Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Long-acting broad-spectrum antibacterial polyethylene material and preparation method thereof

A polyethylene, broad-spectrum technology, applied in the field of polyethylene material and its preparation in the rotational molding production process, can solve the problems that polyethylene does not have antibacterial and mildew proof, no antibacterial polyethylene material, etc., and achieves excellent durability and excellent antibacterial properties. function, ensure the effect of dispersion

Active Publication Date: 2022-02-18
泛海海工(山东)智能装备有限公司
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006]The rotomolding process can produce large storage tanks, toys, packing boxes, marine equipment and other products, and the service life is mostly as long as 5-10 years. Traditional polyethylene is not It has the function of antibacterial and antifungal, and there is no antibacterial polyethylene material suitable for rotational molding production process in the prior art

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
  • Long-acting broad-spectrum antibacterial polyethylene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Take Sinopec polyethylene 7149U (linear low density polyethylene, density 0.934g / cm 3 , melt flow rate 4.5g / 10min), nano-titanium dioxide, paraben, oxidized polyethylene wax, silane coupling agent, antioxidant, according to the total mass of 100 parts, the mass ratio of each raw material component is poly Ethylene: nano titanium dioxide: paraben: oxidized polyethylene wax: silane coupling agent: antioxidant=93.2:2:3:0.5:1:0.3.

[0035] Heat oxidized polyethylene wax to 80°C as a grinding and dispersing agent for nano-titanium dioxide in proportion to nano-titanium dioxide and grind nano-titanium dioxide on a constant temperature grinder for 2 hours to form a nano-material with an average particle size of 205nm; then add each raw material component Mixer, mixing time 10min; melt and blend the mixed materials with a twin-screw extruder, extrude and granulate, extrusion process parameters: melt temperature is 190°C, screw speed is 200rpm; finally use a plastic mill Grindi...

Embodiment 2

[0038] Take Sinopec polyethylene 335HL (metallocene catalyzed polyethylene, density 0.936g / cm 3 , melt flow rate 5.5g / 10min), nano-titanium dioxide, paraben ester, oxidized polyethylene wax, silane coupling agent, antioxidant, according to the total mass parts as 100 parts, the mass ratio of each raw material component is poly Ethylene: nano titanium dioxide: paraben: oxidized polyethylene wax: silane coupling agent: antioxidant=95.6:1:2:0.4:0.8:0.2.

[0039] Heat oxidized polyethylene wax to 75°C as a grinding and dispersing agent for nano-titanium dioxide in proportion to nano-titanium dioxide and grind nano-titanium dioxide on a constant temperature grinder for 1.5 hours to form a nano-material with an average particle size of 220nm; then add each raw material component Mixer, the mixing time is 7min; melt and blend the mixed materials with a twin-screw extruder, extrude and granulate, and the extrusion process parameters: the melt temperature is 190°C, the screw speed is 3...

Embodiment 3

[0042] Take the polyethylene 735RW (linear low density polyethylene, density 0.935g / cm 3 , melt flow rate 7g / 10min), nano-titanium dioxide, paraben ester, oxidized polyethylene wax, silane coupling agent, antioxidant, according to the total mass parts as 100 parts, the mass ratio of each raw material component is polyethylene : nanometer titanium dioxide: paraben ester: oxidized polyethylene wax: silane coupling agent: antioxidant=90.2:3:4:0.8:1.5:0.5.

[0043] Heat oxidized polyethylene wax to 75°C as a grinding and dispersing agent for nano-titanium dioxide in proportion to nano-titanium dioxide and grind nano-titanium dioxide on a constant temperature grinder for 2.5 hours to form a nano-material with an average particle size of 215nm; then add each raw material component Mixer, mixing time 14min; melt and blend the mixed materials with a twin-screw extruder, extrude and granulate, extrusion process parameters: melt temperature is 190°C, screw speed is 160rpm; finally use a...

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
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a long-acting broad-spectrum antibacterial polyethylene material and a preparation method thereof. The long-acting broad-spectrum antibacterial polyethylene material is prepared from the following components: 88.4 to 98.3 percent of polyethylene, 0.3 to 3 percent of nano titanium dioxide, 0.5 to 5 percent of nipagin ester, 0.2 to 1 percent of dispersing agent, 0.5 to 2 percent of coupling agent and 0.2 to 0.6 percent of antioxidant. The invention has the following beneficial effects: the low processing temperature is adopted to protect the nano titanium dioxide, the dispersing agent is adopted to ensure the dispersity of the nano titanium dioxide, the performance of the polyethylene product is ensured on the basis of lower addition amount of the nano titanium dioxide, and the organic antibacterial agent and the inorganic antibacterial agent are combined, the prepared antibacterial polyethylene product has good antibacterial long-term effect and stability.

Description

technical field [0001] The invention relates to a modified polyethylene composite material, in particular to a polyethylene material with broad-spectrum antibacterial and long-lasting antibacterial functions, which is suitable for a rotational molding production process, and a preparation method thereof. Background technique [0002] With the development of science and technology and the continuous improvement of people's living standards, people pay more and more attention to environmental hygiene and self-health, and antibacterial plastics have emerged as the times require. [0003] Antibacterial plastic refers to the addition of antibacterial agents to plastics to make the plastic itself antibacterial, which can kill or inhibit the bacteria on the plastic within a certain period of time. Compared with conventional chemical and physical methods, the use of antibacterial plastics has a long sterilization time. It is economical and convenient. Antibacterial plastics can inh...

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 Applications(China)
IPC IPC(8): C08L23/08C08L23/30C08K3/22C08K5/13
CPCC08L23/0815C08K2003/2241C08L23/30C08K3/22C08K5/13
Inventor 王普潘岩宋晓阳
Owner 泛海海工(山东)智能装备有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products