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Permanent antimicrobial, mildewproof poisonless and harmless polystyrene material and preparation method thereof

A polystyrene, antibacterial and antifungal technology, applied in the field of materials, can solve the problems that the antibacterial agent is difficult to fix, lose the antibacterial effect, and the material cost is high, and achieve the effects of improving the impact performance, improving the finish and improving the processing performance.

Inactive Publication Date: 2018-07-27
DONGGUAN JISU PLASTIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent uses nano-titanium dioxide particles and nano-silver particles as antibacterial agents, and the dispersion modifier is oligomers of ethylene and propylene, or oligomers of their composition; and after the material is formed, it is sprayed on its surface by plasma sputtering The process forms a nano-titanium dioxide film layer, and the antibacterial efficiency of the material reaches 99.9%, but the antibacterial agent is difficult to fix, and the material cost is too high, the process is complicated, and it is not suitable for large-scale production. At the same time, the film coated on the surface of the material must be protected to prevent scratches. Wipe, so as not to be destroyed, lose the antibacterial effect, and the antibacterial agent exists to migrate

Method used

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  • Permanent antimicrobial, mildewproof poisonless and harmless polystyrene material and preparation method thereof
  • Permanent antimicrobial, mildewproof poisonless and harmless polystyrene material and preparation method thereof
  • Permanent antimicrobial, mildewproof poisonless and harmless polystyrene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) In terms of parts by mass, first mix 0.21 parts of zeolite silver ion antibacterial agent (IM10D-L) and 0.12 parts of air purification material based on titanium dioxide photocatalyst (from Chinese invention patent example 1, patent number is 201610066352.6) Dry at 90°C for 2 hours, then put the dried two materials into a high-speed mixer, add 0.18 parts by weight of new active silicone powder (RM4-7081), and control the temperature at 100°C. After 30 minutes, material A was obtained.

[0037] (2 in parts by mass,) 98.95 parts of extrusion-grade polystyrene, 0.24 parts of antioxidant (1076:168=0.12:0.12), 0.3 parts of anti-ultraviolet additive UV-P were added to the high-speed mixer, and a total of Mix for 5 minutes and stir well to obtain material B.

[0038] (3) Add material B from the main feeding port of the twin-screw extruder, add material A from the side feeding port of the twin-screw extruder, and pass through the temperature of 150-230°C in the twin-screw ...

Embodiment 2

[0040] (1) In terms of parts by mass, first mix 0.24 parts of zeolite silver ion antibacterial agent (IM10D-L) and 0.145 parts of air purification material based on titanium dioxide photocatalyst (from Chinese invention patent example 1, patent number is 201610066352.6) Dry at 90°C for 2 hours, then put the dried two materials into a high-speed mixer, add 0.2 parts by weight of new active silicone powder (RM4-7081), and control the temperature at 100°C. After 30 minutes, material A was obtained.

[0041] (2) In terms of parts by mass, add 98.87 parts of general-purpose polystyrene, 0.24 parts of antioxidant (1076:168=0.12:0.12), and 0.3 parts of anti-ultraviolet additive UV5411 into the high-speed mixer, and blend for 5 minutes , and stir evenly to obtain material B.

[0042] (3) Add material B from the main feeding port of the twin-screw extruder, add material A from the side feeding port of the twin-screw extruder, and pass through the temperature of 150-230°C in the twin-s...

Embodiment 3

[0044] (1) In terms of parts by mass, first mix 0.195 parts of zeolite silver ion antibacterial agent (IM10D-L) and 0.1 part of air purification material based on titanium dioxide photocatalyst (from Chinese invention patent example 1, patent number is 201610066352.6) Dry at 90°C for 2 hours for later use, then put the dried two substances into a high-speed mixer, add 0.17 parts by weight of new active silicone powder (RM4-7081), and control the temperature at 100°C. After processing for 30 minutes, material A was obtained.

[0045] (2) In terms of parts by mass, add 99 parts of general-purpose polystyrene, 0.24 parts of antioxidant (mass ratio of antioxidant 1076 to antioxidant 168=0.12:0.12), and 0.3 parts of anti-ultraviolet additive UV5411 In a high-speed mixer, blend for 5 minutes and stir evenly to obtain material B.

[0046] (3) Add material B from the main feeding port of the twin-screw extruder, add material A from the side feeding port of the twin-screw extruder, an...

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PUM

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Abstract

The invention discloses a permanent antimicrobial, mildewproof poisonless and harmless polystyrene material and a preparation method thereof. The polystyrene material is prepared from polystyrene, zeolite silver ion antibacterial agents, air purification materials using titanium dioxide photocatalysis as substrates, antioxidants, anti-UV aids and dispersants through mixing; the dispersant is Dow Corning active siloxane powder with the model being RM4-7081. The novel active siloxane powder is used as a dispersant, so that the antimicrobial power can be easily enriched at the carrier surface; the antimicrobial powder is firmly controlled in carrier resin and cannot migrate; the long-period biological safety stability is maintained; the contact area of an antibacterial agent and microorganisms is greatly enhanced, so that the antimicrobial deodorization efficiency of the antibacterial agent and the permanency in the carrier resin are further enhanced. The material has higher antimicrobialefficiency, better processability, better mechanical property and surface finish degree, and really achieves the poisonless and harmless effects.

Description

technical field [0001] The invention relates to a polystyrene material, in particular to a permanent antibacterial, anti-mildew, non-toxic and harmless polystyrene material and a preparation method thereof; it belongs to the field of material technology. Background technique [0002] With the development of society and the continuous improvement of human living standards, people pay more and more attention to a healthy living environment and convenient living conditions. Since exposure to a large number of bacteria in daily work and life will directly threaten people's health, the development of new, efficient, non-toxic and side-effect-free antibacterial materials with excellent durability has received widespread attention and popularity. As a commonly used general-purpose plastic, polystyrene has the characteristics of hard and smooth surface, good transparency, strong coloring power, and easy processing. Therefore, it has been widely used in household appliances, medical ...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08K13/06C08K9/12C08K3/22C08K3/34C08K3/38C08K5/1535C08K5/54
CPCC08K13/06C08K3/22C08K3/34C08K3/38C08K5/1535C08K5/54C08K9/12C08K2003/2241C08K2201/011C08L25/06
Inventor 汪品洋
Owner DONGGUAN JISU PLASTIC TECH