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Stratasys was founded in 1989, by S. Scott Crump and his wife Lisa Crump in Eden Prairie, Minnesota.The idea for the technology came to Crump in 1988 when he decided to make a toy frog for his young daughter using a glue gun loaded with a mixture of polyethylene and candle wax.
Most coatings have four basic components. These are the resin, solvent, pigment and additive systems [5] but the resin or binder is the key ingredient. Continuing environmental legislation in many countries along with geopolitics such as oil production are ensuring that chemists are increasingly turning to waterborne technology for paint/coatings and since resins or binders are the most ...
The solid ink is liquid at operating temperature and acts like water with sound waves (slower than water) forcing drops out of the orifice in the Howtek style inkjet. Another solid ink printer, the SI-480, was developed and released to the market in 1988 by Dataproducts Corporation. This was a monochrome inkjet printer that met with limited ...
denotes the surface energy of the solid–liquid, liquid–gas, or solid–gas interface θ c {\displaystyle {{\boldsymbol {\theta }}_{c}}} is the measured contact angle A series of solutions with known surface tension (e.g., Dyne solutions) can be used to estimate the surface energy of the polymer substrate qualitatively by observing the ...
Owen Wright Webster (March 25, 1929 – April 13, 2018) was a distinguished member of the organic and polymer chemistry communities. His polymerization technique for making block copolymer dispersing agents is used by DuPont to make ink-jet printer inks. [1]
Plasma polymers also contain internal stress. If a thick layer (e.g. 1 µm) of a plasma polymer is deposited on a glass slide, the plasma polymer will buckle and frequently crack. The curling is attributed to an internal stress formed in the plasma polymer during the polymer deposition.
New York Plastic Surgical Group (NYPS Group) was founded in April 1948 and is the oldest and largest private academic plastic surgery practice in the United States. The group currently has 10+ offices within the New York Metropolitan area, including Garden City, East Hills, Babylon, Huntington, Manhattan, Queens, Brooklyn, Westchester, and Connecticut.
PTFE is a thermoplastic polymer, which is a white solid at room temperature, with a density of about 2200 kg/m 3 and a melting point of 600 K (327 °C; 620 °F). [27] It maintains high strength, toughness and self-lubrication at low temperatures down to 5 K (−268.2 °C; −450.7 °F), and good flexibility at temperatures above 194 K (−79.15 ...