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Micro-nano composite particles and liquid phase insertion preparation process thereof

A technology of micro-nano composite and preparation process, which is applied in the direction of aluminum compounds, nanotechnology, nanotechnology, etc., and 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

AI Technical Summary

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 liquid phase insertion preparation process thereof
  • Micro-nano composite particles and liquid phase insertion preparation process thereof
  • Micro-nano composite particles and liquid phase insertion preparation process thereof

Examples

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Embodiment 1

[0071] In a micro-nano composite particle provided in this embodiment, nano-scale particles smaller than the micro-pore diameter of the porous micro-nano particle and below the nano-scale are inserted into the porous micro-nano particle to form a three-dimensional porous and / or thorn-shaped micro-nano composite particle. The single pore embedded amount of porous and / or thorn-like 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 in the figure, the state of the micro-nano composite particles is that the nano-scale and below-nano-scale particles may not be inserted or partially inserted or fully inserted and formed into thorns, and even a certain degree of nano-scale and below-nanoscale particles are attached to the surface of the substrate. figure 2The 10000x and 100000x scanning electron microscope photos of the three-dimensional porous / thorn-like micro-nano composit...

Embodiment 2

[0076] The present embodiment provides a preparation process of the above-mentioned micro-nano composite particles, comprising the following steps:

[0077] S1. get zinc nitrate hexahydrate and dissolve it in deionized water to form a zinc nitrate solution of 10 g / ml, and stir for 2 minutes for subsequent use;

[0078] S2. Mix silica and aluminum oxide porous micro-nano composite substrate with methanol to obtain a solution of porous micro-nano particles, and place it in an ultrasonic instrument for ultrasonic dispersion. The ultrasonic frequency is 60 Hz, the temperature is below 50 °C, and the ultrasonic time is For 0.1h, a porous micro-nano particle suspension with a concentration of 20g / ml is obtained; in this embodiment, the composite substrate is made of 20% silicon dioxide and 80% aluminum oxide in parts by weight;

[0079] S3. Dissolve ammonia water in deionized water and configure it into 30% concentration of ammonia water for use;

[0080] S4. Mix the porous micro-n...

Embodiment 3

[0086] The present embodiment provides a preparation process of the above-mentioned micro-nano composite particles, comprising the following steps:

[0087] S1. get copper sulfate and dissolve it in deionized water to form a copper sulfate solution of 20g / ml, stir for 2 minutes and then use it for later use;

[0088] S2. Mix calcium carbonate and aluminum oxide porous micro-nano composite substrate with ethanol to obtain a solution of porous micro-nano particles, and place it in an ultrasonic device for ultrasonic dispersion. The ultrasonic frequency is 30 Hz, the temperature is below 80 °C, and the ultrasonic time is 2h, a porous micro-nano particle suspension with a concentration of 1 g / ml was obtained; in this embodiment, the composite substrate was prepared with 95% calcium carbonate and 5% aluminum oxide in parts by weight;

[0089] S3. Dissolve urea in deionized water, and configure it as a buffer solution with a concentration of 50% for later use (ammonium root and copp...

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Abstract

The invention discloses micro-nano composite particles and a preparation process thereof. According to the micro-nano composite particles, nano-scale and sub-nano-scale particles smaller than the porediameter 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. A liquid phase method easily operates a process of inserting the nano-scale and sub-nano-scale particles, 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 wet slip resistance in a tire rubber.

Description

technical field [0001] The invention relates to the technical field of novel materials, in particular to a novel micro-nano composite particle and a preparation process and device thereof. Background technique [0002] At present, micro- and nano-scale (10-1000 nm) particles have already played an important role in modern industry, medicine, bioengineering and other fields. There are obvious surface interactions between the particles and between the particles and the polymer matrix. Therefore, selecting the appropriate particles and the polymer resin matrix and using a certain material composite process can improve the performance of the material to a certain extent. [0003] The shape of the particles directly affects the properties of the material, such as cohesion, mechanical strength, and transparency, and is directly related to the compatibility of the filler and the matrix in the composite material and the effective dispersion of nanometer and smaller particles. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/30B01J20/28B01J20/20C01B33/18C01F11/18C01F7/02B82Y30/00
CPCB01J20/08B01J20/103B01J20/14B01J20/205B01J20/28057B82Y30/00C01B33/18C01F7/021C01F11/185C01P2004/61C01P2004/62C01P2006/12C01P2006/16
Inventor 王友善
Owner 哈尔滨泰铭科技有限公司
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