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Polymer-based hyperbranched metal phthalocyanine@nano-barium titanate composite material as well as preparation method and application thereof

A technology of metal phthalocyanine and composite materials, which is applied in the field of polymer-based hyperbranched metal phthalocyanine@nano-barium titanate composite materials and its preparation, can solve the problems of limited performance, poor compatibility, and uneven distribution of composite materials. Achieve the effect of avoiding separation, ensuring stability and tightness

Active Publication Date: 2017-05-10
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the huge difference in surface energy between nano-ceramics and polymers, the compatibility between the two is poor, inorganic nanoparticles are easy to agglomerate, produce pores, cavities and other problems, resulting in uneven distribution of composite materials, which limits the further improvement of its performance.

Method used

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  • Polymer-based hyperbranched metal phthalocyanine@nano-barium titanate composite material as well as preparation method and application thereof
  • Polymer-based hyperbranched metal phthalocyanine@nano-barium titanate composite material as well as preparation method and application thereof
  • Polymer-based hyperbranched metal phthalocyanine@nano-barium titanate composite material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Step 1, ultrasonically disperse 10 g of barium titanate nanoparticles with a particle size between 50 and 200 nm in 350 mL of hydrogen peroxide solution (concentration: 30 vol%) for 1 hour, stir at a temperature of 105 ° C for 4 hours, and then It is separated under the condition of 3000r / min and dried under the condition of vacuum at 60°C to prepare highly active nano barium titanate;

[0071] Step 2, ultrasonically disperse 8 g of the above-mentioned highly active nanobarium titanate nanoparticles in 250 mL of N,N-dimethylformamide for 1 hour, then add 1.6 g of 4-nitrophthalonitrile, 2.4 g of Potassium carbonate water, and stirred at a temperature of 80°C for 8 hours, then separated at a centrifugal speed of 3000r / min, and dried in vacuum at 60°C to prepare cyanated nano barium titanate;

[0072] Step 3, ultrasonically disperse 5 g of the above-mentioned cyanated nanobarium titanate in 200 mL of N,N-dimethylformamide for 1 hour, then add 0.25 g of cuprous chloride and...

Embodiment 2

[0081] Other steps are as described in Example 1, the only difference is that the amount of hyperbranched metal phthalocyanine@nano barium titanate particles with a core-shell structure in step 4 is changed to 0.3934g, and the amount of polyethersulfone is changed to 0.3226g, That is, the polymer-based hyperbranched metal phthalocyanine@nano barium titanate composite material was obtained.

[0082] In the hyperbranched metal phthalocyanine@nano-barium titanate particles with core-shell structure prepared in this example, the mass ratio of the inner core nano-barium titanate to the outer shell hyperbranched metal phthalocyanine is 92:8.

[0083] In the polymer-based hyperbranched metal phthalocyanine@nano barium titanate composite material prepared in the embodiment of the present invention, the mass ratio of polyethersulfone and hyperbranched metal phthalocyanine@nano barium titanate particles with a core-shell structure is 45: 55, wherein the volume ratio of polyethersulfone:...

Embodiment 3

[0086]Other steps are as described in Example 1, the only difference is that the amount of hyperbranched metal phthalocyanine@nano barium titanate particles with a core-shell structure in step 4 is changed to 0.5901g, and the amount of polyethersulfone is changed to 0.2823g, That is, the polymer-based hyperbranched metal phthalocyanine@nano barium titanate composite material was obtained.

[0087] In the hyperbranched metal phthalocyanine@nano-barium titanate particles with core-shell structure prepared in this example, the mass ratio of the inner core nano-barium titanate to the outer shell hyperbranched metal phthalocyanine is 92:8.

[0088] In the polymer-based hyperbranched metal phthalocyanine@nano barium titanate composite material prepared in the embodiment of the present invention, the mass ratio of polyethersulfone and hyperbranched metal phthalocyanine@nano barium titanate particles with a core-shell structure is 32: 68, wherein the volume ratio of polyethersulfone: ...

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Abstract

The invention discloses a polymer-based hyperbranched metal phthalocyanine@nano-barium titanate composite material as well as a preparation method and application thereof. A hyperbranched metal phthalocyanine@nano-barium titanate particle in the composite material has a core-shell structure; an inner core nano-barium titanate is subjected to surface treatment, and double-cyano terminated functional groups are introduced; then hyperbranched metal phthalocyanin is grafted to further cover the inner core nano-barium titanate; organic functionalization modification is carried out on the surface of the nano-barium titanate, so that surface energy difference of inorganic nanoparticles and an organic polymer is reduced, and an interface effect is enhanced; gathering of particles is reduced, and the dispersity of the nanoparticles in a polymer base body is improved, so that the polymer-based hyperbranched metal phthalocyanine@nano-barium titanate composite material with a high dielectric constant, low dielectric loss and high breakdown strength is obtained; the composite material also has excellent processing performance. The composite material disclosed by the invention is applicable to preparation of electronic and electrical equipment including embedded capacitors, thin film capacitors, high-energy-storage capacitors and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer-based nanocomposite materials and their preparation, and specifically relates to a polymer-based hyperbranched metal phthalocyanine@nano-barium titanate composite material with high dielectric properties and its preparation method and application. Background technique [0002] As electronic and electrical products become increasingly miniaturized and intelligent, capacitors and memories are important components of electronic and electrical products, and their performance determines the quality and efficacy of electronic and electrical products. Dielectric materials are the core materials of capacitors and memories. Composition, the superiority of its dielectric properties is the top priority. [0003] The currently used dielectric materials mainly include high-dielectric ferroelectric ceramics and polymer resins. However, due to the brittleness and poor adhesion of inorganic materials in the produ...

Claims

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Application Information

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IPC IPC(8): C08G83/00C08L81/06C08L87/00C08K3/18
Inventor 张云鹤杨罡姜振华许文翰刘捷
Owner JILIN UNIV
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