CN109467790A - A kind of ultra-high molecular weight polyethylene product - Google Patents
A kind of ultra-high molecular weight polyethylene product Download PDFInfo
- Publication number
- CN109467790A CN109467790A CN201811612323.0A CN201811612323A CN109467790A CN 109467790 A CN109467790 A CN 109467790A CN 201811612323 A CN201811612323 A CN 201811612323A CN 109467790 A CN109467790 A CN 109467790A
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- graphite
- molecular weight
- ultra
- high molecular
- weight polyethylene
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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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- 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
- C08L2207/06—Properties of polyethylene
- C08L2207/068—Ultra high molecular weight polyethylene
Abstract
The invention discloses a kind of ultra-high molecular weight polyethylene products, by weight, are made of the following components: molecular weight is 100 parts of ultra-high molecular weight polyethylene of 800-1000 ten thousand；2.5-4 parts of glass fibre；2-3 parts of expanded graphite；0.3-0.5 parts of solid paraffin；The expanded graphite is prepared as follows: 1) natural flake graphite being taken to be ground to the graphite composite powder that granularity is 50-100 mesh；2) the made graphite composite powder of step 1) under constant stirring, is added into intercalant solution, is warming up to 60-80 DEG C, continues to stir 30-60min；Gained mixed reactant is successively filtered, is rinsed, is dried, and expansible graphite is obtained；3) by the resulting expansible graphite of step 2), being placed in power is that 3-5min is heated in 800-1000W micro-wave oven to get expanded graphite, ultra-high molecular weight polyethylene product of the present invention, with lower coefficient of friction and while surface resistivity, excellent in mechanical performance.
Description
Technical field
The present invention relates to a kind of ultra-high molecular weight polyethylene products.
Background technique
Ultra-high molecular weight polyethylene is a kind of novel thermoplastic materials engineering plastics, has both combined the superiority of all plastic products
Can, and therefore impact resistance, wear-resistant, self-lubricating, resistant to chemical etching, absorption this five kinds of characteristics of impact property are commonly referred to as " enabling
The surprised plastics of people " have more excellent properties, use temperature range is wide, there is excellent chemistry compared with other plastics
Stability can be widely applied to each neck such as chemical industry, machinery, miner, metallurgy, light textile, medicine, electronics, electric power, building and military project
Domain, while also to its performance, more stringent requirements are proposed.
Summary of the invention
Goal of the invention: the purpose of the present invention is to solve the above the deficiencies in the prior art, provide a kind of super high molecular weight
Polyethylene products, while there is lower coefficient of friction and surface resistivity, excellent in mechanical performance.
Technical solution: a kind of ultra-high molecular weight polyethylene product of the present invention, by weight, by following component group
At:
The expanded graphite is prepared as follows:
1) natural flake graphite is taken to be ground to the graphite composite powder that granularity is 50-100 mesh；
2) the made graphite composite powder of step 1) under constant stirring, is added into intercalant solution, is warming up to 60-80 DEG C,
Continue to stir 30-60min；Gained mixed reactant is successively filtered, is rinsed, is dried, and expansible graphite is obtained；
3) by the resulting expansible graphite of step 2), be placed in power be in 800-1000W micro-wave oven heating 3-5min to get
Expanded graphite.
Preferably, intercalant solution is the mixed of concentrated nitric acid, glacial acetic acid and the potassium permanganate that mass ratio is 30-35:10-15:1
Solution is closed, the quality of intercalant solution and the mass ratio of natural flake graphite are 1:3-5.
Preferably, the length of the glass fibre is 1-5mm.
Preferably, during the expanded graphite, stirring is magnetic agitation in step 2).
Preferably, being rinsed during the expanded graphite, in step 2) to pH is 7.
The utility model has the advantages that present invention adds glass fibre, expanded graphite and solid paraffin, it is verified, reduce coefficient of friction
While with surface resistivity, mechanical property can also increase, such as tensile strength, wear rate and impact strength etc..
Specific embodiment
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the examples below, the embodiment
For explaining only the invention, it is not intended to limit the scope of the present invention..
The preparation of 1 expanded graphite of embodiment, comprising the following steps:
1) natural flake graphite is taken to be ground to the graphite composite powder that granularity is 80 mesh；
2) under continuous magnetic agitation, the made graphite composite powder of step 1) is added into intercalant solution, is warming up to 80 DEG C,
Continue to stir 45min；Gained mixed reactant successively filtered, rinse to pH be 7, drying, obtain expansible graphite；Wherein,
Intercalant solution is the mixed solution of concentrated nitric acid, glacial acetic acid and potassium permanganate that mass ratio is 30:12:1, the matter of intercalant solution
The mass ratio of amount and natural flake graphite is 1:3.
3) by the resulting expansible graphite of step 2), being placed in power is that 5min is heated in 850W micro-wave oven to get expansion stone
Ink.
A kind of ultra-high molecular weight polyethylene product of embodiment 2 is made of the following components by weight:
The preparation method of ultra-high molecular weight polyethylene product described in the present embodiment is to mix the raw material of step aforementioned proportion
It is put into single screw extrusion machine after even, successively by conveying, compacting, heating and extrusion, the material in single screw extrusion machine
Temperature is 185 DEG C, and the revolving speed of screw rod is 450rpm, and ultra-high molecular weight polyethylene product 1# is made.
Embodiment 2
A kind of ultra-high molecular weight polyethylene product is made of the following components by weight:
It is identical as the preparation method of embodiment 1, ultra-high molecular weight polyethylene product 2# is made
Embodiment 3
A kind of ultra-high molecular weight polyethylene product is made of the following components by weight:
It is identical as the preparation method of embodiment 1, ultra-high molecular weight polyethylene product 3# is made.
Embodiment 4
A kind of ultra-high molecular weight polyethylene product is made of the following components by weight:
It is identical as the preparation method of embodiment 1, ultra-high molecular weight polyethylene product 4# is made
Comparative example
By preparation method same as Example 2, the difference is that raw material only includes the superelevation that molecular weight is 800-1000 ten thousand
Ultra-high molecular weight polyethylene product 0# is made in molecular weight polyethylene.
Through measuring, the performance of polytetrafluoroethylene film 1#, 2#, 3# and 4# and 0# are as shown in table 1:
Table 1
From the point of view of ultra-high molecular weight polyethylene product 1-4# and 0# comparison, it can be found that glass fibre, expanded graphite and solid
Body paraffin plays critically important effect to the antistatic property and lubricity that improve polytetrafluoroethylene film, reduce coefficient of friction and
While surface resistivity, tensile strength and impact strength increase, and wear rate reduces.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of ultra-high molecular weight polyethylene product, which is characterized in that by weight, be made of the following components:
The expanded graphite is prepared as follows:
1) natural flake graphite is taken to be ground to the graphite composite powder that granularity is 50-100 mesh；
2) the made graphite composite powder of step 1) under constant stirring, is added into intercalant solution, is warming up to 60-80 DEG C, continues
Stir 30-60min；Gained mixed reactant is successively filtered, is rinsed, is dried, and expansible graphite is obtained；
3) by the resulting expansible graphite of step 2), being placed in power is that 3-5min is heated in 800-1000W micro-wave oven to get expansion
Graphite.
2. a kind of ultra-high molecular weight polyethylene product according to claim 1, which is characterized in that intercalant solution is quality
Than the mixed solution for the concentrated nitric acid of 30-35:10-15:1, glacial acetic acid and potassium permanganate, the quality of intercalant solution and natural squama
The mass ratio of piece graphite is 1:3-5.
3. a kind of ultra-high molecular weight polyethylene product according to claim 1, which is characterized in that the glass fibre
Length is 1-5mm.
4. a kind of ultra-high molecular weight polyethylene product according to claim 1, which is characterized in that the expanded graphite mistake
Cheng Zhong, the middle stirring of step 2) is magnetic agitation.
5. according to a kind of ultra-high molecular weight polyethylene product described in claims requirement 1, which is characterized in that described is swollen
Being rinsed during graphite, in step 2) to pH is 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811612323.0A CN109467790A (en) | 2018-12-27 | 2018-12-27 | A kind of ultra-high molecular weight polyethylene product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811612323.0A CN109467790A (en) | 2018-12-27 | 2018-12-27 | A kind of ultra-high molecular weight polyethylene product |
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| Publication Number | Publication Date |
|---|---|
| CN109467790A true CN109467790A (en) | 2019-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811612323.0A Pending CN109467790A (en) | 2018-12-27 | 2018-12-27 | A kind of ultra-high molecular weight polyethylene product |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635908A (en) * | 2020-12-31 | 2021-04-09 | 界首市天鸿新材料股份有限公司 | Preparation method of modified polyethylene lithium battery diaphragm |
| CN114031957A (en) * | 2021-12-02 | 2022-02-11 | 深圳清华大学研究院 | Preparation method and application of nano graphite powder with heat storage and heat conduction functions |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100727553B1 (en) * | 2006-03-02 | 2007-06-14 | 정명구 | Roller with self-extinguishing flame |
| CN101100298A (en) * | 2007-08-07 | 2008-01-09 | 哈尔滨工程大学 | Method for preparing expanded graphite |
| CN103012906A (en) * | 2011-09-26 | 2013-04-03 | 蓝星(北京)化工机械有限公司 | Ultra-high molecular weight polyethylene resin composition and application thereof |
| CN103772796A (en) * | 2014-01-27 | 2014-05-07 | 合肥工业大学 | Expanded graphite modified injection molding grade ultra-high molecular weight polyethylene and preparation method thereof |
-
2018
- 2018-12-27 CN CN201811612323.0A patent/CN109467790A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100727553B1 (en) * | 2006-03-02 | 2007-06-14 | 정명구 | Roller with self-extinguishing flame |
| CN101100298A (en) * | 2007-08-07 | 2008-01-09 | 哈尔滨工程大学 | Method for preparing expanded graphite |
| CN103012906A (en) * | 2011-09-26 | 2013-04-03 | 蓝星(北京)化工机械有限公司 | Ultra-high molecular weight polyethylene resin composition and application thereof |
| CN103772796A (en) * | 2014-01-27 | 2014-05-07 | 合肥工业大学 | Expanded graphite modified injection molding grade ultra-high molecular weight polyethylene and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635908A (en) * | 2020-12-31 | 2021-04-09 | 界首市天鸿新材料股份有限公司 | Preparation method of modified polyethylene lithium battery diaphragm |
| CN112635908B (en) * | 2020-12-31 | 2022-05-31 | 界首市天鸿新材料股份有限公司 | Preparation method of modified polyethylene lithium battery diaphragm |
| CN114031957A (en) * | 2021-12-02 | 2022-02-11 | 深圳清华大学研究院 | Preparation method and application of nano graphite powder with heat storage and heat conduction functions |
| CN114031957B (en) * | 2021-12-02 | 2022-11-15 | 深圳清华大学研究院 | Preparation method and application of nano graphite powder with heat storage and heat conduction functions |
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Application publication date: 20190315 |