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A kind of organosilicon separating gel and its preparation method and application

A silicone and separation gel technology, applied in material inspection products, biological testing, etc., can solve problems such as the impact of test results, achieve good physiological inertia, reduce medical waste, and reduce the chance of virus transmission.

Active Publication Date: 2011-12-14
广州标美药用辅料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are no strict requirements on low molecular weight, which will affect the test results

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Take 25 parts of 350cP, 40 parts of 10000cP, 10 parts of 10000000cP linear silicone polymer, 5 parts of 100cP hydroxyl silicone oil, 20 parts of fumed silica treated with hexamethyldisilazane, 1 part of silane joint agent. After mixing the above raw materials evenly, raise the temperature to 60°C and keep it warm for 9 hours, then raise the temperature to 180°C, remove low molecules under negative pressure for 1 hour, control the vacuum degree at -0.09mpa, and obtain the separating gel after cooling. When testing, add about 1.5g of separation gel to the prepared blood collection tube, add blood into the blood collection tube, centrifuge at 2000G for 5min after coagulation, after separation, the separation gel is between serum and plasma, put it upside down, and lay it flat Serum and plasma can no longer be mixed.

Embodiment 2

[0030] Take 10 parts of 50cP, 30 parts of 1000cP, 30 parts of 10000000cP linear silicone polymer, 7 parts of 100cP hydroxyl silicone oil, and 18 parts of fumed silica treated with hexamethyldisilazane and methylchlorosilane for hydrophobic treatment , 3 parts of silane coupling agent. After the above raw materials were mixed evenly, the temperature was raised to 90°C for 11 hours, and then the temperature was raised to 155°C, and the low molecular weight was removed by negative pressure for 4 hours. The vacuum degree was controlled at -0.09mpa, and the separation gel was obtained after cooling. When testing, add about 1.5g of separation gel to the prepared blood collection tube, add blood into the blood collection tube, centrifuge at 1500G for 10 minutes after coagulation, after separation, the separation gel is between serum and plasma, put it upside down, and lay it flat Serum and plasma can no longer be mixed.

Embodiment 3

[0032]Take 50 parts of 1000cp, 19 parts of 10000000cp linear silicone polymer, 15 parts of 100cp hydroxyl silicone oil, and 15 parts of hydrophobization with hexamethyldisilazane, tetramethyldivinyldisilazane and methylchlorosilane Treated fumed silica, 6 parts of silane coupling agent. After the above raw materials were mixed evenly, the temperature was raised to 116°C for 5 hours, and then the temperature was raised to 120°C, and the low molecular weight was removed for 6 hours under negative pressure. The vacuum degree was controlled at -0.09mpa, and the separation gel was obtained after cooling. When testing, add about 1.5g of separation gel to the prepared blood collection tube, add blood into the blood collection tube, centrifuge at 1000G for 5min after coagulation, after separation, the separation gel is between serum and plasma, put it upside down, and lay it flat Serum and plasma can no longer be mixed.

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Abstract

The invention discloses an organosilicon separating gel, its preparation method and application. The silicone separating gel is made of the following components in parts by weight: 54-82 parts of organopolysiloxane; 4-15 parts of hydroxyl silicone oil; 10- 25 parts; 1-6 parts of silane coupling agent. The preparation method of the organosilicon separating gel is to mix the components uniformly, heat up to 60-116°C, stir and keep warm for 5-12 hours, and then vacuumize at 120-180°C for 1-6 hours to obtain the organosilicon separating gel. glue. The application of the organosilicon separating gel is to prepare a rapid blood collection tube with serum separating gel. The organosilicon separating gel provided by the invention is hygienic, safe, non-toxic, strong in isolation, good in liquid sealing, and has superior thixotropic performance. The invention provides a method for preparing organic silicon separating gel, which has simple process, mild and controllable preparation conditions, and is easy to popularize.

Description

technical field [0001] The invention relates to a preparation method and application of organic silicon separating gel. Background technique [0002] Health has always been the ideal pursued by human beings, and today more and more people are tempted by their own health conditions. Now many people in the society are in a state of sub-health, how can we help human beings to regulate their health? The development of medical science provides a convenient door for human beings. The medical industry is an important industry related to the national economy and the people's livelihood. The country has proved its importance through a series of laws and regulations. In recent years, due to the development of new technologies, some new technologies and methods have gradually been widely used. Vacuum blood collection tube is a new mainstream method for rapid blood collection and testing in recent years. Blood testing is extremely important for blood collection and protection before...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08K9/06G01N33/49B01D43/00
Inventor 王海鹏黄振宏
Owner 广州标美药用辅料有限公司
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