CN107151412A - It is a kind of to be applicable low-odor thermoplastic elastomer of automotive trim and preparation method thereof - Google Patents

It is a kind of to be applicable low-odor thermoplastic elastomer of automotive trim and preparation method thereof Download PDF

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Publication number
CN107151412A
CN107151412A CN201710356330.8A CN201710356330A CN107151412A CN 107151412 A CN107151412 A CN 107151412A CN 201710356330 A CN201710356330 A CN 201710356330A CN 107151412 A CN107151412 A CN 107151412A
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parts
activated carbon
low
automotive trim
polypropylene
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韦鹏飞
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Jinling Institute of Technology
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Jinling Institute of Technology
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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
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
    • C08L53/025—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2353/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2353/02—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/10—Homopolymers or copolymers of propene
    • C08J2423/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2453/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2453/02—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
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    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
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    • C08K2201/006—Additives being defined by their surface area
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    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Abstract

Present invention offer is a kind of to be applicable low-odor thermoplastic elastomer of automotive trim and preparation method thereof, includes the raw material components of following parts by weight meter：25 30 parts of SEBS, 10 20 parts of mineral oil, 15 30 parts of calcium carbonate, 25 35 parts of polypropylene, 0.5 1 parts of antioxidant, 0.5 part of color masterbatch, 0.5 1 parts of molecular sieve, 0.5 1 parts of activated carbon；The polypropylene is metallocene random polypropylene, and the activated carbon is coconut husk class activated carbon；Its preparation method is that polypropylene, calcium carbonate, molecular sieve and activated carbon made into master batch in advance, then is granulated with the blending extrusion such as SEBS, antioxidant.Thermoplastic elastomer (TPE) smell prepared by the present invention is low, and tensile resistance is good, heat-resisting can deposit, light aging resisting.

Description

It is a kind of to be applicable low-odor thermoplastic elastomer of automotive trim and preparation method thereof
Technical field
The invention belongs to be applicable the thermoplastic elastomer (TPE) technical field of automotive trim, and in particular to a kind of applicable automotive trim Low-odor thermoplastic elastomer and preparation method thereof.
Background technology
Automotive trim system is the important component of body of a motor car, and the design efforts would of interior decoration system accounts for car moulding and set More than the 60% of workload is counted, car conour is exceeded well over, is one of most important part of vehicle body.Automotive trim is primarily referred to as automobile Automobile product used in internal modifications, is related to the every aspect of automotive interior, such as automobile steering wheel cover, automobile cushion, vapour Car foot pad, containing box etc..
As people are to the attention of environment and the development of automobile industry, the examination criteria of automotive interior environment is also more and more completeer Kind, particularly stringent especially for automotive upholstery, some environmental requirements such as total carbon, smell, condensation, formaldehyde have all been included in pressure mark In standard.Smell is that automotive interior environment is most intuitively showed, total carbon, condensation and formaldehyde can be by the later stage process of material at Reason, smell is then the attribute that material is carried in itself.Due to the relation of filling oil and filler in current butadiene-styrene rubber system, substantially Certain niff is all carried, the requirement of main engine plants is extremely difficult to, the polypropylene material of general technology production also carries one A little smells, can add eliminating smell agent reduction smell at present in production, but effect is not notable.
A kind of TPE material and preparation method (Application No. available for automotive trim of application for a patent for invention 201510047140.9) white oils of SEBS, 100-200 parts by weight of material including 100-200 parts by weight, 20-80 parts by weight Polypropylene, the filler of 30-100 parts by weight, the stabilizer of 0.2-0.4 parts by weight.Its method is under conditions of 50-80 DEG C, first SEBS and white oil are mixed at a slow speed after 20-30 minutes in mixer, then 20-30 points are mixed together with other raw materials, auxiliary agent Clock, is then added in double screw extruder；Simultaneously liquid entrainer is added before region of no pressure with melting measuring pump at the 3rd area；So After carry out vacuum exhaust, liquid entrainer is thoroughly drained.It is the TPE material high temperature resistant low temperature of the patent application, wear-resisting, but gas Taste is larger.
Therefore it is badly in need of that a kind of smell is low, tensile resistance is good, heat-resisting can deposit, light aging resisting is applicable the low of automotive trim Odor thermoplastic elastomer and preparation method thereof.
The content of the invention
The purpose of the present invention is to overcome that of the prior art not enough there is provided a kind of low-odor thermoplastic for being applicable automotive trim Elastomer and preparation method thereof.
The invention provides following technical scheme：
A kind of low-odor thermoplastic elastomer for being applicable automotive trim, includes the raw material components of following parts by weight meter：25-30 The SEBS of part, 10-20 parts of mineral oil, 15-30 parts of calcium carbonate, 25-35 parts of polypropylene, 0.5-1 parts of antioxidant, 0.5 The color masterbatch of part, 0.5-1 parts of molecular sieve, 0.5-1 parts of activated carbon；
The polypropylene is metallocene random polypropylene, and the activated carbon is coconut husk class activated carbon.
It is preferred that, it includes the raw material components of following parts by weight meter：27-30 parts of SEBS, 10-20 parts of mineral oil, 20- 27 parts of calcium carbonate, 27-32 parts of polypropylene, 0.5-1 parts of antioxidant, 0.5 part of color masterbatch, 0.5-1 parts of molecular sieve, 0.5- 1 part of activated carbon.
It is preferred that, the melt index of the metallocene random polypropylene is 9-10g/min.
It is preferred that, kinematic viscosity at 40 DEG C of the mineral oil is 74-80mm2/s。
It is preferred that, the molecular sieve is the calcium type alumino-silicate in 0.8nm apertures, and the molecular sieve in the aperture is in extrusion The smell of other materials can be greatly reduced.
It is preferred that, the iodine number amount of the activated carbon is 700-1000mg/g, and specific surface area is 800-1500m2/ g, the iodine number The activated carbon of amount and specific surface area can absorb substantial amounts of bad smell,.
It is preferred that, the calcium carbonate is superfine activated filler, and mesh number is 8000-10000 mesh.
It is preferred that, the antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and three The component thing of [2,4- di-tert-butyl-phenyl] phosphite ester, both weight part ratios are 2 ﹕ 1.
A kind of low-odor thermoplastic method for producing elastomers for being applicable automotive trim, comprises the following steps：
S1：Calcium carbonate, polypropylene, molecular sieve and activated carbon are made into master batch by mixing after formula ratio accurate weighing；
S2：Mixed at high speed will be put into after other raw material components accurate weighings of the step S1 master batches obtained and formula ratio Machine, addition is the 0.6-0.7 of high-speed mixer volume, is mixed 6-8 minutes；
S3：The material input double screw extruder being well mixed in step S2 is subjected to melting extrusion, the twin-screw is squeezed The temperature in the areas of Chu Ji mono- to 5th area is set to 170 DEG C, and the temperature in 6th area to tenth area is set as 180 DEG C；
S4：Extrude tie rod and pass through water cooling, pelletizing and drying, finally packed.
It is preferred that, the rotating speed of double screw extruder is 350-370r/min in the step S3, and pelletizing speed is 21- 31HZ, vacuum is less than 0.6MPa.
The beneficial effects of the invention are as follows：
(1) the metallocene random polypropylene in the present invention is the polypropylene using metallocene as Catalyst Production, catalyst Residual is few, and the polypropylene smell produced is light, therefore the odorous low advantage of obtained thermoplastic elastomers；The present invention is used Coconut husk class activated carbon, iodine number amount and specific surface area are larger, can absorb substantial amounts of bad smell, and the fruit tree of coconut husk institute's band in itself Fragrance can also improve the scoring of smell；The smell of material can be greatly reduced in molecular sieve in extrusion.
(2) polypropylene, calcium carbonate, molecular sieve, activated carbon are made master batch by the present invention in advance, then with SEBS, antioxidant etc. Blending extrusion is granulated, and molecular sieve and coconut husk class activated carbon are fully contacted with other raw materials in extrusion, absorbs the gas of raw material Taste, is greatly reduced smell, meets automotive trim requirement.
(3) each area's temperature and velocity of rotation are conducive to being sufficiently mixed for raw material used in double screw extruder of the present invention And reaction, the good thermoplastic elastic material of tensile resistance can be produced.
(4) not only smell is low for the thermoplastic elastomer (TPE) that the present invention is prepared, and with excellent mechanical property, it is heat-resisting to deposit Put, light aging resisting.
Embodiment
Embodiment 1
A kind of low-odor thermoplastic elastomer for being applicable automotive trim, includes the raw material components of following parts by weight meter：SEBS 27 parts, 16 parts of mineral oil, 27 parts of calcium carbonate, 27 parts of polypropylene, 0.5 part of antioxidant, 0.5 part of color masterbatch, 1 part of molecular sieve, activated carbon 1 Part.
In the present embodiment, polypropylene is metallocene random polypropylene, and melt index is 9g/min.
In the present embodiment, activated carbon is coconut husk class activated carbon, and iodine number amount is 700-1000mg/g, and specific surface area is 800- 1500m2/g。
In the present embodiment, molecular sieve is the calcium type alumino-silicate in 0.8nm apertures.
In the present embodiment, kinematic viscosity at 40 DEG C of mineral oil is 74-80mm2/s。
In the present embodiment, calcium carbonate is superfine activated filler, and mesh number is 8000-10000 mesh.
In the present embodiment, antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and three The component thing of [2,4- di-tert-butyl-phenyl] phosphite ester, both weight part ratios are 2 ﹕ 1.
A kind of low-odor thermoplastic method for producing elastomers for being applicable automotive trim, comprises the following steps：
S1：Calcium carbonate, polypropylene, molecular sieve and activated carbon are made into master batch by mixing after formula ratio accurate weighing；
S2：Mixed at high speed will be put into after other raw material components accurate weighings of the step S1 master batches obtained and formula ratio Machine, addition is the 0.6 of high-speed mixer volume, is mixed 6 minutes；
S3：The material input double screw extruder being well mixed in step S2 is subjected to melting extrusion, the twin-screw is squeezed The temperature in the areas of Chu Ji mono- to 5th area is set to 170 DEG C, and the temperature in 6th area to tenth area is set as 180 DEG C, and rotating speed is 350r/min, pelletizing Speed is 21HZ, and vacuum is less than 0.6MPa；
S4：Extrude tie rod and pass through water cooling, pelletizing and drying, finally packed.
After tested, melt index is 13g/10min to thermoplastic elastomer (TPE) obtained by the present embodiment, and hardness is 70A, stretching Intensity 9.4MPa, elongation at break 650%, 3.2 points of smell, total carbon is 0.5 μ gC/g, formaldehyde 0.2mg/kg, condenses 0.4mg, light 4 grades of aging, heat storage surface without permeability, without separate out, surface it is not tacky, meet automotive upholstery requirement.
Embodiment 2
A kind of low-odor thermoplastic elastomer for being applicable automotive trim, includes the raw material components of following parts by weight meter：SEBS 30 parts, 13 parts of mineral oil, 27 parts of calcium carbonate, 27 parts of polypropylene, 0.5 part of antioxidant, 0.5 part of color masterbatch, 1 part of molecular sieve, activated carbon 1 Part.
In the present embodiment, polypropylene is metallocene random polypropylene, and melt index is 9.2g/min.
In the present embodiment, activated carbon is coconut husk class activated carbon, and iodine number amount is 700-1000mg/g, and specific surface area is 800- 1500m2/g。
In the present embodiment, molecular sieve is the calcium type alumino-silicate in 0.8nm apertures.
In the present embodiment, kinematic viscosity at 40 DEG C of mineral oil is 74-80mm2/s。
In the present embodiment, calcium carbonate is superfine activated filler, and mesh number is 8000-10000 mesh.
In the present embodiment, antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and three The component thing of [2,4- di-tert-butyl-phenyl] phosphite ester, both weight part ratios are 2 ﹕ 1.
A kind of low-odor thermoplastic method for producing elastomers for being applicable automotive trim, comprises the following steps：
S1：Calcium carbonate, polypropylene, molecular sieve and activated carbon are made into master batch by mixing after formula ratio accurate weighing；
S2：Mixed at high speed will be put into after other raw material components accurate weighings of the step S1 master batches obtained and formula ratio Machine, addition is the 0.6 of high-speed mixer volume, is mixed 7 minutes；
S3：The material input double screw extruder being well mixed in step S2 is subjected to melting extrusion, the twin-screw is squeezed The temperature in the areas of Chu Ji mono- to 5th area is set to 170 DEG C, and the temperature in 6th area to tenth area is set as 180 DEG C, and rotating speed is 353r/min, pelletizing Speed is 24HZ, and vacuum is less than 0.6MPa；
S4：Extrude tie rod and pass through water cooling, pelletizing and drying, finally packed.
After tested, melt index is 8g/10min to thermoplastic elastomer (TPE) obtained by the present embodiment, and hardness is 75A, stretching Intensity 10.45MPa, elongation at break 680%, 3.2 points of smell, total carbon is 0.4 μ gC/g, formaldehyde 0.2mg/kg, condenses 0.9mg, 4 grades of light aging, heat storage surface without permeability, without separate out, surface it is not tacky, meet automotive upholstery requirement.
Embodiment 3
A kind of low-odor thermoplastic elastomer for being applicable automotive trim, includes the raw material components of following parts by weight meter：SEBS 27 parts, 20 parts of mineral oil, 20 parts of calcium carbonate, 30 parts of polypropylene, 0.5 part of antioxidant, 0.5 part of color masterbatch, 1 part of molecular sieve, activated carbon 1 Part.
In the present embodiment, polypropylene is metallocene random polypropylene, and melt index is 9.3g/min.
In the present embodiment, activated carbon is coconut husk class activated carbon, and iodine number amount is 700-1000mg/g, and specific surface area is 800- 1500m2/g。
In the present embodiment, molecular sieve is the calcium type alumino-silicate in 0.8nm apertures.
In the present embodiment, kinematic viscosity at 40 DEG C of mineral oil is 74-80mm2/s。
In the present embodiment, calcium carbonate is superfine activated filler, and mesh number is 8000-10000 mesh.
In the present embodiment, antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and three The component thing of [2,4- di-tert-butyl-phenyl] phosphite ester, both weight part ratios are 2 ﹕ 1.
A kind of low-odor thermoplastic method for producing elastomers for being applicable automotive trim, comprises the following steps：
S1：Calcium carbonate, polypropylene, molecular sieve and activated carbon are made into master batch by mixing after formula ratio accurate weighing；
S2：Mixed at high speed will be put into after other raw material components accurate weighings of the step S1 master batches obtained and formula ratio Machine, addition is the 0.6 of high-speed mixer volume, is mixed 7 minutes；
S3：The material input double screw extruder being well mixed in step S2 is subjected to melting extrusion, the twin-screw is squeezed The temperature in the areas of Chu Ji mono- to 5th area is set to 170 DEG C, and the temperature in 6th area to tenth area is set as 180 DEG C, and rotating speed is 358r/min, pelletizing Speed is 25HZ, and vacuum is less than 0.6MPa；
S4：Extrude tie rod and pass through water cooling, pelletizing and drying, finally packed.
After tested, melt index is 32g/10min to thermoplastic elastomer (TPE) obtained by the present embodiment, and hardness is 65A, stretching Intensity 7.41MPa, elongation at break 650%, 3.3 points of smell, total carbon is 0.6 μ gC/g, formaldehyde 0.2mg/kg, condenses 0.7mg, 4 grades of light aging, heat storage surface without permeability, without separate out, surface it is not tacky, meet automotive upholstery requirement.
Embodiment 4
A kind of low-odor thermoplastic elastomer for being applicable automotive trim, includes the raw material components of following parts by weight meter：SEBS 27 parts, 18 parts of mineral oil, 20 parts of calcium carbonate, 32 parts of polypropylene, 0.5 part of antioxidant, 0.5 part of color masterbatch, 1 part of molecular sieve, activated carbon 1 Part.
In the present embodiment, polypropylene is metallocene random polypropylene, and melt index is 9.4g/min.
In the present embodiment, activated carbon is coconut husk class activated carbon, and iodine number amount is 700-1000mg/g, and specific surface area is 800- 1500m2/g。
In the present embodiment, molecular sieve is the calcium type alumino-silicate in 0.8nm apertures.
In the present embodiment, kinematic viscosity at 40 DEG C of mineral oil is 74-80mm2/s。
In the present embodiment, calcium carbonate is superfine activated filler, and mesh number is 8000-10000 mesh.
In the present embodiment, antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and three The component thing of [2,4- di-tert-butyl-phenyl] phosphite ester, both weight part ratios are 2 ﹕ 1.
A kind of low-odor thermoplastic method for producing elastomers for being applicable automotive trim, comprises the following steps：
S1：Calcium carbonate, polypropylene, molecular sieve and activated carbon are made into master batch by mixing after formula ratio accurate weighing；
S2：Mixed at high speed will be put into after other raw material components accurate weighings of the step S1 master batches obtained and formula ratio Machine, addition is the 0.7 of high-speed mixer volume, is mixed 8 minutes；
S3：The material input double screw extruder being well mixed in step S2 is subjected to melting extrusion, the twin-screw is squeezed The temperature in the areas of Chu Ji mono- to 5th area is set to 170 DEG C, and the temperature in 6th area to tenth area is set as 180 DEG C, and rotating speed is 360r/min, pelletizing Speed is 27HZ, and vacuum is less than 0.6MPa；
S4：Extrude tie rod and pass through water cooling, pelletizing and drying, finally packed.
After tested, melt index is 21g/10min to thermoplastic elastomer (TPE) obtained by the present embodiment, and hardness is 75A, stretching Intensity 9.46MPa, elongation at break 650%, 3.3 points of smell, total carbon is 0.5 μ gC/g, formaldehyde 0.1mg/kg, condenses 0.4mg, 4 grades of light aging, heat storage surface without permeability, without separate out, surface it is not tacky, meet automotive upholstery requirement.
Embodiment 5
A kind of low-odor thermoplastic elastomer for being applicable automotive trim, includes the raw material components of following parts by weight meter：SEBS 27 parts, 17.5 parts of mineral oil, 20 parts of calcium carbonate, 32 parts of polypropylene, 1 part of antioxidant, 0.5 part of color masterbatch, 1 part of molecular sieve, activated carbon 1 Part.
In the present embodiment, polypropylene is metallocene random polypropylene, and melt index is 9.7g/min.
In the present embodiment, activated carbon is coconut husk class activated carbon, and iodine number amount is 700-1000mg/g, and specific surface area is 800- 1500m2/g。
In the present embodiment, molecular sieve is the calcium type alumino-silicate in 0.8nm apertures.
In the present embodiment, kinematic viscosity at 40 DEG C of mineral oil is 74-80mm2/s。
In the present embodiment, calcium carbonate is superfine activated filler, and mesh number is 8000-10000 mesh.
In the present embodiment, antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and three The component thing of [2,4- di-tert-butyl-phenyl] phosphite ester, both weight part ratios are 2 ﹕ 1.
A kind of low-odor thermoplastic method for producing elastomers for being applicable automotive trim, comprises the following steps：
S1：Calcium carbonate, polypropylene, molecular sieve and activated carbon are made into master batch by mixing after formula ratio accurate weighing；
S2：Mixed at high speed will be put into after other raw material components accurate weighings of the step S1 master batches obtained and formula ratio Machine, addition is the 0.7 of high-speed mixer volume, is mixed 8 minutes；
S3：The material input double screw extruder being well mixed in step S2 is subjected to melting extrusion, the twin-screw is squeezed The temperature in the areas of Chu Ji mono- to 5th area is set to 170 DEG C, and the temperature in 6th area to tenth area is set as 180 DEG C, and rotating speed is 365r/min, pelletizing Speed is 29HZ, and vacuum is less than 0.6MPa；
S4：Extrude tie rod and pass through water cooling, pelletizing and drying, finally packed.
After tested, melt index is 20g/10min to thermoplastic elastomer (TPE) obtained by the present embodiment, and hardness is 75A, stretching Intensity 9.51MPa, elongation at break 650%, 3.3 points of smell, total carbon is 0.5 μ gC/g, formaldehyde 0.2mg/kg, condenses 0.4mg, 4.5 grades of light aging, heat storage surface without permeability, without separate out, surface it is not tacky, meet automotive upholstery requirement.
Embodiment 6
A kind of low-odor thermoplastic elastomer for being applicable automotive trim, includes the raw material components of following parts by weight meter：SEBS 27 parts, 17.5 parts of mineral oil, 20 parts of calcium carbonate, 32 parts of polypropylene, 0.5 part of antioxidant, 0.5 part of color masterbatch, 0.5 part of molecular sieve is living 0.5 part of charcoal of property.
In the present embodiment, polypropylene is metallocene random polypropylene, and melt index is 9.9g/min.
In the present embodiment, activated carbon is coconut husk class activated carbon, and iodine number amount is 700-1000mg/g, and specific surface area is 800- 1500m2/g。
In the present embodiment, molecular sieve is the calcium type alumino-silicate in 0.8nm apertures.
In the present embodiment, kinematic viscosity at 40 DEG C of mineral oil is 74-80mm2/s。
In the present embodiment, calcium carbonate is superfine activated filler, and mesh number is 8000-10000 mesh.
In the present embodiment, antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and three The component thing of [2,4- di-tert-butyl-phenyl] phosphite ester, both weight part ratios are 2 ﹕ 1.
A kind of low-odor thermoplastic method for producing elastomers for being applicable automotive trim, comprises the following steps：
S1：Calcium carbonate, polypropylene, molecular sieve and activated carbon are made into master batch by mixing after formula ratio accurate weighing；
S2：Mixed at high speed will be put into after other raw material components accurate weighings of the step S1 master batches obtained and formula ratio Machine, addition is the 0.65 of high-speed mixer volume, is mixed 7 minutes；
S3：The material input double screw extruder being well mixed in step S2 is subjected to melting extrusion, the twin-screw is squeezed The temperature in the areas of Chu Ji mono- to 5th area is set to 170 DEG C, and the temperature in 6th area to tenth area is set as 180 DEG C, and rotating speed is 366r/min, pelletizing Speed is 29HZ, and vacuum is less than 0.6MPa；
S4：Extrude tie rod and pass through water cooling, pelletizing and drying, finally packed.
After tested, melt index is 22.4g/10min to thermoplastic elastomer (TPE) obtained by the present embodiment, and hardness is 75A, is drawn Stretch intensity 9.51MPa, elongation at break 650%, 3.5 points of smell, total carbon is 0.5 μ gC/g, formaldehyde 0.2mg/kg, condensation 0.4mg, 4 grades of light aging, heat storage surface without permeability, without separate out, surface it is not tacky, meet automotive upholstery requirement.
Embodiment 7
A kind of low-odor thermoplastic elastomer for being applicable automotive trim, includes the raw material components of following parts by weight meter：SEBS 30 parts, 17.5 parts of mineral oil, 20 parts of calcium carbonate, 29 parts of polypropylene, 0.5 part of antioxidant, 0.5 part of color masterbatch, 0.5 part of molecular sieve is living 0.5 part of charcoal of property.
In the present embodiment, polypropylene is metallocene random polypropylene, and melt index is 10g/min.
In the present embodiment, activated carbon is coconut husk class activated carbon, and iodine number amount is 700-1000mg/g, and specific surface area is 800- 1500m2/g。
In the present embodiment, molecular sieve is the calcium type alumino-silicate in 0.8nm apertures.
In the present embodiment, kinematic viscosity at 40 DEG C of mineral oil is 74-80mm2/s。
In the present embodiment, calcium carbonate is superfine activated filler, and mesh number is 8000-10000 mesh.
In the present embodiment, antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and three The component thing of [2,4- di-tert-butyl-phenyl] phosphite ester, both weight part ratios are 2 ﹕ 1.
A kind of low-odor thermoplastic method for producing elastomers for being applicable automotive trim, comprises the following steps：
S1：Calcium carbonate, polypropylene, molecular sieve and activated carbon are made into master batch by mixing after formula ratio accurate weighing；
S2：Mixed at high speed will be put into after other raw material components accurate weighings of the step S1 master batches obtained and formula ratio Machine, addition is the 0.65 of high-speed mixer volume, is mixed 7.5 minutes；
S3：The material input double screw extruder being well mixed in step S2 is subjected to melting extrusion, the twin-screw is squeezed The temperature in the areas of Chu Ji mono- to 5th area is set to 170 DEG C, and the temperature in 6th area to tenth area is set as 180 DEG C, and rotating speed is 370r/min, pelletizing Speed is 31HZ, and vacuum is less than 0.6MPa；
S4：Extrude tie rod and pass through water cooling, pelletizing and drying, finally packed.
After tested, melt index is 16.5g/10min to thermoplastic elastomer (TPE) obtained by the present embodiment, and hardness is 68A, is drawn Stretch intensity 9.211MPa, elongation at break 650%, 3.5 points of smell, total carbon is 0.6 μ gC/g, formaldehyde 0.2mg/kg, condensation 0.4mg, 4 grades of light aging, heat storage surface without permeability, without separate out, surface it is not tacky, meet automotive upholstery requirement.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, although with reference to foregoing reality Apply example the present invention is described in detail, for those skilled in the art, it still can be to foregoing each implementation Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic.All essences in the present invention God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.

Claims (10)

1. a kind of low-odor thermoplastic elastomer for being applicable automotive trim, it is characterised in that include the raw material of following parts by weight meter Component：25-30 parts of SEBS, 10-20 parts of mineral oil, 15-30 parts of calcium carbonate, 25-35 parts of polypropylene, 0.5-1 parts Antioxidant, 0.5 part of color masterbatch, 0.5-1 parts of molecular sieve, 0.5-1 parts of activated carbon；
The polypropylene is metallocene random polypropylene, and the activated carbon is coconut husk class activated carbon.
2. a kind of low-odor thermoplastic elastomer for being applicable automotive trim according to claim 1, it is characterised in that including The raw material components of following parts by weight meter：27-30 parts of SEBS, 10-20 parts of mineral oil, 20-27 parts of calcium carbonate, 27-32 parts Polypropylene, 0.5-1 parts of antioxidant, 0.5 part of color masterbatch, 0.5-1 parts of molecular sieve, 0.5-1 parts of activated carbon.
3. a kind of low-odor thermoplastic elastomer for being applicable automotive trim according to claim 1, it is characterised in that described The melt index of metallocene random polypropylene is 9-10g/min.
4. a kind of low-odor thermoplastic elastomer for being applicable automotive trim according to claim 1, it is characterised in that described Kinematic viscosity during 40 DEG C of mineral oil is 74-80mm2/s。
5. a kind of low-odor thermoplastic elastomer for being applicable automotive trim according to claim 1, it is characterised in that described Molecular sieve is the calcium type alumino-silicate in 0.8nm apertures.
6. a kind of low-odor thermoplastic elastomer for being applicable automotive trim according to claim 1, it is characterised in that described The iodine number amount of activated carbon is 700-1000mg/g, and specific surface area is 800-1500m2/g。
7. a kind of low-odor thermoplastic elastomer for being applicable automotive trim according to claim 1, it is characterised in that described Calcium carbonate is superfine activated filler, and mesh number is 8000-10000 mesh.
8. a kind of low-odor thermoplastic elastomer for being applicable automotive trim according to claim 1, it is characterised in that described Antioxidant is that four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and three [2,4- di-tert-butyl-phenyls] are sub- The component thing of phosphate, both weight part ratios are 2 ﹕ 1.
9. a kind of low-odor thermoplastic method for producing elastomers for being applicable automotive trim, it is characterised in that comprise the following steps：
S1：Calcium carbonate, polypropylene, molecular sieve and activated carbon are made into master batch by mixing after formula ratio accurate weighing；
S2：High-speed mixer will be put into after other raw material components accurate weighings of the step S1 master batches obtained and formula ratio, plus Enter the 0.6-0.7 that amount is high-speed mixer volume, mix 6-8 minutes；
S3：The material input double screw extruder being well mixed in step S2 is subjected to melting extrusion, the double screw extruder The temperature in one area to 5th area is set to 170 DEG C, and the temperature in 6th area to tenth area is set as 180 DEG C；
S4：Extrude tie rod and pass through water cooling, pelletizing and drying, finally packed.
10. a kind of low-odor thermoplastic method for producing elastomers for being applicable automotive trim according to claim 9, it is special Levy and be, the rotating speed of double screw extruder is 350-370r/min in the step S3, pelletizing speed is 21-31HZ, vacuum Less than 0.6MPa.
CN201710356330.8A 2017-05-19 2017-05-19 It is a kind of to be applicable low-odor thermoplastic elastomer of automotive trim and preparation method thereof Pending CN107151412A (en)

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Application publication date: 20170912