CN107099153A - A kind of TPE composites for coating and bonding PET - Google Patents
A kind of TPE composites for coating and bonding PET Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- 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
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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
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
-
- 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
- B29C2948/9259—Angular velocity
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- 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
-
- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- 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
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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
A kind of TPE composites for coating and bonding PET, including thermoplastic elastomer (TPE), plasticizer, engineering plastic, compatilizer, filler and auxiliary agent, raw material are made up of the component of following parts by weight：Thermoplastic elastomer (TPE)：30 40 parts, plasticizer：5 25 parts, engineering plastic：15 25 parts, compatilizer：10 20 parts, filler：10 15 parts, auxiliary agent：0.01 0.1 parts.Thermoplastic elastomer (TPE) and engineering plastic combination are employed in TPE alloy systems to increase the polarity and temperature tolerance of system to improve TPE composites and PET interface cohesive force, solve the problem of TPE quadric injection moulds bonding PET is easily peeled off.The intensity, modulus and heat resistance of TPE alloy materials are improved simultaneously, while also reducing overmolded PET temperature, its practicality and commercial value is added.The compatilizer of use, improves the compatibility of TPE alloy systems, not only improves intensity, the modulus of composite, and further improves TPE alloys and PET adhesive strength.
Description
Technical field
The present invention relates to composite and preparation method thereof technical field, and in particular to a kind of for coating and bonding PET's
TPE composites.
Background technology
PET is commonly called as polyester resin, and it is the condensation polymer of terephthalic acid (TPA) and ethylene glycol, and thermoplasticity is referred to as together with PBT
Polyester, or saturated polyester.Nineteen forty-six, Britain delivered first patent for preparing PET, during Britain's ICI formula are completed within 1949
After examination, but du pont company's purchase patent, nineteen fifty-three establishes process units, and industrialized production is realized at first in the world.Just
Phase PET is nearly all used for synthetic fibers.Since the eighties, PET has breakthrough development as engineering plastics, develops into succession
Core agent and crystallization promoter, current PET and PBT is together as thermoplastic polyester, as one of five large-engineering plastics.PET points are
Fiber polyester chip and non-fiber grade polyester chip.1. fiber-grade polyester is used to manufacture terylene short fiber peacekeeping polyester filament, is
Supply the raw material of polyster fibre enterprise processing fiber and Related product.Terylene is used as the maximum kind of yield in chemical fibre.2. non-fibre
Dimension level polyester also has the purposes such as a bottle class, film, is widely used in the neck such as packing business, electronic apparatus, health care, building, automobile
Domain, wherein packaging is the maximum non-fine application market of polyester, while being also the fastest-rising fields of PET.
It is used as packaging material PET advantages:
1. there is good mechanical property, impact strength is 3-5 times of other films, and folding resistance is good；
2. oil resistant, resistance to fatty, resistance to olefin(e) acid, diluted alkaline, resistance to most of solvents；
3. with excellent high- and low-temperature resistance performance, it can be used for a long time in 120 DEG C of temperature ranges, short-period used is resistant to 150 DEG C high
Temperature, is resistant to -70 DEG C of low temperature, and influence very little to its mechanical performance during high and low temperature；
4. gas and vapor permeability are low, existing excellent resistance gas and water, oil and peculiar smell performance；
5. transparency is high, ultraviolet can be stopped, glossiness is good；
6. nontoxic, tasteless, wholesomeness is good, can be directly used for packaging for foodstuff.
TPE (Thermoplastic Elastomer) Chinese thermoplastic elastomer (TPE).It is a kind of height with rubber
Elasticity, deep drawing quality, high resilience, the machining feature with thermoplastic, environment-protecting and non-poisonous safety, hardness adjustable extent
Width, on-slip, soft-touch is comfortable, and weatherability, fatigue resistance and temperature tolerance are good, and processing characteristics is superior, without vulcanization, can circulate
The features such as using cost is reduced.Both it can individually be molded, can be glued again with the thermoplastic such as PP, PE, PC, PS, ABS, PCTG, PET
Close cladding.
TPE had both had the processing characteristics of thermoplastic, had the physical property of vulcanization rubber again, combined thermoplasticity modeling
The advantage of material and traditional rubber.The field for being pertaining only to vulcanize rubber originally is just being captured without restraint.In the recent decade, TPE material is in life
The industries such as product, electronic apparatus, packaging material, communication and automobile industry are applied flexibly to be widely adopted.
It is overmolded（Over Molding）：Secondary injection molding, is commonly called as encapsulated.It is a kind of many by the progress of different die cavitys
Secondary injection molding process.The first material carries out typical single injection moulding, and then part sends into next different die cavity,
Carrying out the injection moulding of second of material.Wherein, the first injection material is referred to as base material, typically PP/ABS/PC/PET/PA
Deng engineering plastics；Second of injection material is referred to as covering material, usually thermoplastic elastic material, such as TPU/TPEE/TPR/
TPV/TPE composites etc..
By overmolded technology, thermoplastic elastomer (TPE) and rigid substrate, which are combined, can not only make product surface full of soft
Sense, can also increase product functionality and added value, such as noise abatement, damping, anticollision, anti-skidding, comfort.Brought for product design
The bigger free degree.
At present, further the cementability and reduction material cost of raising thermoplastic elastomer (TPE) and thermoplastic engineering plastic are still
The emphasis of technological development.
Utilization at present on the market with PET and TPE bonding claddings is more and more, as packaging material can be from TPE claddings
Mode strengthens feel, and auto parts machinery can play damping, deadening by the way of TPE bonding claddings.And PET is added due to itself
Work temperature is higher, generally at 260 °C -290 °C or so, and the features such as easy moisture absorption, and the temperature tolerance of thermoplastic elastic is not generally high,
Different degrees of decomposing phenomenon can all occur at a temperature of 240-250 °C in most of TPE material.The difference of both polarity and
Durothermic difference, greatly perplexs, this is also that the present invention needs key problems-solving to both bonding clad strip.
The content of the invention
The invention aims to overcome the weak point that above-mentioned prior art is present, and provide a kind of viscous for coating
Close PET TPE composites.
The technical solution adopted by the present invention is：A kind of TPE composites for coating and bonding PET, including thermoplastic elastomehc
Property body, plasticizer, engineering plastic, compatilizer, filler and auxiliary agent, raw material are made up of the component of following parts by weight：Thermoplastic elastomehc
Property body：30-40 parts, plasticizer：5-25 parts, engineering plastic：15-25 parts, compatilizer：10-20 parts, filler：10-15 parts, help
Agent：0.01-0.1 parts.
Described thermoplastic elastomer (TPE) is polystyrene-hydrogenated butadiene-styrene copolymer（SEBS）, styrene-fourth
Diene copolymers（SBS）, TPUE（TPU）, polyolefin elastomer（TPV/POE/POP）, polyester elastomer
（TPEE）In one or more combination thing.
Described plasticizer is the one or more combination thing in naphthenic oil, paraffin hydrocarbon ils；
Described engineering plastic is polyamide（PA）, makrolon（PC）, polyformaldehyde（POM）, polyphenylene oxide（PPO）In one kind or
Several compositions.
Described compatilizer is the polypropylene that maleic anhydride is grafted（PP）, the ethylene-octene copolymer of maleic anhydride grafting
（POE), styrene-hydrogenated butadiene-styrene copolymer of maleic anhydride grafting（SEBS）, the low-density of maleic anhydride grafting
Polyethylene（LDPE）, polymethyl methacrylate grafted polyethylene（PE）One or more combination thing in elastomer.
Described filler is the one or more combination in calcium carbonate, clay, silica, talcum powder, titanium dioxide
Thing.
Described auxiliary agent is the one or more combination in antioxidant, UV absorbents, lubricant, releasing agent, antistatic additive
Thing.
A kind of preparation method of TPE composites for coating and bonding PET, preparation method is as follows：
1st, raw material is weighed by above-mentioned weight proportion；
2nd, processing is dried in engineering plastic；
3rd, double screw extruder will be entered after thermoplastic elastomer (TPE), plasticizer, engineering plastic, compatilizer, auxiliary agent uniformly mixing, plus
Work condition is as follows：One area's temperature：130-150 DEG C, two area's temperature：220-240 DEG C, three area's temperature：220-240 DEG C, four area's temperature：
220-240 DEG C, five area's temperature：180-200 DEG C, six area's temperature：160-180 DEG C, seven area's temperature：150-170 DEG C, head temperature：
150-170 DEG C, 35-45 revs/min of main frame frequency；
4th, TPE composites are made after cooling, pelletizing, drying after double screw extruder is extruded；
5th, semi-finished articles are disposably first molded into PET, then using semi-finished articles as inserts, pass through overmolded technology secondary injection
TPE composites are moulded, the bonding of two kinds of materials is realized, PET and TPE composites must be predrying before injection, it is to avoid has moisture content
Influence bond effect.
The beneficial effects of the invention are as follows：With advantages below：1st, thermoplastic elastomer (TPE) prepared by the present invention（TPE）Alloy energy
Enough accomplish that the bonding completely with PET is encapsulated by overmolded technology, make that PET application is more diversified, hommization.
2nd, thermoplastic elastomer (TPE) and engineering plastic combination is employed in TPE alloy systems to increase the polarity of system and resistance to
Warm nature is so as to improving TPE composites and PET interface cohesive force, and solve that TPE quadric injection moulds bonding PET is easily peeled off asks
Topic.The intensity, modulus and heat resistance of TPE alloy materials are improved simultaneously, while overmolded PET temperature is also reduced,
Add its practicality and commercial value.
3rd, the polypropylene of maleic anhydride grafting is employed in component（PP）, maleic anhydride grafting ethylene-octene copolymer
（POE), styrene-hydrogenated butadiene-styrene copolymer of maleic anhydride grafting（SEBS）, maleic anhydride grafting low-density
Polyethylene（LDPE）With polymethyl methacrylate grafted polyethylene（PE）Elastomer improves TPE alloy bodies as compatilizer
The compatibility of system, not only improves intensity, the modulus of composite, and it is bonding with PET strong further to improve TPE alloys
Degree.
4th, while thermoplastic elastomer (TPE)（TPE) alloy material has simple processing, energy-conserving and environment-protective, is easy to color matching, corner to give up
Material can recycling the advantages of.
Brief description of the drawings
Fig. 1 is processing process figure of the present invention
Embodiment：
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；To those skilled in the art, accompanying drawing
In some known features and its explanation may omit and will be understood by.
A kind of TPE composites for coating and bonding PET, including thermoplastic elastomer (TPE), plasticizer, engineering plastic, phase
Hold agent, filler and auxiliary agent, raw material is made up of the component of following parts by weight：
Thermoplastic elastomer (TPE)：30-40 parts, described thermoplastic elastomer (TPE) is polystyrene-hydrogenated butadiene-styrene copolymer
（SEBS）, SB（SBS）, TPUE（TPU）, polyolefin elastomer（TPV/POE/
POP）, polyester elastomer（TPEE）In one or more combination thing；
Plasticizer：5-25 parts, described plasticizer is the one or more combination thing in naphthenic oil, paraffin hydrocarbon ils；
Engineering plastic：15-25 parts, described engineering plastic is polyamide（PA）, makrolon（PC）, polyformaldehyde（POM）, polyphenyl
Ether（PPO）In one or more combination thing；
Compatilizer：10-20 parts, described compatilizer is the polypropylene that maleic anhydride is grafted（PP）, the ethene that maleic anhydride is grafted-
Octene copolymer（POE), styrene-hydrogenated butadiene-styrene copolymer of maleic anhydride grafting（SEBS）, maleic anhydride connects
The low density polyethylene (LDPE) of branch（LDPE）, polymethyl methacrylate grafted polyethylene（PE）One or more combination in elastomer
Thing；
Filler：10-15 parts, described filler is one kind in calcium carbonate, clay, silica, talcum powder, titanium dioxide
Or several compositions.；
Auxiliary agent：0.01-0.1 parts, described auxiliary agent is one in antioxidant, UV absorbents, lubricant, releasing agent, antistatic additive
Plant or several compositions.
A kind of preparation method of TPE composites for coating and bonding PET, preparation method is as follows：
1st, raw material is weighed by above-mentioned weight proportion；
2nd, processing is dried in engineering plastic；
3rd, double screw extruder will be entered after thermoplastic elastomer (TPE), plasticizer, engineering plastic, compatilizer, auxiliary agent uniformly mixing, plus
Work condition is as follows：One area's temperature：130-150 DEG C, two area's temperature：220-240 DEG C, three area's temperature：220-240 DEG C, four area's temperature：
220-240 DEG C, five area's temperature：180-200 DEG C, six area's temperature：160-180 DEG C, seven area's temperature：150-170 DEG C, head temperature：
150-170 DEG C, 35-45 revs/min of main frame frequency；
4th, TPE composites are made after cooling, pelletizing, drying after double screw extruder is extruded；
5th, semi-finished articles are disposably first molded into PET, then using semi-finished articles as inserts, pass through overmolded technology secondary injection
TPE composites are moulded, the bonding of two kinds of materials is realized, PET and TPE composites must be predrying before injection, it is to avoid has moisture content
Influence bond effect.
Specific embodiment is with reference to table 1, table 2 and table 3
Table 1
Table 2
Table 3：
Remarks：1st, E is excellent, and G is good, and P is general, and F is poor.
2nd, 240 DEG C are overmolded temperature.
3rd, 1. thermoplastic elastomer (TPE) is the polystyrene-hydrogenated butadiene-styrene copolymer in platform rubber Nantong, and the trade mark is
Taipol-SEBS 6151；Polystyrene-hydrogenated butadiene-styrene copolymer that 2. thermoplastic elastomer (TPE) rises for section, the trade mark
For the H of Kraton G 1651；3. thermoplastic elastomer (TPE) is Amada Co., Ltd.'s Kuraray（Kuraray）Polystyrene-hydrogenation
BS, the trade mark is SEPTON 4055；4. thermoplastic elastomer (TPE) is polystyrene-hydrogenation of Yueyang petrochemical industry
BS, the trade mark is YH503.
4th, 1. described plasticizer is the grand RX PW-90 of state；2. plasticizer is Kelamayi RX
KN4010；3. plasticizer is platform modeling RX 500N；4. plasticizer is the grand RX MCP-32 of state；5. plasticizer be
Kelamayi RX KN4006；Plasticizer.
5th, the nylon 6 contains nylon chips for collection, and the trade mark is Zisamide-TP4208.
6th, 1. described polyester elastomer is South Korea Cologne（KOLON）KP3340；2. polyester elastomer is South Korea Cologne
（KOLON）KP3355；3. polyester elastomer is Taiwan Changchun 1140LH；4. polyester elastomer is South Korea SK G140D, polyester bullet
Property body 5. be Dupont 4056.
7th, 1. described compatilizer is the maleic anhydride-g-SBS of Asahi Chemical Industry, and the trade mark is TUFTECTM M1913；It is compatible
2. agent rises GF-1901 for section of the U.S.；3. compatilizer is maleic anhydride graft PP, and the trade mark is DuPont Fusabond P353；Phase
4. hold agent is Kuraray compatilizer TU-5265.
8th, described filler is calcium carbonate Mei Litai stone flours, and specification is 2300 ~ 2500 mesh.
9th, described auxiliary agent is antioxidant-vapour bar AO-1010.
Referring now to upper table one to table three, analysis result is understood：
1st, other components are identical in contrast TPE 1/2/3/4,4 composite-material formulas of composite-material formula, and difference is to use
The thermoplastic elastomer (TPE) of the different trades mark.Analysis understands thermoplastic elastomer (TPE) tensile strength 2. and elongation preferably, thermoplastic elastomehc
Property body is 4. worst；4 composite-material formulas all have excellent adhesive effect to PET simultaneously；
2nd, other components are identical in contrast TPE 5/6/7/8/9,5 composite-material formulas of composite-material formula, and difference is
With the plasticizer of the different trades mark.Analysis understands that the tensile strength of plasticizer 3. is best；And elongation is that plasticizer is 5. best, increase
3. modeling agent takes second place；3. plasticizer has an excellent adhesive effect to PET, plasticizer 2., plasticizer 4., 5. plasticizer have to PET
There is good adhesive effect；
3rd, other components are identical in contrast TPE 10/11/12/13,4 composite-material formulas of composite-material formula, and difference exists
In with different engineering plastics.Analysis understands, the tensile strength of engineering plastic 2. preferably, and elongation be engineering plastic 4. most
It is good；4. only engineering plastic has a good adhesive effect to PET, and engineering plastic 2., engineering plastic 3. and engineering plastic 5.
It is general to PET adhesive effect；
4th, other components are identical in contrast TPE 14/15/16/17,4 composite-material formulas of composite-material formula, and difference exists
In with different compatilizers.Analysis understands that preferably, the elongation of compatilizer 1. preferably, is not being added the intensity of compatilizer 4.
In the case of compatilizer, tensile strength and elongation are all very poor；4. PET adhesive effect only compatilizer is reached well, its
He is undesirable；
5th, component is identical in contrast TPE 19/20/21,3 composite-material formulas of composite-material formula, the difference is that engineering plastic
Consumption it is different.Analysis is understood, with the increase of engineering plastic consumption, and tensile strength is improved, and elongation declines；When engineering plastic is used
Measure for 35 parts when, it is poor to PET adhesive effects；It is good to PET adhesive effects when engineering plastic consumption is 110；Work as engineering plastic
It is excellent to PET adhesive effects when consumption is 200；
6th, component is identical in contrast TPE 22/23/24,3 composite-material formulas of composite-material formula, the difference is that the use of nylon 6
Amount is different.Analysis is understood, with the increase of the consumption of nylon 6, and tensile strength and elongation slightly decrease trend, influence unobvious；
It is general to PET adhesive effects when the consumption of nylon 6 is 0 part；It is good to PET adhesive effects when the consumption of nylon 6 is 40；When
It is excellent to PET adhesive effects when the consumption of nylon 6 is 130；
7th, component is identical in contrast TPE 25/26/27,3 composite-material formulas of composite-material formula, the difference is that compatilizer is 2.
Consumption is different.Analysis is understood, with the increase of compatilizer 2. consumption, and tensile strength and elongation have to be improved by a small margin；When compatible
It is good to PET adhesive effects when the consumption of agent 2. is 25 parts；, can to PET adhesive effects when the consumption of compatilizer 2. is 110
It is superior different；
8th, contrast TPE 28/29,3 composite-material formulas of composite-material formula in other components it is identical, unlike compatilizer it
Between collocation it is different.4. 2. compatilizer arrange in pairs or groups using better than the elongation that 3. 2. compatilizer arrange in pairs or groups with compatilizer with compatilizer,
Tensile strength is more or less the same；PET adhesive effects are attained by well；
9th, other components are identical in contrast TPE 30/31/32,3 composite-material formulas of composite-material formula, the difference is that being plasticized
The difference of agent 1. consumption.Analysis is understood, with the increase of plasticizer 1. consumption, and tensile strength declines, and elongation rises；But to PET
Adhesive effect does not influence.
In figure, description relation being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；Obviously, it is of the invention
Above-described embodiment is only intended to clearly illustrate example of the present invention, and is not the limit to embodiments of the present invention
It is fixed.For those of ordinary skill in the field, it can also make other various forms of on the basis of the above description
Change changes.There is no necessity and possibility to exhaust all the enbodiments.Within the spirit and principles of the invention
Any modifications, equivalent substitutions and improvements made etc., should be included within the protection domain of the claims in the present invention.
A kind of TPE composites for coating and bonding PET, including thermoplastic elastomer (TPE), plasticizer, engineering plastic, compatilizer,
Filler and auxiliary agent, raw material are made up of the component of following parts by weight：Thermoplastic elastomer (TPE)：30-40 parts, plasticizer：5-25 parts,
Engineering plastic：15-25 parts, compatilizer：10-20 parts, filler：10-15 parts, auxiliary agent：0.01-0.1 parts.In TPE alloy systems
In thermoplastic elastomer (TPE) and engineering plastic combination is employed to increase the polarity and temperature tolerance of system to improve TPE composites
With PET interface cohesive force, the problem of TPE quadric injection moulds bonding PET is easily peeled off is solved.Improve TPE alloy materials simultaneously
Intensity, modulus and the heat resistance of material, while also reducing overmolded PET temperature, add its practicality and business valency
Value.The compatilizer of use, improves the compatibility of TPE alloy systems, not only improves intensity, the modulus of composite, and
Further improve TPE alloys and PET adhesive strength.
Claims (8)
1. a kind of TPE composites for coating and bonding PET, it is characterised in that：Including thermoplastic elastomer (TPE), plasticizer, work
Journey plastic cement, compatilizer, filler and auxiliary agent, raw material are made up of the component of following parts by weight：Thermoplastic elastomer (TPE)：30-40 parts,
Plasticizer：5-25 parts, engineering plastic：15-25 parts, compatilizer：10-20 parts, filler：10-15 parts, auxiliary agent：0.01-0.1 parts.
2. a kind of TPE composites for coating and bonding PET according to claim 1, it is characterised in that：Described heat
Thermoplastic elastic is polystyrene-hydrogenated butadiene-styrene copolymer（SEBS）, SB（SBS）、
TPUE（TPU）, polyolefin elastomer（TPV/POE/POP）, polyester elastomer（TPEE）In one kind or
Several compositions.
3. a kind of TPE composites for coating and bonding PET according to claim 1, it is characterised in that：Described increasing
Modeling agent is the one or more combination thing in naphthenic oil, paraffin hydrocarbon ils.
4. a kind of TPE composites for coating and bonding PET according to claim 1, it is characterised in that：Described work
Journey plastic cement is polyamide（PA）, makrolon（PC）, polyformaldehyde（POM）, polyphenylene oxide（PPO）In one or more combination thing.
5. a kind of TPE composites for coating and bonding PET according to claim 1, it is characterised in that：Described phase
It is the polypropylene that maleic anhydride is grafted to hold agent（PP）, the ethylene-octene copolymer of maleic anhydride grafting（POE), maleic anhydride connects
Styrene-hydrogenated butadiene-styrene copolymer of branch（SEBS）, the low density polyethylene (LDPE) of maleic anhydride grafting（LDPE）, it is poly-
Methyl methacrylate-grafted polyethylene（PE）One or more combination thing in elastomer.
6. a kind of TPE composites for coating and bonding PET according to claim 1, it is characterised in that：Described fills out
It is the one or more combination thing in calcium carbonate, clay, silica, talcum powder, titanium dioxide to fill agent.
7. a kind of TPE composites for coating and bonding PET according to claim 1, it is characterised in that：Described helps
Agent is the one or more combination thing in antioxidant, UV absorbents, lubricant, releasing agent, antistatic additive.
8. a kind of preparation method of TPE composites for coating and bonding PET, it is characterised in that：Preparation method is as follows：
1st, raw material is weighed by above-mentioned weight proportion；
2nd, processing is dried in engineering plastic；
3rd, double screw extruder will be entered after thermoplastic elastomer (TPE), plasticizer, engineering plastic, compatilizer, auxiliary agent uniformly mixing, plus
Work condition is as follows：One area's temperature：130-150 DEG C, two area's temperature：220-240 DEG C, three area's temperature：220-240 DEG C, four area's temperature：
220-240 DEG C, five area's temperature：180-200 DEG C, six area's temperature：160-180 DEG C, seven area's temperature：150-170 DEG C, head temperature：
150-170 DEG C, 35-45 revs/min of main frame frequency；
4th, TPE composites are made after cooling, pelletizing, drying after double screw extruder is extruded；
5th, semi-finished articles are disposably first molded into PET, then using semi-finished articles as inserts, pass through overmolded technology secondary injection
TPE composites are moulded, the bonding of two kinds of materials is realized, PET and TPE composites must be predrying before injection, it is to avoid has moisture content
Influence bond effect.
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