Micro-nano composite particle and mechanical load embedding preparation process thereof

A technology of composite particles and micro-nano composites, applied in the fields of aluminum compounds, inorganic chemistry, nanotechnology, etc., can solve the problems of small amount of fillers and inability to play their role

Active Publication Date: 2019-03-12
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 s

Method used

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  • Micro-nano composite particle and mechanical load embedding preparation process thereof
  • Micro-nano composite particle and mechanical load embedding preparation process thereof
  • Micro-nano composite particle and mechanical load embedding preparation process thereof

Examples

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Embodiment 1

[0071] In the composite particle provided by this embodiment, nanometer and nanoscale particles smaller than the pore diameter of the porous micronanoparticle are inserted into the porous micronanoparticle to form three-dimensional porous and / or thorn-like micronanocomposite particles, three-dimensionally porous and / or the single pore embedding amount of 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 composite particles means that the nanoscale and below-nanoscale particles may not be inserted, partially inserted, or fully inserted and become thorny, and even a certain degree of nanometer and below-nanoscale 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.

[0072]Specifically, the matrix of the ab...

Embodiment 2

[0075] This embodiment provides a preparation process for the above-mentioned composite particles, comprising the following steps:

[0076] S1. Dissolve zinc nitrate hexahydrate in deionized water to form a 10g / ml zinc nitrate solution, stir for 2 minutes and set aside;

[0077] 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;

[0078] S3. Take ammonia water and dissolve it in deionized water, and prepare ammonia water with a concentration of 30% for subsequent use;

[0079] S4. Mix the porous micro-nano particle suspe...

Embodiment 3

[0085] This embodiment provides a preparation process for the above-mentioned composite particles, comprising the following steps:

[0086] S1. Dissolve copper sulfate in deionized water to form a 20g / ml copper sulfate solution, stir for 2 minutes and set aside;

[0087] 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;

[0088] 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 a composite particle and a preparation process thereof. The composite particle is a particle of a nanometer and below nanometer size smaller than the pore diameter of porous micro-nano particle inserted in a porous micro-nano particle to form a three-dimensional porous and/or spiny micro-nano particle. The single-hole embedding amount of the three-dimensional porous and/orspiny micro-nano composite particle is 1-100% of the pore volume. The mechanical load embedding preparation process is easy to operate, and the prepared composite particle has good dispersibility, isnot prone to agglomerating, and can be applied to polymers and products thereof. The composite particle has a good reinforcing effect in rubber and products thereof, exerts excellent mechanical properties, and exerts a synergistic improvement effect of reinforcing, low heat generation and wet resistance performance in 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 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 a homogene...

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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