Micro-nano composite particle and vacuum negative pressure embedded preparation process thereof

A technology of micro-nano composite and preparation process, which is applied in the direction of aluminum compounds, nanotechnology, calcium/strontium/barium compounds, etc., and can solve the problems of small amount of fillers and inability to play their roles

Active Publication Date: 2019-03-08
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 to...

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  • Micro-nano composite particle and vacuum negative pressure embedded preparation process thereof
  • Micro-nano composite particle and vacuum negative pressure embedded preparation process thereof
  • Micro-nano composite particle and vacuum negative pressure embedded preparation process thereof

Examples

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Embodiment 1

[0070] In the micro-nano composite particle provided in this embodiment, nanometer and below-nano-scale particles smaller than the diameter of the pores of the porous micro-nano particle are inserted into the porous micro-nano particle to form three-dimensional porous and / or thorn-like micro-nano composite particles, three-dimensional The single pore embedding amount of porous and / or spiny 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 state composition of micro-nano composite particles means that the nanoscale and below-nano scale particles may not be inserted, partially inserted, or fully inserted and become thorny, and even a certain degree of nanometer and below-nano scale particles are attached to the surface of the matrix. figure 2 It is 10000x and 100000x scanning electron micrographs of three-dimensional porous / thorny micro-nano composite particles. ...

Embodiment 2

[0074] This embodiment provides a preparation process of the above-mentioned micro-nano composite particles, comprising the following steps:

[0075] S1. Dissolve zinc nitrate hexahydrate in deionized water to form a 10g / ml zinc nitrate solution, stir for 2 minutes and set aside;

[0076] 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;

[0077] S3. Take ammonia water and dissolve it in deionized water, and prepare ammonia water with a concentration of 30% for subsequent use;

[0078] S4. Mix the porous micro-nano part...

Embodiment 3

[0084] This embodiment provides a preparation process of the above-mentioned micro-nano composite particles, comprising the following steps:

[0085] S1. Dissolve copper sulfate in deionized water to form a 20g / ml copper sulfate solution, stir for 2 minutes and set aside;

[0086] 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;

[0087] 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 can...

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Abstract

The invention discloses a micro-nano composite particle and a preparation process thereof. The micro-nano composite particle is characterized in that nanometer or below nanometer size particles in thesize smaller than the micropore diameter of porous micro-nano particles are inserted into the porous micro-nano particles, so that three-dimensional porous and/or spiny micro-nano composite particlesare formed; the single hole embedded quantity of the three-dimensional porous and/or spiny micro-nano composite particles is 1 to 100 percent of the hole volume. The vacuum negative pressure embeddednanometer or below nanometer size particle process is easy to operate; the prepared micro-nano composite particle has good dispersibility; the glomeration cannot easily occur; the micro-nano composite particle can be applied to polymers and polymer products. A good reinforcing effect is achieved in rubber and rubber products; excellent mechanical property is shown; the synergistic improvement effect on reinforcement, low heat generation and wet-skidding resistant performance is shown in tire rubber.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a novel micro-nano 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 is directly related to the compatibility of fillers and matrix in composite materials and the effective dispersion of nanometer and sub-nanometer particles. Therefore, most studies have focused on how to obtain...

Claims

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Application Information

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IPC IPC(8): C01B33/18C01F7/02C01F11/18B82Y40/00
CPCB82Y40/00C01B33/18C01F7/021C01F11/185C01P2004/03C01P2004/62C01P2004/64
Inventor 王友善
Owner 哈尔滨泰铭科技有限公司
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