CN112662056B - Antibacterial and antiviral polypropylene plastic and application thereof - Google Patents
Antibacterial and antiviral polypropylene plastic and application thereof Download PDFInfo
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Abstract
The invention discloses an antibacterial and antiviral polypropylene plastic which comprises a component A and a component B, and is characterized in that the component A comprises the following components in percentage by mass: 100 percent of polypropylene, 0.05 to 0.5 percent of high molecular weight hindered polyphenol antioxidant, 0.1 to 1.5 percent of amino silane coupling agent and 0.01 to 0.5 percent of ultraviolet absorbent; the antibacterial component B is a silver-zinc composite antibacterial agent of zirconium phosphate load-exchanged silver ions and zinc oxide, and the mass fraction of the antibacterial component B is 0.8-4% of that of the antibacterial component A. The antibacterial and antiviral polypropylene plastic is obtained through the synergistic effect of the high molecular weight hindered polyphenol antioxidant, the aminosilane coupling agent and the silver-zinc composite antibacterial agent of zirconium phosphate load exchange silver ions and zinc oxide, and has excellent physical properties.
Description
Technical Field
The invention relates to the field of high polymer materials, in particular to an antibacterial and antiviral polypropylene plastic and application thereof.
Background
With the development and progress of society and the increasing living standard of substances, people have higher requirements on living and working environments, especially sanitary environments, and especially after the novel coronavirus and SARS virus, the demands of people on antibacterial and antiviral products are increasing. The polypropylene is a thermoplastic synthetic resin with excellent performance, and is applied to the aspects of life, and the development and application of the antibacterial agent provide another way for improving the performance of the polypropylene. The antimicrobial agents used in the majority include zinc oxide, silver based antimicrobial agents, titanium dioxide and combinations thereof. For example: food packaging boxes, food packaging bags, mineral water bottles, medical protective clothing, feeding bottles and nipples, whether or not these items have antibacterial and antiviral properties, are closely related to the health of people.
The addition of the antibacterial agent can cause problems of compatibility and agglomeration, thus influencing the antibacterial effect, meanwhile, the addition of the antibacterial agent as a functional assistant into a polymer matrix can also influence the physical properties of the polymer, in addition, the addition of the antibacterial agent can also influence the function of an antioxidant, and furthermore, the selection of a coupling agent can also influence the antibacterial effect and the compatibility of the antibacterial agent.
There is a need for an antibacterial and antiviral polypropylene plastic, which improves physical properties and antibacterial properties of the resulting polypropylene plastic through synergistic effects between additives.
Disclosure of Invention
The invention mainly aims to provide an antibacterial and antiviral polypropylene plastic so as to solve the defects in the technical background.
In order to achieve the purpose, the invention provides an antibacterial and antiviral polypropylene plastic which comprises a component A and an antibacterial component B, and is characterized in that the component A comprises the following components in parts by mass: 100 parts of polypropylene, 0.05-0.5 part of high molecular weight hindered polyphenol antioxidant, 0.1-1.5 parts of aminosilane coupling agent and 0.01-0.5 part of ultraviolet absorbent; the antibacterial component B is a silver-zinc composite antibacterial agent of zirconium phosphate load exchange silver ions and zinc oxide, and the mass part of the antibacterial component B is 0.8-4% of that of the antibacterial component A.
Preferably, the high molecular weight hindered polyphenolic antioxidant comprises one or a combination of both of antioxidant 1010 and antioxidant 330.
Preferably, the aminosilane coupling agent comprises one or a combination of five of KH550, KH902, KH540, KH792 and KH 602.
Preferably, the UV absorber comprises one or a combination of RQT-X-1 and UV-P.
Preferably, the component A further comprises 0.5-1 part by mass of a lubricant, the lubricant is stearate, and the stearate comprises one or a combination of four of zinc stearate, calcium stearate, barium stearate and magnesium stearate.
Preferably, the component A further comprises 5-20 parts by mass of a toughening agent, and the toughening agent comprises one or a combination of three of linear low-density polyethylene, high-density polyethylene and ethylene propylene diene monomer.
Preferably, the component A also comprises 0.5-2 parts of titanium dioxide and 8-30 parts of talcum powder in parts by mass.
Preferably, the component A also comprises white mineral oil with the mass portion of 0.1-0.2.
The invention also discloses application of the antibacterial and antiviral polypropylene plastic, wherein the antibacterial and antiviral polypropylene plastic contains the components in the antibacterial and antiviral polypropylene plastic.
The invention has the beneficial effects that: the antibacterial and antiviral polypropylene plastic is obtained through the synergistic effect of the high molecular weight hindered polyphenol antioxidant, the aminosilane coupling agent and the silver-zinc composite antibacterial agent of zirconium phosphate load exchange silver ions and zinc oxide, has excellent physical properties, and can be applied to food packaging boxes, food packaging bags, mineral water bottles, medical protective clothing, feeding bottles and nipples to achieve antibacterial and antiviral effects.
Detailed Description
The present invention is further illustrated by the following specific examples, but it should be noted that the specific material ratios, process conditions, results, etc. described in the examples of the present invention are only for illustrating the present invention and are not to be construed as limiting the scope of the present invention, and all equivalent changes and modifications according to the spirit of the present invention should be covered by the scope of the present invention.
Example 1:
the antibacterial and antiviral polypropylene plastic comprises a component A and an antibacterial component B, wherein the component A comprises the following components in parts by mass: 100 parts of polypropylene, 0.3 part of high molecular weight hindered polyphenol antioxidant, 1.5 parts of aminosilane coupling agent and 0.3 part of ultraviolet absorbent; the antibacterial component B is a silver-zinc composite antibacterial agent of zirconium phosphate load-exchanged silver ions and zinc oxide, and the mass part of the antibacterial component B is 2.5% of that of the antibacterial component A; in this example, the high molecular weight hindered polyphenol antioxidant is antioxidant 330, the aminosilane coupling agent is KH550, and the ultraviolet absorber is RQT-X-1.
Example 2:
the antibacterial and antiviral polypropylene plastic comprises a component A and an antibacterial component B, wherein the component A comprises the following components in parts by mass: 100 parts of polypropylene, 30 parts of talcum powder, 0.5 part of high molecular weight hindered polyphenol antioxidant, 0.2 part of white mineral oil, 0.1 part of aminosilane coupling agent, 0.5 part of titanium dioxide, 0.02 part of ultraviolet absorbent, 0.5 part of lubricant and 5 parts of toughening agent; the antibacterial component B is a silver-zinc composite antibacterial agent of zirconium phosphate loaded exchange silver ions and zinc oxide, the mass part of the antibacterial component B is 4% of that of the component A, in the embodiment, the high molecular weight hindered polyphenol antioxidant is an antioxidant 1010, the aminosilane coupling agent is KH602, the ultraviolet absorbent is UV-P, the lubricant is zinc stearate, and the toughening agent is ethylene propylene diene monomer.
Example 3:
the antibacterial and antiviral polypropylene plastic comprises a component A and an antibacterial component B, wherein the component A comprises the following components in parts by mass: 100 parts of polypropylene, 8 parts of talcum powder, 0.1 part of high molecular weight hindered polyphenol antioxidant, 0.1 part of white mineral oil, 0.8 part of aminosilane coupling agent, 2 parts of titanium dioxide, 0.1 part of ultraviolet absorbent, 1 part of lubricant and 20 parts of toughening agent; the antibacterial component B is a silver-zinc composite antibacterial agent of zirconium phosphate loaded exchange silver ions and zinc oxide, the mass part of the antibacterial component B is 0.8% of that of the component A, in the embodiment, the high molecular weight hindered polyphenol antioxidant is antioxidant 330, the aminosilane coupling agent is KH540, the ultraviolet absorbent is RQT-X-1, the lubricant is calcium stearate, and the toughening agent is linear low-density polyethylene.
Comparative example 1 (comparison with example 1):
the antibacterial and antiviral polypropylene plastic comprises a component A and an antibacterial component B, wherein the component A comprises the following components in parts by mass: 100 parts of polypropylene, 0.3 part of antioxidant 1076, 1.5 parts of KH560 and 0.3 part of RQT-X-1; the antibacterial component B is a silver-zinc composite antibacterial agent of zirconium phosphate load-exchanged silver ions and zinc oxide, and the mass part of the antibacterial component B is 2.5% of that of the antibacterial component A.
Comparative example 2 (comparison with example 3):
the antibacterial and antiviral polypropylene plastic comprises a component A and an antibacterial component B, wherein the component A comprises the following components in parts by mass: 100 parts of polypropylene, 8 parts of talcum powder, 0.1 part of antioxidant 264, 0.1 part of white mineral oil, 0.8 part of KH570, 2 parts of titanium dioxide, 0.1 part of RQT-X-1, 1 part of calcium stearate and 20 parts of linear low-density polyethylene; the antibacterial component B is a silver-zinc composite antibacterial agent of zirconium phosphate load-exchanged silver ions and zinc oxide, and the mass part of the antibacterial component B is 0.8% of that of the antibacterial component A.
The physical properties and antibacterial and antiviral properties of the above examples and comparative examples were tested by the following methods.
(1) And (3) testing physical properties:
and (3) testing tensile strength: GB/T1040-;
elongation at break test: GB/T2567-1997;
and (3) testing the elastic modulus: GB/T14694 + 1993.
(2) Antibacterial and antiviral tests:
antibacterial test methods: ISO 22196-2007;
the antiviral test method comprises the following steps: ISO 21702-.
And (3) testing results:
| item | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 |
| Tensile strength (Mpa) | 29.9 | 33 | 31 | 27.8 | 27.9 |
| Elongation at break (in parts) | 19.3 | 23 | 26 | 17.2 | 18 |
| Modulus of elasticity (Gpa) | 1.7 | 1.8 | 1.6 | 1.4 | 1.4 |
| Minimum concentration (mg/kg) to inhibit Staphylococcus aureus | 37 | 36 | 38 | 62 | 58 |
| Anti-golden yellow grapeActivity ratio of Staphylococcus aureus | 99 portions of | 99.2 parts of | 98.4 portions | 90 portions of | 92 portions of |
| Minimum concentration for inhibiting influenza A virus H1N1(A/PR/8/34) MDCK cells | 316 | 300 | 320 | 401 | 400 |
| Activity rate of MDCK cells against influenza A virus H1N1(A/PR/8/34) | 94 parts of | 95 parts of | 93.6 parts | 80 portions | 82 portions of |
From the above experimental results, it can be seen that: the silver-zinc composite antibacterial agent of zirconium phosphate load exchange silver ions and zinc oxide is added into a polypropylene substrate in a matching way with a conventional antioxidant and a silane coupling agent to obtain the antibacterial and antiviral polypropylene plastic, but the obtained antibacterial and antiviral effect is poor.
The application can realize the two-way promotion of antibacterial, antiviral and physical properties, mainly because the compatibility of high molecular weight hindered polyphenol antioxidant and polypropylene is very good, when the silver-zinc composite antibacterial agent is collocated when the high molecular weight hindered polyphenol antioxidant and aminosilane coupling agent are used, because the polyhydroxy of the high molecular weight hindered polyphenol antioxidant exists, the high molecular weight hindered polyphenol antioxidant and a zirconium phosphate matrix in the silver-zinc composite antibacterial agent have stronger intermolecular hydrogen bond effect, in addition, the high molecular weight hindered polyphenol antioxidant has larger distance between phenolic hydroxyl groups due to the existence of steric groups, the silver-zinc composite antibacterial agent can be uniformly dispersed in the polypropylene matrix by the acting force of the intermolecular hydrogen bond, the influence of the aggregation of the silver-zinc composite antibacterial agent on the physical properties of polypropylene plastics is reduced, the migration rate of the silver-zinc composite antibacterial agent to the surface of the polypropylene plastic can be adjusted, the antibacterial timeliness and antibacterial activity are adjusted, in addition, the acting force of intermolecular hydrogen bonds can also improve the hydrogen supply capacity of the high molecular weight hindered polyphenol antioxidant, so that the antioxidant capacity is improved, in addition, the silver-zinc composite antibacterial agent and the high molecular weight hindered polyphenol antioxidant can become out-of-phase crystal nuclei of the polypropylene matrix through the acting force of the hydrogen bonds, the crystal perfection of the polypropylene plastic is improved, and the elastic modulus of the antibacterial and antiviral polypropylene plastic can be improved.
The amino silane coupling agent can adjust the compatibility of the silver-zinc composite antibacterial agent and the polypropylene matrix, and can also be complexed with free silver ions to play a role in stabilizing the silver ions, so that the antibacterial life of the antibacterial and antiviral polypropylene plastic is prolonged.
The talcum powder and the titanium dioxide are mainly added to adjust the tensile strength, the elongation at break and the elastic modulus of the plastic, in addition, the linear low-density polyethylene and the ethylene propylene diene monomer rubber which are used as the flexibilizers are mainly added to improve the toughness of the antibacterial and antiviral polypropylene and improve the impact resistance of the antibacterial and antiviral polypropylene, the addition of the white mineral oil increases the adsorption force of the antibacterial and antiviral polypropylene on bacteria and viruses, and can also serve as a partial lubricant, and the addition of the calcium stearate and the zinc stearate which are used as the lubricants is mainly used for improving the operability of processing and improving the plane smoothness of the antibacterial and antiviral polypropylene plastic.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the present specification and directly/indirectly applied to other related technical fields within the spirit of the present invention are included in the scope of the present invention.
Claims (7)
1. The antibacterial and antiviral polypropylene plastic comprises a component A and a component B, and is characterized in that the component A comprises the following components in parts by mass: 100 parts of polypropylene, 0.05-0.5 part of high molecular weight hindered polyphenol antioxidant, 0.1-1.5 parts of aminosilane coupling agent and 0.01-0.5 part of ultraviolet absorbent; the antibacterial component B is a silver-zinc composite antibacterial agent of zirconium phosphate load exchange silver ions and zinc oxide, and the mass part of the antibacterial component B is 0.8-4% of that of the antibacterial component A;
the high molecular weight hindered polyphenol antioxidant comprises one or the combination of antioxidant 1010 and antioxidant 330;
the aminosilane coupling agent comprises one or a combination of five of KH550, KH902, KH540, KH792 and KH 602.
2. The antibacterial and antiviral polypropylene plastic as claimed in claim 1, wherein the ultraviolet absorber comprises RQT-X-1 and UV-P, or a combination of the two.
3. The antibacterial and antiviral polypropylene plastic as claimed in claim 1, wherein the component A further comprises 0.5-1 part by mass of a lubricant, the lubricant is a stearate, and the stearate comprises one or a combination of four of zinc stearate, calcium stearate, barium stearate and magnesium stearate.
4. The antibacterial and antiviral polypropylene plastic as claimed in claim 1, wherein the component A further comprises 5-20 parts by mass of a toughening agent, and the toughening agent comprises one or a combination of three of linear low density polyethylene, high density polyethylene and ethylene propylene diene monomer.
5. The antibacterial and antiviral polypropylene plastic as claimed in claim 1, wherein the component A further comprises 0.5-2 parts by mass of titanium dioxide and 8-30 parts by mass of talc.
6. The antibacterial and antiviral polypropylene plastic as claimed in claim 1, wherein the component A further comprises white mineral oil in an amount of 0.1-0.2 parts by mass.
7. Use of the antibacterial and antiviral polypropylene plastic as claimed in any one of claims 1 to 6.
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| CN115975285A (en) * | 2022-07-13 | 2023-04-18 | 中核(苏州)检测技术有限公司 | Preparation method and application of antibacterial PP material |
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| CN113558067A (en) * | 2021-07-22 | 2021-10-29 | 擎天材料科技有限公司 | Antibacterial agent, antibacterial powder coating and preparation method and application thereof |
| CN114479268A (en) * | 2021-12-27 | 2022-05-13 | 苏州市和好塑业有限公司 | Preparation method of lunch box added with antibacterial masterbatch |
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| CN108424576A (en) * | 2018-03-12 | 2018-08-21 | 广东技塑新材料股份有限公司 | A kind of nontoxic polypropylene material of permanent antibacterial and mouldproof and preparation method thereof |
| CN111978635A (en) * | 2020-08-17 | 2020-11-24 | 成都金发科技新材料有限公司 | Antibacterial and antiviral polypropylene material for automobile air conditioner shell and preparation method thereof |
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| CN108424576A (en) * | 2018-03-12 | 2018-08-21 | 广东技塑新材料股份有限公司 | A kind of nontoxic polypropylene material of permanent antibacterial and mouldproof and preparation method thereof |
| CN111978635A (en) * | 2020-08-17 | 2020-11-24 | 成都金发科技新材料有限公司 | Antibacterial and antiviral polypropylene material for automobile air conditioner shell and preparation method thereof |
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| CN115975285A (en) * | 2022-07-13 | 2023-04-18 | 中核(苏州)检测技术有限公司 | Preparation method and application of antibacterial PP material |
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