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A metal/ polymer composite particle and method of preparing the same

A polymer and cross-linked polymer technology, applied in the field of metal/polymer composite particles, can solve the problems of large specific gravity of composite metal particles, reduced electrical conductivity, reduced mechanical properties, etc., and achieves recyclable toxicity, easy separation, and excellent electrical conductivity. sexual effect

Inactive Publication Date: 2009-10-07
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its outstanding disadvantages are: (1) It is difficult for the conductive filler to disperse evenly in the polymer material, which greatly affects the conductivity; (2) In order to obtain good conductivity, the filling amount of the conductive substance must be high enough, so it is often accompanied by decrease in mechanical properties
However, due to the large specific gravity of the conductive particles and composite metal particles, which are the key components of ACF, the particles will deposit during storage and use, which will reduce their conductivity.

Method used

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  • A metal/ polymer composite particle and method of preparing the same
  • A metal/ polymer composite particle and method of preparing the same
  • A metal/ polymer composite particle and method of preparing the same

Examples

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Embodiment 1

[0053] PMV and total monomer mass ratio 1: 1, MAn and DVB molar ratio 1: 1, wherein PMV 3g, MAn 1.56g, DVB-551.44g; Initiator is AIBN, 0.06g; Medium is butyl acetate and normal Heptane, butyl acetate 70vol.-%, n-heptane 30vol.-%, respectively 56ml and 24ml. Adopt water bath heating, react 10 hours under the temperature of 75 ℃, remove PMV inner core with acetone, obtain polymer hollow microsphere average particle diameter (d), microsphere wall thickness (d '), polymerization yield (C p ), the results are shown in Table 1, and the transmission electron microscope photos of polymer hollow microspheres are shown in figure 1 . Take 0.3 g of dried hollow microspheres and 0.3 g of ethylenediamine; the medium is tetrahydrofuran, 20 mL. Under magnetic stirring, react at room temperature for 30 minutes to obtain hollow polymer microspheres after amination. The infrared spectra of hollow polymer microspheres before and after amination are shown in Figure 10 . Take 0.2 g of hollow m...

Embodiment 2

[0055] PMV and total monomer mass ratio 4:1, MAn and DVB molar ratio 1:1, wherein PMV 12g, MAn 1.56g, DVB-551.44g; Initiator is AIBN, 0.06g; Medium is butyl acetate and normal Heptane, butyl acetate 70vol.-%, n-heptane 30vol.-%, respectively 56ml and 24ml. Adopt water bath heating, react 10 hours under the temperature of 75 ℃, remove PMV inner core with acetone, obtain polymer hollow microsphere average particle diameter (d), microsphere wall thickness (d '), polymerization yield (C p ), the results are shown in Table 1, and the transmission electron microscope photos of polymer hollow microspheres are shown in figure 2 . Take 0.3 g of dried hollow microspheres and 0.3 g of propylenediamine; the medium is ethanol, 20 mL. Under magnetic stirring, react at room temperature for 30 minutes to obtain aminated polymer hollow microspheres. Take 0.2 g of hollow microspheres after amination, disperse them in 25 ml of deionized water, add 4×10 -2 M silver nitrate solution 1ml, 9.1m...

Embodiment 3

[0057] PMV and total monomer mass ratio 1: 4, MAn and DVB molar ratio 1: 1, wherein PMV0.75g, MAn 1.56g, DVB-551.44g; Initiator is AIBN, 0.06g; Medium is butyl acetate and N-heptane, butyl acetate 70vol.-%, n-heptane 30vol.-%, respectively 56ml and 24ml. Adopt water bath heating, react 10 hours under the temperature of 75 ℃, remove PMV inner core with acetone, obtain polymer hollow microsphere average particle diameter (d), microsphere wall thickness (d '), polymerization yield (C p ), the results are shown in Table 1, and the transmission electron microscope photos of polymer hollow microspheres are shown in image 3 . Take 0.3 g of dried hollow microspheres and 0.3 g of ethylenediamine; the medium is tetrahydrofuran, 20 mL. Under magnetic stirring, react at room temperature for 30 minutes to obtain aminated polymer hollow microspheres. Take 0.2 g of hollow microspheres after amination, disperse them in 25 ml of deionized water, add 4×10 -2 M silver nitrate solution 1ml, ...

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Abstract

The present invention relates to a metal / polymer composite particle and method of preparing the same, and the outer layer (lamella) is metal and the inner layer (nucleus) is organic polymer. More specifically, the lamella is conductive metal layer and the metal includes but not limited to Cu, Ag, Au and Pt etc. the organic polymer particles used as composite particle nucleus can be hollow polymer balls, sphere wall of the organic polymer balls has a certain intensity and the surface contains a large amount of reactivity groups, and metal / polymer composite particles can be obtained on deposition metal layer of the surface after amination modification. The metal / polymer composite particles can be used for preparing conductive materials and conductive particles used as conductive adhesive etc.

Description

technical field [0001] The present invention relates to a metal / polymer composite particle, which is characterized in that the outer layer (shell) is metal and the inner layer (core) is organic polymer. More specifically, the shell layer is a conductive metal layer, and the metal includes but not limited to Cu, Ag, Au, and Pt. The organic polymer particle as the core of the composite particle can be a hollow polymer sphere or a solid polymer sphere. The organic polymer microsphere wall has a certain strength and the surface contains a large number of reactive groups. Afterwards, a metal layer can be deposited on the surface to obtain metal / polymer composite particles. Such metal / polymer composite particles can be used to prepare conductive materials, conductive particles used as conductive glue, and the like. Background technique [0002] The core-shell composite particles prepared by coating polymer microspheres, in which the chemical composition and thickness of the shel...

Claims

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Application Information

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IPC IPC(8): C08F212/36C08F222/06
Inventor 杨万泰敦硕马育红刘莲英
Owner BEIJING UNIV OF CHEM TECH
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