Flame-retardant anti-bacteria polypropylene composite material and preparation method thereof

A technology of antibacterial polypropylene and composite materials, which is applied in the field of flame-retardant antibacterial polypropylene composite materials for small household appliances and its preparation, can solve the problems of poor performance, large specific gravity, and large amount of flame retardants, and achieve excellent performance, Cost-effective, the effect of reducing production costs

Inactive Publication Date: 2012-03-21
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the flame retardant PP is mainly based on halogen flame retardant, and bromine / antimony / talcum powder flame retardant system is mostly used. When this type of system burns, it forms a lot of black smoke and contains more or less toxic gases, as well as high density and high cost. and other shortcomings
Ordinary halogen-free flame-retardant PP generally needs to add 25-30% flame retardant to achieve the V0 flame-retardant effect. The large amount of flame retardant added can easily affect the physical and mechanical properties of the material, and the performance is poor. Disadvantages such as large proportion

Method used

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  • Flame-retardant anti-bacteria polypropylene composite material and preparation method thereof
  • Flame-retardant anti-bacteria polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Mixing by weight ratio, PP 86.7%; LLDPE 6.0%; white oil 0.1%; flame retardant 6.0%; antibacterial agent 0.2%; dispersant 0.5%; lubricant 0.4%; antioxidant 0.1%. The mixed material is put into the hopper of the twin-screw extruder, melted and blended, extruded and granulated to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 140°C; zone 2: 140°C; zone 3: 150°C; zone 4: 160°C; head: 180°C; residence time 3-4min. The pressure is 15MPa.

Embodiment 2

[0032] Mixing by weight, PP 83.3%; LLDPE 8.0%; white oil 0.1%; flame retardant 7.0%; antibacterial agent 0.3%; dispersant 0.6%; lubricant 0.5%; antioxidant 0.2%. The mixed material is put into the hopper of the twin-screw extruder, melted and blended, extruded and granulated to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 140°C; zone 2: 150°C; zone 3: 150°C; zone 4: 160°C; head: 170°C; residence time 3-4min. The pressure is 15MPa.

Embodiment 3

[0034] Mix according to weight ratio, PP 80.9%; LLDPE 9.0%; white oil 0.2%; flame retardant 8.0%; antibacterial agent 0.4%; dispersant 0.7%; lubricant 0.6%; antioxidant 0.2%. The mixed material is put into the hopper of the twin-screw extruder, melted and blended, extruded and granulated to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 150°C; zone 2: 150°C; zone 3: 160°C; zone 4: 160°C; head: 180°C; residence time 3-4min. The pressure is 15MPa.

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Abstract

The invention discloses a flame-retardant anti-bacteria polypropylene composite material and a preparation method thereof. The flame-retardant anti-bacteria polypropylene composite material is prepared by the following raw materials according to the weight percentage: 78.6% to 86.7% of polypropylene, 6.0% to 10.0% of linear low-density polyethylene, 0.1% to 0.2% of white oil, 6.0% to 9.0% of fire retardant, 0.2% to 0.5% of anti-bacterial agent, 0.5% to 0.8% of dispersant, 0.4% to 0.7% of lubricant, and 0.1% to 0.2% of oxidation inhibitor. The raw materials are weighed according to the above weight percentages so as to be mixed uniformly, melted and extruded by a double-screw extruder and pelleted. The preparation method is simple in technology, low in cost and high in cost performance, and has fire retardant property and anti-bacterial performance, and the prepared material is excellent in combination property.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a flame-retardant and antibacterial polypropylene composite material for small home appliance shells and a preparation method thereof. Background technique [0002] Polypropylene is one of the five general-purpose plastics. It has the characteristics of low production cost, good comprehensive mechanical properties, non-toxic, light weight, corrosion resistance, easy processing and recycling, so it is widely used in production and living fields, but it is flammable material, there are potential safety hazards, so it is necessary to endow it with flame retardant properties. At present, many small home appliance casing materials are successively made of V0 flame-retardant PP. Most of the flame retardant PP is mainly based on halogen flame retardant, and bromine / antimony / talcum powder flame retardant system is mostly used. When this type of system burns, it forms a lot of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/08C08K13/02C08K3/08B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/875B29C48/92B29C2948/92514B29C2948/92704B29C2948/92895B29C2948/92904
Inventor 徐东徐永杨秋会
Owner SHENZHEN KEJU NEW MATERIAL
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