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Titanium diboride oxide/thermosetting resin composite material and preparation method thereof

A resin composite material and diboron oxide technology are applied in the field of resin-based composite materials to achieve the effect of broad application prospect, suitable for large-scale application and easy removal

Active Publication Date: 2012-10-10
扬州华上新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report on the preparation of titanium diboride for high dielectric constant composite materials

Method used

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  • Titanium diboride oxide/thermosetting resin composite material and preparation method thereof
  • Titanium diboride oxide/thermosetting resin composite material and preparation method thereof
  • Titanium diboride oxide/thermosetting resin composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Preparation of titanium diboride oxide

[0025] 30g of titanium diboride was added to 200mL of ethanol, stirred thoroughly for 0.5h, filtered, and vacuum-dried at 120°C for 8h to obtain pure titanium diboride.

[0026] Put 15g of pure titanium diboride in a crucible, and then place the crucible in a muffle furnace at a temperature of 600°C for oxidation treatment for 20 minutes. After the oxidation reaction, the oxidized titanium diboride was poured into a beaker containing 100 mL of ethanol, ultrasonically oscillated for 0.5 h, filtered with suction, and then dried in a vacuum oven at 120° C. for 8 h to obtain titanium diboride oxide.

[0027] See attached figure 1 , which is a transmission electron micrograph comparison diagram of oxidized titanium diboride prepared in this embodiment and titanium diboride; by figure 1 It can be seen that not only the characteristic peaks of titanium diboride but also the characteristic peaks of titanium dioxide of rutile crysta...

Embodiment 2

[0032] Preparation of Titanium Diboride Oxide / Epoxy Resin Composite

[0033] Add 40g of titanium diboride oxide prepared in Example 1 and 100g of epoxy resin (grade E-51) into the flask, stir at 65°C for 2h, add 4g of 2-ethyl-4-methylimidazole, continue Stir for 10 minutes to obtain a uniform mixture; pour the mixture into the mold, then place the mold in a microwave oven with a power of 700W, and irradiate it intermittently for 6 times (10s each time, once every 10s interval); then put the mold into In an electric blast drying oven, thermal curing is carried out according to the processes of 80°C / 2h + 100°C / 2h + 120°C / 2h and 150°C / 4h to obtain titanium diboride / epoxy resin composite materials. Its dielectric constant-frequency curve and dielectric loss-frequency curve are as attached image 3 and 4 shown.

Embodiment 3

[0035] Add 60g of titanium diboride oxide prepared in Example 1 and 100g of epoxy resin (grade E-51) into the flask, stir at 65°C for 2h, add 4g of 2-ethyl-4-methylimidazole, continue Stir for 10 minutes to obtain a uniform mixture; pour the mixture into the mold, then place the mold in a microwave oven with a power of 700W, and irradiate it intermittently for 6 times (10s each time, once every 10s interval); then put the mold Put it into an electric blast drying oven, and perform thermal curing according to the processes of 80°C / 2h + 100°C / 2h + 120°C / 2h and 150°C / 4h to obtain a titanium diboride / epoxy resin composite material. Its dielectric constant-frequency curve and dielectric loss-frequency curve are as attached image 3 and 4 shown.

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Abstract

The invention relates to a titanium diboride oxide / thermosetting resin composite material and a preparation method thereof. The method comprises the following steps of: in the presence of oxygen, performing oxidation treatment of titanium diboride at the temperature of 500-1,000 DEG C to obtain a crude product; mixing the crude product with ethanol; performing suction filtration and vacuum drying to obtain titanium diboride oxide; uniformly mixing 100 parts of molten thermosetting resin and 0.1-160 parts of titanium diboride oxide; and curing to obtain the titanium diboride oxide / thermosetting resin composite material. Through the invention, the prepared composite material has the characteristics of high dielectric constant and low dielectric loss; and the conductor surface can be coated with an insulator layer by a simple oxidation method, and the control on the thickness of the insulator layer on the surface and the control on the dielectric performance of the composite material are realized through adjustment of the oxidation temperature and oxidation time. The preparation method of the composite material is simple and easy to implement and is suitable for large-scale application.

Description

technical field [0001] The invention relates to a resin-based composite material, in particular to a conductor / polymer composite material with high dielectric constant and low dielectric loss and a preparation method thereof. Background technique [0002] High dielectric constant composite materials are important functional materials at present. They have good functions of storing electric energy and uniform electric field, and play an important role in many cutting-edge industrial fields including aerospace, electronic information, and electrical insulation. Conductor / polymer composites are an important form of preparing high dielectric constant materials, but they lead to large dielectric loss, which seriously limits their applications. Therefore, the development of conductor / polymer composites with high dielectric constant and low dielectric loss has become the focus and difficulty of today's high dielectric constant materials, which has important theoretical significance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/08C08L79/04C08L63/00C08K9/10C08K3/38
Inventor 梁国正顾龙成顾嫒娟王童星袁莉
Owner 扬州华上新材料有限公司