Polymer Surfaces
by
Valente Erasmo Silva (Editor)
Polymer surfaces having micro-nanostructures can be produced using injection molding and hot embossing, high efficiency techniques able to meet the needs of industry for the mass production of polymer parts. Micro-nanosurfaces are in great demand for multiple applications that include antipollution and self-cleaning surfaces, microlenses, dry adhesion surfaces, antireflection coatings, cell culturing and differentiation as well as superhydrophobic surfaces. Polymer Surfaces: Fabrication, Modification and Applications discusses the injection molding of micro-nanostructured polymer surfaces consists of three main technical steps: mold inserts, processing parameters and demolding. The authors also discuss the capabilities of various demolding methods, such as antistiction coatings, to protect and enhance the surface properties of micro-nanostructures. The subsequent contribution focuses on biocompatible and biodegradable hollow nanoparticles prepared via the layer-by-layer deposition of polymer thin films on sacrificial templates. The review encompasses all aspects of nanocapsules from preparation through characterization and the applications as drug carriers. A promising strategy is proposed for facilely and successively replicating randomly arranged pyramids on an etched silicon wafer to polystyrene surface. The authors propose that this fast and efficient replication strategy could be an excellent candidate for developing antireflective protective layers without complicated procedures and expensive materials. A promising strategy was proposed for facilely and successively replicating the natural functional nanostructure of the cicada wing onto polystyrene surfaces in the concluding study. This work may direct the design of gradient wetting surfaces by mimicking the nanopillar structure of cicada wing. This strategy could aid in mimicking bio-inspired functional micro/nanostructures without complicated procedures and expensive materials.
Injection Molding Processing Data 2E
by
Alberto Naranjo; Juan Rodrigo Sanz; Tim A. Osswald (Series edited by); Maria del Pilar Noriega; Juan Diego Sierra
"In setting up an injection molding machine, reliable initial processing data is necessary to optimize and stabilize the process, and guarantee excellent results. This powerful tool will provide you with the most important processing data, such as viscosity, thermal properties, mold temperatures, and suggested heater temperatures for the most commonly used materials in injection molding. This revised and improved second edition covers: - Injection Technology - The Injection Molding Cycle - Useful Equations and Theory - Examples of Calculations of Processing Variables - Polymer Data Pocket-sized and condensed--yet clear and comprehensive!"--
Call Number: TP1150.N35 2019
Publication Date: 2019
Intelligent Optimization of Mold Design and Process Parameters in Injection Molding
by
Mehdi Moayyedian
This book describes an effective framework for setting the right process parameters and new mold design to reduce the current plastic defects in injection molding. It presents a new approach for the optimization of injection molding process via (i) a new mold runner design which leads to 20 percent reduction in scrap rate, 2.5 percent reduction in manufacturing time, and easier ejection of injected part, (ii) a new mold gate design which leads to less plastic defects; and (iii) the introduction of a number of promising alternatives with high moldability indices. Besides presenting important developments of relevance academic research, the book also includes useful information for people working in the injection molding industry, especially in the green manufacturing field.