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Nano-composite material, 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 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: 2017-05-31
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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  • Nano-composite material, preparation method and application thereof
  • Nano-composite material, 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 1:9, and the nano-modified masterbatch is prepared from The following components by weight were prepared:

[0041]

[0042]

[0043] The preparation method is as follows:

[0044] (1) Under the protection of nitrogen, polypropylene, nano-calcium carbonate, polyester fiber, nano-silicon carbide, silane coupling agent, first monomer, second monomer and initiator were swollen at 25°C for 10min, and then at 100 Stir and react at ℃ for 0.5 hours, and dry the product to obtain a nano-modified masterbatch;

[0045] (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

[0047] In this embodiment, the nanocomposite is prepared from nano-modified masterbatch and polypropylene, the mass ratio of nano-modified masterbatch to polypropylene is 2:8, and the nano-modified masterbatch is prepared from The following components by weight were prepared:

[0048]

[0049]

[0050] The preparation method is as follows:

[0051] (1) Under the protection of nitrogen, polypropylene, nano-calcium carbonate, polyester fiber, nano-silicon carbide, silane coupling agent, first monomer, second monomer and initiator were swelled at 20°C for 15min, and then at 80 Stir and react at ℃ for 5 hours, and dry the product to obtain a nano-modified masterbatch;

[0052] (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

[0054] In this embodiment, the nanocomposite is prepared from nano-modified masterbatch and polypropylene, the mass ratio of nano-modified masterbatch to polypropylene is 3:8, and the nano-modified masterbatch is prepared from The following components by weight were prepared:

[0055]

[0056] The preparation method is as follows:

[0057] (1) Under the protection of nitrogen, polypropylene, nano-calcium carbonate, polyester fiber, nano-silicon carbide, silane coupling agent, first monomer, second monomer and initiator were swollen at 10°C for 20min, and then at 90 Stir and react at ℃ for 3 hours, and dry the product to obtain a nano-modified masterbatch;

[0058] (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 nano-composite material, a preparation method and application thereof. According to the nano-composite material provided by the invention, polyethylene, nano calcium carbonate, ceramic nano-particles, nano silicon carbide, a silane coupling agent, a first monomer, a second monomer and an initiator are prepared into a nano-modified masterbatch, because of the nano calcium carbonate and ceramic nano-particles, the nano-modified masterbatch has good mechanical properties. In addition, the silane coupling agent can improve the compatibility between the nano calcium carbonate, ceramic nano-particles and a polyethylene material so as to reach better dispersion effect. In-situ graft intercalation technology is utilized to obtain the nano-composite material with an intercalation structure so realize nano-compounding of polyethylene and inorganic substances, thereby effectively improving the mechanical properties, heat resistance, aging resistance and the like of polyethylene plastics.

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 103881187 A discloses a nano-carbon fiber modified polyethylene material, the components of which are proportioned by mass percentage: polyethy...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L51/06C08K13/04C08K3/26C08K7/14C08K3/34C08F255/02C08F222/06C08F212/08C08F220/06C08J3/22B29C47/92B29C48/92
CPCC08L23/12B29C48/92B29C2948/9259B29C2948/92704C08F255/02C08J3/226C08J2323/12C08J2423/12C08K2201/003C08K2201/011C08L2201/08C08L2203/18C08L2205/025C08L2205/03C08L2205/16C08L2207/062C08L2207/066C08F222/06C08F212/08C08F220/06C08L51/06C08K13/04C08K2003/265C08K7/14C08K3/34
Inventor 张达明
Owner WUXI MINGSHENG TEXTILE MACHINERY
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