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Mold Insert (mold + insert)

Distribution by Scientific Domains

Polymers and Materials Science	100%

Selected Abstracts

Rapid replication of nanostructures made with a polymer using simple injection molding

JOURNAL OF APPLIED POLYMER SCIENCE, Issue 1 2008
C. K. Huang
Abstract It is possible to fabricate nanostructures of 25.5 nm by replication using injection molding. In this study, a silicon calibration grating was used as a mold insert to replicate high-quality nanostructures with a simple custom-made injection machine. The replicated grating with 25.5-nm nanofeatures made with a polymer was of high quality when a high mold temperature was employed and the mold was evacuated. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2008 [source]

A novel fabrication method for the mold insert of microlens arrays by hot embossing molding

POLYMER ENGINEERING & SCIENCE, Issue 12 2006
Y. K. Shen
This paper reports a simple and novel procedure for fabricating the mold insert of microlens arrays. In this paper, an L9 experimental matrix design based on the Taguchi method is constructed to optimize the replication quality of molded microlens arrays. The results of the statistical analysis indicate that the processing temperature is the principal parameter affecting the sag height of the molded microlens array. The 200 × 200 arrays of molded microlens, with a diameter of 150 ,m, a pitch of 200 ,m and a sag height of 31.51 ,m have been successfully fabricated. The average surface roughness of the Ni mold insert is 6.916 nm. The average surface roughness of the molded microlens array is 4.608 nm. The processing temperature is the most important factor for the radius of curvature of molded microlens. POLYM. ENG. SCI. 46:1797,1803, 2006. © 2006 Society of Plastics Engineers. [source]