Cast agent for blood vessel of no-solvent type epoxy resin

Abstract

This invention discloses a solvent-free epoxy resin blood vessel molding agent, which is composed of: E-52D epoxy resin (viscosity is 1.1-1.4 Pa.s) 100 parts, diethylenetriamine curing agent 12-20 parts, butyl phosphate plasticizer 10-20 parts, perchloroethylene softening agent 8-10 parts, and red oil paint colorant 0.3 part. This invention has such advantages as simple process and easy operation. After mixing for 2-3 h, the viscosity of the system retains unchanged, which can facilitate smooth molding operation. The molding agent can be cured within 24 h, which ensures rapid molding of blood vessel. Since volatile organic solvent is not contained, second injection is not needed, and cavity or deformation of molded blood vessel does not occur. The molding agent can be used to produce 3-D images of blood vessel.

Description

technical field [0001] The invention relates to a solvent-free epoxy resin blood vessel casting agent. Background technique [0002] Vascular casting is a specialized technique in the production of anatomical specimens, which is widely used in the production of vascular and venous models of various animals and human organs. It has high application value in medical teaching and scientific research and microvicker research. In recent years, with the continuous strengthening of the application of computers in medicine, it has gradually become an important method for the study of blood vessels to embedding and slicing casted blood vessels, then scanning them, and synthesizing three-dimensional images of blood vessels and veins by computer. [0003] Commonly used casting agents for vascular casting are mostly formed by solvents such as dental powder, ABS engineering plastics, perchlorethylene and ethyl acetate. However, the currently used dental powder and perchlorethylene itse...

AI Technical Summary

Problems solved by technology

However, because the viscosity of the system is too high and the curing speed is too fast, casting cannot be realized. A certain amount of ethyl acetate solvent must be added for dilution to reduce the viscosity of the system and prolong the curing time.

The volatilization of the solvent will lead to the formation of cavities inside the cast blood vessels, which is difficult to meet the needs of slice scanning when making computer 3D images

At the same time, when the solvent volatilizes, the curing reaction of the system is too intense, which can easily cause deformation of blood vessels, resulting in deviation of the casting mold