CN106519635A - Surface scratch-resistant TPV composition capable of achieving secondary coating forming with ABS base material and preparation method thereof - Google Patents
Surface scratch-resistant TPV composition capable of achieving secondary coating forming with ABS base material and preparation method thereof Download PDFInfo
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- CN106519635A CN106519635A CN201610894253.7A CN201610894253A CN106519635A CN 106519635 A CN106519635 A CN 106519635A CN 201610894253 A CN201610894253 A CN 201610894253A CN 106519635 A CN106519635 A CN 106519635A
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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
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
The invention discloses a surface scratch-resistant TPV composition capable of achieving secondary coating forming with an ABS base material and a preparation method thereof. The TPV composition comprises the raw materials of 31%-63% of TPV, 25%-40% of thermoplastic polyester elastomer, 5%-8% of compatilizer, 2%-6% of ethylene-vinyl acetate copolymer and 5%-15% of ethylene-acrylic acid ionomer. The preparation method includes the following steps that (1) the thermoplastic polyester elastomer is dried; and (2) the thermoplastic polyester elastomer, the TPV, the compatilizer, the ethylene-vinyl acetate copolymer and the ethylene-acrylic acid ionomer are evenly mixed in proportion and then the mixture is placed into a parallel co-rotating twin-screw extruder for melt extrusion and pelleting. The surface scratch-resistant TPV composition disclosed by the invention not only has the heat resistance, ageing resistance and low compression permanent deformation of TPV materials but also has the excellent scratch resistance, and the TPV composition can achieve secondary coating with polar resin ABS. The preparation method is simple, the production process is easy to operate, and the surface scratch-resistant TPV composition can be widely used as an ABS secondary coating material with high requirements on the coating surface.
Description
Technical field
The present invention relates to a kind of and secondary Overmolded surface damage resistant TPV compositions of ABS substrate and preparation method thereof,
Belong to technical field of polymer materials.
Background technology
ABS resin is one of five big synthetic resin, its impact resistance, heat resistance, lower temperature resistance, chemical proofing and electricity
Gas excellent performance, has the advantages that easy processing, product size are stable, surface gloss is high, easy application is coloured, can carry out table
The secondary operation such as face metalling, plating, welding, hot pressing and bonding, are widely used in machinery, automobile, electronic apparatus, instrument instrument
The industrial circles such as table, weaving and building, are a kind of extremely wide thermoplastics of purposes.However, being held with instrument made by ABS resin
The surface of the products such as, handle hard smooth, lack body-sensing comfort level, need two to be carried out using thermoplastic elastomer (TPE) TPE to ABS
It is secondary to penetrate the feel that packet splicing is covered to increase ABS products.
TPE is mainly by the blending processing such as SBC SBS or its hydride SEBS and PP, rubber softening oil
Form.SBS contains double bond due to main chain, and weatherability is poor, and easily aging, SEBS is due to containing phenyl ring, resistance to ag(e)ing in strand
It is poor, and SBS and SEBS wearability and scratch resistance it is all very poor.Therefore, using the TPE material with SBS or SEBS as base material
ABS products obtained from secondary injection adhering are carried out to ABS, defect easily occurs in its clad surface, not only affect aesthetics and feel, and
Service life is shorter.
Technology of Dynamic Vulcanized is referred to makes the vulcanization of rubber in rubber and thermoplastic molten Blending Processes, as rubber exists
Also constantly mix with thermoplastic while sulfuration, therefore rubber is in thermoplastic continuous phase as dispersed phase distribution
In.The thermoplastic dynamic vulcanized EPT rubber elastomer TPV prepared using Technology of Dynamic Vulcanized, sulfuration
Ethylene propylene diene rubber be to be dispersed in polypropylene matrix with micron order, the elastomer not only have sulfuration EPDM
The high temperature resistant of rubber, ageing-resistant, low permanent compression set, it is wear-resisting the advantages of, also with polypropylene material can with thermoplasticity processing,
Recyclable the characteristics of, traditional TPE material can be replaced to be used for secondary injection adhering ABS resin in many fields.
At present, someone forms one layer of smooth surface by adding silicone damage resistant auxiliary agent in TPV in material surface,
So that product brightness after being rubbed or slightly being scratched will not occur significant change, but this actually simply gives people a kind of sense
Official's illusion, is not inherently eliminated the polishing scratch or cut of material surface.
The invention discloses a kind of and secondary Overmolded surface damage resistant TPV compositions of ABS substrate, both with TPV
The heat-resisting, ageing-resistant of material, low compression set, and with excellent scratch resistant performance, secondary bag can be carried out with ABS
Cover, be widely used as requiring clad surface in bis- cladding material of higher ABS.
The content of the invention
It is an object of the invention to provide a kind of and secondary Overmolded surface damage resistant TPV compositions of ABS substrate.
Another object of the present invention is to provide a kind of Overmolded surface damage resistant TPV secondary with ABS substrate combine
The preparation method of thing.
The technical solution used in the present invention is：
A kind of and secondary Overmolded surface damage resistant TPV compositions of ABS substrate, which is by following weight/mass percentage composition
Raw material is constituted：
TPV：31～63%；
Polyester-type thermoplastic elastomer：25～40%；
Compatilizer：5～8%；
Ethylene-vinyl acetate copolymer：2～6%；
Ethylene-propylene acids ionomer：5～15%.
Described TPV is EPT rubber dynamic vulcanization TPV.
The shore hardness of described EPT rubber dynamic vulcanization TPV is 35A～75A.
Described polyester elastomer is TPUE, at least one in thermoplastic polyester elastomer.
Described compatilizer is cyclic acid anhydride type compatilizer.
Described cyclic acid anhydride type compatilizer is at least one in EPDM-g-MAH, POE-g-MAH.
Weight/mass percentage composition >=28% of vinyl acetate in described ethylene-vinyl acetate copolymer.
Sodium salt, ethylene-acrylic acid copolymer of the described ethylene-propylene acids ionomer for ethylene-acrylic acid copolymer
Zinc salt, the sodium salt of ethylene-methacrylic acid copolymer, at least one in the zinc salt of ethylene-methacrylic acid copolymer.
The above-mentioned preparation method with the secondary Overmolded surface damage resistant TPV compositions of ABS substrate, including following step
Suddenly：
1) by polyester-type thermoplastic elastomer in 60～80 DEG C of dryings 4～8 hours；
2) by polyester-type thermoplastic elastomer, TPV, compatilizer, ethylene-vinyl acetate copolymer and ethylene-propylene acids
Ionomer is mixed in proportion, then is placed in parallel equidirectional two-screw extruder, and melting extrusion, granulation are obtained and ABS substrate
Secondary Overmolded surface damage resistant TPV compositions.
The screw slenderness ratio L/D of described double screw extruder is (40～52)：1, screw speed is 200～280rpm,
Extrusion temperature is 80～220 DEG C.
The present invention mechanism be：The present invention in the presence of bulking agent, by melting extrusion by the not good TPV of compatibility and
Polyester-type thermoplastic elastomer is effectively connected together, so as to the TPV compositions for obtaining having good adhesion with ABS substrate.
And add PUR level EVA and ethylene-propylene acids ionomer, when TPV surfaces are rubbed or slightly scratched, ethene-the third
The charged particle of olefin(e) acid class ionomer can be enriched in section part, section is drawn close because of electrostatic attraction mutually, while section part
EVA can carry out bonding reparation to perished surface, therefore, the secondary ABS for coating and obtaining is carried out using the TPV compositions of the present invention
The surface abrasion resistance scratch resistant performance of product is significantly improved, and considerably increases surface aesthetics and the use of secondary coating ABS product
Life-span.
The invention has the beneficial effects as follows：Secondary with the ABS substrate Overmolded surface damage resistant TPV compositions of the present invention
Both there is the heat-resisting, ageing-resistant of TPV material, low compression set, and with excellent scratch resistant performance, can be with polarity tree
Fat ABS carries out secondary cladding, and preparation method is simple, and production process is easy to operate, is widely used as higher to clad surface requirement
Bis- cladding material of ABS, are such as used as electric tool ABS handles cladding crust, coffee machine ABS handles cladding crust, electric shaver
ABS handles cladding crust etc..
Specific embodiment
A kind of and secondary Overmolded surface damage resistant TPV compositions of ABS substrate, which is by following weight/mass percentage composition
Raw material is constituted：
TPV：31～63%；
Polyester-type thermoplastic elastomer：25～40%；
Compatilizer：5～8%；
Ethylene-vinyl acetate copolymer：2～6%；
Ethylene-propylene acids ionomer：5～15%.
Preferably, described TPV is EPT rubber dynamic vulcanization TPV.
Preferably, the shore hardness of described EPT rubber dynamic vulcanization TPV is 35A～75A.
Preferably, described polyester elastomer is TPUE (TPU), thermoplastic polyester elastomer
(TPEE) at least one in.
It is further preferred that described TPUE is the thermoplasticity that BASF AG's trade mark is C65AHPM
Polyurethane elastomer, described thermoplastic polyester elastomer are the thermoplastic polyester elastomer that the LG company trade mark is 1028D.
Preferably, described compatilizer is cyclic acid anhydride type compatilizer.
Preferably, described cyclic acid anhydride type compatilizer is at least one in EPDM-g-MAH, POE-g-MAH.
It is further preferred that described cyclic acid anhydride type compatilizer is Ningbo NengZhiGuang New Materials Science Co., Ltd's trade mark
For the EPDM-g-MAH of MC512, Foshan Ge Bang macromolecules Science and Technology Ltd. trade mark for GB100 POE-g-MAH at least
It is a kind of.
Preferably, in described ethylene-vinyl acetate copolymer (EVA) vinyl acetate weight/mass percentage composition >=28%.
It is further preferred that it is the EVA of 40W, Taiwan that described ethylene-vinyl acetate copolymer is E.I.Du Pont Company's trade mark
The modeling company trade mark is at least one in the EVA of 7760H.
Preferably, sodium salt, ethylene-acrylic acid of the described ethylene-propylene acids ionomer for ethylene-acrylic acid copolymer
In the zinc salt of copolymer, the sodium salt of ethylene-methacrylic acid copolymer, the zinc salt of ethylene-methacrylic acid copolymer at least
It is a kind of.
It is further preferred that described ethylene-propylene acids ionomer is the second that E.I.Du Pont Company's trade mark is Surlyn8920
The sodium salt (Na-E/MAA) of alkene-methacrylic acid copolymer.
The above-mentioned preparation method with the secondary Overmolded surface damage resistant TPV compositions of ABS substrate, including following step
Suddenly：
1) by polyester-type thermoplastic elastomer in 60～80 DEG C of dryings 4～8 hours；
2) by polyester-type thermoplastic elastomer, TPV, compatilizer, ethylene-vinyl acetate copolymer and ethylene-propylene acids
Ionomer is mixed in proportion, then is placed in parallel equidirectional two-screw extruder, and melting extrusion, granulation are obtained and ABS substrate
Secondary Overmolded surface damage resistant TPV compositions.
Preferably, the screw slenderness ratio L/D of described double screw extruder is (40～52)：1, screw speed be 200～
280rpm, extrusion temperature are 80～220 DEG C.
The present invention is made further explanation and description with reference to specific embodiment.
Embodiment 1：
A kind of and secondary Overmolded surface damage resistant TPV compositions of ABS substrate, the following (quality hundred of its raw material components
Divide content)：
TPV (self-control, shore hardness 35A)：31%；
TPU (C65AHPM, BASF)：40%；
EPDM-g-MAH (MC512, the light of energy)：8%；
EVA (40W, Du Pont)：6%；
Na-E/MAA (Surlyn8920, Du Pont)：15%.
The preparation method of above-mentioned secondary with ABS substrate Overmolded surface damage resistant TPV compositions, including following step
Suddenly：
1) TPU is dried process, 80 DEG C of oven temperature, 4 hours drying times in vacuum drying oven；
2) by step 1) dried TPU, TPV, EPDM-g-MAH, EVA, Na-E/MAA mix in proportion, be placed in
Melting extrusion, granulation in parallel equidirectional two-screw extruder, obtain Overmolded surface damage resistant TPV secondary with ABS substrate
Composition.
The screw slenderness ratio L/D of described double screw extruder is 40:1, screw speed is 280rpm, screw zones and machine
Head temperature is 80,190,190,200,200,210,210,210,210,210/200 DEG C.
Embodiment 2：
A kind of and secondary Overmolded surface damage resistant TPV compositions of ABS substrate, the following (quality hundred of its raw material components
Divide content)：
TPV (self-control, shore hardness 45A)：40%；
TPU (C65AHPM, BASF)：35%；
EPDM-g-MAH (MC512, the light of energy)：6%；
EVA (40W, Du Pont)：4%；
Na-E/MAA (Surlyn8920, Du Pont)：15%.
The preparation method of above-mentioned secondary with ABS substrate Overmolded surface damage resistant TPV compositions, including following step
Suddenly：
1) TPU is dried process, 80 DEG C of oven temperature, 4 hours drying times in vacuum drying oven；
2) by step 1) dried TPU, TPV, EPDM-g-MAH, EVA and Na-E/MAA mix in proportion, be placed in
Melting extrusion, granulation in parallel equidirectional two-screw extruder, obtain Overmolded surface damage resistant TPV secondary with ABS substrate
Composition.
The screw slenderness ratio L/D of described double screw extruder is 44:1, screw speed is 280rpm, screw zones and machine
Head temperature is 80,190,200,210,220,220,220,210,210,210,210/200 DEG C.
Embodiment 3：
A kind of and secondary Overmolded surface damage resistant TPV compositions of ABS substrate, the following (quality hundred of its raw material components
Divide content)：
TPV (self-control, shore hardness 55A)：50%；
TPU (C65AHPM, BASF)：32%；
EPDM-g-MAH (MC512, the light of energy)：5%；
EVA (40W, Du Pont)：3%；
Na-E/MAA (Surlyn8920, Du Pont)：10%.
The preparation method of above-mentioned secondary with ABS substrate Overmolded surface damage resistant TPV compositions, including following step
Suddenly：
1) TPU is dried process, 70 DEG C of oven temperature, 8 hours drying times in vacuum drying oven；
2) by step 1) dried TPU, TPV, EPDM-g-MAH, EVA and Na-E/MAA mix in proportion, be placed in
Melting extrusion, granulation in parallel equidirectional two-screw extruder, obtain Overmolded surface damage resistant TPV secondary with ABS substrate
Composition.
The screw slenderness ratio L/D of described double screw extruder is 52:1, screw speed is 200rpm, screw zones and machine
Head temperature is 80,190,200,210,220,220,220,220,210,210,210,210,210/200 DEG C.
Embodiment 4：
A kind of and secondary Overmolded surface damage resistant TPV compositions of ABS substrate, the following (quality hundred of its raw material components
Divide content)：
TPV (self-control, shore hardness 65A)：63%；
TPU (C65AHPM, BASF)：25%；
POE-g-MAH (GB100, Ge Bang)：5%；
EVA (40W, Du Pont)：2%；
Na-E/MAA (Surlyn8920, Du Pont)：5%.
The preparation method of above-mentioned secondary with ABS substrate Overmolded surface damage resistant TPV compositions, including following step
Suddenly：
1) TPU is dried process, 70 DEG C of oven temperature, 8 hours drying times in vacuum drying oven；
2) by step 1) dried TPU, TPV, POE-g-MAH, EVA and Na-E/MAA mix in proportion, be placed in
Melting extrusion, granulation in parallel equidirectional two-screw extruder, obtain Overmolded surface damage resistant TPV secondary with ABS substrate
Composition.
The screw slenderness ratio L/D of described double screw extruder is 52:1, screw speed is 200rpm, screw zones and machine
Head temperature is 80,190,200,210,220,220,220,220,210,210,210,210,210/200 DEG C.
Embodiment 5：
A kind of and secondary Overmolded surface damage resistant TPV compositions of ABS substrate, the following (quality hundred of its raw material components
Divide content)：
TPV (self-control, shore hardness 70A)：40%；
TPEE (1028D, LG)：35%；
POE-g-MAH (GB100, Ge Bang)：6%；
EVA (7760H, platform modeling)：4%；
Na-E/MAA (Surlyn8920, Du Pont)：15%.
The preparation method of above-mentioned secondary with ABS substrate Overmolded surface damage resistant TPV compositions, including following step
Suddenly：
1) TPEE is dried process, 80 DEG C of oven temperature, 8 hours drying times in vacuum drying oven；
2) by step 1) dried TPEE, TPV, POE-g-MAH, EVA and Na-E/MAA mix in proportion, be placed in
Melting extrusion, granulation in parallel equidirectional two-screw extruder, obtain Overmolded surface damage resistant TPV secondary with ABS substrate
Composition.
The screw slenderness ratio L/D of described double screw extruder is 52:1, screw speed is 200rpm, screw zones and machine
Head temperature is 80,190,200,210,220,220,220,220,210,210,210,210,210/200 DEG C.
Comparative example 1：
A kind of general T PV composition, its raw material components are following (weight/mass percentage composition)：
TPV (self-control, shore hardness 45A)：75%；
POE-g-MAH (GB100, Ge Bang)：6%；
EVA (7760H, platform modeling)：4%；
Na-E/MAA (Surlyn8920, Du Pont)：15%.
The preparation method of above-mentioned general T PV composition, comprises the steps：
TPV, POE-g-MAH, EVA and Na-E/MAA are mixed in proportion, parallel equidirectional two-screw extruder is placed in
Middle melting extrusion, granulation, obtain TPV compositions.
The screw slenderness ratio L/D of described double screw extruder is 52:1, screw speed is 200rpm, screw zones and machine
Head temperature is 80,190,200,210,220,220,220,220,210,210,210,210,210/200 DEG C.
Comparative example 2：
A kind of general T PV composition, its raw material components are following (weight/mass percentage composition)：
TPV (self-control, shore hardness 55A)：63%；
TPU (C65AHPM, BASF)：29%；
POE-g-MAH (GB100, Ge Bang)：8%.
The preparation method of above-mentioned general T PV composition, comprises the steps：
1) TPU is dried process, 80 DEG C of oven temperature, 8 hours drying times in vacuum drying oven；
2) by step 1) dried TPU, TPV and POE-g-MAH mix in proportion, and is placed in parallel equidirectional two-screw
Melting extrusion, granulation in extruder, obtain TPV compositions.
The screw slenderness ratio L/D of described double screw extruder is 48:1, screw speed is 200rpm, screw zones and machine
Head temperature is 80,190,200,210,220,220,220,220,210,210,210,210/200 DEG C.
Comparative example 3：
A kind of general T PV composition, its raw material components are following (weight/mass percentage composition)：
TPV (self-control, shore hardness 65A)：54%；
TPEE (1028D, LG)：30%；
EVA (40W, Du Pont)：6%；
Na-E/MAA (Surlyn8920, Du Pont)：10%.
The preparation method of above-mentioned general T PV composition, comprises the steps：
1) TPU is dried process, 80 DEG C of oven temperature, 8 hours drying times in vacuum drying oven；
2) by step 1) dried TPU, TPV, EVA and Na-E/MAA mix in proportion, it be placed in parallel in the same direction double
Melting extrusion, granulation in screw extruder, obtain TPV compositions.
The screw slenderness ratio L/D of described double screw extruder is 44:1, screw speed is 200rpm, screw zones and machine
Head temperature is 80,190,200,210,220,220,220,220,210,210,210,210/200 DEG C.
The raw material composition of the TPV compositions in embodiment 1～5 and comparative example 1～3 is as shown in table 1, each component in table 1
Consumption is represented with mass fraction.
The raw material composition table of the TPV compositions in 1 embodiment 1～5 of table and comparative example 1～3
| TPV | TPU | TPEE | EPDM-g-MAH | POE-g-MAH | EVA | Na-E/MAA | |
| Embodiment 1 | 31 | 40 | 0 | 8 | 0 | 6 | 15 |
| Embodiment 2 | 40 | 35 | 0 | 6 | 0 | 4 | 15 |
| Embodiment 3 | 50 | 32 | 0 | 5 | 0 | 3 | 10 |
| Embodiment 4 | 63 | 0 | 25 | 0 | 5 | 2 | 5 |
| Embodiment 5 | 40 | 0 | 35 | 0 | 6 | 4 | 15 |
| Comparative example 1 | 75 | 0 | 0 | 0 | 6 | 4 | 15 |
| Comparative example 2 | 63 | 29 | 0 | 0 | 8 | 0 | 0 |
| Comparative example 3 | 54 | 0 | 30 | 0 | 0 | 6 | 10 |
Test case：
The TPV compositions that embodiment 1～5 and comparative example 1～3 are prepared are fabricated to into test piece respectively, while to ABS
Secondary cladding is carried out, then carries out performance test, test result is as shown in table 2.
The performance test data of the TPV compositions of 2 embodiment 1～5 of table and comparative example 1～3
From Tables 1 and 2：
1), after bis- claddings of TPV compositions prepared by embodiment 1～5 and ABS, adhesion strength is all higher than 3N/mm, and contrasts
Example 1 prepare TPV compositions it is less with the adhesion strength of ABS, only 0.12N/mm, and embodiment 1～5 preparation with TPV groups
The tensile strength of compound, elongation at break and scratch resistance are superior to comparative example 1 and prepare TPV compositions, are primarily due to contrast
Thermoplastic polyester elastomer is not added with example 1, composition polarity is weak, with ABS poor compatibilities, cause which with ABS poor adhesions；
2) scratch resistant performance of TPV compositions prepared by embodiment 1～5 is superior to the TPV compositions of the preparation of comparative example 2,
Damage resistant agent EVA and Na-E/MAA is added in being primarily due to embodiment 1～5, can significantly improve the scratch-resistant of TPV material
Wound property, and EVA and Na-E/MAA in comparative example 2, is not added with, the scratch resistance of gained TPV compositions is poor；
3) tensile strength of TPV compositions prepared by embodiment 1～5, elongation at break and tearing strength are superior to contrast
TPV compositions prepared by example 3, with the addition of compatilizer EPDM-g-MAH and POE-g-MAH in being primarily due to embodiment 1～5, and
Bulking agent is not added with comparative example 3；
4) in embodiment 1～4, the content of TPV is different, but the stretching of TPV composition of the change of TPV contents to obtaining
The impact of intensity and elongation at break is not obvious；
5) in embodiment 1～5, EVA is different with the content of Na-E/MAA, even if the two content is relatively low, the TPV combinations for obtaining
The scratch resistance of thing can still reach dL value≤0.5 after 10min, and still maintain the higher adhesion strength with ABS resin, power
Learn performance unaffected, excellent combination property.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention not by above-described embodiment
Limit, other any Spirit Essences without departing from the present invention and the change, modification, replacement made under principle, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of and secondary Overmolded surface damage resistant TPV compositions of ABS substrate, it is characterised in that：Which is by following quality
The raw material composition of percentage composition：
TPV：31～63%；
Polyester-type thermoplastic elastomer：25～40%；
Compatilizer：5～8%；
Ethylene-vinyl acetate copolymer：2～6%；
Ethylene-propylene acids ionomer：5～15%.
2. the according to claim 1 and secondary Overmolded surface damage resistant TPV compositions of ABS substrate, its feature exist
In：Described TPV is EPT rubber dynamic vulcanization TPV.
3. the according to claim 2 and secondary Overmolded surface damage resistant TPV compositions of ABS substrate, its feature exist
In：The shore hardness of described EPT rubber dynamic vulcanization TPV is 35A～75A.
4. the according to claim 1 and secondary Overmolded surface damage resistant TPV compositions of ABS substrate, its feature exist
In：Described polyester elastomer is TPUE, at least one in thermoplastic polyester elastomer.
5. the according to claim 1 and secondary Overmolded surface damage resistant TPV compositions of ABS substrate, its feature exist
In：Described compatilizer is cyclic acid anhydride type compatilizer.
6. the according to claim 5 and secondary Overmolded surface damage resistant TPV compositions of ABS substrate, its feature exist
In：Described cyclic acid anhydride type compatilizer is at least one in EPDM-g-MAH, POE-g-MAH.
7. the according to claim 1 and secondary Overmolded surface damage resistant TPV compositions of ABS substrate, its feature exist
In：Weight/mass percentage composition >=28% of vinyl acetate in described ethylene-vinyl acetate copolymer.
8. the according to claim 1 and secondary Overmolded surface damage resistant TPV compositions of ABS substrate, its feature exist
In：Sodium salt, the zinc of ethylene-acrylic acid copolymer of the described ethylene-propylene acids ionomer for ethylene-acrylic acid copolymer
At least one in salt, the sodium salt of ethylene-methacrylic acid copolymer, the zinc salt of ethylene-methacrylic acid copolymer.
9. secondary with ABS substrate Overmolded surface damage resistant TPV compositions in claim 1～8 described in any one
Preparation method, it is characterised in that：Comprise the following steps：
1）By polyester-type thermoplastic elastomer in 60～80 DEG C of dryings 4～8 hours；
2）By polyester-type thermoplastic elastomer, TPV, compatilizer, ethylene-vinyl acetate copolymer and ethylene-propylene acids from poly-
Thing is mixed in proportion, then is placed in parallel equidirectional two-screw extruder, melting extrusion, granulation, obtains secondary with ABS substrate
Overmolded surface damage resistant TPV compositions.
10. preparation method according to claim 9, it is characterised in that：The screw slenderness ratio of described double screw extruder
L/D is（40～52）：1, screw speed is 200～280rpm, and extrusion temperature is 80～220 DEG C.
Priority Applications (1)
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| CN106939100A (en) * | 2017-04-20 | 2017-07-11 | 贵州省材料产业技术研究院 | A kind of fire-retardant TPV composites of dynamic vulcanization and preparation method thereof |
| CN112480589A (en) * | 2020-12-09 | 2021-03-12 | 上海锦湖日丽塑料有限公司 | Soft-touch HIPS composition and preparation method thereof |
| CN114410017A (en) * | 2021-12-31 | 2022-04-29 | 广东太力科技集团股份有限公司 | TPV material and preparation method and application thereof |
| CN114410017B (en) * | 2021-12-31 | 2024-04-26 | 广东太力科技集团股份有限公司 | TPV material and preparation method and application thereof |
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