Mr. Chan
Leave a message(1) Since most toxic monomers and oligomers. Medical plastics are strictly limited to the residual of the foregoing.
(2) Plastic molding in the polymerization process inevitably comes into contact with the reactor, metal catalysts. Which often contain trace metal ions, according to the medical plastics GB. The requirement for zinc, lead, cadmium, copper, barium, tin. Other metal ions residual cases are clearly defined.
(3) Requirements for medical plastics molding with high purity. Narrow molecular weight distribution.
(4) Chinese plastic molding processing or modified in the process need to add various additives. Such as the amount of plasticizer in PVC medical products often as high as 30-60%. Thus required to maximize the use of toxic chemicals. To prevent long-term use or reduce the precipitation of additives to affect product performance and treatment.
(5) In accordance with the requirements of medical plastic. We often need to make products with surface hydrophilicity. Anti-radiation sterilization, and other functions.
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