CN113087990A - Production process of low-temperature-resistant high-toughness modified polyethylene PE material - Google Patents
Production process of low-temperature-resistant high-toughness modified polyethylene PE material Download PDFInfo
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- CN113087990A CN113087990A CN202110359381.2A CN202110359381A CN113087990A CN 113087990 A CN113087990 A CN 113087990A CN 202110359381 A CN202110359381 A CN 202110359381A CN 113087990 A CN113087990 A CN 113087990A
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- C—CHEMISTRY; METALLURGY
- 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
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
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- C—CHEMISTRY; METALLURGY
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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- C—CHEMISTRY; METALLURGY
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/16—Solid spheres
- C08K7/18—Solid spheres inorganic
- C08K7/20—Glass
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- C—CHEMISTRY; METALLURGY
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
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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
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- 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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
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Abstract
The invention discloses a production process of a low-temperature-resistant high-toughness modified Polyethylene (PE) material, and belongs to the technical field of polyethylene plastic recovery. It comprises the following steps: (1) recovering and treating waste polyethylene plastics; (2) preparing metal fibers; (3) preparing wear-resistant particles; (4) mixing, extruding and granulating, namely uniformly mixing 100 parts of waste polyethylene plastic particles, 2-5 parts of metal fibers, 1-3 parts of glass beads, 0.1-0.5 part of antioxidant, 0.2-0.7 part of ultraviolet absorbent, 4-6 parts of flame retardant and 1-2 parts of surface modifier according to the mass part ratio, and putting the mixture into a double-screw extruder for extruding and granulating. The waste polyethylene plastic can be used as a main raw material of automobile plastic parts after being recycled, so that the raw material cost is saved. The metal fiber is added into the waste polyethylene plastic, so that the conductivity can be improved, the antistatic effect is improved, the flexibility can be improved through the metal fiber, the anti-cracking performance is improved, the impact cracking is prevented, and the plastic oil tank is particularly suitable for manufacturing plastic oil tanks.
Description
Technical Field
The invention relates to a production process of a low-temperature-resistant high-toughness modified Polyethylene (PE) material, belonging to the technical field of polyethylene plastic recovery.
Background
Polyethylene (PE) is a thermoplastic resin obtained by polymerizing ethylene. The polyethylene is odorless and nontoxic, feels like wax, has excellent low-temperature resistance (the lowest use temperature can reach-100 to-70 ℃), has good chemical stability, and can resist corrosion of most of acid and alkali (acid with oxidation property is not resisted, so that an antioxidant needs to be added). Is insoluble in common solvents at room temperature, has low water absorption and excellent electrical insulation.
At present, the consumption of polyethylene on automobiles reaches 2 kg-7 kg per automobile, which is second to PVC, ABS, PP and PUR and is on the 5 th position. The plastic oil tank is mainly used for manufacturing automobile air ducts, various storage tanks and the like, such as air ducts, brake fluid storage tanks, cleaning fluid tanks, mud guards, lining plates and luggage compartment clapboards, and in recent years, some European automobile models are made of plastic oil tanks which are mainly made of ultra-high molecular weight polyethylene.
Because the polyethylene material is thermoplastic plastic and has good recyclability, the waste polyethylene material can be recycled, so that the environment can be protected, and the cost can be saved. Especially in these areas of automotive applications, automotive production costs can be saved. However, in the field of automobiles, polyethylene raw materials are required to have good low temperature resistance, high toughness, antistatic property, wear resistance and other properties, and the polyethylene materials directly recycled have defects in the properties. Therefore, the production process of the low-temperature-resistant high-toughness modified polyethylene PE material is designed, which can keep the low production cost of the waste polyethylene plastic and enhance the performances of various aspects.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a production process of a low-temperature-resistant high-toughness modified polyethylene PE material, which solves the problem of how to produce reinforced automobile plastic parts by using waste polyethylene plastics at low cost.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a production process of a low-temperature-resistant high-toughness modified polyethylene PE material comprises the following steps:
(1) the method comprises the following steps of (1) recycling waste polyethylene plastics, namely sorting, crushing the recycled waste polyethylene plastics into particles, cleaning and drying the particles to obtain waste polyethylene plastic particles;
(2) preparing metal fibers, namely drawing a metal wire for multiple times by adopting a bundling drawing device, adding an annealing process between the drawing processes for multiple times to form the metal wire with the wire diameter of 4-20 mu m, and cutting the drawn metal wire to prepare the metal fibers with the length of 0.5-4 mm;
(3) preparing wear-resistant particles, namely crushing glass into particles, screening to select particles with required particle size, melting the glass particles by uniformly heating at a temperature higher than a melting point, forming glass beads under the action of surface tension, screening again, and selecting the glass beads with the diameter of 2-4 mu m;
(4) mixing, extruding and granulating, namely uniformly mixing 100 parts of waste polyethylene plastic particles, 2-5 parts of metal fibers, 1-3 parts of glass beads, 0.1-0.5 part of antioxidant, 0.2-0.7 part of ultraviolet absorbent, 4-6 parts of flame retardant and 1-2 parts of surface modifier according to the mass part ratio, and putting the mixture into a double-screw extruder for extruding and granulating.
As a preferable example, the metal fiber is at least one of stainless steel fiber and copper fiber.
As a preferred example, the barrel temperature of the twin-screw extruder is 200-220 ℃.
The invention has the beneficial effects that:
(1) the waste polyethylene plastic can be used as a main raw material of automobile plastic parts after being recycled, so that the raw material cost is saved.
(2) The metal fiber is added into the waste polyethylene plastic, so that the conductivity can be improved, the antistatic effect is improved, the flexibility can be improved through the metal fiber, the anti-cracking performance is improved, the impact cracking is prevented, and the plastic oil tank is particularly suitable for manufacturing plastic oil tanks.
(3) The wear-resistant particle glass beads are added into the waste polyethylene plastic, so that the scratch-resistant and wear-resistant effects can be improved.
(4) The antioxidant and the ultraviolet absorbent can prolong the service life of the polyethylene, prevent acid with oxidation property from corroding the polyethylene material, the flame retardant can prevent automobile plastic parts from burning quickly, the safety is improved, and the surface modifier can improve the binding performance between the surface of the inorganic filler glass bead and the organic polymer polyethylene.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purpose and the efficacy of the invention easily understood, the invention is further described with reference to the following embodiments.
Example 1
A production process of a low-temperature-resistant high-toughness modified polyethylene PE material comprises the following steps:
(1) the method comprises the following steps of (1) recycling waste polyethylene plastics, namely sorting, crushing the recycled waste polyethylene plastics into particles, cleaning and drying the particles to obtain waste polyethylene plastic particles;
(2) preparing metal fibers, namely drawing the metal wires for multiple times by adopting a bundling drawing device, adding an annealing process between the drawing processes for multiple times to form the metal wires with the wire diameter of 4 mu m, cutting the drawn metal wires to prepare the metal fibers with the length of 4mm, wherein the metal fibers adopt stainless steel fibers;
(3) preparing wear-resistant particles, namely crushing glass into particles, screening to select particles with required particle size, melting the glass particles by uniformly heating at a temperature higher than a melting point, forming glass beads under the action of surface tension, screening again, and selecting the glass beads with the diameter of 4 mu m;
(4) mixing, extruding and granulating, namely uniformly mixing 100 parts of waste polyethylene plastic particles, 2 parts of metal fibers, 1 part of glass microspheres, 0.1 part of antioxidant, 0.2 part of ultraviolet absorbent, 4 parts of flame retardant and 1 part of surface modifier according to the mass part ratio, and putting the mixture into a double-screw extruder for extruding and granulating, wherein the temperature of a charging barrel of the double-screw extruder is 210 ℃.
Example 2
A production process of a low-temperature-resistant high-toughness modified polyethylene PE material comprises the following steps:
(1) the method comprises the following steps of (1) recycling waste polyethylene plastics, namely sorting, crushing the recycled waste polyethylene plastics into particles, cleaning and drying the particles to obtain waste polyethylene plastic particles;
(2) preparing metal fibers, namely drawing the metal wires for multiple times by adopting a bundling drawing device, adding an annealing process between the drawing processes for multiple times to form the metal wires with the wire diameter of 10 mu m, cutting the drawn metal wires to prepare the metal fibers with the length of 2mm, wherein the metal fibers adopt copper fibers;
(3) preparing wear-resistant particles, namely crushing glass into particles, screening to select particles with required particle size, melting the glass particles by uniformly heating at a temperature higher than a melting point, forming glass beads under the action of surface tension, screening again, and selecting the glass beads with the diameter of 4 mu m;
(4) mixing, extruding and granulating, namely uniformly mixing 100 parts of waste polyethylene plastic particles, 3 parts of metal fibers, 2 parts of glass beads, 0.5 part of antioxidant, 0.7 part of ultraviolet absorbent, 6 parts of flame retardant and 1 part of surface modifier according to the mass part ratio, and putting the mixture into a double-screw extruder for extruding and granulating, wherein the temperature of a charging barrel of the double-screw extruder is 200 ℃.
Example 3
A production process of a low-temperature-resistant high-toughness modified polyethylene PE material comprises the following steps:
(1) the method comprises the following steps of (1) recycling waste polyethylene plastics, namely sorting, crushing the recycled waste polyethylene plastics into particles, cleaning and drying the particles to obtain waste polyethylene plastic particles;
(2) preparing metal fibers, namely drawing the metal wires for multiple times by adopting a bundling drawing device, adding an annealing process between the drawing processes for multiple times to form the metal wires with the wire diameter of 20 mu m, cutting the drawn metal wires to prepare the metal fibers with the length of 0.5mm, wherein the metal fibers adopt stainless steel fibers;
(3) preparing wear-resistant particles, namely crushing glass into particles, screening to select particles with required particle size, melting the glass particles by uniformly heating at a temperature higher than a melting point, forming glass beads under the action of surface tension, screening again, and selecting the glass beads with the diameter of 4 mu m;
(4) mixing, extruding and granulating, namely uniformly mixing 100 parts of waste polyethylene plastic particles, 5 parts of metal fibers, 3 parts of glass microspheres, 0.1 part of antioxidant, 0.2 part of ultraviolet absorbent, 4 parts of flame retardant and 2 parts of surface modifier according to the mass part ratio, and putting the mixture into a double-screw extruder for extruding and granulating, wherein the temperature of a charging barrel of the double-screw extruder is 220 ℃.
Through the application of the above embodiment, the following advantages are provided:
(1) the waste polyethylene plastic can be used as a main raw material of automobile plastic parts after being recycled, so that the raw material cost is saved.
(2) The metal fiber is added into the waste polyethylene plastic, so that the conductivity can be improved, the antistatic effect is improved, the flexibility can be improved through the metal fiber, the anti-cracking performance is improved, the impact cracking is prevented, and the plastic oil tank is particularly suitable for manufacturing plastic oil tanks.
(3) The wear-resistant particle glass beads are added into the waste polyethylene plastic, so that the scratch-resistant and wear-resistant effects can be improved.
(4) The antioxidant and the ultraviolet absorbent can prolong the service life of the polyethylene, prevent acid with oxidation property from corroding the polyethylene material, the flame retardant can prevent automobile plastic parts from burning quickly, the safety is improved, and the surface modifier can improve the binding performance between the surface of the inorganic filler glass bead and the organic polymer polyethylene.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A production process of a low-temperature-resistant high-toughness modified polyethylene PE material is characterized by comprising the following steps of:
(1) the method comprises the following steps of (1) recycling waste polyethylene plastics, namely sorting, crushing the recycled waste polyethylene plastics into particles, cleaning and drying the particles to obtain waste polyethylene plastic particles;
(2) preparing metal fibers, namely drawing a metal wire for multiple times by adopting a bundling drawing device, adding an annealing process between the drawing processes for multiple times to form the metal wire with the wire diameter of 4-20 mu m, and cutting the drawn metal wire to prepare the metal fibers with the length of 0.5-4 mm;
(3) preparing wear-resistant particles, namely crushing glass into particles, screening to select particles with required particle size, melting the glass particles by uniformly heating at a temperature higher than a melting point, forming glass beads under the action of surface tension, screening again, and selecting the glass beads with the diameter of 2-4 mu m;
(4) mixing, extruding and granulating, namely uniformly mixing 100 parts of waste polyethylene plastic particles, 2-5 parts of metal fibers, 1-3 parts of glass beads, 0.1-0.5 part of antioxidant, 0.2-0.7 part of ultraviolet absorbent, 4-6 parts of flame retardant and 1-2 parts of surface modifier according to the mass part ratio, and putting the mixture into a double-screw extruder for extruding and granulating.
2. The production process of the low temperature resistant high toughness modified polyethylene PE material according to claim 1, wherein the metal fiber is at least one of stainless steel fiber and copper fiber.
3. The process for producing the low temperature resistant high toughness modified polyethylene PE material as claimed in claim 1, wherein the barrel temperature of the twin-screw extruder is 200-220 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110359381.2A CN113087990A (en) | 2021-04-02 | 2021-04-02 | Production process of low-temperature-resistant high-toughness modified polyethylene PE material |
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| CN202110359381.2A CN113087990A (en) | 2021-04-02 | 2021-04-02 | Production process of low-temperature-resistant high-toughness modified polyethylene PE material |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4138388A (en) * | 1977-10-08 | 1979-02-06 | Firma Pennekamp & Huesker Kg | Method for producing a molding compound |
| US20050127555A1 (en) * | 2002-04-18 | 2005-06-16 | Meinhard Gusik | Filled granulates consisting of high or ultra-high molecular weight polyethylenes and method for producing said granulates |
| CN1772798A (en) * | 2005-08-03 | 2006-05-17 | 北京纳盛通新材料科技有限公司 | Conductive plastic and its processing method and apparatus |
| CN103709485A (en) * | 2013-12-27 | 2014-04-09 | 湖北金科环保科技有限公司 | Special material for modification and regeneration of polyethylene anticorrosive pipeline and preparation method thereof |
| CN104945900A (en) * | 2015-07-29 | 2015-09-30 | 苏州新区华士达工程塑胶有限公司 | Low-temperature resistant toughening automobile-used plastic |
-
2021
- 2021-04-02 CN CN202110359381.2A patent/CN113087990A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4138388A (en) * | 1977-10-08 | 1979-02-06 | Firma Pennekamp & Huesker Kg | Method for producing a molding compound |
| US20050127555A1 (en) * | 2002-04-18 | 2005-06-16 | Meinhard Gusik | Filled granulates consisting of high or ultra-high molecular weight polyethylenes and method for producing said granulates |
| CN1652911A (en) * | 2002-04-18 | 2005-08-10 | 提克纳有限公司 | Filled granulates consisting of high or ultra-high molecular weight polyethylenes and method for producing said granulates |
| CN1772798A (en) * | 2005-08-03 | 2006-05-17 | 北京纳盛通新材料科技有限公司 | Conductive plastic and its processing method and apparatus |
| CN103709485A (en) * | 2013-12-27 | 2014-04-09 | 湖北金科环保科技有限公司 | Special material for modification and regeneration of polyethylene anticorrosive pipeline and preparation method thereof |
| CN104945900A (en) * | 2015-07-29 | 2015-09-30 | 苏州新区华士达工程塑胶有限公司 | Low-temperature resistant toughening automobile-used plastic |
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Application publication date: 20210709 |
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