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Nanocomposite and preparation method and application thereof

A nano-composite material and nano-modification technology, applied in the field of nano-composite materials and their preparation, can solve the problems of general heat resistance and aging resistance, poor mechanical properties, etc., achieve excellent performance, improve mechanical properties, and good dispersion effect Effect

Inactive Publication Date: 2016-08-17
WUXI CHANGAN SHUGUANG GLOVE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the mechanical properties of the material are not very good, and its heat resistance and aging resistance are generally

Method used

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  • Nanocomposite and preparation method and application thereof
  • Nanocomposite and preparation method and application thereof
  • Nanocomposite and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In this embodiment, the nanocomposite material is prepared from nano-modified masterbatch and polypropylene, the mass ratio of nano-modified masterbatch to polypropylene is 1:10, and the nano-modified masterbatch is prepared from The following components by weight were prepared:

[0041]

[0042] The preparation method is as follows:

[0043] (1) Under nitrogen protection, swell polypropylene, nano-calcium carbonate, polyester fiber, nano-silver, silane coupling agent, first monomer, second monomer and initiator at 25°C for 10min, and then at 100°C Stirring and reacting for 0.5 hours, the product was dried to obtain a nano-modified masterbatch;

[0044] (2) Mix the nano-modified masterbatch and polypropylene evenly, and knead in a twin-screw extruder. The preheating temperature in the screw region of the twin-screw extruder is 300° C., and the screw speed is 400r / min, to obtain The nanocomposite.

Embodiment 2

[0046] In this embodiment, the nanocomposite material is prepared from nano-modified masterbatch and polypropylene, the mass ratio of nano-modified masterbatch to polypropylene is 1.1:13, and the nano-modified masterbatch is made of The following components by weight were prepared:

[0047]

[0048] The preparation method is as follows:

[0049] (1) Under nitrogen protection, swell polypropylene, nano-calcium carbonate, polyester fiber, nano-silver, silane coupling agent, first monomer, second monomer and initiator at 20°C for 15min, then at 80°C Stirring and reacting for 5 hours, the product was dried to obtain the nano-modified masterbatch;

[0050] (2) Mix the nano-modified masterbatch and polypropylene evenly, and knead in a twin-screw extruder, the preheating temperature of the screw area of ​​the twin-screw extruder is 200°C, and the screw speed is 300r / min, to obtain The nanocomposite.

Embodiment 3

[0052] In this embodiment, the nanocomposite material is prepared from nano-modified masterbatch and polypropylene, the mass ratio of nano-modified masterbatch to polypropylene is 1.5:11, and the nano-modified masterbatch is made of The following components by weight were prepared:

[0053]

[0054]

[0055] The preparation method is as follows:

[0056] (1) Under nitrogen protection, swell polypropylene, nano-calcium carbonate, polyester fiber, nano-silver, silane coupling agent, first monomer, second monomer and initiator at 10°C for 20min, then at 90°C Stirring and reacting for 3 hours, the product was dried to obtain the nano-modified masterbatch;

[0057] (2) Mix the nano-modified masterbatch and polypropylene evenly, and knead in a twin-screw extruder. The preheating temperature in the screw region of the twin-screw extruder is 250° C., and the screw speed is 250r / min, to obtain The nanocomposite.

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Abstract

The invention provides a nanocomposite and a preparation method and application thereof. According to the nanocomposite, polyethylene, nano-calcium carbonate, ceramic nano-particles, nano-silver, a silane coupling agent, a first monomer, a second monomer and an initiator are adopted for preparing a nano-modified master batch. Due to the fact that nano-calcium carbonate and the ceramic nano-particles are dispersed in the nano-modified master batch, the nano-modified master batch has good mechanical properties. Besides, the silane coupling agent can enhance the compatibility between nano-calcium carbonate, the ceramic nano-particles and the polyethylene material, so that the nanocomposite has a better dispersion effect. The in-situ graft intercalation technology is utilized for obtaining the nanocomposite with an intercalation, nano-compositing of polyethylene and inorganic matter is realized, and therefore the mechanical properties, heat resistance, aging resistance and the like of polyethylene plastics are effectively improved.

Description

technical field [0001] The invention belongs to the field of nano-modified composite materials, and relates to a nano-composite material and a preparation method and application thereof. Background technique [0002] Due to its light weight and non-toxicity, polyethylene has the advantages of excellent dielectric properties, chemical stability and corrosion resistance, and is cheap and easy to form and process. It can be widely used in electrical appliances, chemicals, food, machinery and other industries. With the continuous development of science and technology, higher requirements are put forward for the performance of polyethylene materials, and it is hoped that it will have more excellent mechanical properties and heat and aging resistance. Therefore, the modification of polyethylene is currently a research hotspot. [0003] CN 103881187A discloses a nano-carbon fiber modified polyethylene material, the components of which are proportioned by mass percentage: polyethyl...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L51/06C08L67/00C08K9/06C08K7/24C08K3/26C08K3/08C08F255/02C08J3/22
CPCC08F255/02C08J3/226C08J2323/12C08J2451/06C08K2201/003C08K2201/011C08L23/12C08L2201/08C08L2205/03C08L2205/16C08L51/06C08L67/00C08K9/06C08K7/24C08K2003/265C08K2003/0806C08F222/06C08F212/08C08F220/06C08F220/14
Inventor 缪建良
Owner WUXI CHANGAN SHUGUANG GLOVE FACTORY
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