Whitepapers

Medical device companies continue to support the healthcare community by distinguishing models, sizes and improving the aesthetics of the device with the addition of color. Color in medical devices offers a number of benefits in marketing the device. Adding color can help differentiate the product in a competitive marketplace, and...

Medical device companies continue to support the healthcare community by distinguishing models, sizes and improving the aesthetics of the device with the addition of color. Color in medical devices offers a number of benefits in marketing the device. Adding color can help differentiate the product in a competitive marketplace, and the addition of corporate colors can also create a strong tie to the company's brand.

Today the technological progress of modern military aircraft design has been greatly influenced by the use of advanced composite materials. These materials permit design of lighter stronger more flexible aircraft yet offers a new set of challenges in design, production and quality.

Today the technological progress of modern military aircraft design has been greatly influenced by the use of advanced composite materials. These materials permit design of lighter stronger more flexible aircraft yet offers a new set of challenges in design, production and quality.

Working with LED manufacturers reveals a common problem: how to effectively add phosphor to the silicone encapsulant without having it settle or incur processing problems like curing too soon, deairing and bubbles. A study was done to evaluate two silicone encapsulation materials for their ability to maintain phosphor in solution for ease of manufacturing...

Working with LED manufacturers reveals a common problem: how to effectively add phosphor to the silicone encapsulant without having it settle or incur processing problems like curing too soon, deairing and bubbles. A study was done to evaluate two silicone encapsulation materials for their ability to maintain phosphor in solution for ease of manufacturing and production of white light emitting diodes. The phosphor dispersions were evaluated over a large temperature range, -40 to 150°C, to attempt to understand the material in the most broad and general way. This temperature range was subsequently divided into storage, -40°C to –20°C, dispensing, 15°C to 35°C, and curing, > 40°C, recognizing these portions of the range have unique requirements for production applications.

Silicone adhesives and coatings have been used for over five decades in the Aerospace industry. Silicone's ability to maintain its elasticity and low modulus over a broad temperature range, -130ºC to 260°C, provides excellent utility in space, where spacecraft are often exposed to these extreme temperatures. A major drawback is...

Silicone adhesives and coatings have been used for over five decades in the Aerospace industry. Silicone's ability to maintain its elasticity and low modulus over a broad temperature range, -130ºC to 260°C, provides excellent utility in space, where spacecraft are often exposed to these extreme temperatures. A major drawback is silicone compounds with high vapor pressure can outgas from the polymer matrix and cause subsequent contamination of expensive equipment and devices. The National Aeronautics & Space Administration (NASA) and the European Space Agency (ESA) recommend testing low outgassing materials per ASTM E 595 prior to use in space which require a maximum Total Mass Loss (TML) of 1% and Collected Volatile Condensable Material (CVCM) of 0.1%. Although a standard for many years, many in the industry question whether these specifications are low enough. This paper characterizes Ultra Low Outgassing™ silicone materials with TML and CVCM one-tenth the standard ASTM E 595 specifications. ASTM E 1559 results are also examined to compare the outgassing behavior of different silicone material