Microcellular plastic

（重定向自Microcellular）

Microcellular foam molding is similar to traditional injection molding with the addition of gas into the molten plastic. Obtained from wenggites's YouTube channel, licensed under CC BY.

Schematic example of the general manufacturing process 1. Polymer base (red) is liquified & added. 2. Precise amounts of supercritical fluid (blue), such as Nitrogen or Carbon-dioxide, are injected into the polymer mix. 3. Homogeneous mixing to create a single phase solution (purple). 4. Polymer is injected into mold cavity. the low pressure prompts the supercritical fluid cells to nucleate and fill out the mold in a uniform manner.

Microcellular plastics, otherwise known as microcellular foam, is a form of manufactured plastic, specially fabricated to contain billions of tiny bubbles less than 50 microns in size (typically from 0.1 to 100 micrometers). This type of plastic is formed by dissolving gas under high pressure into various polymers, relying on the "thermodynamic instability phenomena" to cause the uniform arrangement of the gas bubbles, otherwise known as nucleation. Its main purpose was to reduce material usage while maintaining valuable mechanical properties. The main room for variance in these foams is the gas used to create them; the density of the finished product is determined by the gas used. Depending on the gas used, the density of the foam can lie between 5% and 99% that of the pre-processed plastic. Design parameters, focused more on the final form of the foam and the molding process afterward, include the type of die or mold to be used, as well as the dimensions of the bubbles, or cells, that classify this material as a foam. Since the size of cells is close to the wavelength of light, to the casual observer this foam retains the appearance of a solid light colored plastic.

单词	Microcellular
释义	Microcellular 英语百科 Microcellular plastic （重定向自Microcellular） Microcellular plastics, otherwise known as microcellular foam, is a form of manufactured plastic, specially fabricated to contain billions of tiny bubbles less than 50 microns in size (typically from 0.1 to 100 micrometers). This type of plastic is formed by dissolving gas under high pressure into various polymers, relying on the "thermodynamic instability phenomena" to cause the uniform arrangement of the gas bubbles, otherwise known as nucleation. Its main purpose was to reduce material usage while maintaining valuable mechanical properties. The main room for variance in these foams is the gas used to create them; the density of the finished product is determined by the gas used. Depending on the gas used, the density of the foam can lie between 5% and 99% that of the pre-processed plastic. Design parameters, focused more on the final form of the foam and the molding process afterward, include the type of die or mold to be used, as well as the dimensions of the bubbles, or cells, that classify this material as a foam. Since the size of cells is close to the wavelength of light, to the casual observer this foam retains the appearance of a solid light colored plastic.
随便看	simpsonite的意思 Simpson L.的意思 Simpson Lagoon的意思 Simpson lamp的意思 Simpson light的意思 Simpson method的意思 simpson mill的意思 Simpson, Mt.的意思 Simpson obstetrical forceps的意思 Simpson, O.J.的意思 Simpson Pen.的意思 Simpson perforator的意思 Simpson, R.的意思 Simpson Rule的意思 Simpsons的意思 Simpson, Sir James Young的意思 Simpson Smith suction tube的意思 Simpson splint的意思 Simpsons Rule的意思 Simpsons, The的意思 Simpson Str.的意思 Simpson syndrome的意思 Simpson uterine sound的意思 Simpsonville的意思 Simpson, Wallis的意思