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Electricity-conducting and antibacterial polyamide 6/ polypropylene composite material and preparation method thereof

An antibacterial polyamide and composite material technology is applied in the field of plastic modification to achieve the effects of broadening the application range, improving thermal conductivity and electrical conductivity, and simple preparation process and process

Inactive Publication Date: 2014-10-15
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 2. Since polypropylene and polyamide 6 have no antibacterial effect, they are used in daily necessities, medical treatment and other products that have specific requirements for antibacterial effect The technical field has certain limitations
Applying it to plastics is mainly used to improve the wear resistance, electrical conductivity and thermal conductivity of plastics. Due to its easy reunion, the effect has not been significant in recent years.

Method used

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  • Electricity-conducting and antibacterial polyamide 6/ polypropylene composite material and preparation method thereof
  • Electricity-conducting and antibacterial polyamide 6/ polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] (1) Preparation of modified graphene powder:

[0064] Place the raw graphene A in an oven at 140°C for 8 hours, and then mix the dried graphene micropowder with the acid solution made by mixing concentrated sulfuric acid and concentrated nitric acid in a volume ratio of 3:5 in a mass ratio of 1:6.5 Mix, then heat and reflux under stirring, the heating temperature is 160°C, and the treatment time is 28 hours. After taking out the treated product, wash it repeatedly with distilled water until it is neutral, and then put it in a 140°C oven to dry for 16 hours.

[0065] The above-mentioned dried graphene and coupling agent-absolute ethanol solution were mixed evenly according to the mass ratio of 1:6, and the obtained slurry was put into a ball mill with a rotation speed of 450 rpm for 3.5 hours, and finally placed in a vacuum of 140 Dry in an oven at ℃ for 16 hours to obtain modified graphene micropowder;

[0066] The coupling agent-absolute ethanol solution is mi...

Embodiment 2

[0079] (1) Preparation of modified graphene powder:

[0080] Place the raw graphene B in an oven at 140°C to dry for 8 hours, then mix the dried graphene micropowder with the acid solution made by mixing concentrated sulfuric acid and concentrated nitric acid in a volume ratio of 3:5 in a mass ratio of 1:6.5 Mix, then heat and reflux under stirring, the heating temperature is 160°C, and the treatment time is 28 hours. After taking out the treated product, wash it repeatedly with distilled water until it is neutral, and then put it in a 140°C oven to dry for 16 hours.

[0081] The above-mentioned dried graphene and coupling agent-absolute ethanol solution were mixed evenly according to the mass ratio of 1:6, and the obtained slurry was put into a ball mill with a rotation speed of 450 rpm for 3.5 hours, and finally placed in a vacuum of 140 Dry in an oven at ℃ for 16 hours to obtain modified graphene micropowder;

[0082] The coupling agent-absolute ethanol solution is...

Embodiment 3

[0087] (1) Preparation of modified graphene powder:

[0088] Place the raw graphene B in an oven at 140°C to dry for 8 hours, then mix the dried graphene micropowder with the acid solution made by mixing concentrated sulfuric acid and concentrated nitric acid in a volume ratio of 3:5 in a mass ratio of 1:6.5 Mix, then heat and reflux under stirring, the heating temperature is 160°C, and the treatment time is 28 hours. After taking out the treated product, wash it repeatedly with distilled water until it is neutral, and then put it in a 140°C oven to dry for 16 hours.

[0089] The above-mentioned dried graphene and coupling agent-absolute ethanol solution were mixed evenly according to the mass ratio of 1:6, and the obtained slurry was put into a ball mill with a rotation speed of 450 rpm for 3.5 hours, and finally placed in a vacuum of 140 Dry in an oven at ℃ for 16 hours to obtain modified graphene micropowder;

[0090] The coupling agent-absolute ethanol solution is m...

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Abstract

The invention discloses an electricity-conducting and antibacterial polyamide 6 / polypropylene composite material and a preparation method thereof. The composite material is formed by mixing and extruding the following components: 100 parts of polyamide 6, 50-100 parts of polypropylene, 5-30 parts of conductive filler, 0.6-2.8 part(s) of an antibacterial agent, 10-30 parts of a compatilizer, 0.4-1.2 part(s) of an antioxygen, and 0.3-0.6 part of a dispersing agent, wherein the conductive filler is modified graphene micro powder subjected to the surface treatment through an acid and a coupling agent-absolute ethyl alcohol solution in sequence. According to the invention, the modified graphene micro powder is compounded with an inorganic antibacterial agent for use, and the electricity-conducting and antibacterial performance of the polyamide 6 / polypropylene composite material is improved, so that the application range of the composite material is greatly expanded.

Description

[0001] technical field [0002] The invention relates to the field of plastic modification, in particular to a conductive and antibacterial polyamide 6 / polypropylene composite material and a preparation method thereof. [0003] Background technique: [0004] Polypropylene (PP for short) has been widely used in various fields such as automobiles, home appliances, packaging, and medical treatment because of its low price, excellent performance, wide source, and easy processing, and has become one of the most widely used plastics in modern times. Polypropylene has light weight, non-toxic, odorless, good chemical stability, and excellent electrical properties (generally, its surface resistivity is between 10 16 ~10 18 Ω), and is insoluble in common solvents at room temperature, and has the advantages of low water absorption. [0005] Polyamide 6 (referred to as PA6) has excellent thermodynamic properties, good toughness, good chemical resistance, good wear resistance, self-l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L23/12C08L23/14C08K13/06C08K9/04C08K9/02C08K3/04B29C47/92B29C48/92
CPCB29C47/92B29C48/92B29C2948/92704C08K2201/001C08L23/12C08L77/02C08L2205/03C08L2205/08C08L23/14C08L51/06C08K13/06C08K9/04C08K9/02C08K3/04C08L23/0884B29C48/40B29C2948/92895
Inventor 杨桂生俞飞
Owner HEFEI GENIUS NEW MATERIALS
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