CN108285577A - A kind of TPEE modified thermoplastic elastomers weather strip for automobile - Google Patents
A kind of TPEE modified thermoplastic elastomers weather strip for automobile Download PDFInfo
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- CN108285577A CN108285577A CN201810094600.7A CN201810094600A CN108285577A CN 108285577 A CN108285577 A CN 108285577A CN 201810094600 A CN201810094600 A CN 201810094600A CN 108285577 A CN108285577 A CN 108285577A
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- sealing strip
- tpee
- tpe
- automobile
- thermoplastic elastomers
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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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- 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
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
Abstract
The present invention relates to a kind of TPEE modified thermoplastic elastomers weather strip for automobile.It is constituted by base-material and auxiliary agent are compound, and wherein base-material is by PP namely resin and two kinds of thermoplastic polyolefin elastomer TPE A and polyester elastomer TPE B are compound constitutes.It is 1 that it, which makes work clothes step,）Automatic proportioning is plasticated oil-filled pre-dispersed；2）Twin-screw plasticate melt blending squeeze out, be granulated；3）Seal billot product inspection；4）Sealing strip squeezes out processing：Machining production line is squeezed out in sealing strip, completes charging, the work of compound, underwater drought；5）Sealing strip finished product item is examined：The detection of structure, physicochemical property is carried out to sealing strip；6）Segment is carried out to sealing strip, connects angle：According to sealing strip specification requirement, segment is carried out, and carry out connecing angle using angle mold is connect；7）Packaging and storage：Sealing strip finished product is detected again, eligible storage.Properties of product of the present invention are excellent, and product hardness is adjusted by PP contents, applied widely, can meet weather strip for automobile ultralow temperature and lift freely.
Description
Technical field
The present invention relates to TPEE modified thermoplastic elastomer weather strip for automobile, belong to modified thermoplastic elastomer sealing material skill
Art field, specially a kind of TPEE modified thermoplastic elastomers weather strip for automobile.
Background technology
Automobile sealed adhesive tape is widely used in the positions such as car door, vehicle window, vehicle body, skylight, has waterproof, sealing, sound insulation, prevents
Dirt, damping and the important function such as energy saving.In recent years, country pays much attention to the pipes such as automotive light weight technology, low VOC, energy-saving and emission-reduction, noise abatement
Reason, the production of conventional seals item mainly use flexible PVC, ethylene propylene diene rubber（EPDM）Raw material.It is manufactured using EPDM synthetic rubber
Although sealing strip expressing technique performance it is good, anti-weathering aging performance is strong, high comprehensive performance, needs to add in process of production
Increasing amount pulvis, vulcanizing agent and vulcanization aid etc., it is cumbersome that there are techniques, need to be through rolled-to-death rubber, sulphur the problems such as polluting, can not recycle
Change working process, high energy consumption, not recyclable, VOC high.TPV sealing strips are modified by EPDM and PP plastic blends, can quickly be squeezed out
Molding, without vulcanization, resistance to ozone, weatherability are excellent, but elasticity is poor, containing VOC, ultralow temperature performance etc. by certain
It influences.TPEE sealing strips contain the block copolymer of polyester hard section and polyester soft segment, have better processing performance with rubber ratio
With longer service life, there is high intensity, flexibility and dynamic mechanical compared with engineering material.
Currently, rubber-plasitcs blend modification flexible PVC is the thermoplastic elastomer (TPE) used earliest, processing technology is good, price
Cheaply, but contain halogen and a large amount of plasticizer.It is classified as environmental protection disabling material in the car, and density is unfavorable for lightweight, only
It is used in low-grade sealing strip product.The U.S.'s Monsanto generally used now（Monsanto）Company's patent of invention, with poly- third
Alkene (PP) is blended with EPDM, adds vulcanizing agent, the TPV produced through dynamic vulcanization.It is using PP as continuous phase, vulcanized rubber is dispersion
The thermoplastic elastomer (TPE) with special construction of particle can be directly entered extruder for shaping and without passing through drying tunnel sulphur again
Change, product has both that EPDM resiliences are good, the ageing-resistant and plastic processing good advantages of PP.But its key technology rests in external several
Company, such as U.S. Exxon Moblie, in the companies such as U.S. Tekor Apex, Mitsui hand, the producer of domestic production TPV
There are Shandong Down, Jiangsu to lead to the companies such as tough, Nanjing Ao Pute, product quality more still has larger gap with offshore company.TPV gives birth to
Production. art is similar with EPDM, needs through rolled-to-death rubber plus sulphur, dynamic vulcanization reaction process is complicated, home products quality control
Difficulty processed is high, stability is poor.TPV is expensive from external import price as high-grade raw material at present, low and middle-grade to use domestic price
Also relatively high, its use scope is not only limited, and TPV contains remaining vulcanizing agent and other auxiliary agents, production as EPDM
Raw unusual odor is difficult to reach VOC standards.Recent year also have producer reflection TPV because be plasticized it is bad, influence moulding process and
The problem of product appearance, sulphidity controls improper or vulcanized rubber particles bad dispersibility, shadow mainly in TPV production processes
Ring the mobility of melt.
Invention content
The goal of the invention of the present invention, which is that, provides a kind of TPEE modified thermoplastic elastomers weather strip for automobile, product
Can be excellent, product hardness can be adjusted by PP contents, it is applied widely, it disclosure satisfy that the liter freely of weather strip for automobile ultralow temperature
Drop.
（1）Properties of product are excellent, and product hardness can be adjusted by PP contents, applied widely, disclosure satisfy that automobile is close
The lifting freely of strip of paper used for sealing ultralow temperature；
（2）It is environmentally protective, EPDM is free of in component structure, it is low VOC, recyclable；
（3）Energy-efficient, extrusion die hole is big, and production temperature is low, and pernicious gas is few；Product density is small, and lumber recovery is high.
The technical scheme is that：
A kind of TPEE modified thermoplastic elastomers weather strip for automobile of the present invention, is constituted by base-material and auxiliary agent are compound, wherein base-material by
PP namely resin and two kinds of thermoplastic polyolefin elastomer TPE-A and the compound compositions of polyester elastomer TPE-B；The auxiliary agent includes profit
Lubrication prescription, toughener, compatilizer, coupling agent, antioxidant.
The weight part ratio of above-mentioned each component is：TPE-A 25-35；TPE-B 20-30；PP30-40；Lubricant 5-10；
Toughener 1-3；Compatilizer 1-2；Coupling agent 0.1-0.5；Antioxidant 0.1-0.5；
Methylacrylate-Acrylate Copolymer or methyl methacrylate-butadiene-styrene can be used in the toughener
One kind in ternary graft copolymer or maleic anhydride grafted ethene-octene copolymer.
The lubricant is the one kind that can be used in paraffin oil, white oil.It is mainly used for adjusting viscosity, plasticising.
ST-2 can be used in the compatilizer, for PE, PP and its compatible and toughening of modified material.
Si-69, i.e., double-[γ-(triethoxysilicane) propyl] tetrasulfide can be used in the coupling agent.For keeping vulcanizing
Balance makes it obtain good heat aging performance to increase reversion resistance, improves wearability, resistance to cutting property and resistance to pressure, improves
Bendability.
The antioxidant be can be used tetrapentaerythritol fat, bis-phenol, polyphenol, thiobisphenol, hydroquinone, p-phenylenediamine,
Quinoline etc. is one such or two kinds, numerous compositions, prevents the thermal oxidative degradation in certain polymer processings,
Its processing and forming is set to be smoothed out.
The manufacture craft of TPEE modified thermoplastic elastomers weather strip for automobile of the present invention, step include：
（1）Automatic proportioning is plasticated oil-filled pre-dispersed：By TPE-A, TPE-B dispensing in proportion, it is continuously filled with lubricant, is carried out
It is heated to 70-900C is mixed 30-50 minutes；PP, toughener, compatilizer, coupling agent, the antioxygen of corresponding amount are added simultaneously
Agent etc. carries out mixing, time 20-30 minute.
（2）Twin-screw plasticate melt blending squeeze out, be granulated：Select double-screw extruding pelletizing machine, the control of melt blending temperature
In 160-1800C, vacuum dried, homogenizing, degassing, realizes extruding pelletization, and it is close to form TPEE modified thermoplastic elastomer automobiles
Strip of paper used for sealing material.
（3）Seal billot product inspection：To the above-mentioned automobile sealed billot of TPEE modified thermoplastic elastomers produced into
Row physicochemical property detects, and item production and processing can be sealed after detection is qualified.
（4）Sealing strip squeezes out processing：Machining production line is squeezed out in sealing strip, completes charging, compound, underwater drought
Work.
（5）Sealing strip finished product item is examined：The detection of structure, physicochemical property is carried out to sealing strip.
（6）Segment is carried out to sealing strip, connects angle：According to sealing strip specification requirement, carry out segment, and using connect angle mold into
Row connects angle.
（7）Packaging and storage：Sealing strip finished product is detected again, eligible storage.
The present invention technical principle be：A kind of automobile sealed strip adoption macromolecule of TPEE modified thermoplastic elastomers is compound to be changed
Property technology, raw material select PP and two kinds of thermoplastic polyolefin elastomers（TPE-A）With polyester elastomer TPEE（TPE-B）Ternary is multiple
It closes and makees base-material, the TPE/PP materials of rubber-plasitcs blend modification instead of EPDM, addition appropriate amount of addition agent etc. is blended through double screw extruder and squeezes
Go out, underwater blank, vacuum drying, homogenizing, deodorization, the production stages such as finished product packing are made low VOC and are modified TPEE weather strip for automobile
Material.
Beneficial effects of the present invention are：
1. in a kind of TPEE modified thermoplastic elastomers weather strip for automobile component structure, using soft containing polyester hard section and polyethers
The block copolymer of section, wherein polyester soft segment and uncrystallized polyester form amorphous phase polyester hard section partially crystallizable and form crystallization
Microcell plays physical crosslinking point；By PP component structural adjustments, the elastic and engineering plastics strong of rubber is made it have
Degree, soft segment assign its elasticity as rubber, and hard section assigns its processing performance as plastics, have better processing performance and longer make
With service life, high intensity, flexibility and dynamic mechanical.
2. in a kind of TPEE modified thermoplastic elastomers weather strip for automobile moulding process, in EPDM sealing strip production technologies
On the basis of, cancel sulfuration process, optimize technique technical parameter realizes low VOC environmental protection vapour using expressing technique, complex technique
The efficient production of vehicle sealing strip.
TPEE modified thermoplastic elastomers weather strip for automobile of the present invention can meet in actual production：
1）It is different for the technical parameter of different its sealing strips of auto vendor, using high vacuum melt polycondensation technology, Ke Yitong
Overregulate the proportionings such as each component such as PP, auxiliary agent content, realize and be granulated production, meet its different performance, different operating modes product need
It asks.
2）Modified TPEE sealing billots TPE-A is non-crystalline type copolymer, and soft segment is the aliphatic poly alkene of branched structure,
High resiliency is provided；Hard section plays physical crosslinking instead of the vulcanization of rubber.TPE-B is crystal type copolymer, and soft segment is aliphatic poly
Ether provides low temperature and anti-aging property for elastomer；Hard section is highly crystalline polyester, improves melt rheology and processing performance, and carry
High resiliency bulk melting point and heat resistance.Two kinds of different structure thermoplastic elastomer (TPE)s add made from PP tri compound be modified TPE have compared with
The better comprehensive performances of TPV, test stone and different sealing processing technology to meet automobile sealed billot require to provide
New material, new process, new product.
3）It is added micro peroxide in modified TPEE sealings billot, when heating decomposites free radical, and polymer is made to be blended
Dynamic vulcanization occurs when extrusion, realizes low chemical crosslinking, the compatibility and stabilization between opposed polarity polymers compositions can be improved
Property.
4）Modified TPEE sealing billots, as raw material, are not had to EPDM, add sulphur and sulphur without refining glue using thermoplastic elastomer (TPE)
Technical process, the Peculiar Smell of residual vulcanizing agent, the tool in the relatively good environmental pollution solved in TPV productions and product such as change
There is the characteristics of low VOC, advantageously reduce overall cost, there is apparent superiority of effectiveness compared with TPV.
5）Modified TPEE sealings billot performance can meet national standard well, and can reach the standard of enterprise, with 75A glue
For material, intensity is generally all in 10MPa or more, the heat aging performance energy of 135 DEG C 1000h higher than the TPV intensity on current market
60% or more is maintained, it is completely qualified that compression set is detected in 41%, VOC, and oder levels are low, these key indexes compare city
Overwhelming majority TPV is more excellent on face.
Description of the drawings
Fig. 1 is present invention process flow chart.
Fig. 2 is prilling flow chart of the present invention.
Fig. 3 is the sealing strip extruding-out process flow chart of the present invention.
Specific implementation mode
It is the embodiment of the present invention 1 below
（1）A kind of TPEE modified thermoplastic elastomers weather strip for automobile of the present invention, is constituted, wherein base-material by base-material and auxiliary agent are compound
By PP and two kinds of thermoplastic polyolefin elastomers（TPE-A）With polyester elastomer TPEE（TPE-B）Compound composition；The auxiliary agent includes
Lubricant, toughener, compatilizer, coupling agent, antioxidant.
The weight part ratio of above-mentioned each component is preferably：TPE-A 26；TPE-B 29；PP36；Profit 6；Toughener 1.1；Phase
Hold agent 1.2；Coupling agent 0.4；Antioxidant 0.3.
The toughener is Methylacrylate-Acrylate Copolymer.
The lubricant is white oil.
The compatilizer is ST-2.
The coupling agent is Si-69.
The antioxidant is tetrapentaerythritol fat, bis-phenol composition.
The manufacture craft of the TPEE modified thermoplastic elastomers weather strip for automobile as shown in Figure 1, Figure 2, Fig. 3, step includes：
（1）Automatic proportioning is plasticated oil-filled pre-dispersed：By TPE-A, TPE-B dispensing in proportion, it is continuously filled with lubricant, is carried out
Heat 82-880C is mixed 45 minutes；PP, toughener, compatilizer, coupling agent, antioxidant etc. are added simultaneously and carries out mixing, when
Between 23 minutes.
（2）Twin-screw plasticate melt blending squeeze out, be granulated：Twin-screw open mill selects the limited public affairs of the easy mechano-electronic of Nanjing writing brush
Take charge of the SHJ series double-screw extruding pelletizing units of production, melt blending temperature 1680C, vacuum dried, homogenizing, degassing, is realized
Extruding pelletization forms the automobile sealed billot of TPEE modified thermoplastic elastomers.
（3）Seal billot product inspection：Physicochemical property inspection is carried out to the automobile sealed billot of TPEE modified thermoplastic elastomers
It surveys, after detection is qualified, is sealed item production and processing.
（4）Sealing strip squeezes out processing：Sealing strip squeezes out processing and selects Hebei new intention rubber mechanical equipment Co., Ltd CY
Composite extrusion product line is completed to draw under charging, compound, expressed water.
（5）Sealing strip finished product item is examined：Structure is carried out to sealing strip, physicochemical property is detected.
（6）Segment is carried out to sealing strip, connects angle：According to sealing strip specification requirement, carry out segment, and using connect angle mold into
Row connects angle.
（7）Packaging and storage：Sealing strip finished product is detected, is put in storage.
Embodiment 2：
A kind of TPEE modified thermoplastic elastomers weather strip for automobile is constituted by base-material and auxiliary agent are compound, wherein base-material by PP namely
Resin and two kinds of thermoplastic polyolefin elastomer TPE-A and the compound compositions of polyester elastomer TPE-B；The auxiliary agent include lubricant,
Toughener, compatilizer, coupling agent, antioxidant.
The weight part ratio of each component is：TPE-A 35；TPE-B 530；PP540；Lubricant 10；Toughener 3；Compatilizer
2；Coupling agent 0.5；Antioxidant 0.5；
Methylacrylate-Acrylate Copolymer or methyl methacrylate-butadiene-styrene can be used in the toughener
One kind in ternary graft copolymer or maleic anhydride grafted ethene-octene copolymer.
The lubricant is the one kind that can be used in paraffin oil, white oil.It is mainly used for adjusting viscosity, plasticising.
ST-2 can be used in the compatilizer, for PE, PP and its compatible and toughening of modified material.
Si-69, i.e., double-[γ-(triethoxysilicane) propyl] tetrasulfide can be used in the coupling agent.For keeping vulcanizing
Balance makes it obtain good heat aging performance to increase reversion resistance, improves wearability, resistance to cutting property and resistance to pressure, improves
Bendability.
The antioxidant be can be used tetrapentaerythritol fat, bis-phenol, polyphenol, thiobisphenol, hydroquinone, p-phenylenediamine,
Quinoline etc. is one such or two kinds, numerous compositions, prevents the thermal oxidative degradation in certain polymer processings,
Its processing and forming is set to be smoothed out.
The manufacture craft of TPEE modified thermoplastic elastomers weather strip for automobile of the present invention as shown in Figure 1, Figure 2, Fig. 3, step
Suddenly include：
（1）Automatic proportioning is plasticated oil-filled pre-dispersed：By TPE-A, TPE-B dispensing in proportion, it is continuously filled with lubricant, is carried out
It is heated to 70-900C is mixed 30-50 minutes；PP, toughener, compatilizer, coupling agent, the antioxygen of corresponding amount are added simultaneously
Agent etc. carries out mixing, time 20-30 minute.
（2）Twin-screw plasticate melt blending squeeze out, be granulated：Select double-screw extruding pelletizing machine, the control of melt blending temperature
In 160-1800C, vacuum dried, homogenizing, degassing, realizes extruding pelletization, and it is close to form TPEE modified thermoplastic elastomer automobiles
Strip of paper used for sealing material.
（3）Seal billot product inspection：To the above-mentioned automobile sealed billot of TPEE modified thermoplastic elastomers produced into
Row physicochemical property detects, and item production and processing can be sealed after detection is qualified.
（4）Sealing strip squeezes out processing：Machining production line is squeezed out in sealing strip, completes charging, compound, underwater drought
Work.
（5）Sealing strip finished product item is examined：The detection of structure, physicochemical property is carried out to sealing strip.
（6）Segment is carried out to sealing strip, connects angle：According to sealing strip specification requirement, carry out segment, and using connect angle mold into
Row connects angle.
（7）Packaging and storage：Sealing strip finished product is detected again, eligible storage.
The present invention technical principle be：A kind of automobile sealed strip adoption macromolecule of TPEE modified thermoplastic elastomers is compound to be changed
Property technology, raw material select PP and two kinds of thermoplastic polyolefin elastomers（TPE-A）With polyester elastomer TPEE（TPE-B）Ternary is multiple
It closes and makees base-material, the TPE/PP materials of rubber-plasitcs blend modification instead of EPDM, addition appropriate amount of addition agent etc. is blended through double screw extruder and squeezes
Go out, underwater blank, vacuum drying, homogenizing, deodorization, the production stages such as finished product packing are made low VOC and are modified TPEE weather strip for automobile
Material.
Embodiment 3：
A kind of TPEE modified thermoplastic elastomers weather strip for automobile is constituted by base-material and auxiliary agent are compound, wherein base-material by PP namely
Resin and two kinds of thermoplastic polyolefin elastomer TPE-A and the compound compositions of polyester elastomer TPE-B；The auxiliary agent include lubricant,
Toughener, compatilizer, coupling agent, antioxidant.
The weight part ratio of above-mentioned each component is：TPE-A 25；TPE-B 20；PP30；Lubricant 5；Toughener 1；It is compatible
Agent 1；Coupling agent 0.1；Antioxidant 0.1.
Methylacrylate-Acrylate Copolymer or methyl methacrylate-butadiene-benzene can be used in the toughener
One kind in ethylene ternary graft copolymer or maleic anhydride grafted ethene-octene copolymer.
The lubricant is the one kind that can be used in paraffin oil, white oil.It is mainly used for adjusting viscosity, plasticising.
ST-2 can be used in the compatilizer, for PE, PP and its compatible and toughening of modified material.
Si-69, i.e., double-[γ-(triethoxysilicane) propyl] tetrasulfide can be used in the coupling agent.For keeping vulcanizing
Balance makes it obtain good heat aging performance to increase reversion resistance, improves wearability, resistance to cutting property and resistance to pressure, improves
Bendability.
The antioxidant be can be used tetrapentaerythritol fat, bis-phenol, polyphenol, thiobisphenol, hydroquinone, p-phenylenediamine,
Quinoline etc. is one such or two kinds, numerous compositions, prevents the thermal oxidative degradation in certain polymer processings,
Its processing and forming is set to be smoothed out.
The manufacture craft of TPEE modified thermoplastic elastomers weather strip for automobile of the present invention as shown in Figure 1, Figure 2, Fig. 3, step
Suddenly include：
（1）Automatic proportioning is plasticated oil-filled pre-dispersed：By TPE-A, TPE-B dispensing in proportion, it is continuously filled with lubricant, is carried out
It is heated to 70-900C is mixed 30-50 minutes；PP, toughener, compatilizer, coupling agent, the antioxygen of corresponding amount are added simultaneously
Agent etc. carries out mixing, time 20-30 minute.
（2）Twin-screw plasticate melt blending squeeze out, be granulated：Select double-screw extruding pelletizing machine, the control of melt blending temperature
In 160-1800C, vacuum dried, homogenizing, degassing, realizes extruding pelletization, and it is close to form TPEE modified thermoplastic elastomer automobiles
Strip of paper used for sealing material.
（3）Seal billot product inspection：To the above-mentioned automobile sealed billot of TPEE modified thermoplastic elastomers produced into
Row physicochemical property detects, and item production and processing can be sealed after detection is qualified.
（4）Sealing strip squeezes out processing：Machining production line is squeezed out in sealing strip, completes charging, compound, underwater drought
Work.
（5）Sealing strip finished product item is examined：The detection of structure, physicochemical property is carried out to sealing strip.
（6）Segment is carried out to sealing strip, connects angle：According to sealing strip specification requirement, carry out segment, and using connect angle mold into
Row connects angle.
（7）Packaging and storage：Sealing strip finished product is detected again, eligible storage.
The present invention technical principle be：A kind of automobile sealed strip adoption macromolecule of TPEE modified thermoplastic elastomers is compound to be changed
Property technology, raw material select PP and two kinds of thermoplastic polyolefin elastomers（TPE-A）With polyester elastomer TPEE（TPE-B）Ternary is multiple
It closes and makees base-material, the TPE/PP materials of rubber-plasitcs blend modification instead of EPDM, addition appropriate amount of addition agent etc. is blended through double screw extruder and squeezes
Go out, underwater blank, vacuum drying, homogenizing, deodorization, the production stages such as finished product packing are made low VOC and are modified TPEE weather strip for automobile
Material.
Had according to hardness requirement difference sizing material when the embodiment of the present invention：65 ± 5A, 75 ± 5A, 85 ± 5A are respectively used to vapour
Vehicle glass run, water cuts, skylight etc..
Claims (3)
1. a kind of TPEE modified thermoplastic elastomers weather strip for automobile, it is characterised in that：The sealing strip is compound by base-material and auxiliary agent
It constitutes, wherein base-material is by PP namely resin and two kinds of thermoplastic polyolefin elastomer TPE-A and the compound structures of polyester elastomer TPE-B
At；The auxiliary agent includes lubricant, toughener, compatilizer, coupling agent, antioxidant；
The weight part ratio of above-mentioned each component is：TPE-A 25-35；TPE-B 20-30；PP30-40；Lubricant 5-10；Toughening
Agent 1-3；Compatilizer 1-2；Coupling agent 0.1-0.5；Antioxidant 0.1-0.5.
2. a kind of TPEE modified thermoplastic elastomers weather strip for automobile according to claim 1, it is characterised in that：
The toughener uses Methylacrylate-Acrylate Copolymer or methyl methacrylate-butadiene-styrene three
One kind in first graft copolymer or maleic anhydride grafted ethene-octene copolymer；
The lubricant is using one kind in paraffin oil, white oil；
The compatilizer uses ST-2；
The coupling agent uses Si-69, i.e., double-[γ-(triethoxysilicane) propyl] tetrasulfide；
The antioxidant is to be spread out using tetrapentaerythritol fat, bis-phenol, polyphenol, thiobisphenol, hydroquinone, p-phenylenediamine, quinoline
Biology etc. is one such or two kinds, numerous compositions.
3. a kind of manufacture craft of TPEE modified thermoplastic elastomers weather strip for automobile according to claim 1, feature
It is：The manufacturing process steps are,
（1）Automatic proportioning is plasticated oil-filled pre-dispersed：By TPE-A, TPE-B dispensing in proportion, it is continuously filled with lubricant, is carried out
It is heated to 70-900C is mixed 30-50 minutes；PP, toughener, compatilizer, coupling agent, the antioxygen of corresponding amount are added simultaneously
Agent etc. carries out mixing, time 20-30 minute；
（2）Twin-screw plasticate melt blending squeeze out, be granulated：Double-screw extruding pelletizing machine, the control of melt blending temperature is selected to exist
160-1800C, vacuum dried, homogenizing, degassing, realizes extruding pelletization, and it is automobile sealed to form TPEE modified thermoplastic elastomers
Billot；
（3）Seal billot product inspection：The above-mentioned automobile sealed billot of TPEE modified thermoplastic elastomers produced is managed
Change performance detection, item production and processing can be sealed after detection is qualified；
（4）Sealing strip squeezes out processing：Sealing strip squeeze out machining production line, complete charging, compound, underwater drought work
Make；
（5）Sealing strip finished product item is examined：The detection of structure, physicochemical property is carried out to sealing strip；
（6）Segment is carried out to sealing strip, connects angle：According to sealing strip specification requirement, segment is carried out, and connect using angle mold is connect
Angle；
（7）Packaging and storage：Sealing strip finished product is detected again, eligible storage.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109910414A (en) * | 2019-02-28 | 2019-06-21 | 安徽省奥佳建材有限公司 | A kind of polymer membranes and its production technology |
| CN110105662A (en) * | 2019-04-26 | 2019-08-09 | 安徽新视野门窗幕墙工程有限公司 | A kind of fire-retardant sealing strip and preparation method thereof |
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| CN113478777A (en) * | 2021-07-13 | 2021-10-08 | 深圳市阳林五金塑胶制品有限公司 | Preparation method of anti-collision wrap angle rubber strip and anti-collision wrap angle rubber strip |
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