Medical plastic infusion bottles are produced with medical polypropylene material (plastic particles).
Advantages: medical polypropylene material can withstand autoclaving, has good mechanical properties and chemical stability and physiological degradation; by surfactant treatment, it becomes hydrophilic microporous membrane, which can be used to make artificial lungs.
Disadvantages: in the role of oxygen, heat, light is very easy to depolymerization, aging, so it must be added to the antioxidant. PP products are not easy to bond, need to be processed before bonding, and the use of special bonding agent, the device factory used in the cyclohexanone can not meet the requirements. The coloring is poor, the shrinkage rate is large (usually 1.6-2.5%), the burn resistance is poor, easy to catch fire.PP is a non-polar material, the adsorption of drugs is low.
Expanded Information:
Medical polypropylene material can be used as a medical material. p>Medical polypropylene materials can be injection molded, extruded, blow molded, or made into films.PP films are usually welded into bags using heat lamination methods, which is a more complex process than that of high-frequency-welded PVC bags.Non-PVC I.V. bags are produced using fully automated equipment to ensure process stability and reliable quality.
The use of high-speed injection molding minimizes internal pressure. If defects appear on the surface of the product, then low-speed injection molding at higher temperatures should be used.
Baidu Encyclopedia-Medical Polypropylene