Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Highly-antibacterial polypropylene composite material and preparation method thereof

A technology of antibacterial polypropylene and composite materials, applied in the field of high antibacterial polypropylene composite materials and their preparation, and high antibacterial polypropylene composite materials, can solve the problems of difficult generation of active groups, high surface energy of particles, and high cost of silver, and achieve Effects of maintaining photocatalytic activity, improving antibacterial ability, and improving dispersibility

Active Publication Date: 2014-11-26
SHANGHAI PRET COMPOSITES
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method commonly used at present is to dope silver, such as Chinese patent CN2004100419011, although this method can increase the antibacterial activity, but due to the problems of high cost and easy discoloration of silver, its application is limited to a certain extent
In addition, due to nano-TiO 2 The surface energy of the particles is high, and the particles self-assemble to form agglomerates, which are not easy to generate active groups, and cannot exert the proper antibacterial performance, thus affecting the antibacterial performance of the composite material

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Highly-antibacterial polypropylene composite material and preparation method thereof
  • Highly-antibacterial polypropylene composite material and preparation method thereof
  • Highly-antibacterial polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Below in conjunction with embodiment, the present invention is described in further detail:

[0028] In the composite material formulations of Examples and Comparative Examples, polypropylene is a copolymerized polypropylene with a melt flow rate of 28 g / 10 min (test conditions: 230° C.×2.16 kg) produced by Shanghai Petrochemical Company, and its trade name is M2600R. Nano-TiO 2 The particles are anatase titanium dioxide, the particle size is ≤5nm, and the specific surface area is more than 200m 2 / g. doped nano TiO 2 Particles: Nano TiO by ball milling 2 The particles are obtained by doping 5% nanometer zinc oxide (ZnO, produced by Shanghai Chemical Co., Ltd.). Modified Nano TiO 2 Particles: Nano-TiO will be doped 2 The particles are prepared by modifying with silane coupling agent (KH550, commercially available). As other inorganic fillers, talcum powder with a particle size of 5 microns is selected. The elastomer is a linear ethylene-octene copolymer produced...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
melt flow indexaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a highly-antibacterial polypropylene composite material and a preparation method thereof. The preparation method comprises the steps that doped nano TiO2 particles are firstly obtained through doping nano TiO2 particles; then modified nano TiO2 particles are obtained by coupling and modifying the doped nano TiO2 particles; and furthermore, the modified nano TiO2 particles and polypropylene are melted and extruded, and then the highly-antibacterial polypropylene composite material is manufactured. The highly-antibacterial polypropylene composite material comprises following raw materials by weight percentage: 63 to 97 percent of polypropylene, 1 to 5 percent of modified nano TiO2 particles, 0 to 20 percent of other inorganic filler, 0 to 10 percent of elastomer, 0.2 to 1 percent of dispersants, 0.1 to 1 percent of antioxidants and 0 to 3 percent of other additives. The preparation method has the advantages that on the basis that the original performance of a polypropylene material is guaranteed, the polypropylene composite material is endowed with excellent antibacterial activity, so that the polypropylene composite material can be excited by weak ultraviolet light in sunlight or lighting lamp light to produce a photocatalysis effect and develop a very strong bacteriostatic ability over Escherichia coli and staphylococcus aureus.

Description

technical field [0001] The present invention relates to a kind of high antibacterial polypropylene composite material and preparation method thereof, more specifically is through nano-TiO 2 Particles are subjected to doping treatment and coupling modification treatment to obtain modified nano-TiO 2 The particle is melted and extruded with polypropylene to prepare a high antibacterial polypropylene composite material, which belongs to the field of polymer modification and processing. Background technique [0002] Plastic plays an increasingly important role in people's daily life. As a non-toxic plastic, polypropylene is widely used in various places, such as household appliances, automotive interior and exterior trim, fitness equipment, office supplies, daily necessities, toys and sanitary ware, due to its low density, low price and good processing performance and other fields. As people's awareness of health and environmental protection increases, they gradually realize ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/14C08K9/04C08K9/06C08K3/22B29C47/92B29C48/92
CPCB29C47/92B29C48/92B29C48/875B29C2948/92514B29C2948/92561B29C2948/92704B29C2948/92895
Inventor 陈通华张鹰张祥福周文
Owner SHANGHAI PRET COMPOSITES
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products