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Nanocomposite material as well as preparation method and application thereof

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

Inactive Publication Date: 2017-03-22
WUXI MINGSHENG TEXTILE MACHINERY
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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 material as well as preparation method and application thereof
  • Nanocomposite material as well as preparation method and application thereof
  • Nanocomposite material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] In this embodiment, the nano-composite material is prepared from nano-modified masterbatch and polyethylene, and the mass ratio of the nano-modified masterbatch to polyethylene is 1:9, and the nano-modified masterbatch is made of The following components by weight are prepared:

[0042]

[0043]

[0044] The preparation method is as follows:

[0045] (1) Under the protection of nitrogen, swell polyethylene, nano calcium carbonate, ceramic nanoparticles, nano silicon carbide, silane coupling agent, first monomer, second monomer and initiator at 25°C for 10 min, and then at 100 Stir and react at ℃ for 0.5 hours, and the product is dried to obtain nano-modified masterbatch;

[0046] (2) Mix the nano-modified masterbatch and polyethylene uniformly, and mix them in a twin-screw extruder. The preheating temperature of the screw area of ​​the twin-screw extruder is 300°C and the screw speed is 400r / min. The nanocomposite material.

Embodiment 2

[0048] In this embodiment, the nano-composite material is prepared from a nano-modified masterbatch and polyethylene, the mass ratio of the nano-modified masterbatch to polyethylene is 2:8, and the nano-modified masterbatch is made of The following components by weight are prepared:

[0049]

[0050]

[0051] The preparation method is as follows:

[0052] (1) Under the protection of nitrogen, swell polyethylene, nano calcium carbonate, ceramic nanoparticles, nano silicon carbide, silane coupling agent, first monomer, second monomer and initiator at 20°C for 15 minutes, and then at 80°C. The reaction was stirred at ℃ for 5 hours, and the product was dried to obtain a nano-modified master batch;

[0053] (2) Mix the nano-modified masterbatch and polyethylene uniformly and mix them 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 material.

Embodiment 3

[0055] In this embodiment, the nano-composite material is prepared from a nano-modified masterbatch and polyethylene, and the mass ratio of the nano-modified masterbatch to polyethylene is 3:8, and the nano-modified masterbatch is made of The following components by weight are prepared:

[0056]

[0057] The preparation method is as follows:

[0058] (1) Under the protection of nitrogen, swell polyethylene, nano calcium carbonate, ceramic nanoparticles, nano silicon carbide, silane coupling agent, first monomer, second monomer and initiator at 10°C for 20 min, and then at 90°C. The reaction was stirred at ℃ for 3 hours, and the product was dried to obtain a nano-modified masterbatch;

[0059] (2) Mix the nano-modified masterbatch and polyethylene uniformly, and mix them in a twin-screw extruder. The preheating temperature of the screw area of ​​the twin-screw extruder is 250°C and the screw speed is 250r / min to obtain The nanocomposite material.

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Abstract

The invention provides a nanocomposite material as well as a preparation method and application thereof. According to the nanocomposite material, a nano modified masterbatch is prepared by adopting polyethylene, nano calcium carbonate, ceramics nanoparticles, nano silicon carbide, a silane coupling agent, a first monomer, a second monomer and an initiator; the nano calcium carbonate and the ceramics nanoparticles are dispersed in the nano modified masterbatch, so that the nano modified masterbatch has good mechanical property; besides, the silane coupling agent can enhance compatibility between the nano calcium carbonate as well as the ceramics nanoparticles and a polyethylene material, so that a better dispersing effect is achieved; an in-situ grafting intercalation technology is utilized to obtain the nanocomposite material with an intercalation structure, and nano-compositing of the polyethylene and inorganic substances is realized, thus effectively improving the mechanical property, heat resistance, ageing resistance and the like of polyethylene plastic.

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] Polyethylene has the advantages of light weight, non-toxicity, excellent dielectric properties, chemical stability and corrosion resistance, low price, easy molding and processing, and 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 has better mechanical properties and heat resistance and aging resistance. Therefore, the current research focus is on the modification of polyethylene. [0003] CN 103881187 A discloses a nano carbon fiber modified polyethylene material, the components of which are proportioned by mass percentage: polyethylene 50% to 70%, nano car...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L51/06C08K9/06C08K3/26C08K3/34C08J3/22C08F255/02C08F222/06C08F212/08C08F220/06C08F220/14
CPCC08L23/06C08F255/02C08J3/226C08J2323/06C08J2451/06C08K2201/011C08L2201/08C08L2203/18C08L2207/062C08L2207/066
Inventor 张达明
Owner WUXI MINGSHENG TEXTILE MACHINERY
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