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  • Medical Device Link . Fundamentals of Structural Adhesives for Device Assembly Selecting the proper adhesive and curing process can be crucial to developing safe and effective devices.
    individually. A summary of bonding processes and the trade-offs associated with each are shown below. Table I. Summary of trade-offs for common joining methods and structural adhesive curing processes. Generally, two-part adhesive systems are made up of a base polymer resin and a catalyst. When
  • Medical Device Link .
    suggests, becomes set into a given network, normally through the action of a catalyst heat, radiation, or a combination of these factors during the process of cross-linking. As the name suggests, cross-linking is the process of forming cross-links between linear polymer molecules (curing is another term
  • Medical Device Link .
    , and silicone. Interference has been reported in the curing stages of implant devices, dental polyvinyl siloxane impression materials, and orthopedic adhesives.12 It has been reported that residual sulfur on gloves resulting from its excessive use as a vulcanizing agent, or its presence as a by-product
  • Epoxy and Silicone Interactions
    curing agents are frequently used in epoxy hardener systems. These. curing agents can differ in composition, aliphatic or aromatic; as well as functionality via. mono, di- or tri-amine. Platinum catalysts, used in most addition cure silicones, are very susceptible to. poisoning from amine-based
  • Medical Device Link .
    with a chlorine atom on the benzene ring. As deposited, parylene is complete, requiring no further curing, cross-linking, or other processes to achieve its inherent properties. Parylene 's deposition process facilitates the precise control of coating thickness and ultimately its ability to serve both
  • Practical Approach to Matching Fluorosilicone Compound Technology to Fabrication Processes and Equipment
    and VMQ type. silicones [see Figure 5], platinum (addition) cure is another option for fluorosilicones. In most. applications, more than one curing agent will fit a particular process, and in some cases, there may. be benefits to blending two types of these curing agents in a single compound. The choice
  • Medical Device Link . Compatibility of Medical Devices and Materials with Low-Temperature Hydrogen Peroxide Gas Plasma A new sterilization technique safely treated about 95% of the materials tested in an average of 75 minutes.
    (such as Epotek 353ND or Shell 828 resin with EMI-24 catalyst). Imidazole curing agents cure largely by homopolymerization, with relatively low proportions of curing agent to resin, leading to relatively low levels of amine cross-linkages. Homopolymerization operates through catalytic opening
  • Modeling the Vulcanization Process of HCR and Liquid Silicone Rubber
    rubber were. mixed with a Mixpac (DMA 50) 1:1 static mixer.  − E2 . k = a exp. using a Kenics mixing chamber. A 1:10 ratio of. (6). 2. 2. . .  RT . Sylgard 184 curing agent to elastomer was used. for the PDMS. where ai is the fitted rate coefficient, Ei is the. activation energy, R is the universal
  • Medical Device Link .
    industry chooses a material for a specific application, material properties are not the only deciding factor. Manufacturers must also examine how the material will be used in a production setting. Processing limitations or vulcanization and curing by-products can render a chosen material ineffective
  • Medical Device Link . Bonding Elastomers with Adhesives
    formulation proves insufficient for an application. Bond strength may be further improved by employing plastic primers or specific rubber-curing processes appropriate for different adhesive/elastomer combinations. The data provided in this article should help manufacturers to determine whether

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