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A kind of antibacterial polystyrene modified material and preparation method thereof

A polystyrene, modified material technology, applied in metal material coating process, ion implantation plating, coating and other directions, can solve difficult problems, ensure effective utilization, prevent crystal nucleation, and enhance toughness and impact resistance

Inactive Publication Date: 2015-07-29
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the huge surface energy of nano-powders, there is a strong "cohesion" in them. At the same time, the compatibility of inorganic nano-powders with different types of organic polymer materials is also a problem. To achieve inorganic powders Nanoscale dispersion in polymers is extremely difficult, and it is difficult to disperse inorganic powders into polymer materials at the nanometer level

Method used

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  • A kind of antibacterial polystyrene modified material and preparation method thereof
  • A kind of antibacterial polystyrene modified material and preparation method thereof
  • A kind of antibacterial polystyrene modified material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Using high-speed pre-mixing and dispersing one-time extrusion process, 76 parts of polystyrene, 1 part of nano-titanium dioxide particles, 2 parts of nano-silver particles, 6 parts of ethylene-propylene rubber as a dispersion modifier, and two parts of styrene-butyl acrylate 10 parts of graft-modified ethylene-propylene rubber, 5 parts of nano-apatite whiskers, 0.01 parts of antioxidant, and 5 parts of processing aids are dispersed and mixed by a high-speed mixer; melted, mixed and extruded by a twin-screw extruder Take out, cool, dry and cut into pellets.

[0028] The above-mentioned granules are injection-molded into plates by an injection molding machine, placed overnight under natural conditions, and then the plates are placed in an oxygen-containing gas atmosphere, and pure titanium is used as a target material, and the plasma sputtering process is performed using an existing plasma coating machine , in the plasma sputtering process, the radio frequency power is 30...

Embodiment 2

[0031] The high-speed premixing and dispersing extrusion process of Example 1 is used to granulate. The parts by weight of each component are: 80 parts of polystyrene, 0.5 part of nano-titanium dioxide particles, 1 part of nano-silver particles, and 3 parts of α-olefin oligomers. 6 parts, 6 parts of styrene-butyl acrylate binary graft modified ethylene-propylene rubber, 3 parts of nano-apatite whiskers, 0.1 part of antioxidant, and 0.1 part of processing aid.

[0032] The above-mentioned pellets are blown into containers by a blow molding machine, placed overnight under natural conditions, and then the container is placed in an oxygen-containing gas atmosphere, pure titanium is used as a target, and plasma sputtering is performed using an existing plasma coating machine In the plasma sputtering process, the radio frequency power is 50w, the bias voltage is 60V, and the sputtering time is 4 minutes.

[0033] After sputtering, the thickness of the titanium dioxide film on the su...

Embodiment 3

[0035]The high-speed premixing and dispersing primary extrusion process of Example 1 is used to granulate, and the parts by weight of each component are: 83 parts of polystyrene, 0.8 part of nano-titanium dioxide particles, 1.5 parts of nano-silver particles, and 5 parts of α-olefin oligomers. 8 parts, 8 parts of styrene-butyl acrylate binary graft modified ethylene-propylene rubber, 5 parts of nano-apatite whiskers, 1 part of antioxidant, and 3 parts of processing aid.

[0036] The above-mentioned pellets are injection-molded into pipes by injection molding machine, placed overnight under natural conditions, and then the pipes are placed in an oxygen-containing gas atmosphere, pure titanium is used as the target material, and the plasma sputtering process is performed using an existing plasma coating machine , in the plasma sputtering process, the radio frequency power is 100w, the bias voltage is 80V, and the sputtering time is 8 minutes.

[0037] After sputtering, the thick...

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Abstract

The invention provides an antibacterial polystyrene modified material and a preparation method thereof. The polystyrene material comprises polystyrene, nanometer titanium dioxide particles, nanometer silver particles, a dispersing modified agent, a styrene butyl acrylate binary grafting modified ethylene-propylene rubber, nano hydroxyapatite whisker, an antioxidant and a processing aid; and after forming, the surface of the material is provided with a nanometer titanium dioxide film formed by a plasma sputtering process. The polystyrene modified material provided by the invention has good mechanical properties and continuous antibacterial effect, and can prevent the agglomeration of the nanometer material and effectively improve the light stability.

Description

technical field [0001] The invention relates to a polystyrene modified material, in particular to an antibacterial polystyrene modified material and a preparation method thereof. Background technique [0002] Polystyrene is a non-toxic, odorless, colorless transparent particle, a glass-like brittle material, and one of the most widely used synthetic resins today. This traditional polystyrene product has extremely high transparency, the light transmittance can reach more than 90%, good electrical insulation performance, easy coloring, good processing fluidity, good rigidity, good chemical corrosion resistance, and low price. , but this traditional polystyrene has many shortcomings, such as brittleness, low impact strength, and prone to stress cracking, which greatly limit the application range of polystyrene. At present, in order to solve the shortcomings of traditional polystyrene, it is mainly improved by blending it with rubber or copolymerizing it with other resins. Alt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L51/00C08L51/06C08K13/04C08K3/22C08K3/08C08K7/04C08K3/32C23C14/08C23C14/34
Inventor 叶丹滢袁绍彦刘奇祥吴博石鑫
Owner KINGFA SCI & TECH CO LTD
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