Lecture

Advanced Additive Manufacturing Technologies: DLP Printing

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

Description

This lecture covers the advanced additive manufacturing technique of DLP printing using continuous wave light for 3D printing. Topics include object spatial resolution factors, review of DLP 3D printing process, absorption coefficients, resin parameters, radical chain polymerization, photoinitiators, monomers, reaction kinetics, and simulation with oxygen inhibition. The lecture also discusses continuous liquid interface production (CLIP) and new developments in the field.

Official source

Ontological neighbourhood

Chemistry

Organic chemistry: Polymer chemistry

Related concepts (32)

3D printing

3D printing or additive manufacturing is the construction of a three-dimensional object from a CAD model or a digital 3D model. It can be done in a variety of processes in which material is deposited, joined or solidified under computer control, with material being added together (such as plastics, liquids or powder grains being fused), typically layer by layer. In the 1980s, 3D printing techniques were considered suitable only for the production of functional or aesthetic prototypes, and a more appropriate term for it at the time was rapid prototyping.

Anionic addition polymerization

In polymer chemistry, anionic addition polymerization is a form of chain-growth polymerization or addition polymerization that involves the polymerization of monomers initiated with anions. The type of reaction has many manifestations, but traditionally vinyl monomers are used. Often anionic polymerization involves living polymerizations, which allows control of structure and composition. As early as 1936, Karl Ziegler proposed that anionic polymerization of styrene and butadiene by consecutive addition of monomer to an alkyl lithium initiator occurred without chain transfer or termination.

Radical polymerization

In polymer chemistry, free-radical polymerization (FRP) is a method of polymerization by which a polymer forms by the successive addition of free-radical building blocks (repeat units). Free radicals can be formed by a number of different mechanisms, usually involving separate initiator molecules. Following its generation, the initiating free radical adds (nonradical) monomer units, thereby growing the polymer chain. Free-radical polymerization is a key synthesis route for obtaining a wide variety of different polymers and materials composites.

Monomer

In chemistry, a monomer (ˈmɒnəmər ; mono-, "one" + -mer, "part") is a molecule that can react together with other monomer molecules to form a larger polymer chain or three-dimensional network in a process called polymerization. Monomers can be classified in many ways. They can be subdivided into two classes, depending on the kind of the polymer that they form. Monomers that participate in condensation polymerization have a different stoichiometry than monomers that participate in addition polymerization: Other classifications include: natural vs synthetic monomers, e.

Polymerization

In polymer chemistry, polymerization (American English), or polymerisation (British English), is a process of reacting monomer molecules together in a chemical reaction to form polymer chains or three-dimensional networks. There are many forms of polymerization and different systems exist to categorize them. In chemical compounds, polymerization can occur via a variety of reaction mechanisms that vary in complexity due to the functional groups present in the reactants and their inherent steric effects.

Related lectures (64)

Photopolymerization Kinetics

Explores the basics of photopolymerization, radical chain polymerization, and the role of oxygen in reaction kinetics.

Advanced Additive Manufacturing Technologies: DLP Printing

Explores DLP printing using continuous wave light for 3D printing and covers topics like resin parameters, radical chain polymerization, and photoinitiators.

Polymer Synthesis: Basics and Techniques

Explores polymer synthesis basics, including step and radical chain polymerization, molecular weight control, copolymerization, and crosslinked polymers for microengineering.

Cationic Polymerization: Synthetic Rubber

Explores cationic polymerization for synthetic rubber production, emphasizing initiation, propagation, and termination steps.

Ionic Chain Polymerization: Mechanisms and Selectivity