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Process for production of porous reticulated composite materials

A technology of porous composite materials and matrix materials, which is applied in the field of porous network composite materials and their preparation, and can solve the problems of inability to produce porous composite materials and high cost

Inactive Publication Date: 2008-08-06
CINVENTION AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] An additional disadvantage of the methods described above is that the sintering process is usually carried out at high temperatures, therefore, porous composites of polymer and inorganic and / or organic components cannot be produced if the sintering temperature is higher than the melting point of the polymer component
These methods therefore also have the particular disadvantage that the material is processed in a cost-intensive molding process into a stable two-dimensional or three-dimensional structure and, due to the brittle nature of the material, may often only be of limited shape
[0009] Furthermore, material processing according to conventional methods often requires several post-processing process steps, and sintering methods are inherently limited to inorganic composite materials due to the conditions that must be employed

Method used

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  • Process for production of porous reticulated composite materials
  • Process for production of porous reticulated composite materials
  • Process for production of porous reticulated composite materials

Examples

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Effect test

Embodiment 1

[0207] A homogeneous dispersion of soot, lamp black (Lamp-Black, Degussa, Germany) with a primary particle size of 90-120 nm and a phenoxy resin (Beckopox(R) EP 401, Cytec) was prepared. First, a mother liquor of methyl ethyl ketone (31 g), 3.1 g of Beckopox(R) EP 401 and 0.4 g of glycerol (crosslinker, SigmaAldrich) was prepared. By 1.65g lamp black and 1.65g dispersing additive (Disperbyk  2150, block copolymer solution in 2-methoxy-1-methylethyl acetate, Byk-Chemie, Germany) by adding part of methyl ethyl ketone / Beckopox  EP 401 mother liquor to prepare soot paste. Subsequently, using Pentraulik  The dissolver converts the paste into a dispersion by adding the rest of the mother liquor for 15 minutes to obtain a homogeneous dispersion. The dispersion has a total solids content of about 3.5%, determined by means of a moisture measuring device (Sartorius MA 50). The particle size distribution in the dispersion is D50 = 150 nm, determined by means of a laser diffractome...

Embodiment 2

[0210] A homogeneous dispersion of soot, lamp black (Degussa, Germany) with a primary particle size of 90-120 nm (Degussa, Germany) and phenoxy resin (Beckopox(R) EP 401, Cytec) was prepared as described in Example 1 . Instead of 1.65 g of lamp black, only 0.9 g of lamp black was used, and 0.75 g of a fullerene mixture (Nanom Mix, FCC) was used. The amounts of all other ingredients were the same as those used in Example 1 above. The resulting dispersion had a total solids content of about 3.4%, determined as described in Example 1. And the particle size distribution in the dispersion is D50 = 1 μm.

[0211] The resulting dispersion is 3.8g / m 2The average surface area weight is sprayed onto a steel substrate and dried with hot air for 2 minutes. The samples were heat treated as in Example 1 above. The resulting porous composite-coated steel substrates were examined using scanning electron microscopy. Figure 2 below shows a 20,000X magnified SEM photograph of the resulting ...

Embodiment 3

[0213] The samples prepared in Example 2 were treated at 35°C for 30 minutes in an acetone and ultrasonic bath. The sample was then dried in a conventional convection oven at 200°C for 2 hours. The SEM photograph in Figure 3 shows the sponge-like composite coating at 20,000X magnification.

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Abstract

The present invention relates to porous reticulated composite materials and methods for the production thereof. Particularly, the present invention relates to a process for the production of porous composite materials comprising the steps of providing a mixture capable of flowing, comprising at least one inorganic and / or organic reticulating agent; at least one matrix material selected from polymers or polymer mixtures; and solidifying the liquid mixture.

Description

technical field [0001] The invention relates to a porous network composite material and a preparation method thereof. In particular, the present invention relates to a method for preparing a porous composite material, said method comprising the steps of providing a flowable mixture and solidifying a liquid mixture, said mixture comprising at least one inorganic and / or organic reticulating agent, at least A matrix material selected from polymers or polymer blends. Background technique [0002] Porous materials can be important in a variety of industrial applications, such as membranes for filtering and separating liquid mixtures, in sensors, electrodes, dielectric materials in microelectronics, in biomaterials for implantable materials or drug carriers. In medical technology, for capacitors, for catalytic surfaces, etc. [0003] Furthermore, composite materials can be important in mechanical construction, for example in aeronautical or automotive engineering, in medical eng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/00A61L27/56A61L31/14
CPCA61L27/34B05D5/00C08J9/26C08J3/20C08J3/24A61L27/446A61L27/56Y10T428/249953B05D7/16C08J9/28B05D1/60A61L31/14C08J9/00C08J9/22
Inventor 苏海尔·阿斯加里
Owner CINVENTION AG
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