CN106928626A - Thermoplastic elastic material for secondary injection adhering and preparation method thereof - Google Patents
Thermoplastic elastic material for secondary injection adhering and preparation method thereof Download PDFInfo
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- CN106928626A CN106928626A CN201710115109.3A CN201710115109A CN106928626A CN 106928626 A CN106928626 A CN 106928626A CN 201710115109 A CN201710115109 A CN 201710115109A CN 106928626 A CN106928626 A CN 106928626A
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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
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- 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
- 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 thermoplastic elastic material for secondary injection adhering and preparation method thereof.For the thermoplastic elastic material of secondary injection adhering, according to the mass fraction, including：55 parts~95 parts of block copolymer；2 parts~35 parts of mineral oil；5 parts~40 parts of ethylene propylene diene rubber polypropylene alloy thermoplastic elastomer (TPE)；1 part~20 parts of maleic anhydride grafts；And 5 parts~20 parts of mineral filler；Wherein, the block copolymer is selected from least one in Styrene Ethylene styrene elastomer, styrene butadiene styrene block copolymer and styrene butadiene block copolymer.The above-mentioned thermoplastic elastic material peel strength for secondary injection adhering is higher.
Description
Technical field
The present invention relates to a kind of thermoplastic elastic material for secondary injection adhering and preparation method thereof.
Background technology
Thermoplastic polyester PET, PBT, PC, PA, POM, PS and its modified product such as general engineering plastic such as ABS, K glue, HIPS
Material demand in terms of national product is huge, and corresponding product then needs to carry out different degrees of secondary injection adhering to reach product
Different feel demands.
Both polar group is contained as material and thermoplastic polyester PET, PBT for polar functionalities as PC, ABS
Group has for certain crystallinity material again, is carried out usually using the thermoplastic elastomer system of thermoplastic polyurethane (TPU) system
Secondary injection adhering.
POM and PA are to contain on polar group, and molecular backbone not having that side chain, density be high, crystallinity is high on strand
Linear polymer material.POM backbone structures are simple, strand is extremely regular, soft, cause without side base etc. POM with it is general
Thermoplastic elastomer (TPE) poor compatibility, and its own has certain self-lubricating property, TPE melts are difficult quick paving when flowing through its surface
Launch and reach the effect that cladding is bonded.
Therefore, existing thermoplastic elastic material exist secondary injection adhering cladding polar functionalities material cohesive compared with
The shortcomings of difference, cladding defective tightness, so as to cause peel strength relatively low.
The content of the invention
Based on this, it is necessary to provide a kind of peel strength it is higher for secondary injection adhering thermoplastic elastic material and its
Preparation method.
A kind of thermoplastic elastic material for secondary injection adhering, according to the mass fraction, including：
Wherein, the block copolymer is selected from styrene ethylene butadiene-styrene elastomer, benzene second
At least one in alkene-butadiene-styrene block copolymer and styrene-butadiene block copolymer.
The above-mentioned thermoplastic elastic material for secondary injection adhering, uses styrene ethylene butadiene-styrene block
In copolymer elastomer, SBS and styrene-butadiene block copolymer at least
One kind is used as matrix resin, it is to avoid using the thermoplastic polyurethane of facile hydrolysis, and so as to be difficult moisture absorption, block copolymer is compared to connecing
More preferably, the cladding between material and engineering plastics is even closer, maleic anhydride for interface compatibility between graft copolymer and engineering plastics
Graft and block copolymer coordinate and can mutually run through between the melting interface of the material of opposed polarity, further improve secondary
The adhesive property of viscous product is penetrated, such that it is able to improve peel strength；Ethylene propylene diene rubber-polypropylene alloy thermoplastic elastomers
There is good elasticity, compression resistant morphotropism, resistance to environment, resistance to ag(e)ing, oil resistant solvent resistance, and with good feel, can
To improve the surface property of secondary injection adhering material so that material secondary injection adhering shaping feel is more comfortable, and can be largely
The surface brightness of secondary injection adhering molding mass is reduced so as to reach matt effect；Addition packing material can increase the intensity of material,
Reduce formed product when shrinkage factor to improve peel strength, while the cost of product can also be reduced.
Wherein in one embodiment, the mineral oil is selected from least in naphthenic oil and saturated straight chain alkane oil
Kind.
Wherein in one embodiment, maleic anhydride grafts are selected from HSBR-maleic anhydride grafts, ethene
At least one in octene copolymer-maleic anhydride grafts and PP-MAH graft.
Wherein in one embodiment, the mineral filler is selected from least in calcium carbonate, silica and barium sulfate
Kind.
Wherein in one embodiment, also including 0.05 part~1 part of antioxidant.
Wherein in one embodiment, the antioxidant is selected from three (2,4- di-tert-butyl-phenyl) phosphite esters, β-(3,5-
Di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid and four [β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid] seasons penta
At least one in four alcohol esters.
Wherein in one embodiment, also including 0.05 part~2 parts of lubricant.
Wherein in one embodiment, the lubricant is selected from least one in silicone master batch and erucyl amide.
A kind of preparation method of thermoplastic elastic material for secondary injection adhering, comprises the following steps：
According to the mass fraction, 55 parts~95 parts block copolymers and 2 parts~35 parts mineral oil are stirred, is placed at least
Obtain within 2 days the first mixture, the block copolymer be selected from styrene ethylene butadiene-styrene elastomer,
At least one in SBS and styrene-butadiene block copolymer；
By first mixture and 5 parts~40 parts of ethylene propylene diene rubber-polypropylene alloy thermoplastic elastomer (TPE) and 1 part
~20 parts of maleic anhydride grafts are uniformly mixed and obtain the second mixture；
Second mixture and 5 parts~20 parts of mineral filler are uniformly mixed and obtain pre-composition；And
Pre-composition extrusion, granulation are obtained the thermoplastic elastic material for secondary injection adhering.
Wherein in one embodiment, the pre-composition extrusion, granulation are carried out in double screw extruder, the twin-screw
The temperature of extruder is 180 DEG C~205 DEG C, and the rotating speed of screw rod is 270r/min~450r/min, and the draw ratio of screw rod is 48:1
~58:1.
Specific embodiment
Thermoplastic elastic material for secondary injection adhering and preparation method thereof is entered below in conjunction with specific embodiment
Row is further described in detail.
The thermoplastic elastic material for secondary injection adhering of one implementation method, includes according to mass fraction meter：
Block copolymer is selected from styrene ethylene butadiene-styrene elastomer (SEBS), styrene-fourth
At least one in styrene block copolymer (SBS) and styrene-butadiene block copolymer (SB).
SEBS has good weatherability, heat resistance, compression resistant morphotropism and excellent mechanical property.Preferably, SEBS
Selected from Chinese Yue Hua companies SEBS 503T, TaiWan, China Tai Xiang company SEBS 6151, Japanese Asahi Kasei Corporation SEBS N504,
At least one in TaiWan, China Li Changrong company SEBS 9551 and Ke Teng companies of U.S. SEBS G1651, other are public certainly
The SEBS of department or other trades mark can also meet requirement.
SBS can improve the interface compatibility of secondary injection adhering material and engineering plastics, make the Overmolded engineering plastics of material
It is even closer.Preferably, SBS be selected from TaiWan, China Qi Mei companies SBS PB5302, TaiWan, China Li Changrong company SBS 3546,
At least one in TaiWan, China Li Changrong company SBS 3566 and Yue Hua companies of China SBS YH792, certain other companies or
The SBS of other trades mark can also meet requirement.
Styrene-butadiene block copolymer (SB) is compared to the interface compatibility between graft copolymer and engineering plastics more
Good, the cladding between material and engineering plastics is even closer.Preferably, styrene-butadiene block copolymer (SB) is high two embedding
The styrene-butadiene block copolymer of segment structure content.Wherein in one embodiment, Styrene-Butadiene block copolymerization
Thing is selected from least one in Japan Asahi Chemical Industry L609 and TaiWan, China Qi Mei company PB5502, certain other companies or other boards
Number SB can also meet requirement.
Mineral oil can improve the mobility of the thermoplastic elastic material for secondary injection adhering, and have preferable resistance to Huang
Become performance.Wherein in one embodiment, mineral oil is selected from least one in naphthenic oil and saturated straight chain alkane oil.It is preferred that
, naphthenic oil is selected from least one in KN4010, KN4006.Saturated straight chain alkane oil be selected from 60N, 150N, 500N and
At least one in 600N.Preferably, kinematic viscosity is 120~180pa.s when the flash-point of mineral oil is higher than 200 DEG C, 40 DEG C.
In one of embodiment, mineral oil is selected from naphthenic oil, the 500N of Shuan Long companies of South Korea such as Kelamayi oil plant KNH4006
With at least one in platform modeling petrochemical industry 150N saturated straight chain alkane oils.
Ethylene propylene diene rubber-polypropylene alloy thermoplastic elastomers have good elasticity, compression resistant morphotropism, resistance to ring
Border, resistance to ag(e)ing, oil resistant solvent resistance, and with good feel, secondary injection adhering thermoplastic elastic material can be improved
Surface property to cause that secondary injection adhering thermoplastic elastic material secondary injection adhering is molded feel more comfortable, and can be largely
Ground reduces the surface brightness of secondary injection adhering thermoplastic elastic material so as to reach matt effect.Ethylene propylene diene rubber-polypropylene
Alloy thermoplastic elastomer (TPE) temperature limit is wide (- 60-150 DEG C), and soft durometer has a wide range of application (25A-54D), easy dyeing
Advantage greatly improves the free degree of product design.Wherein in one embodiment, ethylene propylene diene rubber-polypropylene alloy thermoplasticity
Elastomer be ethylene propylene diene rubber and polypropylene during melt blending, ternary second is caused by dynamic vulcanization and screw rod shearing
Third rubber forms crosslinking and the material as dispersed phase distribution in polypropylene continuous phase, it is of course also possible to use other are prepared
Method is obtained.Preferably, ethylene propylene diene rubber-polypropylene alloy thermoplastic elastomer (TPE) is selected from santoprene company of U.S. 8211-
At least one in 55M300, Mitsui W600NE and Sheng Jialun rubber and plastic GP610-55.Wherein in one embodiment, three
First EP rubbers-polypropylene alloy thermoplastic elastomer (TPE) is the GP610-55 of Sheng Jialun rubber and plastics (Shenzhen) limited company, excellent
Choosing, the hardness of ethylene propylene diene rubber-polypropylene alloy thermoplastic elastomer (TPE) is 55A, melt index is 6.08g/10min.
Maleic anhydride grafts can mutually run through as compatilizer between two melting interfaces of the material of opposed polarity,
So as to improve adhesive property of the thermoplastic elastic material for corresponding Overmolded product for secondary injection adhering.Wherein one
In individual embodiment, maleic anhydride grafts are selected from HSBR-maleic anhydride grafts (SEBS-g-MAH), ethylene octene
In copolymer-maleic anhydride grafts (POE-g-MAH) and PP-MAH graft (PP-g-MAH) at least one
Kind.Preferably, maleic anhydride grafts are selected from FG1901, the GR216 of DOW companies of the U.S. and the Japan of Kraton companies of the U.S.
At least one in the TU5265 of Kuraray companies.
Mineral filler can increase the intensity of material, shrinkage factor when reducing formed product can also reduce product into
This.Mineral filler can be packing material commonly used in the trade.Wherein in one embodiment, mineral filler is selected from calcium carbonate, two
At least one in silica and barium sulfate.Preferably, calcium carbonate is selected from least in precipitated calcium carbonate and powdered whiting
Kind.Preferably, the particle diameter of mineral filler is 800~1500 mesh.
Wherein in one embodiment, the above-mentioned thermoplastic elastic material for secondary injection adhering also includes 0.05 part~1
The antioxidant of part.Antioxidant can prevent polymeric material from aoxidizing qualitative change.Preferably, antioxidant is selected from three (2,4- di-tert-butyls
Base) phosphite ester (irgasfos 168), the β-positive octadecanol ester (antioxidant of (3,5- di-tert-butyl-hydroxy phenyls) propionic acid
1076), at least one in four [β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid] pentaerythritol esters (antioxidant 1010).
Wherein in one embodiment, the above-mentioned thermoplastic elastic material for secondary injection adhering also includes 0.05 part~2
The lubricant of part.The Main Function of lubricant is the surface characteristic for improving the thermoplastic elastic material for secondary injection adhering, drop
The frictionally damage of low-friction surface so that product is more prone to the demoulding.Preferably, lubricant is selected from silicone master batch and erucyl amide
In at least one.Preferably, lubricant is selected from the Atmer 1753 of the MB50-001 and Ciba companies of Dow Corning Corporation
It is at least one.
Wherein in one embodiment, for the thermoplastic elastic material of secondary injection adhering, according to the mass fraction, including：
The above-mentioned thermoplastic elastic material for secondary injection adhering, uses styrene ethylene butadiene-styrene block
The styrene-butadiene of copolymer elastomer, SBS and high diblock structural content
At least one in block copolymer is used as matrix resin, it is to avoid using the thermoplastic polyurethane of facile hydrolysis, so as to be difficult moisture absorption,
Block copolymer is more preferable compared to the interface compatibility between graft copolymer and engineering plastics, the cladding between material and engineering plastics
Even closer, maleic anhydride grafts and block copolymer coordinate and can mutually be passed through between the melting interface of the material of opposed polarity
Wear, the adhesive property of secondary injection adhering product is further improved, such that it is able to improve peel strength；Ethylene propylene diene rubber-polypropylene
Alloy thermoplastic elastomers have good elasticity, compression resistant morphotropism, resistance to environment, resistance to ag(e)ing, oil resistant solvent resistance, and
With good feel, the surface property of secondary injection adhering material can be improved so that material secondary injection adhering shaping feel it is more comfortable,
And the surface brightness of secondary injection adhering molding mass can be largely reduced so as to reach matt effect；Addition packing material can
To increase the intensity of material, shrinkage factor when reducing formed product to improve peel strength, while can also reduce product into
This.
The above-mentioned thermoplastic elastic material for secondary injection adhering is using the block copolymer of agent of low hygroscopicity as matrix material
Except with soft, anti-yellowing property it is good, processing technology is simple, adhesive property is good, product design is flexible, cold-resistant and resistance to
Outside hot property is excellent, make product reprocessabilty, recycling performance be improved, more environmental protection, high diblock knot
The styrene-butadiene front segment structure of structure content causes above-mentioned thermoplastic elastic material and various engineering for secondary injection adhering
Plastics have good compatibility, be more suitable for Overmolded chain containing phenyl ring, polar chain various general engineering plastics it is special
It is to show superior in the secondary injection adhering shaping of POM and PA material products；Simultaneously because TPV components are increased, the oil resistant of material
Solvent resistance is further improved.
Meanwhile, the above-mentioned thermoplastic elastic material for secondary injection adhering is without poisonous auxiliary agent and free phthalic acid
Salt, it disclosure satisfy that the requirement to the limitation of product heavy metal that country variant is formulated.Additionally, the above-mentioned thermoplastic for secondary injection adhering
Property elastomeric material can also meet the requirement of food and FAD (FDA) to food grade materials.Therefore, this is used for secondary shooting
Viscous thermoplastic elastic material is suitable for secondary injection adhering of all kinds of engineering plastics in different use fields and is molded.
The preparation method of the above-mentioned thermoplastic elastic material for secondary injection adhering, comprises the following steps：
S110, according to the mass fraction, 55 parts~95 parts block copolymers and 2 parts~35 parts mineral oil are stirred, and are put
Put at least 2 days and obtain the first mixture.
Wherein in an implementation method, stirring is carried out in horizontal mixer, stir speed (S.S.) be 30r/min~
120r/min。
Wherein in one embodiment, 5min~15min is stirred.
Wherein in one embodiment, place 2 days~4 days.
Wherein in one embodiment, 55 parts~90 parts block copolymers and 2 parts~35 parts mineral oil are stirred simultaneously
Sealed packaging device at least 2 days.
S120, by the first mixture and 5 parts~40 parts of ethylene propylene diene rubber-polypropylene alloy thermoplastic elastomer (TPE) and 1
Part~20 parts of maleic anhydride grafts are uniformly mixed and obtain the second mixture.
Wherein in an implementation method, stirring is carried out in horizontal mixer, stir speed (S.S.) be 30r/min~
120r/min。
Wherein in one embodiment, stir 3 minutes~7 minutes.
S130, second mixture and 5 parts~20 parts of mineral filler are uniformly mixed and obtain pre-composition.
Wherein in an implementation method, mixing time is 5min~15min.
Wherein in one embodiment, the thermoplastic elastic material for secondary injection adhering also includes 0.05 part~2 parts
Lubricant, adds 0.05 part~2 parts of lubricant simultaneously in the step.
Wherein in one embodiment, the thermoplastic elastic material for secondary injection adhering also includes 0.05 part~1 part
Antioxidant, adds 0.05 part~1 part of antioxidant simultaneously in the step.
S140, the thermoplastic elastic material that pre-composition extrusion, granulation are obtained for secondary injection adhering.
Wherein in an implementation method, pre-composition is extruded and granulation is carried out in double screw extruder, described pair of spiral shell
The temperature of bar extruder is 180 DEG C~205 DEG C, and rotating speed is 270r/min~450r/min.The draw ratio of double screw extruder is
48:1~58:1.
Wherein in one embodiment, pre-composition is poured into the hopper of parallel dual-screw extruding machine, by double spiral shells in the same direction
Bar is sheared and disperseed, pelletizing, crosses vibratory sieve, and drying, cooling, packaging obtains final product the thermoplastic elastic material for secondary injection adhering.
The preparation method technological process of the above-mentioned thermoplastic elastic material for secondary injection adhering is simple, to equipment requirement
It is low, it is adapted to large-scale industrial production；The preparation method technology elder generation of the above-mentioned thermoplastic elastic material for secondary injection adhering
Enter, using the elastomeric material production process in, can direct extrusion molding, be not required to high temperature vulcanized, extrusion is not poisonous
Gas is decomposed, and will not corrode production equipment, simplifies production technology, discarded after the tailing and use in production process
The recyclable recycling of thing.So that the small, energy consumption of preparation method investment is low；Due to double screw extruder have transfer efficiency it is high, point
Dissipate that mixed is strong, self-cleaning is good, material is the advantages of residence time destribution is uniform in machine, make the above-mentioned heat for secondary injection adhering
The efficiency of the preparation method of thermoplastic elastomer material is improved.
It is below specific embodiment.
Number is parts by weight in following examples.Following examples are not contained unless otherwise specified, then to be removed and can not keep away
Other beyond the impurity exempted from are not known the component pointed out.
Embodiment 1
The SBS PB5502 of the SEBS YH503T of 9 weight portions and 63 weight portions are put into horizontal mixer, are uniformly added into
The mineral oil 150N of 5 weight portions, stirring 10min obtains the first mixture, after the first mixture is packed, places 2 days.
First mixture is put into horizontal mixer, the ethylene propylene diene rubber-polypropylene alloy thermoplastic of 5 weight portions is added
Property elastomer GP610-55, the thermoplastic styrene butadiene rubber-maleic anhydride grafts FG1901 of 13 weight portions, stirring 5min obtains the
Two mixtures.
Powdered whiting, 0.1 weight portion irgasfos 168, the 0.05 weight portion antioxygen of 5 weight portions are added to the second mixture
Agent 1076,0.15 weight portion erucyl amide, stirring 10min obtain pre-composition to well mixed.
The pre-composition is placed in extrusion, pelletizing in parallel dual-screw extruding machine, the thermoplasticity for secondary injection adhering is obtained final product
Elastomeric material.
Embodiment 2
The SBS 3546 of the SBS PB5502 of 50 weight portions and 10 weight portions is put into horizontal mixer, is uniformly added into
The mineral oil KNH4006 of 2 weight portions, stirring 10min obtains the first mixture, after the first mixture is packed, places 5 days.
First mixture is put into horizontal mixer, the ethylene propylene diene rubber-polypropylene alloy heat of 20 weight portions is added
Thermoplastic styrene butadiene rubber-maleic anhydride grafts the FG1901 of thermoplastic elastic GP610-55,13 weight portions, stirring 5min is obtained
Second mixture.
Powdered whiting, 0.1 weight portion irgasfos 168, the 0.05 weight portion antioxygen of 5 weight portions are added to the second mixture
Agent 1076,0.2 weight portion lubricant erucyl amide, stirring 10min obtain pre-composition to well mixed.
The pre-composition is poured into the hopper of parallel dual-screw extruding machine, is sheared by parallel dual-screw and disperseed, cut
Grain, crosses vibratory sieve, and drying, cooling, packaging obtains final product the thermoplastic elastic material for secondary injection adhering.
Embodiment 3
The SBS PB5502 of the SEBS G1651 of 10 weight portions and 70 weight portions are put into horizontal mixer, it is uniform to add
Enter the mineral oil 150N of 4 weight portions, stirring 10min obtains the first mixture, after the first mixture is packed, place 4 days.
First mixture is put into horizontal mixer, the W600NS (ethylene propylene diene rubbers-polypropylene of 6 weight portions are added
Alloy thermoplastic elastomer (TPE)) and 8 parts of GR216 (maleic anhydride grafts), stirring 5min obtain the second mixture.
The silica and 0.1 weight portion antioxidant 1010, the profit of 0.1 weight portion of 6 weight portions are added to the second mixture
Lubrication prescription erucyl amide, stirring 10min obtains pre-composition to well mixed.
The pre-composition is poured into the hopper of parallel dual-screw extruding machine, is sheared by parallel dual-screw and disperseed, cut
Grain, crosses vibratory sieve, and drying, cooling, packaging obtains final product the thermoplastic elastic material for secondary injection adhering.
Embodiment 4
The SBS PB5502 of the SEBS G1651 of 10 weight portions and 80 weight portions are put into horizontal mixer, it is uniform to add
Enter the mineral oil 150N of 2 weight portions, stirring 10min obtains the first mixture, after the first mixture is packed, place 4 days.
First mixture is put into horizontal mixer, the W600NS (ethylene propylene diene rubbers-polypropylene of 5 weight portions are added
Alloy thermoplastic elastomer (TPE)) and 2 parts of GR216 (maleic anhydride grafts), stirring 5min obtain the second mixture.
The silica and 0.1 weight portion antioxidant 1010, the profit of 0.1 weight portion of 5 weight portions are added to the second mixture
Lubrication prescription erucyl amide, stirring 10min obtains pre-composition to well mixed.
The pre-composition is poured into the hopper of parallel dual-screw extruding machine, is sheared by parallel dual-screw and disperseed, cut
Grain, crosses vibratory sieve, and drying, cooling, packaging obtains final product the thermoplastic elastic material for secondary injection adhering.
Embodiment 5
The PB5502 (block copolymer) of the PB5302 of 40 weight portions and 15 weight portions is put into horizontal mixer, uniformly
The KN4006 (mineral oil) of 35 weight portions is added, stirring 10min obtains the first mixture, after the first mixture is packed, place 4
My god.
First mixture is put into horizontal mixer, the GP610-55 (ethylene propylene diene rubbers-poly- third of 40 weight portions are added
Alkene alloy thermoplastic elastomer (TPE)) and 1 part of GR216 (maleic anhydride grafts), stirring 5min obtain the second mixture.
Calcium carbonate (mineral filler) and 0.5 weight portion antioxidant 1010 and 0.5 of 20 weight portions are added to the second mixture
The lubricant silicone master batch of 168,2 weight portions of weight portion, stirring 10min obtains pre-composition to well mixed.
The pre-composition is poured into the hopper of parallel dual-screw extruding machine, is sheared by parallel dual-screw and disperseed, cut
Grain, crosses vibratory sieve, and drying, cooling, packaging obtains final product the thermoplastic elastic material for secondary injection adhering.
Performance to the thermoplastic elastic material for secondary injection adhering of embodiment 1~5 is tested, as a result such as table 1
It is shown.
Table 1
The thermoplastic elastic material for secondary injection adhering of embodiment 1~5 is to polyformaldehyde (POM), styrene-fourth two
Alkene copolymer (K glue), impact resistance polystyrene (HIPS), acrylonitrile-butadiene-styrene copolymer (ABS) and nylon66 fiber
Plus fine (PA66+30% glass fibres (GF)) carries out peel strength test, as a result as shown in table 2.Wherein, peel strength reference
GB/T 7760-2003 testing standards are tested.Comparative example uses the thermoplasticity of Sheng Jialun rubber and plastics (Shenzhen) limited company
Elastomer secondary injection adhering is molded series contrast with the secondary injection adhering of product G P310-553A series.
Table 2
In table 2, comparative example is except ABS secondary injection adherings are than in addition to stronger, the corresponding engineering plastics of other secondary injection adherings cannot be good
Good is coated on surface.From table 2 it can be seen that the thermoplastic elastic material for secondary injection adhering and poly- first of embodiment 1~5
Aldehyde (POM), styrene-butadiene copolymer (K glue), impact resistance polystyrene (HIPS), acrylonitrile-butadiene-styrene (ABS)
Copolymer (ABS) and nylon66 fiber add the peel strength of fine (PA66+30%GF) higher.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of thermoplastic elastic material for secondary injection adhering, it is characterised in that according to the mass fraction, including：
Wherein, the block copolymer is selected from styrene ethylene butadiene-styrene elastomer, styrene-fourth
At least one in styrene block copolymer and styrene-butadiene block copolymer.
2. the thermoplastic elastic material for secondary injection adhering according to claim 1, it is characterised in that the mineral oil
Selected from least one in naphthenic oil and saturated straight chain alkane oil.
3. the thermoplastic elastic material for secondary injection adhering according to claim 1, it is characterised in that maleic anhydride connects
Branch thing is selected from HSBR-maleic anhydride grafts, POE-maleic anhydride grafts and polypropylene-horse
At least one in maleic anhydride grafted thing.
4. the thermoplastic elastic material for secondary injection adhering according to claim 1, it is characterised in that the mineral are filled out
Material is selected from least one in calcium carbonate, silica and barium sulfate.
5. the thermoplastic elastic material for secondary injection adhering according to claim 1, it is characterised in that also including 0.05
Part~1 part of antioxidant.
6. the thermoplastic elastic material for secondary injection adhering according to claim 5, it is characterised in that the antioxidant
Selected from three (2,4- di-tert-butyl-phenyls) phosphite esters, the β-positive octadecanol ester of (3,5- di-tert-butyl-hydroxy phenyls) propionic acid
And four at least one in [β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid] pentaerythritol ester.
7. the thermoplastic elastic material for secondary injection adhering according to claim 1, it is characterised in that also including 0.05
Part~2 parts of lubricant.
8. the thermoplastic elastic material for secondary injection adhering according to claim 7, it is characterised in that the lubricant
Selected from least one in silicone master batch and erucyl amide.
9. the preparation method of a kind of thermoplastic elastic material for secondary injection adhering, it is characterised in that comprise the following steps：
According to the mass fraction, 55 parts~95 parts block copolymers and 2 parts~35 parts mineral oil are stirred, is placed at least 2 days
The first mixture is obtained, the block copolymer is selected from styrene ethylene butadiene-styrene elastomer, benzene second
At least one in alkene-butadiene-styrene block copolymer and styrene-butadiene block copolymer；
By first mixture and 5 parts~40 parts of ethylene propylene diene rubber-polypropylene alloy thermoplastic elastomer (TPE) and 1 part~20
Part maleic anhydride grafts are uniformly mixed and obtain the second mixture；
Second mixture and 5 parts~20 parts of mineral filler are uniformly mixed and obtain pre-composition；And
Pre-composition extrusion, granulation are obtained the thermoplastic elastic material for secondary injection adhering.
10. the thermoplastic elastic material for secondary injection adhering according to claim 9, it is characterised in that the premix
Thing extrusion, granulation are carried out in double screw extruder, the temperature of the double screw extruder is 180 DEG C~205 DEG C, and screw rod turns
Speed is 270r/min~450r/min, and the draw ratio of screw rod is 48:1~58:1.
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| CN110746915A (en) * | 2019-10-29 | 2020-02-04 | 张家港市美特高分子材料有限公司 | TPE material for POM bonding and preparation method thereof |
| CN110845855A (en) * | 2019-11-27 | 2020-02-28 | 新钻塑料科技（上海）有限公司 | Thermoplastic elastomer material for secondary injection bonding with polyketone material and preparation method thereof |
| CN111690347A (en) * | 2019-03-12 | 2020-09-22 | 苏州市朗腾工贸有限公司 | Polymer material for improving TPE (thermoplastic elastomer) injection-bonding PPO (polyphenylene oxide) bonding force |
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| CN113817284A (en) * | 2021-09-22 | 2021-12-21 | 张家港市美特高分子材料有限公司 | Thermoplastic elastomer leftover material for bonding ethylene propylene diene monomer and preparation method thereof |
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Application publication date: 20170707 |