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  • synthetic
  • While fat injection augmentation has a valuable role in the enhancement of certain body areas, synthetic implants offer a permanent and assured solution to body augmentation that has the trade-off of an implanted synthetic material and a longer recovery. (eppleyplasticsurgery.com)
  • Furthermore, throughout the 1950s and the 1960s, plastic surgeons used synthetic fillers-including silicone injections received by some 50,000 women, from which developed silicone granulomas and breast hardening that required treatment by mastectomy. (wikipedia.org)
  • PTFE
  • This requirement eliminates a variety of non-elastomeric polymers that have compatibility with a wide range of chemicals, such as PTFE, polyolefins, PVDF, etc. from consideration as material for pump tubing. (wikipedia.org)
  • Implant
  • While once viewed as unusual or rare procedures, body implant surgery today is fairly common as implant materials and surgical techniques have improved. (eppleyplasticsurgery.com)
  • Play media There are three general types of breast implant devices, defined by their filler material: saline solution, silicone gel, and composite filler. (wikipedia.org)
  • The contemporary models of saline breast implant are manufactured with thicker, room-temperature vulcanized (RTV) shells made of a silicone elastomer. (wikipedia.org)
  • Nonetheless, in the 1990s, the saline breast implant was the prosthesis most common device used for breast augmentation surgery in the United States, because of the U.S. FDA's restriction against the implantation of silicone-filled breast implants outside of clinical studies. (wikipedia.org)
  • In surgical praxis, after having emplaced the empty breast implants to the implant pockets, the plastic surgeon then filled each device with saline solution, and, because the required insertion-incisions are short and small, the resultant incision-scars will be smaller and shorter than the surgical scars usual to the long incisions required for inserting pre-filled, silicone-gel implants. (wikipedia.org)
  • fluids
  • Some common applications include pumping IV fluids through an infusion device, apheresis, aggressive chemicals, high solids slurries and other materials where isolation of the product from the environment, and the environment from the product, are critical. (wikipedia.org)
  • Silicone is popular with water-based fluids, such as in bio-pharma industry, but have limited range of chemical compatibility in other industries. (wikipedia.org)
  • Meyrowitz, R, A compilation and classification of immersion media of high index of refraction, American Mineralogist 40: 398 (1955) "Silicone Fluids: Stable and Inert Media" (PDF). (wikipedia.org)
  • Polymer
  • In a platinum-based silicone cure system, also called an addition system (because the key reaction-building polymer is an "Addition reaction"), two different chemical groups (a silicone hydride and a vinyl) react in the presence of platinum (which serves as the catalyst). (wikipedia.org)
  • resistant
  • Their operating temperature range is -75 to 150 °C. The material is resistant to many chemicals (including diesel and petrol) and has good resistance to abrasion, even in severe environmental conditions. (wikipedia.org)
  • Breathability" comparison of commercial outerwear shell layers, Phil Gibson, 2000, Materials Science Team, United States Army Soldier Systems Center Water Resistant vs Waterproof - What's the Difference? (wikipedia.org)
  • In comparison to other elastomers, LSR is resistant to bacteria growth and will not stain or corrode other materials. (wikipedia.org)
  • It is waterproof and dishwasher-safe, and the material is thermally insulating, with a service temperature range between −50 and 180 °C (between -58 and 356°F or 223 and 453 K). Sugru is not resistant to isopropyl alcohol. (wikipedia.org)
  • liquid
  • One of the key advantages of using a syringe based deposition method was that a broad range of materials could be deposited, essentially any liquid, paste, gel or slurry that could be squeezed through a syringe tip. (wikipedia.org)
  • Due to the thermosetting nature of the material, liquid silicone injection molding requires special treatment, such as intensive distributive mixing, while maintaining the material at a low temperature before it is pushed into the heated cavity and vulcanized. (wikipedia.org)
  • An injecting device is responsible for pressurizing the liquid silicone to aid in the injection of the material into the pumping section of the machine. (wikipedia.org)
  • Metering units pump the two primary liquid materials, the catalyst and the base forming silicone, ensuring that the two materials maintain a constant ratio while being simultaneously released. (wikipedia.org)
  • Applications
  • Steroid molecules have a long history of incorporation into silicone elastomer materials for controlled release drug delivery applications. (bioportfolio.com)
  • The hardness range is wide, from 10-80 Shore A. Silicones have been in use in medical applications for over 30 years because of their long-term stability and biocompatibility. (chemtec.org)
  • Different applications require different materials: Elastomeric tubes maintain high flexibility even at low temperatures and meet stringent international specifications. (wikipedia.org)
  • Inflatable seals can be utilized in an array of industries like electrical, environmental and the military to assist in the following applications to: Squeeze to assist in the movement of materials Produce a mechanical holding force Stop equipment without damaging it Push objects with any degree of force Grip, hold, and lift objects while having the ability to retract the seal out of the way when deflated. (wikipedia.org)
  • biological
  • Improved SEM's now allow examination at near atmospheric pressures, so allowing examination of sensitive materials such as those of biological origin. (wikipedia.org)
  • Plastics
  • Such a system will cure on its own at room temperature and (unlike the platinum-based addition cure system) is not easily inhibited by contact with other chemicals, though the process may be affected by contact with some plastics or metals and may not take place at all if placed in contact with already-cured silicone compounds. (wikipedia.org)
  • commonly
  • citation needed] In dentistry, this material is commonly referred to as having light or heavy body depending on specific usage. (wikipedia.org)
  • surgery
  • Body implants surgery is perfectly safe, but requires a surgeon skilled in using these materials who has the knowledge and experience to operate in a variety of anatomical locations throughout the body. (eppleyplasticsurgery.com)
  • important
  • Silicone elastomers are important materials for many application areas such as automotive, electric and electronics, gaskets, domestic appliances, fabric coatings (e.g. airbags), baby bottle teats, and medical devices. (chemtec.org)
  • The overall pattern of cracking can be more important than a single crack, however, especially in the case of brittle materials like ceramics and glasses. (wikipedia.org)
  • bulk material
  • The broken crankshaft shown at right failed from a surface defect near the bulb at lower centre, the single brittle crack growing up into the bulk material by small steps, a problem known as fatigue. (wikipedia.org)
  • range
  • The high cost and closed nature of the 3D printing industry at the time limited the accessibility of the technology to the masses, the range of materials that could be used and the level of exploration that could be done by end-users. (wikipedia.org)
  • made
  • As there are no true deltoid implants made specifically for this area, this requires modifying existing body implants used for other areas, or hand-making the implants from pre-formed silicone blocks. (eppleyplasticsurgery.com)
  • Sunroof weatherstripping can also be made from silicone due to the extreme heat encountered by automobile roofs. (wikipedia.org)
  • Pre-weatherstripped doors for private homes are usually made of fiberglass or a similar material and are shipped from the factory weatherstripped. (wikipedia.org)
  • often
  • The material is often compounded with other additives (such as colorants, stabilizers, etc.) depending on the application. (wikipedia.org)
  • The material is often cross-linked through the use of electron beams, peroxides, or moisture. (wikipedia.org)
  • contamination
  • The potting material is ideal for preventing ionic contamination of the circuit, while the metal case offers the requisite mechanical strength. (google.com)
  • Common features that may cause crack initiation are inclusions, voids or empty holes in the material, contamination, and stress concentrations. (wikipedia.org)
  • develop
  • In material science research, fractography is used to develop and evaluate theoretical models of crack growth behavior. (wikipedia.org)
  • After receiving business grants, Ní Dhulchaointigh worked with retired scientists from Dow Corning and a silicone expert over a seven-year period at the materials department at Queen Mary, University of London to develop a silicone elastomer that was moldable, self-adhesive and self-curing. (wikipedia.org)