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Preparation method of plasticized specimen

A production method and specimen technology, which is applied in the field of specimen processing, can solve the problems that plasticized specimens are prone to mildew and other problems, and achieve the effects of significant anti-mold effect, prolonging the use time, and improving the anti-mold effect

Inactive Publication Date: 2020-04-28
郑州国之正生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a method for making plasticized specimens, which solves the problem that the existing plasticized specimens are prone to mildew during storage

Method used

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  • Preparation method of plasticized specimen
  • Preparation method of plasticized specimen

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Experimental program
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Embodiment 1

[0025] The invention provides a method for making a plasticized specimen, comprising the following steps:

[0026] (1) In parts by weight, take 100 parts of hydroxyl-terminated polydimethylsiloxane, add 3.0 parts of dibutyltin and 0.5 parts of tributyltin, stir evenly, and use it as glue A;

[0027] (2) Place the dehydrated and degreased specimen in glue A in the vacuum pressure chamber, the pressure of the vacuum pressure chamber is 0.8-1.2kPa, and let it stand for 10 days to obtain the impregnated specimen;

[0028] (3) Take out the specimen, put it in a warm room at 35-45°C and fumigate it with n-silyl ethyl ester steam for 4 days, so that the specimen is completely cured.

[0029] (4) Trim and tidy the excess silica gel on the cured bone specimen.

[0030] The plasticized specimen prepared in this embodiment is carried out anti-mold test, compared with the comparative example without adding dibutyltin and tributyltin, the results are as follows:

[0031] tempera...

Embodiment 2

[0034] The invention provides a method for making a plasticized specimen, comprising the following steps:

[0035] (1) In parts by weight, take 100 parts of hydroxyl-terminated polydimethylsiloxane, add 2.5 parts of dibutyltin and 0.5 parts of tributyltin, stir evenly, and use it as glue A;

[0036] (2) Place the dehydrated and degreased specimen in glue A in the vacuum pressure chamber, the pressure of the vacuum pressure chamber is 0.8-1.2kPa, and let it stand for 8 days to obtain the impregnated specimen;

[0037] (3) Take out the specimen, put it in a warm room at 35-45°C and fumigate it with n-silane ethyl ester steam for 5 days, so that the specimen is completely cured.

[0038] (4) Trim and tidy the excess silica gel on the cured bone specimen.

[0039] The plasticized specimen prepared in this embodiment is carried out anti-mold test, compared with the comparative example without adding dibutyltin and tributyltin, the results are as follows:

[0040] tempera...

Embodiment 3

[0043] The invention provides a method for making a plasticized specimen, comprising the following steps:

[0044] (1) In parts by weight, take 100 parts of hydroxyl-terminated polydimethylsiloxane, add 4.5 parts of dibutyltin and 0.5 parts of tributyltin, stir evenly, and use it as glue A;

[0045] (2) Place the dehydrated and degreased specimen in glue A in the vacuum pressure chamber, the pressure of the vacuum pressure chamber is 0.8-1.2kPa, and let it stand for 12 days to obtain the impregnated specimen;

[0046] (3) Take out the specimen, put it in a warm room at 35-45°C and fumigate it with n-silane ethyl ester steam for 3 days, so that the specimen is completely cured.

[0047] (4) Trim and tidy the excess silica gel on the cured bone specimen.

[0048] The plasticized specimen prepared in this embodiment is carried out anti-mold test, compared with the comparative example without adding dibutyltin and tributyltin, the results are as follows:

[0049] temper...

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Abstract

The invention discloses a preparation method of a plasticized specimen, and belongs to the technical field of specimen treatment. The method comprises the following steps: weighing 100 parts by weightof silicone rubber, adding 3-5 parts by weight of catalysts, and uniformly stirring to obtain rubber A; putting a dehydrated and degreased specimen into the rubber A disposed in a vacuum pressure bin, standing for 8-12 days to obtain an impregnated specimen; taking out the specimen, putting the specimen into a warm room at 35-45 DEG C, and fumigating the specimen with curing agent steam for 3-5 days so that the specimen is completely cured. After the catalysts which are dibutyltin and tributyltin are added into the silicone rubber, the specimen mould-proof effect is remarkable, and the service life of the specimen is effectively prolonged. The preparation method is simple to operate and high in feasibility, and has the advantages of environmental protection, no toxicity, no odor, no irritation and the like; the plasticized specimen is easy to preserve and long in preservation time.

Description

technical field [0001] The invention relates to the technical field of specimen processing, in particular to a method for making plasticized specimens. Background technique [0002] Plastination is a special technique that can preserve tissue like a living body. It uses a vacuum process to infiltrate biological specimens with active polymers such as silicone rubber and epoxy resin. The type of polymer used determines the optical properties (transparent or opaque) and mechanical properties of the soaked specimens. performance (soft and tough). Plastination technology can keep the surface of the specimen in its original state and preserve the cell structure at the microscope level. The plasticized specimen is dry, odorless, durable, can be stored for a long time, and is easy to learn. Production includes the following four steps: [0003] (1) Fixation: Formalin is mainly used for fixation. [0004] (2) Dehydration and degreasing: use acetone as a dehydrating agent, degreas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N1/00
CPCA01N1/00
Inventor 郭中献郑之波
Owner 郑州国之正生物科技有限公司
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