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A device for surface modification of powder filler and using method thereof

A technology of powder filler and feeding device, applied in fibrous fillers, chemical instruments and methods, lighting and heating equipment, etc., can solve the problems of low processing efficiency and high energy consumption, and achieve high processing efficiency, low energy consumption, and economic The effect of the process of de-feeding and powder transfer

Active Publication Date: 2017-08-25
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among the many modification methods of silica, the core key technology is how to realize the uniform distribution of modifier and silica, which requires corresponding equipment to realize. At present, reaction kettles with high temperature resistance and certain pressure resistance are mostly used. Equipment [CN202107542U, organosilicon materials, 2010(24): 37-39], fixed bed, vibrating fluidized bed [Master's thesis of Shenyang University of Technology, 2006], oven [Applied Chemical Industry, 2007(36): 703-704], Tube-type resistance furnace [Chemical Progress, 2005 (24): 1265-1268], ultrasonic or high-speed shear dispersion [CN102220036A], etc., the realization of these modification methods requires high temperature conditions, and even requires a large amount of solvent or auxiliary Agents are used to assist in realization, and it is a batch modification process, so energy consumption is high and treatment efficiency is low

Method used

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  • A device for surface modification of powder filler and using method thereof
  • A device for surface modification of powder filler and using method thereof
  • A device for surface modification of powder filler and using method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Embodiment 1, the device of powder filler surface modification

[0057] Such as figure 1 Shown is the device for surface modification of powder fillers according to the present invention, which includes powder feeding devices, liquid feeding devices, modifiers and collecting devices, and also includes drying devices for drying modified fillers, and also includes drying devices for packaging modified fillers. Added packaging equipment. The modification collection device includes the modification machine and the material collection equipment connected to it. The material metering equipment includes the powder packing material tank Ⅰ1 and the motor-driven screw metering pump Ⅰ4 connected to it, the modifier material tank Ⅱ2 and the metering pump Ⅱ3 connected to it, and the screw metering pump Ⅰ4 is connected to the metering pump Ⅱ3 , The metering pump II3 is connected with the modification machine 5. The reformer 5 is connected with the collector 6, and the collector 6 ...

Embodiment 2

[0073] Embodiment 2, adopt the device of surface modification of powder filler to modify the surface of powder filler

[0074] The method for modifying the surface of the powder filler by using the device for surface modification of the powder filler of the present invention:

[0075] 1) The precipitated silica Z-142 (produced by Rhodia) in the powder filler material tank I1 flows to the modifier 5 under the control of the frequency of 50 Hz through the screw metering pump I4, and at the same time the modifier material tank II2 The modifier hexamethyldisilazane flows through the metering pump II3 at a frequency of 10 Hz to the screw metering pump I4 and mixes with white carbon black and then flows through the modifier 5, driven by the motor of the modifier 5 at a speed of 1500 rpm. The high-speed rotation in the processing chamber of the modification machine makes hexamethyldisilazane mix evenly and adsorb on the surface of precipitated silica Z-142 during the continuous rando...

Embodiment 3

[0079] Embodiment 3, adopt the device of surface modification of powder filler to modify the surface of powder filler

[0080] The method for modifying the surface of the powder filler by using the device for surface modification of the powder filler of the present invention:

[0081] 1) The precipitated silica Z-142 in the powder packing material tank I1 flows to the modifier 5 through the screw metering pump I4 under the frequency control of 50 Hz, and the octamethylcyclotetrasilicon in the modifier material tank II2 The oxane flows through the metering pump II3 to the screw metering pump I4 at a frequency of 5 Hz, mixes with white carbon black, and then flows through the reformer 5. Driven by the motor of the reformer 5 at a speed of 1500 rpm, it flows at a high speed in the processing chamber of the reformer. Rotate, so that the hydrogen-containing silicone oil is mixed evenly during the continuous random collision with the precipitated silica Z-142 and adsorbed on the sur...

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Abstract

The invention discloses a device for powder filler surface modification and a using method thereof. The device comprises a powder feeding device, a liquid feeding device, a modification machine and a collecting device, wherein the powder feeding device comprises a powder filler tank I and a metering pump I connected with the powder filler tank I, the liquid feeding device comprises a modifier tank II and a metering pump II connected with the modifier tank II, the metering pump I is connected with the metering pump II, and the metering pump II is connected with the modification machine; the collecting device comprises a collector and a material tank III connected with a discharge outlet of the collector, and a feed inlet of the collector is connected with the modification machine. By the adoption of the device, continuous powder filler surface modification is achieved, process is simple, energy consumption is low, treatment efficiency is high, and filler modification can be conducted quickly under normal temperature and normal pressure. The device is suitable for large-scale industrial preparation of high-performance powder filler. The device has universality in powder filler surface modification.

Description

technical field [0001] The invention relates to a device for modifying the surface of a powder filler and an application method thereof, belonging to the field of material preparation. Background technique [0002] Polymer materials such as plastics, resins, and rubbers modified or reinforced with powder fillers have been more and more widely used in national life due to their excellent performance. Silica, as a typical nano-reinforcing filler, has become an indispensable component in resins and rubbers, especially in the silicone rubber industry with excellent properties such as high temperature resistance, low temperature resistance, and aging resistance. The silicone rubber reinforced with carbon black can have the mechanical properties that meet the performance requirements, so that its excellent characteristics can be reflected. According to different preparation methods, it can be divided into precipitated silica and fumed silica. Although the preparation processes of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/10C09C1/28C09C3/12C09C3/08F26B17/10
Inventor 张学忠张志杰
Owner INST OF CHEM CHINESE ACAD OF SCI
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