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Expanded microsphere foaming agent preparation apparatus

A technology for preparing devices and expanding microspheres, applied in chemical/physical/physicochemical processes, chemical instruments and methods, chemical/physical processes, etc. Use restrictions and other issues to achieve the effect of reducing adsorption, stable expansion conditions, and stable performance

Active Publication Date: 2016-03-16
NANOSPHERE SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, its foaming device is complicated to prepare
[0007] All the above-mentioned preparation methods cannot obtain very pure expanded microspheres, so that the use of the product is limited, such as the application in artificial marble, polyester putty and artificial wood

Method used

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  • Expanded microsphere foaming agent preparation apparatus

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0026] The present invention provides a kind of expanded microsphere foaming agent preparation device, described device comprises a cylindrical expansion tank 4, and the barrel of described expansion tank 4 is double-layer structure, forms wall chamber 10, and wherein double-layer structure The gap between the two layers is 8cm; the cylinder constitutes an expansion chamber 7; the upper part of the cylinder is provided with a hot air inlet 1, and the side wall of the hot air inlet 1 is provided wit...

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Abstract

The present invention discloses an expanded microsphere foaming agent preparation apparatus, which comprises a cylindrical expansion kettle, wherein the cylinder body of the expansion kettle forms an expansion chamber, the upper portion of the cylinder body is provided with a hot wind inlet, the side wall of the hot wind inlet is provided with a material inlet, the top portion of the cylinder body is provided with a material outlet, the lower end of the material outlet extends into the expansion chamber to form a material outlet pipe, the lower end of the material outlet pipe is positioned below the position of the hot wind inlet, and the bottom portion of the cylinder body is provided with an arc convergence section. Compared with the apparatus in the prior art, the apparatus of the present invention has the following advantages that the microsphere foaming agent can be effectively prevented from caking during the expansion process, the expansion quality is improved, the purified expanded microsphere foaming agent is obtained, and the production efficiency is ensured.

Description

technical field [0001] The invention relates to a device for preparing expanded microsphere foaming agent. Background technique [0002] Microsphere blowing agents (i.e. thermally expandable microspheres) are known in the prior art and have been described in detail in US3615972, EP486080, EP566367, EP1067151, ZL201210241564.5, ZL201210241578.7, 201280073857.5 and 2012100109302.3, The documents are hereby incorporated by reference. XINENG Chemical Technology (Shanghai) Co., Ltd. can provide various microsphere blowing agents with different foaming temperatures, in two forms: dry powder and wet slurry. In this microsphere shell, the blowing agent is encapsulated in a thermoplastic shell. Upon heating, the blowing agent evaporates creating internal pressure which simultaneously results in effective foaming of the microspheres, typically about 2 to 5 times larger in diameter, as the shell softens. [0003] Unexpanded and expanded thermoplastic microspheres can be used in vari...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/00
Inventor 孙伟贤刘峰陈宝生
Owner NANOSPHERE SHANGHAI
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