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Medical field-Silicone medical silicone.
Time：
2024-09-14
National medical grade silica gel testing standards of silica gel, the use of high-purity two-component room temperature silica gel as the basic raw material, catalyzed by platinum or peroxide into the medical silica gel, generally divided into in vivo, in vitro two categories.
Features:
①In vivo: Non-toxic, tasteless, physiologically inert, resistant to biological aging, very small reaction to human tissue, will not cause a foreign body reaction after the value of human tissue, no inflammation of the surrounding tissue.
②In vitro: Non-toxic, non-yellowing at room temperature, do not spray frost, do not spit white, do not fade, no scale in the water for a long time, no odor, temperature -60-270 degrees, weak acid and alkali resistance (acid and alkali resistance of different materials with different strengths), ozone resistance, corrosion, aging resistance, good tear resistance, wear-resistant, high resilience, insulation resistance voltage of 35,000 volts or more.
Chemical Composition:
Chemical formula SiO2·xH2O or mSiO2·nH2O, also known as oxidized silica gel or silicate gel. Silica gel becomes colorless transparent or milky white particles. Usually contains about 3~7% water. It has a porous structure. Strong adsorption, moisture absorption can reach about 40%. Mainly used for gas drying, gas absorption, liquid dehydration, catalyst, catalyst carrier, and used as gas chromatography analysis reagent, thin layer chromatography analysis reagent, column chromatography packing. In order to indicate the size of the degree of water absorption, the market sale of color-changing silica gel is the silicate gel with cobalt chloride solution soaking, drying and activation of a desiccant produced. It is made by reacting sodium silicate solution (water glass) with hydrochloric acid or dilute sulfuric acid, gelling, washing, drying, and drying.
Range of Application:
Silicone rubber products in the medical field can be described as a very wide range of applications, it can be used in brain surgery, ENT, thoracic surgery, abdominal surgery, internal medicine, urology, orthopedics and plastic surgery, and other various fields, such as artificial skull, artificial nose, gastric tubes, artificial peritoneum, artificial knuckles, artificial skin, soft tissue expander, artificial breasts and so on. Including human implantation, corrosive substance transfer, elastic vapor transport, acid processing, hot oil circulation, solution processing, high temperature air and monomer transport in the plastics manufacturing industry.
One of the medical silicone gel is a special silicone pressure-sensitive adhesive application. Its typical features: cured jelly gel, self-adhesive, high environmental grade. Available in medical silicone gel scar patch, no scar bra, massage patch, SPA mask and other products.
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