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General standard for medical silicone rubber
First, medical grade silicone rubber is the basic materials for the preparation of artificial organs, medical equipment and accessories, all kinds of medical tubing, sheet, profiles, rubber can be divided into rubber and rubber.
1 rubber is composed of eight methyl siloxane ring four, four methyl four vinylcyclosiloxanes chain stopper four and two methyl vinyl siloxane copolymer two in the presence of a catalyst and become, the appearance of clear vinyl content of 0.07% ~ 0.20% (Moore), dissolved in toluene soluble, molecular weight 400 thousand ~ 800 thousand, volatility is less than or equal to 1%.
2 mix refers to the rubber in the mixing machine and adding silica additives by mixing homogeneous products, the typical properties of vulcanized after the tensile strength is more than 7.0MPa, elongation is greater than or equal to 600%, the tear strength is more than 30kN/m, permanent deformation is less than or equal to 10%, hardness (shore A) 40 ~ 60 degrees,
Secondly, the characteristics of medical silicone tube:
1 high transparency, resistance to yellow Xinghao, product appearance and high transparency, became old.
2 high tear strength, suitable for the production of high strength requirements of the product.
Finally, the application of medical silicone tube:
For example: 1 food contact beverage conveying pipe, including drinking water; baby bottle; various miscellaneous items; parts, rolling, rolling and conveyor belt.
2 medicinal for example: the use of liquid and soluble drug circulation pipe; medical conveyor belt, etc..
For example: for 3 medical extracorporeal circulation pipe; oxygen tube; seal syringe; respiratory mask.
This paper is from Shenzhen,, id=612?
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