What are two types of medical silicone rubber in application?

2020-03-10 16:20:07

With the deepening recognition of medical materials used in medical devices industry, the unique special properties of liquid silicone rubber expand its application range. With these characteristics being more widely known, new applications and expanding markets are driving the application of liquid silicone rubber in medical devices more widely.

Silicon, the basic component of silicon materials, is a common and easily accessible element on earth. Liquid silicone rubber is easy to be made into complex shape and chemical inertness. Its practicability and excellent characteristics make it very suitable for medical equipment from the beginning.

In the current production process of silica gel products, the products produced by the phenomenon of mold sticking are dirty, so it is inevitable to clean the mold during production, and the phenomenon of mold sticking is inevitable, so the mold stripping water will be used in production. If we do not use the mold stripping water in the production process, it is likely to lead to the sticking debris on the molding machine tool, which will lead to the defective products in the second production How to deal with the demoulding.

First of all, mold release agent must be used, and the silicone oil mold release agent used by many manufacturers has good heat resistance and surface tension, so it can be used many times in the production process, and many silicone rubber materials can be demoulded. Generally, the first product in the production will be demoulded once, if there is no problem, it can be maintained The mold release agent can be used for several hours, and the quality of the mold release agent can be divided into two parts. Now, silicone oil mold release agent is used by silicone oil manufacturers. The main characteristics of silicone oil mold release agent for molding production are that it will not corrode the mold, the surface of the product is smooth, and it will not affect the processing procedure of the later stage. The effect of mold release is also good, the dosage used is small, and the price is low Cost is not high, so many silicone products manufacturers choose to use silicone oil mold release agent!

In terms of medical use, silica gel must be tested for biocompatibility and comply with FDA regulations. The application of medical silica gel can be divided into two categories: those with time limit and those without time limit. Usually limited for short-term transplantation, unlimited for long-term transplantation.

Silicone rubber is elastic, durable, transparent, UV light resistant and tension resistant. Unlike the traditional rubber, liquid silicone rubber can withstand extreme temperature, from - 55 ℃ to 200 ℃ without denaturation. Because of this characteristic, the instruments made of silicone rubber can be sterilized by high pressure.

At present, the medical equipment industry shows a preference for liquid silicone rubber medical materials. Because it is different from the rubber that makes some users allergic, liquid silicone rubber has low sensitivity. Liquid silica gel does not contain phthalate in PVC, which has been found to disrupt the endocrine system and damage the reproductive and nervous systems.