked accelerating agent for irradiation allyl methacrylate | 0.8 |
| White oil naphthenic oil | 20 |
| Inorganic filler calcium carbonate | 10 |
| Antioxidant 1010 | 0.3 |
| Light stabilizer 531 | 0.3 |
| Lubricant polyethylene wax | 0.8 |
Wherein: the ethylene propylene diene rubber Mooney viscosity is 65~75, and ethylene contents are 60~75%, and Third monomer is second
Pitching norbornene content is 4~8%.The polypropylene is Noblen, 2~4g/10min of melt index.It is described linear low
5~8g/10min of density polyethylene melt index.40 DEG C of kinematic viscosity of the naphthenic oil are 120~200.
Embodiment 3 changes the type of crosslinking agent and cross-linking aid compared to embodiment 2, and changes cross-linking radiation rush
Into the type of agent.
Specific preparation method, technical parameter are the same as embodiment 1.
Embodiment 4
A kind of TPV method for producing elastomers can be used for cross-linking radiation, in parts by weight composition of raw materials such as 4 institute of table
Show:
Table 4
Wherein: the ethylene propylene diene rubber Mooney viscosity is 65~75, and ethylene contents are 60~75%, and Third monomer is second
Pitching norbornene content is 4~8%.The polypropylene is Noblen, 2~4g/10min of melt index.It is described linear low
3~6g/10min of density polyethylene melt index.40 DEG C of kinematic viscosity of the paraffin oil are 80~120.
Embodiment 4 changes linear low density polyethylene type compared to embodiment 2, and white oil selects paraffin oil to replace cycloalkanes
Oil selects the replacement of light stabilizer 326 531.
Specific preparation method, technical parameter are the same as embodiment 1.
Embodiment 1,2,3,4, which mainly illustrates, selects the different raw material trades mark to the shadow of product mechanical property and ageing-resistant performance
It rings, performance is compared, the results are shown in Table 5:
Table 5
As comparison it is found that material physical property made from the ethylene propylene diene rubber for selecting Mooney viscosity high is more preferable, and hands over
It is good that the group of connection agent and cross-linking aid is combined into tert-butylperoxy isopropyl carbonate, diphenyl-methane maleimide vulcanization effect, makes
Use trimethylol-propane trimethacrylate as cross-linked accelerating agent for irradiation, paraffin oil as filling oil, antioxidant 1010, light
Stabilizer 326, property retention rate of the material after hot air aging, light aging obtained is relatively high after being irradiated.
Embodiment 5
A kind of TPV method for producing elastomers can be used for cross-linking radiation, in parts by weight composition of raw materials such as 6 institute of table
Show:
Table 6
Wherein: the ethylene propylene diene rubber Mooney viscosity is 65~75, and ethylene contents are 60~75%, and Third monomer is second
Pitching norbornene content is 4~8%.The polypropylene is Noblen, 2~4g/10min of melt index.It is described linear low
3~6g/10min of density polyethylene melt index.40 DEG C of kinematic viscosity of the paraffin oil are 80~120.
Embodiment 5 reduces polyolefin resin number compared to embodiment 4, and increases metallocene-polyolefin resin, white oil
Number.
Specific preparation method, technical parameter are the same as embodiment 1.
Embodiment 6
A kind of TPV method for producing elastomers can be used for cross-linking radiation, in parts by weight composition of raw materials such as 7 institute of table
Show:
Table 7
Wherein: the ethylene propylene diene rubber Mooney viscosity is 65~75, and ethylene contents are 60~75%, and Third monomer is second
Pitching norbornene content is 4~8%.The polypropylene is Noblen, 2~4g/10min of melt index.It is described linear low
3~6g/10min of density polyethylene melt index.40 DEG C of kinematic viscosity of the paraffin oil are 80~120.
Embodiment 6 reduces ethylene propylene diene rubber number compared to embodiment 4, increases metallocene-polyolefin resin, irradiation is handed over
Join the number of promotor, white oil.
Specific preparation method, technical parameter are the same as embodiment 1.
Embodiment 7
A kind of TPV method for producing elastomers can be used for cross-linking radiation, in parts by weight composition of raw materials such as 8 institute of table
Show:
Table 8
Wherein: the ethylene propylene diene rubber Mooney viscosity is 65~75, and ethylene contents are 60~75%, and Third monomer is second
Pitching norbornene content is 4~8%.The polypropylene is Noblen, 2~4g/10min of melt index.It is described linear low
3~6g/10min of density polyethylene melt index.40 DEG C of kinematic viscosity of the paraffin oil are 80~120.
Embodiment 7 increases part of synthetic rubber, metallocene-polyolefin resin, cross-linked accelerating agent for irradiation compared to embodiment 4
Number.
Specific preparation method, technical parameter are the same as embodiment 1.
Embodiment 5,6,7 mainly illustrates in the case that the raw material trade mark is identical, proportion is different to product mechanical property and resistance to
The influence of ageing properties, performance is compared, and the results are shown in Table 9:
Table 9
By comparison it is found that material comprehensive performance is more excellent under embodiment 7 matches.
Embodiment 8
A kind of TPV method for producing elastomers can be used for cross-linking radiation, in parts by weight composition of raw materials such as table 10
It is shown:
Table 10
Wherein: the ethylene propylene diene rubber Mooney viscosity is 65~75, and ethylene contents are 60~75%, and Third monomer is second
Pitching norbornene content is 4~8%.The polypropylene is Noblen, 2~4g/10min of melt index.It is described linear low
3~6g/10min of density polyethylene melt index.40 DEG C of kinematic viscosity of the paraffin oil are 80~120.
Embodiment 8 compared to embodiment 7, increase crosslinking agent, white oil, inorganic filler number.
Specific preparation method, technical parameter are the same as embodiment 1.
Comparative example 1
General T PV method for producing elastomers, composition of raw materials is as shown in table 11 in parts by weight:
Table 11
Wherein: the ethylene propylene diene rubber Mooney viscosity is 65~75, and ethylene contents are 60~75%, and Third monomer is second
Pitching norbornene content is 4~8%.The polypropylene is Noblen, 2~4g/10min of melt index.The paraffin oil
40 DEG C of kinematic viscosity are 80~120.
Metallocene-polyolefin resin, cross-linked accelerating agent for irradiation is not added compared to embodiment 8 in comparative example 1.
Specific step is as follows:
A), appropriate ethylene propylene diene rubber, polyolefin resin, inorganic filler are weighed by component requirements, in a high speed mixer
After mixing, through double screw extruder extruding pelletization, intermediate 1 is obtained；
B), crosslinking agent and assistant crosslinking agent is added in the resulting intermediate 1 of step A), is uniformly mixed through high-speed mixer,
Dynamic vulcanization is granulated in double screw extruder, in granulation process, white oil is added by liquid spout, TPV elastomer is made
Particle 1.
Wherein: the double-screw extruder screw diameter is 75mm, and draw ratio 52, temperature controlling range process conditions are
160~200 DEG C of temperature, 200~320rpm of revolving speed.
Above-mentioned general T PV elastomer 1 is molded to the print of 3 mm of thickness using vertical injection molding machine under the conditions of 200 DEG C, so
The hardness for measuring material afterwards prepares tensile bars using universal sampling machine, measures the tensile strength and elongation at break of material.
Comparative example 1 is compared to embodiment 8, the step of not carrying out cross-linking radiation.
Comparative example 2
125 DEG C of charging pile preparation methods of TPE protective cover material of cross-linking radiation, in parts by weight composition of raw materials such as table 12
It is shown:
Table 12
Wherein: the synthetic rubber is SEBS 6154.The polypropylene is Noblen, 2~4g/ of melt index
10min.1~3g/10min of the high density polyethylene (HDPE) melt index.3~6g/ of the linear low density polyethylene melt index
10min.40 DEG C of kinematic viscosity of the paraffin oil are 80~120.
Specific step is as follows:
It is first first that SEBS saturation type polystyrene elastomers are oil-filled with white oil, then oil will be charged using mixed at high speed cylinder
SEBS saturation type polystyrene elastomers and polyolefin resin, metallocene-polyolefin resin, TPV elastomer, P-N type fire retardant,
Primary antioxidant, auxiliary antioxidant, talcum powder, cross-linked accelerating agent for irradiation, organo-silicic oil are mixed, then are squeezed by twin-screw
Granulation is blended in machine under 170~190 DEG C of technique out, cross-linking radiation 125 DEG C of charging piles TPE protective cover material finished product.
125 DEG C of charging piles of above-mentioned cross-linking radiation are molded thickness using vertical injection molding machine with TPE protective cover material under the conditions of 200 DEG C
The print for spending 3 mm, is crosslinked through ultraviolet light irradiation cross-linking apparatus, irradiation dose 15M rad.Then the hardness of material is measured,
Tensile bars are prepared using universal sampling machine, measure the tensile strength and elongation at break of material.
Embodiment 8 and comparative example 1,2 performance detection of comparative example are compared, as a result as shown in table 13:
Table 13
As can be seen from the table, cross-linking radiation TPV elastomer is compared with general T PV elastomer, cross-linking radiation TPE, mechanics
Performance is not decreased obviously, and after long and short period high temperature ageing and light aging, intensity and elongation at break conservation rate have
Apparent advantage improves TPV elastomer heatproof, weatherability by a relatively large margin.
Finally, it should be noted that above embodiments are only to illustrate the present invention and not limit technology described in the invention
Scheme；Therefore, although this specification is referring to above-mentioned each embodiment, the present invention has been described in detail, this
Field it is to be appreciated by one skilled in the art that still can modify to the present invention or equivalent replacement；And all do not depart from this
The technical solution and its improvement of the spirit and scope of invention, should all cover within the scope of the claims of the present invention.
Claims (9)
1. a kind of TPV elastomer that can be used for cross-linking radiation, which is characterized in that be made from the following raw materials in parts by weight:
2. the TPV elastomer according to claim 1 that can be used for cross-linking radiation, which is characterized in that the crosslinking agent was
Aoxidize one of isopropyl t-butyl carbonate, cumyl peroxide or octyl phenolic or a variety of combinations；The nothing
Machine filler is one of calcium carbonate, talcum powder or white carbon black or a variety of combinations；The assistant crosslinking agent is diphenyl-methane Malaysia
One of acid imide, triisopropyl isocyanates or stannous chloride or a variety of combinations.
3. the TPV elastomer according to claim 1 that can be used for cross-linking radiation, which is characterized in that the synthetic rubber is
Ethylene propylene diene rubber.
4. the TPV elastomer according to claim 3 that can be used for cross-linking radiation, which is characterized in that the ethylene-propylene-diene monomer
The Mooney viscosity of glue is 20~130, and ethylene contents are 50~75%, Third monomer be ethylidene norbornene or dicyclopentadiene and
Content is 4~20%.
5. the TPV elastomer according to claim 1 that can be used for cross-linking radiation, which is characterized in that the polyolefin resin
For polyethylene, polypropylene or polyethylene and polyacrylic mixture.
6. the TPV elastomer according to claim 1 that can be used for cross-linking radiation, which is characterized in that the metallocene polyene
Hydrocarbon resin is one or two kinds of combinations of metallocene PE, metallocene polypropylene.
7. the TPV elastomer according to claim 1 that can be used for cross-linking radiation, which is characterized in that the cross-linking radiation promotees
Into agent be trimethylol-propane trimethacrylate, trimethylolpropane trimethacrylate, allyl methacrylate one
Kind or a variety of combinations.
8. a kind of such as the described in any item TPV method for producing elastomers that can be used for cross-linking radiation of claim 1-7, feature
It is, includes the following steps:
A), appropriate ethylene propylene diene rubber, polyolefin resin, inorganic filler are weighed by component requirements, mixed in a high speed mixer
After uniformly, through double screw extruder extruding pelletization, intermediate is obtained；
B), crosslinking agent and assistant crosslinking agent is added in the resulting intermediate of step A), is uniformly mixed through high-speed mixer, in twin-screw
Dynamic vulcanization is granulated in extruder, in granulation process, white oil is added by liquid spout, TPV elastomer particles are made；
C), by the resulting TPV elastomer particles of step B) and metallocene-polyolefin resin, cross-linked accelerating agent for irradiation in mixed at high speed
In machine after mixing, adding antioxidant, lubricant, light stabilizer etc. to be made after double screw extruder extruding pelletization can be used for spoke
According to the TPV elastomer of crosslinking.
9. the TPV method for producing elastomers according to claim 8 that can be used for cross-linking radiation, which is characterized in that described
Double screw extruder process conditions are 160~220 DEG C of temperature, 200~320rpm of revolving speed；By the above-mentioned cross-linking radiation of can be used for
TPV elastomer is molded the print of thickness 3mm using vertical injection molding machine under the conditions of 200 DEG C, measures the hardness of material, use is omnipotent
Sampling machine prepares tensile bars, measures the tensile strength and elongation at break of material.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112194852A (en) * | 2020-09-22 | 2021-01-08 | 江苏金陵奥普特高分子材料有限公司 | TPV (thermoplastic vulcanizate) elastomer for high-puncture-strength rolled film and preparation method thereof |
| CN113248824A (en) * | 2021-04-14 | 2021-08-13 | 山东道恩高分子材料股份有限公司 | Preparation method of TPV (thermoplastic vulcanizate) tube material with high shear viscosity |
| CN113321874A (en) * | 2021-04-29 | 2021-08-31 | 焦作铁路电缆有限责任公司 | Ultraviolet irradiation crosslinked ethylene propylene rubber cable material and preparation method thereof |
| CN113956602A (en) * | 2021-10-08 | 2022-01-21 | 广州敬信高聚物科技有限公司 | Oil-resistant and heat-resistant insulating material and preparation method and application thereof |
| CN116063798A (en) * | 2022-12-29 | 2023-05-05 | 金发科技股份有限公司 | High Wen Kailian-resistant TPV material and preparation method and application thereof |
| CN116144096A (en) * | 2023-02-15 | 2023-05-23 | 河北中联银杉新材料有限公司 | Water-resistant insulating material composition, preparation method and application thereof |
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| CN112194852A (en) * | 2020-09-22 | 2021-01-08 | 江苏金陵奥普特高分子材料有限公司 | TPV (thermoplastic vulcanizate) elastomer for high-puncture-strength rolled film and preparation method thereof |
| CN113248824A (en) * | 2021-04-14 | 2021-08-13 | 山东道恩高分子材料股份有限公司 | Preparation method of TPV (thermoplastic vulcanizate) tube material with high shear viscosity |
| CN113321874A (en) * | 2021-04-29 | 2021-08-31 | 焦作铁路电缆有限责任公司 | Ultraviolet irradiation crosslinked ethylene propylene rubber cable material and preparation method thereof |
| CN113956602A (en) * | 2021-10-08 | 2022-01-21 | 广州敬信高聚物科技有限公司 | Oil-resistant and heat-resistant insulating material and preparation method and application thereof |
| CN116063798A (en) * | 2022-12-29 | 2023-05-05 | 金发科技股份有限公司 | High Wen Kailian-resistant TPV material and preparation method and application thereof |
| CN116144096A (en) * | 2023-02-15 | 2023-05-23 | 河北中联银杉新材料有限公司 | Water-resistant insulating material composition, preparation method and application thereof |
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Application publication date: 20190920 |