CN110938247A - High-strength PE plastic barrel and preparation process thereof - Google Patents
High-strength PE plastic barrel and preparation process thereof Download PDFInfo
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- CN110938247A CN110938247A CN201911293357.2A CN201911293357A CN110938247A CN 110938247 A CN110938247 A CN 110938247A CN 201911293357 A CN201911293357 A CN 201911293357A CN 110938247 A CN110938247 A CN 110938247A
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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
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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
- 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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- 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
- C08K2201/011—Nanostructured additives
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a high-strength PE plastic barrel which is prepared from the following raw materials in parts by weight: 50-60 parts of high-density polyethylene, 17-22 parts of cross-linked polyethylene, 25-32 parts of polytetramethylene adipamide, 8-12 parts of oxidized polyethylene, 5-7 parts of basalt fiber and 3-5 parts of nano filler. The high-strength PE plastic barrel is prepared by selecting raw materials, optimizing the content of each raw material, selecting high-density polyethylene, cross-linked polyethylene, polytetramethylene adipamide, oxidized polyethylene, basalt fiber, nano filler and the like in a proper proportion, and has good compatibility of each component, thereby not only fully playing respective advantages, but also complementing and cooperating with each other to play a good synergistic role, so that the prepared high-strength PE plastic barrel has high tensile strength, excellent mechanical property and good comprehensive performance.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a high-strength PE plastic barrel and a preparation process thereof.
Background
Polyethylene (PE) is a thermoplastic resin prepared by polymerizing ethylene, and industrially also comprises a copolymer of ethylene and a small amount of α -olefin, and the polyethylene is odorless, nontoxic, has a wax-like hand feeling, has excellent low-temperature resistance (the lowest use temperature can reach-100 to-70 ℃), good chemical stability, can resist corrosion of most of acid and alkali (cannot resist acid with oxidation property), is insoluble in common solvents at normal temperature, and has small water absorption and excellent electrical insulation.
The polyethylene is classified into high density polyethylene, low density polyethylene and linear low density polyethylene according to the polymerization method, molecular weight and chain structure.
Low Density Polyethylene (LDPE), commonly known as high pressure polyethylene, is used mainly in plastic bags, agricultural films, etc. because of its relatively low density and the softest material.
High Density Polyethylene (HDPE), commonly known as low pressure polyethylene, has higher temperature resistance, oil resistance, vapor permeability resistance and environmental stress crack resistance compared with LDPE and LLDPE, has good electrical insulation, impact resistance and cold resistance, and is mainly applied to the fields of blow molding, injection molding and the like.
Linear Low Density Polyethylene (LLDPE), which is a copolymer of ethylene and a small amount of a higher α -olefin polymerized in the presence of a catalyst, is similar in appearance to LDPE, is poor in transparency, but has good surface gloss, and has the advantages of low temperature toughness, high modulus, bending and stress cracking resistance, good impact strength at low temperature, and the like.
Polyethylene can be formed by extrusion, injection, molding, blow molding, melt spinning and the like, is widely applied to industry, agriculture, packaging and daily industry, is quite widely applied in China, is the largest user of the polyethylene, consumes about 77 percent of low-density polyethylene and 18 percent of high-density polyethylene, and occupies a larger proportion in the consumption structure of injection molded products, electric wires and cables, hollow products and the like, and plays a very important role in the plastic industry.
Although the application field of polyethylene is very wide, LLDPE and HDPE are in the growth stage of the life cycle at present; LDPE gradually entered the development maturation stage at the end of the 1980 s. However, the plastic buckets currently made of PE still have the following problems:
the mechanical properties such as tensile strength and the like are poor, so that the comprehensive use performance is poor.
Based on the situation, the invention provides the high-strength PE plastic barrel and the preparation process thereof, and the problems can be effectively solved.
Disclosure of Invention
The invention aims to provide a high-strength PE plastic barrel and a preparation process thereof. The high-strength PE plastic barrel is prepared by selecting raw materials, optimizing the content of each raw material, selecting high-density polyethylene, cross-linked polyethylene, polytetramethylene adipamide, oxidized polyethylene, basalt fiber, nano filler and the like in a proper proportion, and has good compatibility of each component, thereby not only fully playing respective advantages, but also complementing and cooperating with each other to play a good synergistic role, so that the prepared high-strength PE plastic barrel has high tensile strength, excellent mechanical property and good comprehensive performance.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a high-strength PE plastic barrel is prepared from the following raw materials in parts by weight:
50-60 parts of high-density polyethylene,
17-22 parts of crosslinked polyethylene,
25-32 parts of polytetramethylene adipamide,
8-12 parts of oxidized polyethylene,
5-7 parts of basalt fiber,
3-5 parts of nano filler.
The high-strength PE plastic barrel is prepared by selecting raw materials, optimizing the content of each raw material, selecting high-density polyethylene, cross-linked polyethylene, polytetramethylene adipamide (which can obviously improve the mechanical properties such as tensile strength) and the like, oxidized polyethylene (which can increase the compatibility of each component), basalt fiber (which can obviously improve the mechanical properties such as tensile strength) and the like in proper proportion, and nano filler (which can improve the mechanical properties such as tensile strength) and the like, wherein the compatibility of each component is good, so that the advantages of the components are fully exerted, and the components are mutually supplemented and matched to play a good synergistic role, so that the prepared high-strength PE plastic barrel is high in tensile strength, excellent in mechanical properties and good in comprehensive properties.
Preferably, the high-strength PE plastic barrel is prepared from the following raw materials in parts by weight:
55 parts of high-density polyethylene,
19.5 parts of crosslinked polyethylene,
28.5 parts of polytetramethylene adipamide,
10 portions of oxidized polyethylene,
6 portions of basalt fiber,
And 4 parts of nano filler.
Preferably, the nano-filler is nano calcium carbonate.
Preferably, the high-strength PE plastic barrel further comprises the following raw materials in parts by weight: 3.5-4.5 parts of an antioxidant.
Preferably, the antioxidant is a mixture of antioxidant B900 and antioxidant 168, wherein the mass ratio of the antioxidant B to the antioxidant 168 is 1: 0.35 to 0.45.
Preferably, the high-strength PE plastic barrel further comprises the following raw materials in parts by weight: 4-5 parts of a heat stabilizer.
Preferably, the heat stabilizer is a heat stabilizer 9010-1.
Preferably, the high-strength PE plastic barrel further comprises the following raw materials in parts by weight: 3-4 parts of an ultraviolet absorbent.
Preferably, the ultraviolet absorbent is an ultraviolet absorbent UV-329.
The invention also provides a preparation process of the high-strength PE plastic barrel, which comprises the following steps:
A. respectively weighing the raw materials of the high-strength PE plastic barrel, and uniformly mixing to obtain a mixed material;
B. feeding the mixed material into an injection molding machine for melting and mixing to obtain a mixed melt; and carrying out an injection molding process on the mixed melt to obtain the high-strength PE plastic barrel.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the high-strength PE plastic barrel is prepared by selecting raw materials, optimizing the content of each raw material, selecting high-density polyethylene, cross-linked polyethylene, polytetramethylene adipamide (which can obviously improve the mechanical properties such as tensile strength) and the like, oxidized polyethylene (which can increase the compatibility of each component), basalt fiber (which can obviously improve the mechanical properties such as tensile strength) and the like in proper proportion, and nano filler (which can improve the mechanical properties such as tensile strength) and the like, wherein the compatibility of each component is good, so that the advantages of the components are fully exerted, and the components are mutually supplemented and matched to play a good synergistic role, so that the prepared high-strength PE plastic barrel is high in tensile strength, excellent in mechanical properties and good in comprehensive properties.
The preparation process is simple, the operation is simple and convenient, and the manpower and equipment cost are saved.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in connection with specific examples, which should not be construed as limiting the present patent.
The test methods or test methods described in the following examples are conventional methods unless otherwise specified; the reagents and materials, unless otherwise indicated, are conventionally obtained commercially or prepared by conventional methods.
Example 1:
a high-strength PE plastic barrel is prepared from the following raw materials in parts by weight:
50-60 parts of high-density polyethylene,
17-22 parts of crosslinked polyethylene,
25-32 parts of polytetramethylene adipamide,
8-12 parts of oxidized polyethylene,
5-7 parts of basalt fiber,
3-5 parts of nano filler.
Preferably, the high-strength PE plastic barrel is prepared from the following raw materials in parts by weight:
55 parts of high-density polyethylene,
19.5 parts of crosslinked polyethylene,
28.5 parts of polytetramethylene adipamide,
10 portions of oxidized polyethylene,
6 portions of basalt fiber,
And 4 parts of nano filler.
Preferably, the nano-filler is nano calcium carbonate.
Preferably, the high-strength PE plastic barrel further comprises the following raw materials in parts by weight: 3.5-4.5 parts of an antioxidant.
Preferably, the antioxidant is a mixture of antioxidant B900 and antioxidant 168, wherein the mass ratio of the antioxidant B to the antioxidant 168 is 1: 0.35 to 0.45.
Preferably, the high-strength PE plastic barrel further comprises the following raw materials in parts by weight: 4-5 parts of a heat stabilizer.
Preferably, the heat stabilizer is a heat stabilizer 9010-1.
Preferably, the high-strength PE plastic barrel further comprises the following raw materials in parts by weight: 3-4 parts of an ultraviolet absorbent.
Preferably, the ultraviolet absorbent is an ultraviolet absorbent UV-329.
The invention also provides a preparation process of the high-strength PE plastic barrel, which comprises the following steps:
A. respectively weighing the raw materials of the high-strength PE plastic barrel, and uniformly mixing to obtain a mixed material;
B. feeding the mixed material into an injection molding machine for melting and mixing to obtain a mixed melt; and carrying out an injection molding process on the mixed melt to obtain the high-strength PE plastic barrel.
Example 2:
a high-strength PE plastic barrel is prepared from the following raw materials in parts by weight:
50 portions of high-density polyethylene,
17 parts of crosslinked polyethylene,
25 parts of polytetramethylene adipamide,
8 portions of oxidized polyethylene,
5 portions of basalt fiber,
And 5 parts of nano filler.
In this embodiment, the nanofiller is nano calcium carbonate.
In this embodiment, the high-strength PE plastic bucket further comprises the following raw materials in parts by weight: and 3.5 parts of an antioxidant.
In this embodiment, the antioxidant is a mixture of antioxidant B900 and antioxidant 168, wherein the mass ratio of the two is 1: 0.35.
in this embodiment, the high-strength PE plastic bucket further comprises the following raw materials in parts by weight: 4 parts of a heat stabilizer.
In this example, the thermal stabilizer is thermal stabilizer 9010-1.
In this embodiment, the high-strength PE plastic bucket further comprises the following raw materials in parts by weight: and 3 parts of an ultraviolet absorber.
In the present embodiment, the ultraviolet absorber is an ultraviolet absorber UV-329.
In this embodiment, the preparation process of the high strength PE plastic bucket includes the following steps:
A. respectively weighing the raw materials of the high-strength PE plastic barrel, and uniformly mixing to obtain a mixed material;
B. feeding the mixed material into an injection molding machine for melting and mixing to obtain a mixed melt; and carrying out an injection molding process on the mixed melt to obtain the high-strength PE plastic barrel.
Example 3:
a high-strength PE plastic barrel is prepared from the following raw materials in parts by weight:
60 portions of high-density polyethylene,
22 portions of crosslinked polyethylene,
32 parts of polytetramethylene adipamide,
12 portions of oxidized polyethylene,
7 parts of basalt fiber,
And 3 parts of nano filler.
In this embodiment, the nanofiller is nano calcium carbonate.
In this embodiment, the high-strength PE plastic bucket further comprises the following raw materials in parts by weight: and 4.5 parts of an antioxidant.
In this embodiment, the antioxidant is a mixture of antioxidant B900 and antioxidant 168, wherein the mass ratio of the two is 1: 0.45.
in this embodiment, the high-strength PE plastic bucket further comprises the following raw materials in parts by weight: 5 parts of a heat stabilizer.
In this example, the thermal stabilizer is thermal stabilizer 9010-1.
In this embodiment, the high-strength PE plastic bucket further comprises the following raw materials in parts by weight: 4 parts of an ultraviolet absorber.
In the present embodiment, the ultraviolet absorber is an ultraviolet absorber UV-329.
In this embodiment, the preparation process of the high strength PE plastic bucket includes the following steps:
A. respectively weighing the raw materials of the high-strength PE plastic barrel, and uniformly mixing to obtain a mixed material;
B. feeding the mixed material into an injection molding machine for melting and mixing to obtain a mixed melt; and carrying out an injection molding process on the mixed melt to obtain the high-strength PE plastic barrel.
Example 4:
a high-strength PE plastic barrel is prepared from the following raw materials in parts by weight:
55 parts of high-density polyethylene,
19.5 parts of crosslinked polyethylene,
28.5 parts of polytetramethylene adipamide,
10 portions of oxidized polyethylene,
6 portions of basalt fiber,
And 4 parts of nano filler.
In this embodiment, the nanofiller is nano calcium carbonate.
In this embodiment, the high-strength PE plastic bucket further comprises the following raw materials in parts by weight: and 4 parts of an antioxidant.
In this embodiment, the antioxidant is a mixture of antioxidant B900 and antioxidant 168, wherein the mass ratio of the two is 1: 0.4.
in this embodiment, the high-strength PE plastic bucket further comprises the following raw materials in parts by weight: 4.5 parts of a heat stabilizer.
In this example, the thermal stabilizer is thermal stabilizer 9010-1.
In this embodiment, the high-strength PE plastic bucket further comprises the following raw materials in parts by weight: 3.5 parts of an ultraviolet absorber.
In the present embodiment, the ultraviolet absorber is an ultraviolet absorber UV-329.
In this embodiment, the preparation process of the high strength PE plastic bucket includes the following steps:
A. respectively weighing the raw materials of the high-strength PE plastic barrel, and uniformly mixing to obtain a mixed material;
B. feeding the mixed material into an injection molding machine for melting and mixing to obtain a mixed melt; and carrying out an injection molding process on the mixed melt to obtain the high-strength PE plastic barrel.
The following performance tests were performed on the high strength PE plastic barrels obtained in examples 2 to 4 of the present invention (standard samples were made of the material of the high strength PE plastic barrels, and the relevant test standards were referred to) and the common polyethylene material, and the test results are shown in table 1:
TABLE 1
As can be seen from the above table, the high strength PE plastic bucket of the present invention has the following advantages: the tensile strength is far higher than that of the common polyethylene material, and the mechanical property is excellent and the comprehensive property is good.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. The high-strength PE plastic barrel is characterized by being prepared from the following raw materials in parts by weight:
50-60 parts of high-density polyethylene,
17-22 parts of crosslinked polyethylene,
25-32 parts of polytetramethylene adipamide,
8-12 parts of oxidized polyethylene,
5-7 parts of basalt fiber,
3-5 parts of nano filler.
2. The high-strength PE plastic barrel as claimed in claim 1, wherein the high-strength PE plastic barrel is made of the following raw materials in parts by weight:
55 parts of high-density polyethylene,
19.5 parts of crosslinked polyethylene,
28.5 parts of polytetramethylene adipamide,
10 portions of oxidized polyethylene,
6 portions of basalt fiber,
And 4 parts of nano filler.
3. The high strength PE plastic drum as claimed in claim 1, wherein the nano filler is nano calcium carbonate.
4. The high-strength PE plastic bucket according to claim 1, further comprising the following raw materials in parts by weight: 3.5-4.5 parts of an antioxidant.
5. The high-strength PE plastic barrel as claimed in claim 4, wherein the antioxidant is a mixture of antioxidant B900 and antioxidant 168, and the mass ratio of the antioxidant B to the antioxidant 168 is 1: 0.35 to 0.45.
6. The high-strength PE plastic bucket according to claim 1, further comprising the following raw materials in parts by weight: 4-5 parts of a heat stabilizer.
7. The high-strength PE plastic barrel as claimed in claim 6, wherein the heat stabilizer is 9010-1.
8. The high-strength PE plastic bucket according to claim 1, further comprising the following raw materials in parts by weight: 3-4 parts of an ultraviolet absorbent.
9. The high strength PE plastic bucket according to claim 8 where said ultraviolet absorber is ultraviolet absorber UV-329.
10. A process for preparing a high strength PE plastic drum as claimed in any one of claims 1 to 9, comprising the steps of:
A. respectively weighing the raw materials of the high-strength PE plastic barrel, and uniformly mixing to obtain a mixed material;
B. feeding the mixed material into an injection molding machine for melting and mixing to obtain a mixed melt; and carrying out an injection molding process on the mixed melt to obtain the high-strength PE plastic barrel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911293357.2A CN110938247A (en) | 2019-12-16 | 2019-12-16 | High-strength PE plastic barrel and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911293357.2A CN110938247A (en) | 2019-12-16 | 2019-12-16 | High-strength PE plastic barrel and preparation process thereof |
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Application publication date: 20200331 |