CN112625328A - High-temperature-resistant ultrahigh molecular weight polyethylene material and preparation method thereof - Google Patents
High-temperature-resistant ultrahigh molecular weight polyethylene material and preparation method thereof Download PDFInfo
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- CN112625328A CN112625328A CN202011603316.1A CN202011603316A CN112625328A CN 112625328 A CN112625328 A CN 112625328A CN 202011603316 A CN202011603316 A CN 202011603316A CN 112625328 A CN112625328 A CN 112625328A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- 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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/068—Ultra high molecular weight polyethylene
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Abstract
The invention discloses a high-temperature resistant ultra-high molecular weight polyethylene material and a preparation method thereof, comprising 100 parts of ultra-high molecular weight polyethylene; 0.1-5 parts of a lubricant; 10-20 parts of a filler; 5-20 parts of reinforcing fiber; 10-30 parts of filler, wherein the filler is kaolin or calcium carbonate, and has the following beneficial effects: when the mass portion of the filler is between 10 and 20, the high temperature resistance of the ultra-high molecular weight polyethylene can be obviously improved on the basis of ensuring the mechanical property, the processing technique property and the service property of the ultra-high molecular weight polyethylene, the high temperature resistance of the ultra-high molecular weight polyethylene is improved by about 20 percent by the ultra-high molecular weight polyethylene, and if the composite material is used in a working place with low stress, the filler can be added to about 30 portions, and the composite material is safe, environment-friendly, economical and green.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a high-temperature-resistant ultrahigh molecular weight polyethylene material and a preparation method thereof.
Background
Ultra-high molecular weight polyethylene has very excellent properties, but its heat distortion temperature is low, typically 85 ℃, which limits its application in higher temperature environments. However, when the temperature is increased or the material is used in a high-temperature environment, the material, such as ultra-high molecular weight polyethylene, is deformed, and the use is affected.
At present, although many researches on modification of ultra-high molecular weight polyethylene are carried out at home and abroad, the researches respectively focus on improving the performances of the ultra-high molecular weight polyethylene in different aspects, for example, a modification is mentioned in a U.S. patent, and the molding process performance of the ultra-high molecular weight polyethylene can be improved on the basis of not changing other performances; the German O Jacobs and the like carry out blending modification on the ultra-high molecular weight polyethylene fiber, obviously improves the mechanical property of the material and leads the material to be more creep-resistant and wear-resistant. Several studies of the university have focused on the modification of the fluidity of the ultra-high molecular weight polyethylene, and little research has focused on improving the high temperature resistance of the ultra-high molecular weight polyethylene.
In the prior art, although the high temperature resistance of the ultra-high molecular weight polyethylene is improved, the mechanical property, the processing property, the service performance and the like of the ultra-high molecular weight polyethylene are reduced to a great extent, and the ultra-high molecular weight polyethylene is not environment-friendly.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a high-temperature-resistant ultrahigh molecular weight polyethylene material and a preparation method thereof, so as to overcome the technical problems in the prior related art.
The technical scheme of the invention is realized as follows:
a high temperature resistant ultra-high molecular weight polyethylene material comprising: 100 parts of ultrahigh molecular weight polyethylene; 0.1-5 parts of a lubricant; 10-20 parts of a filler; 5-20 parts of reinforcing fiber; 10-30 parts of a filler, wherein the filler is kaolin or calcium carbonate.
A preparation method of a high-temperature-resistant ultrahigh molecular weight polyethylene material is characterized by comprising the following specific steps:
s1: the preparation method comprises the steps of obtaining the ultra-high molecular weight polyethylene and the lubricant in proportion, stirring at a high speed for 8-15 minutes, and heating to 50-70 ℃ while stirring;
s2: then the filling material and the reinforcing fiber are activated by a coupling agent;
s3: adding kaolin or calcium carbonate and the filler and the reinforcing fiber which are activated by the coupling agent, and stirring at a high speed for 3-5 minutes to obtain a mixed raw material;
s4: extruding and molding by an extruder to prepare composite materials with different specifications and shapes;
s5: when the filler is 10 parts of kaolin, the Vicat softening temperature of the composite material is 103 ℃; when the filler is 10 parts of calcium carbonate, the Vicat softening temperature of the composite material is 105 ℃, and the obtained composite material has the best mechanical property, processing property and use property;
s6: when the filler is 30 parts of kaolin, the Vicat softening temperature of the composite material is 113 ℃; when the filler is 30 parts of calcium carbonate, the Vicat softening temperature of the composite material is 111 ℃, and the mechanical property of the composite material has a remarkable descending trend.
Further, the coupling agent is one or more of a silane coupling agent, a titanate coupling agent and an aluminate coupling agent.
Further, the coupling agent activating treatment process is to take 0.5-3.5 parts of the coupling agent by the total mass of the filling material or the reinforcing fiber, and dilute the coupling agent by absolute ethyl alcohol according to the volume ratio of 8-12: 1; adding the coupling agent/absolute ethyl alcohol mixed solution while stirring the filler or the reinforcing fiber, continuously stirring for a plurality of minutes after the solution is completely poured, then drying in an oven with the set temperature of 70-90 ℃, taking out and grinding.
Further, the lubricant is selected from one or more of paraffin, polyethylene wax, oxidized polyethylene wax, stearic acid, n-butyl stearate and lead stearate.
The invention provides a high-temperature-resistant ultrahigh molecular weight polyethylene material and a preparation method thereof, and the high-temperature-resistant ultrahigh molecular weight polyethylene material has the following beneficial effects:
(1) when the filler is 10 parts of kaolin, the Vicat softening temperature of the composite material is 103 ℃; when the filler is 10 parts of calcium carbonate, the Vicat softening temperature of the composite material is 105 ℃, the mechanical property, the processing property and the service performance of the obtained composite material are the best, and when the filler is 30 parts of kaolin, the Vicat softening temperature of the composite material is 113 ℃; when the filler is 30 parts of calcium carbonate, the Vicat softening temperature of the composite material is 111 ℃, and the mechanical property of the composite material has an obvious descending trend, so that when the filler is 10 to 20 parts by weight, the high temperature resistance of the ultra-high molecular weight polyethylene can be obviously improved on the basis of ensuring the mechanical property, the processing technique property and the service property of the ultra-high molecular weight polyethylene, and the ultra-high molecular weight improves the high temperature resistance of the ultra-high molecular weight polyethylene by about 20 percent. When the composite material is used in a working place with low stress, the filler can be added to about 30 parts, and the composite material is safe, environment-friendly, economical and green.
(2) The coupling agent is one or more of silane coupling agent, titanate coupling agent and aluminate coupling agent, and can improve the interface action between inorganic matters and organic matters, thereby greatly improving the performance of the composite material.
(3) The process of activating the coupling agent comprises the steps of taking 0.5-3.5 parts of the coupling agent by the total mass of the filling material or the reinforcing fiber, and diluting the coupling agent by absolute ethyl alcohol according to the volume ratio of 8-12: 1; adding the coupling agent/absolute ethyl alcohol mixed solution while stirring the filling material or the reinforcing fiber, continuously stirring for a plurality of minutes after the solution is completely poured, drying in a drying oven with the set temperature of 70-90 ℃, taking out and grinding,
(4) the lubricant is one or more selected from paraffin, polyethylene wax, oxidized polyethylene wax, stearic acid, n-butyl stearate and lead stearate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a flow chart of a method for preparing a high temperature resistant ultra-high molecular weight polyethylene material according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
The invention is further described with reference to the following drawings and detailed description:
the first embodiment is as follows:
referring to fig. 1, a high temperature resistant ultra-high molecular weight polyethylene material according to an embodiment of the present invention includes 100 parts of ultra-high molecular weight polyethylene; 0.1-5 parts of a lubricant; 10-20 parts of a filler; 5-20 parts of reinforcing fiber; 10-30 parts of a filler, wherein the filler is kaolin or calcium carbonate.
A preparation method of a high-temperature-resistant ultrahigh molecular weight polyethylene material is characterized by comprising the following specific steps:
s1: the preparation method comprises the steps of obtaining the ultra-high molecular weight polyethylene and the lubricant in proportion, stirring at a high speed for 8-15 minutes, and heating to 50-70 ℃ while stirring;
s2: then the filling material and the reinforcing fiber are activated by a coupling agent;
s3: adding kaolin or calcium carbonate and the filler and the reinforcing fiber which are activated by the coupling agent, and stirring at a high speed for 3-5 minutes to obtain a mixed raw material;
s4: extruding and molding by an extruder to prepare composite materials with different specifications and shapes;
s5: when the filler is 10 parts of kaolin, the Vicat softening temperature of the composite material is 103 ℃; when the filler is 10 parts of calcium carbonate, the Vicat softening temperature of the composite material is 105 ℃, and the obtained composite material has the best mechanical property, processing property and use property;
s6: when the filler is 30 parts of kaolin, the Vicat softening temperature of the composite material is 113 ℃; when the filler is 30 parts of calcium carbonate, the Vicat softening temperature of the composite material is 111 ℃, and the mechanical property of the composite material has a remarkable descending trend.
According to the scheme, the ultrahigh molecular weight polyethylene and the lubricant are obtained according to the proportion, the mixture is stirred at a high speed for 8-15 minutes, the mixture is heated to 50-70 ℃ while being stirred, then the filler and the reinforcing fiber are activated by the coupling agent, then the kaolin or the calcium carbonate and the filler and the reinforcing fiber which are activated by the coupling agent are added, the mixture is stirred at a high speed for 3-5 minutes to obtain a mixed raw material, the mixed raw material is extruded and molded by an extruder to prepare the composite materials with different specifications and shapes, and when the filler is 10 parts of kaolin, the Vicat softening temperature of the composite materials is 103 ℃; when the filler is 10 parts of calcium carbonate, the Vicat softening temperature of the composite material is 105 ℃, the mechanical property, the processing property and the service performance of the obtained composite material are the best, and when the filler is 30 parts of kaolin, the Vicat softening temperature of the composite material is 113 ℃; when the filler is 30 parts of calcium carbonate, the Vicat softening temperature of the composite material is 111 ℃, and the mechanical property of the composite material has an obvious descending trend, so that when the filler is 10 to 20 parts by weight, the high temperature resistance of the ultra-high molecular weight polyethylene can be obviously improved on the basis of ensuring the mechanical property, the processing technique property and the service property of the ultra-high molecular weight polyethylene, and the ultra-high molecular weight improves the high temperature resistance of the ultra-high molecular weight polyethylene by about 20 percent. If the filling material is used for a working occasion with low stress, the filling material can be increased to about 30 parts.
Example two:
as shown in fig. 1, the coupling agent is one or more of a silane coupling agent, a titanate coupling agent and an aluminate coupling agent, and can improve the interface action between inorganic substances and organic substances, thereby greatly improving the performance of the composite material.
Example three:
as shown in figure 1, the process of the coupling agent activation treatment is to take 0.5-3.5 parts of the coupling agent by the total mass of the filler or the reinforcing fiber and dilute the coupling agent by absolute ethyl alcohol according to the volume ratio of 8-12: 1; adding the coupling agent/absolute ethyl alcohol mixed solution while stirring the filler or the reinforcing fiber, continuously stirring for a plurality of minutes after the solution is completely poured, then drying in an oven with the set temperature of 70-90 ℃, taking out and grinding.
Example four:
as shown in fig. 1, the lubricant is selected from one or more of paraffin wax, polyethylene wax, oxidized polyethylene wax, stearic acid, n-butyl stearate and lead stearate.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
In practical application, when the filler is 10 parts of kaolin, the Vicat softening temperature of the composite material is 103 ℃; when the filler is 10 parts of calcium carbonate, the Vicat softening temperature of the composite material is 105 ℃, the mechanical property, the processing property and the service performance of the obtained composite material are the best, and when the filler is 30 parts of kaolin, the Vicat softening temperature of the composite material is 113 ℃; when the filler is 30 parts of calcium carbonate, the Vicat softening temperature of the composite material is 111 ℃, and the mechanical property of the composite material has an obvious descending trend, so that when the filler is 10 to 20 parts by weight, the high temperature resistance of the ultra-high molecular weight polyethylene can be obviously improved on the basis of ensuring the mechanical property, the processing technique property and the service property of the ultra-high molecular weight polyethylene, and the ultra-high molecular weight improves the high temperature resistance of the ultra-high molecular weight polyethylene by about 20 percent. When the composite material is used in a working place with low stress, the filler can be added to about 30 parts, and the composite material is safe, environment-friendly, economical and green.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The high-temperature-resistant ultra-high molecular weight polyethylene material is characterized by comprising 100 parts of ultra-high molecular weight polyethylene; 0.1-5 parts of a lubricant; 10-20 parts of a filler; 5-20 parts of reinforcing fiber; 10-30 parts of a filler, wherein the filler is kaolin or calcium carbonate.
A preparation method of a high-temperature-resistant ultrahigh molecular weight polyethylene material is characterized by comprising the following specific steps:
s1: the preparation method comprises the steps of obtaining the ultra-high molecular weight polyethylene and the lubricant in proportion, stirring at a high speed for 8-15 minutes, and heating to 50-70 ℃ while stirring;
s2: then the filling material and the reinforcing fiber are activated by a coupling agent;
s3: adding kaolin or calcium carbonate and the filler and the reinforcing fiber which are activated by the coupling agent, and stirring at a high speed for 3-5 minutes to obtain a mixed raw material;
s4: extruding and molding by an extruder to prepare composite materials with different specifications and shapes;
s5: when the filler is 10 parts of kaolin, the Vicat softening temperature of the composite material is 103 ℃; when the filler is 10 parts of calcium carbonate, the Vicat softening temperature of the composite material is 105 ℃, and the obtained composite material has the best mechanical property, processing property and use property;
s6: when the filler is 30 parts of kaolin, the Vicat softening temperature of the composite material is 113 ℃; when the filler is 30 parts of calcium carbonate, the Vicat softening temperature of the composite material is 111 ℃, and the mechanical property of the composite material has a remarkable descending trend.
2. The high temperature resistant ultra-high molecular weight polyethylene material and the preparation method thereof according to claim 1, wherein the coupling agent is one or more of silane coupling agent, titanate coupling agent and aluminate coupling agent.
3. The high temperature resistant ultra-high molecular weight polyethylene material and the preparation method thereof as claimed in claim 1, wherein the coupling agent activation treatment process is to take 0.5-3.5 parts of the total mass of the filler or the reinforcing fiber, and dilute the coupling agent with absolute ethyl alcohol according to the volume ratio of 8-12: 1; adding the coupling agent/absolute ethyl alcohol mixed solution while stirring the filler or the reinforcing fiber, continuously stirring for a plurality of minutes after the solution is completely poured, then drying in an oven with the set temperature of 70-90 ℃, taking out and grinding.
4. The high temperature resistant ultra-high molecular weight polyethylene material and the preparation method thereof according to claim 1, wherein the lubricant is selected from one or more of paraffin wax, polyethylene wax, oxidized polyethylene wax, stearic acid, n-butyl stearate, and lead stearate.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113999444A (en) * | 2021-10-14 | 2022-02-01 | 扬州宝达橡塑制品有限公司 | Preparation method of high-strength ultrahigh molecular weight polyethylene |
Citations (3)
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| CA2354750A1 (en) * | 2001-08-02 | 2003-02-02 | Ludo Zanzotto | Polyethylene modified asphalt |
| CN104558770A (en) * | 2014-12-19 | 2015-04-29 | 广东特固力士工业皮带有限公司 | Ultrahigh-molecular weight polyethylene composite material and preparation method thereof |
| CN111363227A (en) * | 2020-05-08 | 2020-07-03 | 包头稀土研究院 | Modified ultra-high molecular weight polyethylene composition and preparation method thereof |
-
2020
- 2020-12-30 CN CN202011603316.1A patent/CN112625328A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2354750A1 (en) * | 2001-08-02 | 2003-02-02 | Ludo Zanzotto | Polyethylene modified asphalt |
| CN104558770A (en) * | 2014-12-19 | 2015-04-29 | 广东特固力士工业皮带有限公司 | Ultrahigh-molecular weight polyethylene composite material and preparation method thereof |
| CN111363227A (en) * | 2020-05-08 | 2020-07-03 | 包头稀土研究院 | Modified ultra-high molecular weight polyethylene composition and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 郝绘坤: "超高分子量聚乙烯耐高温改性研究", 《中国优秀博硕士学位论文全文数据库（硕士）》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113999444A (en) * | 2021-10-14 | 2022-02-01 | 扬州宝达橡塑制品有限公司 | Preparation method of high-strength ultrahigh molecular weight polyethylene |
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