CN114031859A - High-molecular modified material of high-cold-resistance UV-resistant intelligent turnover frame for storage and transportation of fresh products - Google Patents
High-molecular modified material of high-cold-resistance UV-resistant intelligent turnover frame for storage and transportation of fresh products Download PDFInfo
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- CN114031859A CN114031859A CN202111531472.6A CN202111531472A CN114031859A CN 114031859 A CN114031859 A CN 114031859A CN 202111531472 A CN202111531472 A CN 202111531472A CN 114031859 A CN114031859 A CN 114031859A
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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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
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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
- C08L2205/24—Crystallisation aids
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Abstract
The invention relates to a high polymer modified material of a high cold-resistant UV-resistant intelligent turnover frame for storage and transportation of fresh products, which comprises the following components in percentage by weight: 100 parts by weight of impact-resistant co-polypropylene; 3-8 parts of glass fiber; 0.1-2 parts of antioxidant; 1-5 parts by weight of pigment; 0.1-1 part by weight of lubricant; 5-15 parts of a flame retardant; 0.1-3 parts of an anti-ultraviolet agent; 0.1-1 part of halloysite nanotube cold-resistant agent; the impact-resistant copolymerized polypropylene consists of high-melt-index impact-resistant copolymerized polypropylene and recycled polypropylene, and the mass ratio of the high-melt-index impact-resistant copolymerized polypropylene to the recycled polypropylene is 5-10: 1. The halloysite nanotube cold-resistant agent is adopted, so that the cold resistance under the UV condition can be effectively improved even if the regenerated polypropylene is used. The nucleation auxiliary agent and the modified halloysite are matched in a nanometer mode, particularly after modification, the nucleation auxiliary agent can be gradually released during nucleation, the nucleation environment can be improved, and the cold resistance of the material is improved.
Description
Technical Field
The invention relates to a high polymer modified material of a high cold-resistant UV-resistant intelligent turnover frame for storage and transportation of fresh products.
Background
The fruit and vegetable varieties in China are rich, the production places are widely distributed, the average circulation distance of the standardized fruit and vegetable turnover clamping plates is long, the recovery cost is high, the use cost of the standardized fruit and vegetable turnover clamping plates can be optimized only by realizing a social, networking and large-scale shared leasing service system (providing services such as leasing, withdrawing, maintaining and professional cleaning for the standardized fruit and vegetable turnover baskets), and the circulation sharing proportion of the standardized fruit and vegetable turnover clamping plates is improved.
However, because the standardized fruit and vegetable turnover baskets in China have a wide application range, especially for long-term use in a cold storage and a freezer, the turnover baskets need to have very good mechanical strength under the condition of using reclaimed materials, and also need to have very strong cold resistance and UV resistance.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a high-molecular modified material of a high-cold-resistance UV-resistant intelligent turnover frame for storage and transportation of fresh products, wherein the turnover frame is prepared from the following substances in parts by weight:
100 parts by weight of impact-resistant co-polypropylene;
3-8 parts of glass fiber
0.1 to 2 parts by weight of antioxidant
1-5 parts by weight of pigment
0.1 to 1 weight portion of lubricant
5-15 parts of flame retardant
0.1-3 parts of anti-ultraviolet agent
0.1-1 part of halloysite nanotube cold-resistant agent;
the impact-resistant copolymerized polypropylene consists of high-melt-index impact-resistant copolymerized polypropylene and regenerated modified polypropylene, and the mass ratio of the high-melt-index impact-resistant copolymerized polypropylene to the regenerated polypropylene is 3-5: 1.
As a preferred technical proposal, the high-melt-index impact-resistant copolymerized polypropylene has a melt index of 15-40g/10 min.
As a preferred technical scheme, the melt index of the regenerated polypropylene is 15-40g/10 min.
As a preferred technical scheme, the cold-resistant agent is a mixture of a nucleation auxiliary agent and the halloysite nanotube.
As a preferred technical scheme, the mass ratio of the nucleation auxiliary agent to the halloysite nanotubes is 1: 3-10.
As a preferred technical scheme, the cold-resistant agent is a nucleating agent modified halloysite nanotube.
As a preferable technical scheme, the nucleating auxiliary agent is one or more selected from di (3, 4-dimethylbenzylidene) sorbitol, 2-methylenebis (4, 6-di-tert-butylphenyl) sodium phosphate and 6-naphthalimide compounds.
As a preferred technical scheme, the preparation method of the nucleation assistant modified halloysite nanotube comprises the following steps: adding 100 parts by weight of acetone and 1 part by weight of halloysite nanotube into a three-neck flask, carrying out ultrasonic dispersion for 30min, carrying out vigorous stirring, adding 1-10 parts by weight of nucleation auxiliary agent, carrying out dispersion at normal temperature, filtering, washing with absolute ethyl alcohol, extracting and drying to obtain the modified halloysite nanotube.
As a preferable technical scheme, the ultraviolet resistant agent is selected from one or more of carbon black, iron oxide red, zinc oxide, a benzophenone compound and a benzotriazole compound.
The halloysite nanotube cold-resistant agent is adopted, so that the cold resistance under the UV condition can be effectively improved even if the regenerated polypropylene is used. The nucleation auxiliary agent and the modified halloysite are matched in a nanometer mode, particularly after modification, the nucleation auxiliary agent can be gradually released during nucleation, the nucleation environment can be improved, and the cold resistance of the material is improved.
The above-described and other features, aspects, and advantages of the present application will become more apparent with reference to the following detailed description.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.
And (3) testing conditions are as follows:
injecting turnover frame particles into ｃA standard sample strip through ｃA molding machine, performing injection molding on the turnover frame particles to form the standard sample strip, placing the standard sample strip for at least 24 hours under the conditions that the temperature is 23 +/-2 ℃ and the humidity is RH 50% +/-5%, performing cantilever beam notch impact test (the standard for executing the arm beam notch impact strength is GB/T1843), after the test is completed, placing the standard sample strip for 12 hours at-40 ℃, taking out the standard sample strip, performing ultraviolet irradiation for 12 hours in an ultraviolet box (model: Guanjun GZN-P-A, ultraviolet lamp tube: 8 UVB313 with 40W power), repeating the steps for 10 times, performing the cantilever beam notch impact test on the standard sample strip at normal temperature, and calculating the low-temperature toughness retention rate according to the following formulｃA:
(low temperature impact strength/normal temperature impact strength) × 100%.
Example 1
90 parts by weight of impact-resistant copolymerized polypropylene EP548R (Zhonghai brand); 10 parts by weight of regenerated polypropylene 11280HINC320 (the raw material contains 80% of Jinfa technology 11280HINC320, and other unknown regenerated materials); 4 parts of glass fiber; 0.5 part by weight of antioxidant; 3 parts by weight of a blue pigment; 0.5 part by weight of a lubricant; 10 parts of a flame retardant; 1 part by weight of zinc oxide; and 0.5 part by weight of halloysite nanotube cold-resistant agent is fully mixed and extruded by a screw extruder for granulation. The retention of low temperature toughness calculated using the above test conditions was 43.09%.
Example 2
88 parts by weight of impact-resistant copolymerized polypropylene EP548R (Zhonghai brand); 12 parts by weight of regenerated polypropylene 11280HINC320 (the raw material contains 80 percent of Jinfa technology 11280HINC320 and other unknown regenerated materials); 4 parts of glass fiber; 0.5 part by weight of antioxidant; 3 parts by weight of a blue pigment; 0.5 part by weight of a lubricant; 10 parts of a flame retardant; 1 part by weight of zinc oxide; and 0.6 part by weight of halloysite nanotube cold-resistant agent is fully mixed and extruded by a screw extruder for granulation. The retention rate of the low-temperature toughness calculated by adopting the test conditions is 46.56 percent.
Example 3
88 parts by weight of impact-resistant copolymerized polypropylene EP548R (Zhonghai brand); 12 parts by weight of regenerated polypropylene 11280HINC320 (the raw material contains 80 percent of Jinfa technology 11280HINC320 and other unknown regenerated materials); 4 parts of glass fiber; 0.5 part by weight of antioxidant; 3 parts by weight of a blue pigment; 0.5 part by weight of a lubricant; 10 parts of a flame retardant; 1 part by weight of zinc oxide; the halloysite nanotube cold-resistant agent mixture (0.5 part by weight of halloysite nanotubes and 0.1 part by weight of bis (3, 4-dimethylbenzylidene) sorbitol) was thoroughly mixed 0.6 part by weight, and was extruded by a screw extruder for granulation. The retention of low temperature toughness calculated using the above test conditions was 47.03%.
Example 4
88 parts by weight of impact-resistant copolymerized polypropylene EP548R (Zhonghai brand); 12 parts by weight of regenerated polypropylene 11280HINC320 (the raw material contains 80 percent of Jinfa technology 11280HINC320 and other unknown regenerated materials); 4 parts of glass fiber; 0.5 part by weight of antioxidant; 3 parts by weight of a blue pigment; 0.5 part by weight of a lubricant; 10 parts of a flame retardant; 1 part by weight of zinc oxide; the halloysite nanotube cold-resistant agent mixture (0.48 parts by weight of halloysite nanotubes and 0.12 parts by weight of bis (3, 4-dimethylbenzylidene) sorbitol) was thoroughly mixed 0.6 parts by weight, and was extruded by a screw extruder for granulation. The retention rate of the low-temperature toughness calculated by adopting the test conditions is 48.10 percent.
Example 5
88 parts by weight of impact-resistant copolymerized polypropylene EP548R (Zhonghai brand); 12 parts by weight of regenerated polypropylene 11280HINC320 (the raw material contains 80 percent of Jinfa technology 11280HINC320 and other unknown regenerated materials); 4 parts of glass fiber; 0.5 part by weight of antioxidant; 3 parts by weight of a blue pigment; 0.5 part by weight of a lubricant; 10 parts of a flame retardant; 1 part by weight of zinc oxide; 0.6 part by weight of nucleating additive modified halloysite nanotube is fully mixed and extruded by a screw extruder for granulation. The preparation method of the nucleation assistant modified halloysite nanotube comprises the following steps: adding 100 parts by weight of acetone and 1 part by weight of halloysite nanotube into a three-neck flask, carrying out ultrasonic dispersion for 30min, carrying out vigorous stirring, adding 5 parts by weight of nucleation auxiliary agent, carrying out dispersion at normal temperature, filtering, washing with absolute ethyl alcohol, extracting and drying to obtain the modified halloysite nanotube. The retention of low temperature toughness calculated using the above test conditions was 50.21%.
Comparative example 1
Same as example 2, but without addition of halloysite nanotube coldness-resistance agent. The retention rate of the low-temperature toughness calculated by adopting the test conditions is 35.25 percent.
Comparative example 2
The same as example 2, but all with the impact-resistant co-polypropylene EP 548R. The retention rate of the low-temperature toughness calculated by adopting the test conditions is 37.34 percent.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and the description is given here only for clarity, and those skilled in the art should integrate the description, and the embodiments may be combined appropriately to form other embodiments understood by those skilled in the art.
Claims (9)
1. A high polymer modified material of a high cold-resistant UV-resistant intelligent turnover frame for storage and transportation of fresh products is characterized by comprising:
the impact-resistant copolymerized polypropylene consists of high-melt-index impact-resistant copolymerized polypropylene and recycled polypropylene, and the mass ratio of the high-melt-index impact-resistant copolymerized polypropylene to the recycled polypropylene is 5-10: 1.
2. The polymer modified material of the high cold resistance and UV resistance intelligent revolving frame for storage and transportation of fresh products as claimed in claim 1, wherein the high melt index impact co-polypropylene has a melt index of 15-40g/10 min.
3. The modified polymer material for the high cold resistance and UV resistance intelligent revolving frame for storage and transportation of fresh products as claimed in claim 1, wherein the melt index of the recycled polypropylene is 1-5g/10 min.
4. The polymer modified material of the high cold resistance and UV resistance intelligent revolving frame for storage and transportation of fresh products as claimed in claim 1, wherein the cold resistance agent is a mixture of a nucleation aid and halloysite nanotubes.
5. The high polymer modified material of the high cold resistance and UV resistance intelligent revolving frame for storage and transportation of fresh products as claimed in claim 4, wherein the mass ratio of the nucleation assistant to the halloysite nanotube is 1: 3-10.
6. The polymer modified material of the high cold resistance and UV resistance intelligent revolving frame for storage and transportation of fresh products as claimed in claim 1, wherein the cold resistance agent is a nucleation assistant modified halloysite nanotube.
7. The modified polymer material of the smart revolving frame with high cold resistance and UV resistance for storage and transportation of fresh products as claimed in claim 4, wherein the nucleating agent is one or more selected from bis (3, 4-dimethylbenzylidene) sorbitol, sodium 2, 2-methylenebis (4, 6-di-t-butylphenyl) phosphate, and 6-naphthalene dicarboxamide based compound.
8. The polymer modified material of the high cold resistance and UV resistance intelligent revolving frame for storage and transportation of fresh products as claimed in claim 6, wherein the preparation method of the nucleation assistant modified halloysite nanotube comprises: adding 100 parts by weight of acetone and 1 part by weight of halloysite nanotube into a three-neck flask, carrying out ultrasonic dispersion for 30min, carrying out vigorous stirring, adding 1-10 parts by weight of nucleation auxiliary agent, carrying out dispersion at normal temperature, filtering, washing with absolute ethyl alcohol, extracting and drying to obtain the modified halloysite nanotube.
9. The modified polymer material of the smart revolving frame with high cold resistance and UV resistance for storage and transportation of fresh products as claimed in claim 1, wherein the anti-UV agent is selected from one or more of carbon black, iron oxide red, zinc oxide, benzophenone compound and benzotriazole compound.
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Cited By (3)
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| CN114752127A (en) * | 2022-03-28 | 2022-07-15 | 广东特帅科技股份有限公司 | High-molecular modified material of high-cold-resistance railway sleeper |
| CN117229585A (en) * | 2023-10-24 | 2023-12-15 | 苏州创扬新材料科技股份有限公司 | Polypropylene material for syringe and preparation method thereof |
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| CN117229585A (en) * | 2023-10-24 | 2023-12-15 | 苏州创扬新材料科技股份有限公司 | Polypropylene material for syringe and preparation method thereof |
| CN117229585B (en) * | 2023-10-24 | 2024-04-23 | 苏州创扬新材料科技股份有限公司 | Polypropylene material for syringe and preparation method thereof |
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