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Antibacterial polypropylene material and its prepn process

A technology of antibacterial polypropylene and polypropylene resin, which is applied in botany equipment and methods, biocides, plant growth regulators, etc., can solve the problems of unsustainable, poor antibacterial performance, and high production costs, and achieve reduced production costs and weather resistance Performance improvement, rapid effect of antibacterial performance

Inactive Publication Date: 2007-12-19
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the traditional antibacterial polypropylene material with high production cost, poor antibacterial performance and non-durability, and provide a low production cost, excellent antibacterial performance, fast and durable polypropylene material and its preparation method

Method used

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  • Antibacterial polypropylene material and its prepn process

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preparation example Construction

[0034] Please refer to Fig. 1, prepare the preparation method of described antibacterial polypropylene material, comprise the following steps:

[0035] Step 1: Weigh 100 parts of polypropylene resin, 25 to 35 parts of filler, 5 to 15 parts of toughening agent, 0.2 to 0.8 parts of antibacterial agent, 0.5 to 1.5 parts of dispersant, and 0.1 to 0.5 parts of antioxidant according to weight ratio parts, 0.1 to 0.5 parts of ultraviolet absorbers;

[0036] Step 2: Mix the components weighed in step 1 in a high-speed mixer for 3 to 5 minutes;

[0037] Step 3: Place the mixed components in a parallel twin-screw extruder for melt extrusion and granulation.

[0038] The extrusion process of the parallel twin-screw extruder is: 1 zone 170--180 ℃, 2 zone 180--190 ℃, 3 zone 180-190 ℃, 4 zone 175-185 ℃, screw speed 300-350r / min, feeding frequency 15~20Hz, melt pressure 3.0~4.0MPa, vacuum degree -0.03--0.06Mpa.

Embodiment 1

[0042] In parts by weight, mix 100 parts of PP resin, 25 parts of filler, 5 parts of toughening agent, 0.2 part of antibacterial agent, 0.5 part of dispersant, 0.1 part of antioxidant, and 0.1 part of ultraviolet absorber in a high-speed mixer 3 to 5 minutes, the speed of the high-speed mixer is 800 rpm; then the mixed raw materials are placed in a parallel twin-screw extruder for melt extrusion and granulation. The extrusion process is: 1 zone 170--180 ℃ , Zone 2 180--190°C, Zone 3 180--190°C, Zone 4 175--185°C, screw speed 300-350r / min, feeding frequency 15-20Hz, melt pressure 3.0-4.0MPa, vacuum degree -0.03---0.06MPa.

Embodiment 2

[0044] In parts by weight, 100 parts of PP resin, 30 parts of filler, 10 parts of toughening agent, 0.5 part of antibacterial agent, 1 part of dispersant, 0.3 part of antioxidant, 0.3 part of ultraviolet absorber, mixed in a high-speed mixer 3 to 5 minutes, the speed of the high-speed mixer is 800 rpm; then the mixed raw materials are placed in a parallel twin-screw extruder for melt extrusion and granulation. The extrusion process is: 1 zone 170--180 ℃ , Zone 2 180--190°C, Zone 3 180--190°C, Zone 4 175--185°C, screw speed 300-350r / min, feeding frequency 15-20Hz, melt pressure 3.0-4.0MPa, vacuum degree -0.03-- -0.06MPa.

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Abstract

The antibacterial polypropylene material consists of polypropylene resin 100 weight portions, stuffing 25-35 weight portions, toughening agent 5-15 weight portions, antiseptic 0.2-0.8 weight portion, dispersant 0.5-1.5 weight portions, antioxidant 0.1-0.5 weight portion and ultraviolet absorber 0.1-0.5 weight portion. The polypropylene resin is homopolypropylene, and the antiseptic is compounded with nanometer silver and organosilicon antiseptic. The present invention also provides the preparation process of the antibacterial polypropylene material with low production cost, excellent antiseptic performance.

Description

technical field [0001] The invention relates to an antibacterial polypropylene material and a preparation method thereof, in particular to an antibacterial and durable polypropylene material and a preparation method thereof. Background technique [0002] Polypropylene (PP) is one of the five general-purpose plastics with a density of 0.90g / cm 3 , is the second lightest polymer material in existing resins (only larger than polymethylpentene, with a density of 0.85g / cm 3 ). [0003] In people's daily life, polypropylene plastic products are widely used: such as kitchen utensils, toilet facilities, trash cans, plastic shells of household appliances, wallpapers, food packaging bags, etc. Due to the appropriate temperature and humidity, it is very easy to be infected with bacteria. Therefore, it is extremely necessary to develop an antibacterial polypropylene material. [0004] At present, there are mainly two methods of making antibacterial polypropylene materials: filling t...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K5/524A01N59/16B29C47/40B29C47/92B29B9/12C08K3/26C08K5/10C08L23/08B29C48/04B29C48/92
CPCB29C47/92B29C48/04
Inventor 徐东贺永杨书涛
Owner SHENZHEN KEJU NEW MATERIAL
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