CN109776982A - A kind of modified polymer material and preparation method thereof - Google Patents
A kind of modified polymer material and preparation method thereof Download PDFInfo
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- CN109776982A CN109776982A CN201811641680.XA CN201811641680A CN109776982A CN 109776982 A CN109776982 A CN 109776982A CN 201811641680 A CN201811641680 A CN 201811641680A CN 109776982 A CN109776982 A CN 109776982A
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Abstract
The invention discloses a kind of preparation methods of modified polymer material, it is characterised in that it includes following step: 1) temperature for weighing porous ultra-high molecular weight polyethylene superfine powder and test melt index is proportionally uniformly mixed lower than the macromolecule material powder to be modified of porous ultra-high molecular weight polyethylene superfine powder decomposition temperature；2) mixed-powder is put into mold, strikes off, is placed on press and is compacted；3) it by mould pressurizing, heats and keeps the temperature a period of time, so that two kinds of materials are plasticized completely；4) mould pressurizing cooling is obtained into modified blended compound material.Beneficial effects of the present invention: preparation process is simple, improves the performance of high molecular material, improves the shock resistance and wear-resisting property of material.
Description
Technical field
The present invention relates to material blending and modifying fields, it particularly relates to a kind of modified polymer material and its preparation side
Method.
Background technique
Ultra-high molecular weight polyethylene is the linear polyethylene that average molecular weight is greater than 3,000,000 (ISO 1628-3), due to flat
Average molecular weight is big, assigns ultra-high molecular weight polyethylene special some performances, such as high impact, wear-resisting, low-friction coefficient,
Self-lubrication, low water absorbable and chemically-resistant solvent.And some high molecular materials such as PS, PMMA, PA(low temperature impact are poor), PP
(low temperature impact is poor), PBT(is to notch sensitive), SAN, POM(is to notch sensitive) shock resistance it is poor, some high molecular materials
Such as: the wear-resisting property of PMMA, PP, POM, PS are poor, if by ultra-high molecular weight polyethylene and these above-mentioned high molecular materials into
Row blending and modifying will improve the performance deficiency of above-mentioned high molecular material, so that above-mentioned high molecular material obtains new capability.
Traditional ultra-high molecular weight polyethylene and other high molecular material blending and modifyings is by the super of certain average molecular weight
High molecular weight polyethylene powder is mixed with high molecular material according to a certain percentage, adds the surface for improving two kinds of high molecular materials
The auxiliary agent of bond properties, or ultra-high molecular weight polyethylene powder surface is subjected to certain such as graft modifications, by these ingredients
It is uniformly mixed, blending and modifying granulation is then carried out by double screw extruder or single screw extrusion machine, obtain super high molecular weight
Particle is added in injection molding machine and infuses if it is desired to producing these composite products by PE modified polymer composite
It is moulded into type, either directly these mixtures pass through twin-screw or single screw extrusion machine extrusion molding.This traditional macromolecule
Material blending and modifying and moulding process, state of the ultra-high molecular weight polyethylene powder as modifying agent in main body high molecular material
It is powder filler, ultra-high molecular weight polyethylene powder is not plasticized sufficiently.Ultra-high molecular weight polyethylene due to average molecular weight very
Greatly, abundant plasticizing forming is needed to heat at the same time and be carried out under certain pressure, it is desirable to obtain the supra polymer haveing excellent performance
Weight polyethylene product, two kinds of conditions are indispensable, and traditional high molecular material is blended and moulding process, cannot to be dispersed in change
Property high molecular material main body in ultra-high molecular weight polyethylene powder be sufficiently plasticized, obtain and simultaneously heating and certain pressure pressurization
The same performance of ultra-high molecular weight polyethylene under technique, therefore the modifying function of ultra-high molecular weight polyethylene is not given full play to yet.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Summary of the invention
For above-mentioned technical problem in the related technology, the present invention proposes a kind of modified polymer material and its preparation side
Method improves mechanical properties of polymer materials.
To realize the above-mentioned technical purpose, the technical scheme of the present invention is realized as follows:
A kind of preparation method of modified polymer material, includes the following steps:
1) temperature for weighing porous ultra-high molecular weight polyethylene superfine powder and test melt index is poly- lower than porous super high molecular weight
The macromolecule material powder to be modified of tetrafluoroethylene micropowder decomposition temperature is proportionally uniformly mixed；
2) mixed-powder is put into mold, strikes off, is placed on press and is compacted；
3) it by mould pressurizing, heats and keeps the temperature a period of time, so that two kinds of materials are plasticized completely；
4) mould pressurizing is cooled to room temperature and obtains modified blended compound material.
High molecular material to be modified such as PS, PMMA, PA, PP, PBT, SAN, POM.
Further, in step 1), the porous ultra-high molecular weight polyethylene superfine powder and the macromolecule material to be modified
The mass ratio of material is 0.01:1-1:1.
Further, in step 1), the temperature of the test melt index of the high molecular material to be modified is no more than 260
DEG C, the mesh number of the high molecular material to be modified is 10-400 mesh.
Further, in step 1), the porous ultra-high molecular weight polyethylene superfine powder average molecular weight is 300-1200
Ten thousand, testing standard is ISO 1628-3.
Further, in step 2, mix powder is is compacted by the compacting in three times, pressure 0.1-10MPa.
Further, in step 3), the mold that is pressurised into is placed on hot pressing press, pressure 5-10MPa.
Further, in step 3), the heating is simultaneously kept the temperature to be heated to high molecular material to be modified and testing melt index
Temperature, and keep the temperature a period of time, so that two kinds of materials are plasticized completely, effect meeting of the high molecular material melt to be modified in pressure
Into in the hole of porous ultra-high molecular weight polyethylene powder, two phase material interface cohesion is secured after cooling.
Further, in step 4), the pressurization is cooled to be placed in mold on cold pressing press, pressure 5-10MPa, mould
Tool is cooled to room temperature.
The present invention also provides modified polymer materials prepared by the above method.
Beneficial effects of the present invention: preparation process is simple, improves the performance of high molecular material, improves the anti-impact of material
Hit performance and wear-resisting property.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment 1
Raw material: the PS of South Korea's brocade lake petrochemistry, the trade mark: GP125, porous ultra-high molecular weight polyethylene superfine powder (Celanese
The GUR2126 of company, 30 microns of average grain diameter, average molecular weight 5,000,000 (ISO 1628-3)).
1,4kg GP125 powder and the porous ultra-high molecular weight polyethylene GUR2126 powder of 1kg are mixed in batch mixer
It is even；
2, mixture of powders is placed in board mould, is struck off；
3, mold is placed on hot pressing press, mix powder is cold-pressed according to pressure 3MPa, 6MPa and 10MPa points of three steps and is pressed
It is real；
4, pressure is maintained at 5MPa, heating mould, so that mold temperature reaches 200 DEG C and keeps the temperature a period of time, so that two kinds
Material is plasticized completely；
5, mold is placed on cold pressing press, pressure keeps 10MPa, and mold is cooled to room temperature；
6, it demoulds；
7, it tests.
Obtained composite material test result is as follows table
Embodiment 2
Raw material: the SAN of South Korea's brocade lake petrochemistry, the trade mark: SAN320, porous ultra-high molecular weight polyethylene superfine powder (Sai Lani
The GUR2126 of this company, 30 microns of average grain diameter, average molecular weight 5,000,000 (ISO 1628-3)).
1,4kg SAN320 powder and the porous ultra-high molecular weight polyethylene GUR2126 powder of 1kg are mixed in batch mixer
Uniformly；
2, mixture of powders is placed in board mould, is struck off；
3, mold is placed on hot pressing press, mix powder is cold-pressed according to pressure 3MPa, 6MPa and 10MPa points of three steps and is pressed
It is real；
4, pressure is maintained at 5MPa, heating mould, so that mold temperature reaches 200 DEG C and keeps the temperature a period of time, so that two kinds
Material is plasticized completely；
5, mold is placed on cold pressing press, pressure keeps 10MPa, and mold is cooled to room temperature；
6, it demoulds；
7, it tests.
Obtained composite material test result is as follows table
Embodiment 3
Raw material: the PBT of Celanese Corp., the trade mark: CELANEX2008, porous ultra-high molecular weight polyethylene superfine powder (Sai Lani
The GUR2126 of this company, 30 microns of average grain diameter, average molecular weight 5,000,000 (ISO 1628-3)).
1, by 4kg CELANEX2008 powder and the porous ultra-high molecular weight polyethylene GUR2126 powder of 1kg in batch mixer
It is uniformly mixed；
2, mixture of powders is placed in board mould, is struck off；
3, mold is placed on hot pressing press, mix powder is cold-pressed according to pressure 3MPa, 6MPa and 10MPa points of three steps and is pressed
It is real；
4, pressure is maintained at 5MPa, heating mould, so that mold temperature reaches 250 DEG C and keeps the temperature a period of time, so that two kinds
Material is plasticized completely；
5, mold is placed on cold pressing press, pressure keeps 10MPa, and mold is cooled to room temperature；
6, it demoulds；
7, it tests.
Obtained composite material test result is as follows table
Embodiment 4
Raw material: the POM of Shanghai blue star, the trade mark: BS270 booster stage acetal plastic, porous ultra-high molecular weight polyethylene superfine powder
(GUR2126 of Celanese Corp., 30 microns of average grain diameter, average molecular weight 5,000,000 (ISO 1628-3)).
1,4kg BS270 powder and the porous ultra-high molecular weight polyethylene powder GUR2126 of 1kg are mixed in batch mixer
Uniformly；
2, mixture of powders is placed in board mould, is struck off；
3, mold is placed on hot pressing press, mix powder is cold-pressed according to pressure 3MPa, 6MPa and 10MPa points of three steps and is pressed
It is real；
4, pressure is maintained at 5MPa, heating mould, so that mold temperature reaches 190 DEG C and keeps the temperature a period of time, so that two kinds
Material is plasticized completely；
5, mold is placed on cold pressing press, pressure keeps 10MPa, and mold is cooled to room temperature；
6, it demoulds；
7, it tests.
Obtained composite material test result is as follows table
Embodiment 5
Raw material: the PP of Shanghai match section, the trade mark: K4912, porous ultra-high molecular weight polyethylene superfine powder be (Celanese Corp.
GUR2126,30 microns of average grain diameter, average molecular weight 5,000,000 (ISO 1628-3)).
1,4kg K4912 powder and the porous ultra-high molecular weight polyethylene GUR2126 powder of 1kg are mixed in batch mixer
It is even；
2, mixture of powders is placed in board mould, is struck off；
3, mold is placed on hot pressing press, mix powder is cold-pressed according to pressure 3MPa, 6MPa and 10MPa points of three steps and is pressed
It is real；
4, pressure is maintained at 5MPa, heating mould, so that mold temperature reaches 230 DEG C and keeps the temperature a period of time, so that two kinds
Material is plasticized completely；
5, mold is placed on cold pressing press, pressure keeps 10MPa, and mold is cooled to room temperature；
6, it demoulds；
7, it tests.
Obtained composite material test result is as follows table
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of preparation method of modified polymer material, which is characterized in that include the following steps:
1) temperature for weighing porous ultra-high molecular weight polyethylene superfine powder and test melt index is poly- lower than porous super high molecular weight
The macromolecule material powder to be modified of tetrafluoroethylene micropowder decomposition temperature is proportionally uniformly mixed；
2) mixed-powder is put into mold, strikes off, is placed on press and is compacted；
3) it by mould pressurizing, heats and keeps the temperature a period of time, so that two kinds of materials are plasticized completely；
4) mould pressurizing is cooled to room temperature and obtains modified blended compound material.
2. preparation method according to claim 1, which is characterized in that porous ultra-high molecular weight polyethylene described in step 1)
The mass ratio of superfine powder and the high molecular material to be modified is 0.01:1-1:1.
3. preparation method according to claim 1, which is characterized in that in step 1), the high molecular material to be modified
It tests melt index temperature and is no more than 260 DEG C.
4. preparation method according to claim 1, in step 1), the porous ultra-high molecular weight polyethylene superfine powder is average
Molecular weight is 300-1200 ten thousand.
5. preparation method according to claim 1, which is characterized in that in step 2, the compacting is in three times by mixing
The compacting of object powder, pressure 0.1-10MPa.
6. preparation method according to claim 1, which is characterized in that in step 3), the mold that is pressurised into is placed in hot pressing
On press, pressure 5-10MPa.
7. preparation method according to claim 1, which is characterized in that in step 3), the heating is simultaneously kept the temperature to be heated to
The temperature of high molecular material test melt index to be modified, and a period of time is kept the temperature, so that two kinds of materials are plasticized completely.
8. preparation method according to claim 1, which is characterized in that in step 4), the pressurization is cooled to set on mold
In on cold pressing press, pressure 5-10MPa, mold is cooled to room temperature.
9. a kind of modified polymer material, which is characterized in that be made by preparation method according to any one of claims 1 to 8.
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| CN201811641680.XA CN109776982A (en) | 2018-12-29 | 2018-12-29 | A kind of modified polymer material and preparation method thereof |
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| CN201811641680.XA CN109776982A (en) | 2018-12-29 | 2018-12-29 | A kind of modified polymer material and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6371330A (en) * | 1986-09-12 | 1988-03-31 | Mitsuboshi Belting Ltd | Manufacture of super high-molecular weight polyethylene pipe |
| CN101240092A (en) * | 2008-03-14 | 2008-08-13 | 株洲时代新材料科技股份有限公司 | Super-high molecular weight polyethylene low frictional coefficient wearable composite material and its preparation and use |
| CN102796300A (en) * | 2011-05-24 | 2012-11-28 | 上海上丰集团有限公司 | Ultra-high molecular weight polyethylene composite pipe, and raw materials and preparation method thereof |
| CN104086848A (en) * | 2014-07-03 | 2014-10-08 | 合肥杰事杰新材料股份有限公司 | High-pressure molded UHMWPE/PA6 (ultrahigh molecular weight polyethylene/polyamide 6) alloy and preparation method thereof |
-
2018
- 2018-12-29 CN CN201811641680.XA patent/CN109776982A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6371330A (en) * | 1986-09-12 | 1988-03-31 | Mitsuboshi Belting Ltd | Manufacture of super high-molecular weight polyethylene pipe |
| CN101240092A (en) * | 2008-03-14 | 2008-08-13 | 株洲时代新材料科技股份有限公司 | Super-high molecular weight polyethylene low frictional coefficient wearable composite material and its preparation and use |
| CN102796300A (en) * | 2011-05-24 | 2012-11-28 | 上海上丰集团有限公司 | Ultra-high molecular weight polyethylene composite pipe, and raw materials and preparation method thereof |
| CN104086848A (en) * | 2014-07-03 | 2014-10-08 | 合肥杰事杰新材料股份有限公司 | High-pressure molded UHMWPE/PA6 (ultrahigh molecular weight polyethylene/polyamide 6) alloy and preparation method thereof |
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Effective date of registration: 20220921 Address after: 101300 101, building 13, yard 12, Juyuan Middle Road, Mapo Town, Shunyi District, Beijing Applicant after: Beijing Antong Yitai Medical Technology Co.,Ltd. Address before: 101107 Block D, No. 7 Wuxing Road, Gantang Industrial Zone, Lucheng Town, Tongzhou District, Beijing Applicant before: BEIJING ANTONG PLASTIC PRODUCTS CO.,LTD. |
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Application publication date: 20190521 |