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Russia To Study New Generation Of Silicone Adsorbent For Medical Use

2010/7/14 16:08:00 56

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Modern biological engineering and medical chemistry have a growing demand for composite materials. In this field, supramolecular and multi component materials are very needed. It is a promising career to study the biocompatible composite surgical adsorbent.

This material can adsorb microorganisms and their toxins, decompose products of cells, clean wounds, eliminate inflammation, without causing side effects and promoting wound healing.

Russia has used active carbon fiber materials (twill, knitted fabrics, warp knitted fabrics) to treat surgical contaminated wounds and burn wounds, and developed biodegradable porous membrane materials containing 2,5- mannose. Currently, bioactive medical silicone applicator adsorbent is being developed.

In order to make composite

Silicone material

Using Russian A-380 high dispersion silicon filler, the polymerization modifier can be divided into two kinds, one is polysaccharide 2,5- mannose and the other is dextrose.

A porous silicon structure is formed in the presence of polymerizing modifier.

The surface density, pore volume and pore size of 2,5- mannose silica adsorbent and glucose dextrose adsorbent were studied.

The process of the synthesis of 2,5- mannose silica adsorbent is based on the beginning of the formation of the hydrogel from 22 to 2 degrees centigrade by 24 hours.

The next stage of dehydration is accompanied by a decrease in the size of hydrogels and the formation of hydrogels.

The hydrogel was treated at 105 degree heat for 2 hours to become dry colloid. In the final stage, the dispersing method was used to complete the synthesis of the adsorbent, and the highly dispersed debris appeared. The particle size was 80-120 microns.

Supplement:

Russian government

Decision No. 110th, the import of 8 major textile machinery, including the whole machine and its spare parts, is exempted.

Import value-added tax

。

The specific varieties are as follows:

1. Automatic bag picking machine, automatic feeding machine, opening machine and automatic milk adding machine.

2. Rotor spinning machine, spinning cup spinning machine, self twisting spinning machine.

3. Ring twisting machine.

4. Automatic winding machine

5. Batch warping machine, sizing machine, warp knitting machine and knotting machine.

6, 18 and 20 needle double needle round knitting machines.

7, round knitting hosiery machine with needle diameter larger than 165mm.

8, knitting flat knitting machine, lace loom, flower net loom, automatic embroidery machine, automatic quilting machine.

In addition, the Russian Federation of textile entrepreneurs, said in the relevant report, the state continued to support textile enterprises (especially small and medium-sized enterprises) in technical pformation, the first is to give discount loans, for example, at present, the Russian central bank granted loans to textile enterprises as the lowest interest rate in the past twenty years (8.75%) in Russian Federal history, while the loan interest rate granted by Russian commercial banks is much higher than this.

On the other hand, the above Russian textile machinery, which is not produced by Russia, is subject to import tariff adjustment, which was approved in March 2, 2010.

The Russian Federation of light textile entrepreneurs has reported to the Russian President on supporting the technological pformation of the industry and producing a new generation of products in the factory.