Continuous preparation method of foaming material, foaming pretreatment device, and foaming device

A technology of pretreatment device and foaming material, which is applied in the fields of continuous preparation of foaming material, foaming pretreatment device and foaming device, can solve the problems of inability to realize continuous foaming, etc., and achieves low toxicity and foaming performance. Excellent, environmentally friendly effect

Active Publication Date: 2021-07-09
SHINCELL NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects that the method for foaming polymer materials in the prior art cannot realize continuous foaming, low foaming efficiency, and limited size of foamed materials.

Method used

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  • Continuous preparation method of foaming material, foaming pretreatment device, and foaming device
  • Continuous preparation method of foaming material, foaming pretreatment device, and foaming device
  • Continuous preparation method of foaming material, foaming pretreatment device, and foaming device

Examples

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Effect test

Embodiment 1

[0080] This embodiment provides a foaming pretreatment device, such as figure 1 with figure 2 As shown, it includes a transmission mechanism 1 , a limit mechanism 2 and a heating mechanism 3 . Wherein, the limiting mechanism 2 and the heating mechanism 3 are arranged inside the transmission structure.

[0081] Such as figure 1 As shown, the conveying mechanism 1 has a first conveying assembly 11 and a second conveying assembly 12 arranged oppositely, and a conveying gap for conveying the material to be foamed is reserved between the first conveying assembly 11 and the second conveying assembly 12, and the conveying mechanism 1 applying a first pressure to the material to be foamed in a vertical direction perpendicular to its transport direction. Wherein, the first conveying assembly 11 includes a first conveying press belt 111 and a first driving roller 112, and the first driving roller 112 includes first driving rollers arranged at required intervals along the conveying d...

Embodiment 2

[0090] This embodiment provides a foaming pretreatment device, such as image 3 As shown, a required number of support members 7, foam boxes 5 and steam generators 6 are included. Wherein, the foaming box 5 has a foaming inner cavity 51 , and the support member 7 is disposed in the foaming inner cavity 51 of the foaming box 5 .

[0091] Such as image 3 As shown, the steam generator 6 communicates with the foaming box 5 through pipelines, and steam with required temperature and pressure is generated in the steam generator 6, and the steam is transported to the foaming inner chamber 51 of the foaming box 5 through the pipelines. A pressure valve 61 and an intake valve 62 are sequentially arranged on the pipeline connecting the steam generator 6 and the foaming tank 5, and the pressure of the steam delivered from the steam generator 6 to the foaming tank 5 is further adjusted through the pressure valve 61 , the delivery of steam to the foaming tank 5 is controlled by the intak...

Embodiment 3

[0099] This embodiment provides a foaming device, including any foaming pretreatment device provided in Embodiment 1 or Embodiment 2.

[0100] The foaming device also includes an autoclave connected to the foaming pretreatment device, and the autoclave provides a second pressure and a dissolution temperature for dissolving the physical foaming agent in the material to be foamed. Dissolve the physical foaming agent in the material to be foamed in the autoclave to form a homogeneous system, and the material to be foamed filled with the physical foaming agent is transported to the foaming pretreatment device. was heated to the foaming temperature. The material to be foamed cannot be expanded and foamed during the process of being heated by the foaming pretreatment device, so that the material to be foamed is uniformly heated to the foaming temperature without foaming. After the foaming material is conveyed away from the foaming pretreatment device, it is foamed instantly at the ...

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Abstract

The invention discloses a continuous preparation method of a foaming material. In the first reaction zone, the second reaction zone and the third reaction zone, the foaming agent filling, heating and foaming processes are respectively carried out in the first reaction zone, the second reaction zone and the third reaction zone. The first pressure is applied to the material to be foamed in the area, so that the internal bubbles of the material to be foamed will not grow when heated, and the expansion and foaming of the material when heated unevenly is avoided. The continuous preparation of the foaming material can be realized through the transmission from the first reaction zone to the third reaction zone. The invention discloses a foaming pretreatment device implementing the above method. During the transmission process, the material to be foamed is uniformly heated to the foaming temperature under the condition that internal bubbles do not grow, and foams instantly after leaving the foaming pretreatment device. The foam material has uniform and controllable cell diameter and expansion ratio. The invention discloses a foaming device, comprising the above-mentioned foaming pretreatment device, which is suitable for continuously preparing foaming materials with uniform cell diameter and large thickness in the solid state foaming process.

Description

technical field [0001] The invention relates to the technical field of polymer foaming, in particular to a continuous preparation method for foaming materials, a foaming pretreatment device, and a foaming device. Background technique [0002] Polymer foam material is a kind of solid / gas composite material with a polymer as the matrix and a large number of bubbles inside. It is considered to be a solid / gas composite material with gas as the filler. Polymer foam materials can be widely used in airplanes, automobiles, food packaging, and sports equipment due to their advantages of material saving, low cost, good mechanics, thermal stability, low thermal conductivity, and excellent dielectric properties. , insulating materials and filter materials and other fields. [0003] Continuous extrusion and injection molding are important methods of continuous foam molding. However, the above-mentioned foaming methods need to use molten raw polymers for foaming. For common linear semi-c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C44/20B29C44/30B29C44/34B29C44/36B29C44/46B29C44/60
CPCB29C44/20B29C44/30B29C44/3415B29C44/36B29C44/46B29C44/60
Inventor 张磊
Owner SHINCELL NEW MATERIAL CO LTD
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