Why is ABS often used for blister of medical device housing?
Why is ABS often used for blister of medical device housing? We have to first understand the performance characteristics of ABS blister:
1. ABS is synthesized from three chemical monomers: acrylonitrile, butadiene and styrene. The characteristics of these three components make ABS have good comprehensive mechanical properties. Acrylonitrile makes ABS have good chemical corrosion resistance and surface hardness, butadiene makes ABS tough, styrene makes it have good processability and dyeing properties.
2. The characteristics of ABS mainly depend on the ratio of the three monomers and the molecular structure in the two phases. This allows for great flexibility in the design of abs blister products, and has resulted in hundreds of different quality ABS materials on the market.
3, ABS material has super easy processing, good appearance characteristics, low creep and excellent dimensional stability.
4, all kinds of ABS materials are easy to accept commonly used secondary processing. Such as machining, bonding, fastening, electroplating, painting, ultrasonic welding.
5, ABS has excellent impact strength, and does not decline at low temperatures. So ABS suction has its own good mechanical strength. Hardness and certain wear resistance.
6, ABS has good cold resistance, oil resistance, water resistance, chemical stability, water, inorganic salts, alkali, acid almost no effect on ABS, in ketones, aldehydes, esters, chlorinated hydrocarbons will dissolve or form emulsion, insoluble in most alcohols and hydrocarbon solvents. However, long-term contact with hydrocarbons will soften and swell.
In general, it is because ABS has certain rigidity, hardness, impact and chemical resistance, radiation resistance and ethylene oxide disinfection resistance. The large medical device shell is relatively large, so the material used to make it needs to have good processability and the working environment where it is located is more special. Therefore, it should have impact resistance and chemical resistance, radiation resistance and ethylene oxide disinfection, which is used to carry relatively heavy things, so the abs thick plate blister has a certain rigidity and hardness.