CN109762258A - A kind of high scratch-proof polypropylene material and preparation method thereof - Google Patents
A kind of high scratch-proof polypropylene material and preparation method thereof Download PDFInfo
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- CN109762258A CN109762258A CN201811544191.2A CN201811544191A CN109762258A CN 109762258 A CN109762258 A CN 109762258A CN 201811544191 A CN201811544191 A CN 201811544191A CN 109762258 A CN109762258 A CN 109762258A
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Abstract
The present invention relates to technical field of macromolecules, more particularly to a kind of high scratch-proof polypropylene material and preparation method thereof, it prepares raw material and is made of polypropylene, toughener, surface scratch improver, inorganic fill and other auxiliary agents, described prepare melts in investment double screw extruder after raw material is sufficiently mixed, it squeezed out, be granulated, high scratch-proof polypropylene material is made.Surface scratch improver one end vinyl group of the invention efficiently mutually melts with PP matrix, and the tetrafluoroethene of the other end is repelled by polypropylene matrix to material surface, and the structure of thin film is formed, and plays a kind of self-lubricating effect, destruction of the hard object to surface can be effectively reduced, the scratch resistance performance of material is increased；It invention can be widely used in automotive interior/exterior material, meet automobile interior decoration to the requirements at the higher level of scratch resistance.
Description
Technical field
The present invention relates to technical field of macromolecules, and in particular to a kind of high scratch-proof polypropylene material and preparation method thereof.
Background technique
With the rapid development of auto industry and the increasingly raising of automobile consumption demand, the requirement to automotive material is also more next
Higher, especially plastics used in automotive upholstery account for 50% or more of vehicle amount of plastic, have higher want to plastics performance
It asks.
PP (polypropylene) material is plastics commonly used by automotive upholstery, since the scratch resistant performance of PP material is poor, and
The products such as instrument desk, column, the door-plate of automobile are in the region easily scratched again, and the modified PP material of damage resistant is always to study
There are clear standard in emphasis, major mainstream automotive main engine plants to PP material in terms of scuffing.
Currently, main engine plants are scratch resistant to surface to require higher and higher, L value (L value generation after not only scraping to the cross of material
The shade of table article surface) variation clearly require, to the G value of the glossiness after damage resistant, (G value represents product table
The glossiness in face) variation also clearly require；Method for improving PP material damage resistant in the prior art, it is mainly logical
Addition silicone, slipping agent etc. are crossed, the lubricity of material surface is improved, to achieve the purpose that damage resistant；But silicone and smooth
Agent belongs to small molecule class, can be precipitated to surface after moulding, cause lineae ablicantes and speck, influence product overall effect.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of high scratch-proof polypropylene material and its systems
Preparation Method.
For this purpose, the invention adopts the following technical scheme:
A kind of high scratch-proof polypropylene material, is made of the raw material of following parts by weight:
Further, the polypropylene is the copolymer polypropylene of melt index 10-100g/10min.
Further, the surface scratch improver is ETFE master batch, and the ETFE master batch is by ETFE resin and to be total to
What poly- PP was obtained after double screw extruder is granulated, the mass percent that the copolymerization PP accounts for ETFE master batch is 50%.
Further, the toughener is ethylene-butylene polymer, ethylene-octene copolymer, ethylene-propylene polymer
One of or two or more mixtures.
Further, the inorganic filler is one or both of talcum powder or calcium carbonate mixture, and inorganic is filled out
The powder mesh number for filling object is 5000 mesh.
A kind of preparation method of above-mentioned high scratch-proof polypropylene material, includes the following steps:
(1) raw material is weighed in parts by weight, and polypropylene, toughener, surface scratch improver are added in mixing machine, in
It is mixed 3-15 minutes under 800-1500r/min, other auxiliary agents is then added, 3-15 points are continuesd to mix under 800-1500r/min
Clock；
(2) well-mixed material in step (1) is added twin-screw extrude into melting, in the side spout of extruder
Inorganic filler is added, under nitrogen protection melting mixing, is squeezed out finally by double screw extruder, granulating and forming, height is made
Scratch-proof polypropylene material.
Further, the double screw extruder is set there are two place is vacuumized, one of them place of vacuumizing is set to conveying
Expect between the end of section and the starting end of melt zone, another place of vacuumizing is set to metering section.
Further, the screw slenderness ratio of the double screw extruder is 40-50:1, and double screw extruder includes eight temperature
Area is controlled, and the temperature of each temperature controlled region is 210-260 DEG C, screw speed 200-500r/min.
Beneficial effects of the present invention are as follows:
1, the present invention introduces surface scratch improver in PP matrix, i.e. ETFE (ethylene-tetrafluoroethylene copolymer), this
The ethylene block of kind copolymer can be efficiently compatible in PP matrix, and tetrafluoroethene block is then repelled by PP matrix, to make
PP matrix surface uniformly adheres to one layer of tetrafluoroethene layer；And tetrafluoroethene can play the role of self-lubricating in frosting, from
And improve the scratch-resistant Flaw characterization of material；The ethylene block in ethylene-tetrafluoroethylene copolymer is played in PP matrix with compatible simultaneously
The effect of anchoring, this tetrafluoroethene block is attached to surface is not easily to fall off, to generate long-acting mar-proof characteristic.
2, high scratch-proof polypropylene material of the invention is manufactured by twin-screw extrusion machine one-step method, and finished product can directly pass through
Injection molding is not necessarily to later period spray treatment, substantially increases production efficiency.
Specific embodiment
To be best understood from the present invention, below with reference to specific embodiment, the present invention is further described.
The copolymerization for the high flowing that selected polypropylene is melt index 10-100g/10min in following embodiment is poly-
Propylene；
Surface scratch improver is ETFE (ethylene-tetrafluoroethylene copolymer) master batch, and the ETFE master batch is by ETFE
What resin and copolymerization PP were obtained after double screw extruder is granulated, the mass percent that ETFE resin accounts for ETFE master batch is 50%.
The ethylene-octene block copolymer that toughener uses DOW Chemical to produce.
The superfine talcum powder that inorganic filler is produced using Fa Ji company.
Other selection of auxiliary antioxidant and light stabilizer；Such as it is of the invention prepare added in component scratch resistance liniment, resist it is quiet
Other function additives such as electric agent, colorant make composite material that there are individual features to also belong to protection scope of the present invention.
Embodiment 1
A kind of high scratch-proof polypropylene material, is made of the raw material of following parts by weight:
The preparation method of above-mentioned high scratch-proof polypropylene material the following steps are included:
(1) raw material is weighed in parts by weight, and polypropylene, toughener, surface scratch improver are added in mixing machine, in
It is mixed 15 minutes under 800r/min, other auxiliary agents is then added, continuesd to mix under 800r/min 15 minutes；
(2) well-mixed material in step (1) is added twin-screw extrude into melting, in the side spout of extruder
Inorganic filler is added, under nitrogen protection melting mixing, is squeezed out finally by double screw extruder, granulating and forming, height is made
Scratch-proof polypropylene material.
The double screw extruder is set there are two place is vacuumized, one of them place of vacuumizing is set to the end of material conveying section
Between end and the starting end of melt zone, another place of vacuumizing is set to metering section；The screw slenderness ratio of double screw extruder is
40:1, double screw extruder includes eight temperature controlled regions, and the temperature of each temperature controlled region is 210 DEG C, screw speed 500r/min.
Embodiment 2
A kind of high scratch-proof polypropylene material, is made of the raw material of following parts by weight:
The preparation method of above-mentioned high scratch-proof polypropylene material the following steps are included:
(1) raw material is weighed in parts by weight, and polypropylene, toughener, surface scratch improver are added in mixing machine, in
It is mixed 3 minutes under 1500r/min, other auxiliary agents is then added, continuesd to mix under 1500r/min 3 minutes；
(2) well-mixed material in step (1) is added twin-screw extrude into melting, in the side spout of extruder
Inorganic filler is added, under nitrogen protection melting mixing, is squeezed out finally by double screw extruder, granulating and forming, height is made
Scratch-proof polypropylene material.
The double screw extruder is set there are two place is vacuumized, one of them place of vacuumizing is set to the end of material conveying section
Between end and the starting end of melt zone, another place of vacuumizing is set to metering section；The screw slenderness ratio of double screw extruder is
50:1, double screw extruder includes eight temperature controlled regions, and the temperature of each temperature controlled region is 260 DEG C, screw speed 200r/min.
Embodiment 3
A kind of high scratch-proof polypropylene material, is made of the raw material of following parts by weight:
The preparation method of above-mentioned high scratch-proof polypropylene material the following steps are included:
(1) raw material is weighed in parts by weight, and polypropylene, toughener, surface scratch improver are added in mixing machine, in
It is mixed 9 minutes under 1200r/min, other auxiliary agents is then added, continuesd to mix under 1200r/min 9 minutes；
(2) well-mixed material in step (1) is added twin-screw extrude into melting, in the side spout of extruder
Inorganic filler is added, under nitrogen protection melting mixing, is squeezed out finally by double screw extruder, granulating and forming, height is made
Scratch-proof polypropylene material.
The double screw extruder is set there are two place is vacuumized, one of them place of vacuumizing is set to the end of material conveying section
Between end and the starting end of melt zone, another place of vacuumizing is set to metering section；The screw slenderness ratio of double screw extruder is
45:1, double screw extruder includes eight temperature controlled regions, and the temperature of each temperature controlled region is 230 DEG C, screw speed 250r/min.
Embodiment 4
A kind of high scratch-proof polypropylene material, is made of the raw material of following parts by weight:
The preparation method of above-mentioned high scratch-proof polypropylene material the following steps are included:
(1) raw material is weighed in parts by weight, and polypropylene, toughener, surface scratch improver are added in mixing machine, in
It is mixed 8 minutes under 1000r/min, other auxiliary agents is then added, continuesd to mix under 1000r/min 8 minutes；
(2) well-mixed material in step (1) is added twin-screw extrude into melting, in the side spout of extruder
Inorganic filler is added, under nitrogen protection melting mixing, is squeezed out finally by double screw extruder, granulating and forming, height is made
Scratch-proof polypropylene material.
The double screw extruder is set there are two place is vacuumized, one of them place of vacuumizing is set to the end of material conveying section
Between end and the starting end of melt zone, another place of vacuumizing is set to metering section；The screw slenderness ratio of double screw extruder is
50:1, double screw extruder includes eight temperature controlled regions, and the temperature of each temperature controlled region is 230 DEG C, screw speed 300r/min.
Embodiment 5
A kind of high scratch-proof polypropylene material, is made of the raw material of following parts by weight:
The preparation method of above-mentioned high scratch-proof polypropylene material the following steps are included:
(1) raw material is weighed in parts by weight, and polypropylene, toughener, surface scratch improver are added in mixing machine, in
It is mixed 5 minutes under 900r/min, other auxiliary agents is then added, continuesd to mix under 900r/min 5 minutes；
(2) well-mixed material in step (1) is added twin-screw extrude into melting, in the side spout of extruder
Inorganic filler is added, under nitrogen protection melting mixing, is squeezed out finally by double screw extruder, granulating and forming, height is made
Scratch-proof polypropylene material.
The double screw extruder is set there are two place is vacuumized, one of them place of vacuumizing is set to the end of material conveying section
Between end and the starting end of melt zone, another place of vacuumizing is set to metering section；The screw slenderness ratio of double screw extruder is
43:1, double screw extruder includes eight temperature controlled regions, and the temperature of each temperature controlled region is 240 DEG C, screw speed 400r/min.
Comparative example 1
A kind of high scratch-proof polypropylene material, is made of the raw material of following parts by weight:
The preparation method is the same as that of Example 1 for above-mentioned high scratch-proof polypropylene material.
Comparative example 2
A kind of high scratch-proof polypropylene material, is made of the raw material of following parts by weight:
The preparation method is the same as that of Example 1 for above-mentioned high scratch-proof polypropylene material.
Polypropylene material made from specific embodiment 1-5 and comparative example 1-2 is tested, it is main to test physical index such as
Under: damage resistant test is carried out according to PV-3952 (10N), PV-3974 (3N) standard, record detection scrapes front and back article surface
Shade changes (Δ L value) and the glossiness of article surface changes (Δ G value), shown in specific tables of data 1:
1 embodiment 1-5 of table and comparative example 1-2 test data
The present invention in PP matrix due to introducing surface scratch improver, prepared polypropylene as can be seen from Table 2
Material, before and after damage resistant test, shade and the glossiness variation of article surface are much less than the system of comparative example
Part, scratch resistance are brilliant.
The embodiment described is not limited only to protection scope of the present invention, all to be carried out based on basic thought of the invention
It modifies or what is changed belongs to protection scope of the present invention.
Claims (8)
1. a kind of high scratch-proof polypropylene material, it is characterised in that: be made of the raw material of following parts by weight:
2. a kind of high scratch-proof polypropylene material according to claim 1, it is characterised in that: the polypropylene is melting
The copolymer polypropylene of index 10-100g/10min.
3. a kind of high scratch-proof polypropylene material according to claim 1, it is characterised in that: the surface scratch improves
Agent is ETFE master batch, and the ETFE master batch is obtained after double screw extruder is granulated by ETFE resin and copolymerization PP, institute
Stating copolymerization PP and accounting for the mass percent of ETFE master batch is 50%.
4. a kind of high scratch-proof polypropylene material according to claim 1, it is characterised in that: the toughener is second
One of alkene-butene polymers, ethylene-octene copolymer, ethylene-propylene polymer or two or more mixtures.
5. a kind of high scratch-proof polypropylene material according to claim 1, it is characterised in that: the inorganic filler is
One or both of talcum powder or calcium carbonate mixture, and the powder mesh number of inorganic filler is 5000 mesh.
6. a kind of preparation method of high scratch-proof polypropylene material described in -5 any one according to claim 1, feature exist
In including the following steps:
(1) raw material is weighed in parts by weight, polypropylene, toughener, surface scratch improver is added in mixing machine, in 800-
It is mixed 3-15 minutes under 1500r/min, other auxiliary agents is then added, continuesd to mix under 800-1500r/min 3-15 minutes；
(2) well-mixed material in step (1) is added twin-screw extrude into melting, is added in the side spout of extruder
Inorganic filler, melting mixing, squeezes out, granulating and forming finally by double screw extruder under nitrogen protection, is made high scratch-resistant
Trace polypropylene material.
7. the preparation method of high scratch-proof polypropylene material according to claim 6, it is characterised in that: the twin-screw
Extruder is set there are two vacuumizing place, one of them place of vacuumizing be set to material conveying section end and melt zone starting end it
Between, another place of vacuumizing is set to metering section.
8. the preparation method of high scratch-proof polypropylene material according to claim 6, it is characterised in that: the twin-screw
The screw slenderness ratio of extruder is 40-50:1, and double screw extruder includes eight temperature controlled regions, and the temperature of each temperature controlled region is
210-260 DEG C, screw speed 200-500r/min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811544191.2A CN109762258A (en) | 2018-12-17 | 2018-12-17 | A kind of high scratch-proof polypropylene material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811544191.2A CN109762258A (en) | 2018-12-17 | 2018-12-17 | A kind of high scratch-proof polypropylene material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111718539A (en) * | 2020-05-26 | 2020-09-29 | 江苏金发科技新材料有限公司 | Self-repairing polypropylene material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759913A (en) * | 2008-11-21 | 2010-06-30 | 上海普利特复合材料股份有限公司 | Novel scratch-proof polypropylene material and preparation method thereof |
| CN104086968A (en) * | 2014-07-03 | 2014-10-08 | 合肥杰事杰新材料股份有限公司 | Scratch-resistant polycarbonate/polylactic acid alloy material and preparation method thereof |
-
2018
- 2018-12-17 CN CN201811544191.2A patent/CN109762258A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759913A (en) * | 2008-11-21 | 2010-06-30 | 上海普利特复合材料股份有限公司 | Novel scratch-proof polypropylene material and preparation method thereof |
| CN104086968A (en) * | 2014-07-03 | 2014-10-08 | 合肥杰事杰新材料股份有限公司 | Scratch-resistant polycarbonate/polylactic acid alloy material and preparation method thereof |
Non-Patent Citations (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111718539A (en) * | 2020-05-26 | 2020-09-29 | 江苏金发科技新材料有限公司 | Self-repairing polypropylene material and preparation method thereof |
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