Micro-nano composite particles and preparation process and device thereof

A technology of micro-nano composite and preparation process, which is applied in the field of new composite particles and its preparation process and device, which can solve the problems of small amount of filler and inability to play its role

Active Publication Date: 2019-04-12
哈尔滨泰铭科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the amount of filler is too small, often can not play its role

Method used

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  • Micro-nano composite particles and preparation process and device thereof
  • Micro-nano composite particles and preparation process and device thereof
  • Micro-nano composite particles and preparation process and device thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0068] A kind of composite particle provided by this embodiment, the nanoparticle smaller than the pore diameter of porous micro-nano particle is inserted in the porous micro-nano particle, to form three-dimensional porous and / or thorny micro-nano composite particle, three-dimensional porous and / or thorny The single-pore embedding amount of micro-nano composite particles is 5-100% of the pore volume, and the BET nitrogen adsorption specific surface area is 30m 2 / g~350m 2 / g, see figure 1 As shown, the composition of the composite particle state means that the nanoparticles may not be inserted, partially inserted, or fully inserted and become thorny, and even a certain degree of nanoparticles are attached to the surface of the matrix. figure 2 10000x, 10000x and 100000x scanning electron micrographs of three-dimensional porous / thorn-like micro-nano composite particles.

[0069] Specifically, the matrix of the above-mentioned composite particles, that is, the porous micro-na...

Embodiment 2

[0073] This embodiment provides a preparation process for the above-mentioned composite particles, comprising the following steps:

[0074] S1. Dissolve zinc nitrate hexahydrate in deionized water to form a 10g / ml zinc nitrate solution, stir for 2 minutes and set aside;

[0075] S2. Mix silicon dioxide and aluminum oxide porous micro-nano composite substrate with methanol to obtain a solution of porous micro-nano particles, place it in an ultrasonic instrument for ultrasonic dispersion, the ultrasonic frequency is 60Hz, the temperature is below 50°C, and the ultrasonic time is For 0.1h, the concentration obtained is 20g / ml porous micro-nano particle suspension; in the present embodiment, the composite substrate is made of 20% silicon dioxide and 80% aluminum oxide in parts by weight;

[0076] S3. Take ammonia water and dissolve it in deionized water, and prepare ammonia water with a concentration of 30% for subsequent use;

[0077] S4. Mix the porous micro-nano particle suspe...

Embodiment 3

[0083] This embodiment provides a preparation process for the above-mentioned composite particles, comprising the following steps:

[0084] S1. Dissolve copper sulfate in deionized water to form a 20g / ml copper sulfate solution, stir for 2 minutes and set aside;

[0085] S2. Mix calcium carbonate and aluminum oxide porous micro-nano composite substrate with ethanol to obtain a solution of porous micro-nano particles, place it in an ultrasonic instrument for ultrasonic dispersion, the ultrasonic frequency is 30 Hz, the temperature is below 80 ° C, and the ultrasonic time is 2h, the obtained concentration is 1g / ml porous micro-nano particle suspension; in the present embodiment, the composite substrate is made of 95% calcium carbonate and 5% aluminum oxide in parts by weight;

[0086] S3. Take urea and dissolve it in deionized water, and configure it as a buffer solution with a concentration of 50% for later use (ammonium and copper ions will produce complexes that cannot be pre...

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Abstract

The invention discloses micro-nano composite particles. Nano-scale and sub-nano-scale particles smaller than the pore diameter of porous micro-nano particles are inserted into the porous micro-nano particles to form three-dimensional porous and / or spiny micro-nano composite particles; a single-pore embedded amount of the three-dimensional porous and / or spiny micro-nano composite particles is 1-100% of a pore volume. The invention also discloses six preparation processes of the above micro-nano composite particles, a liquid phase insertion method, a high-speed gas flow energy embedding method,a high-temperature reconstruction insertion method, a mechanical load embedding method, a vacuum negative pressure embedding method and a multi-rotor physical continuity modification method are included, the above methods are easy to operate, and the prepared micro-nano composite particles have good dispersion, do not easily agglomerate, and can be applied to polymers and products thereof. The particles have a good reinforcing effect in a rubber and a product thereof, show excellent mechanical properties, and also show a synergistic improving effect of reinforcing, low heat generation and wetslip resistance in a tire rubber.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a novel composite particle and its preparation process and device. Background technique [0002] At present, micro-nanoscale (10-1000nm) particles have already played an important role in modern industry, medicine, bioengineering and other fields. There are obvious surface interactions between the particles and the polymer matrix. Therefore, the performance of the material can be improved to a certain extent by selecting the appropriate particles and polymer resin matrix and using a certain material composite process. [0003] The shape of particles directly affects the cohesiveness, mechanical strength, transparency and other properties of materials, and it is directly related to the compatibility of fillers and matrix in composite materials and the effective dispersion of nanoparticles. Therefore, most studies have focused on how to obtain a homogeneous mixture, for exam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/12C08K7/26C08K7/24C08K3/22C08K3/04C08K3/36
CPCC08K3/04C08K3/041C08K3/22C08K3/36C08K7/24C08K7/26C08K9/12C08K2003/2296C08K2201/011
Inventor 王友善
Owner 哈尔滨泰铭科技有限公司
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