LLNL’s invention is a photopolymerizable polymer resin that consists of one or more nitrile-functional based polymers. The resin is formulated for SLA based 3D printing allowing for the production of nitrile-containing polymer components that can then be thermally processed into a conductive, highly graphitic materials. The novelty of the invention lies in (1) the photo-curable nitrile-…
Keywords
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- Synthesis and Processing (17)
- Materials for Energy Products (6)
- Additive Manufacturing (4)
- Material Design (4)
- Membranes (2)
- Rare Earth Elements (REEs) (2)
- Magnet Compositions (1)
- Material Characterization (1)
- (-) 3D Printing (2)
- (-) Additively Manufactured (AM) Optics (1)
- (-) Instrumentation (1)
- (-) Structural Materials (1)
![Picture of SLA printed structures using 3D printable nitrile-containing photopolymer resins](/sites/default/files/styles/scale_exact_400x400_/public/2024-04/SLA%20printed%20structures%20using%203D%20printable%20nitrile-containing%20photopolymer%20resins.jpg?itok=cVxxoNNY)
![Printed TPMS membrane structures using nanoporous photoresist](/sites/default/files/styles/scale_exact_400x400_/public/2023-12/Printed%20TPMS%20membrane%20structures.png?itok=siH1EwC9)
LLNL researchers have developed novel advanced manufactured biomimetic 3D-TPMS (triply periodic minimal surface) membrane architectures such as a 3D gyroid membrane. The membrane is printed using LLNL's nano-porous photoresist technology. LLNL’s 3D-TPMS membranes consist of two independent but interpenetrating macropore flow channel systems that are separated by a thin nano-porous wall. 3D-…
![The addition of initiator affects the crossover point of the storage modulus (solid line) and the loss modulus (dashed lined), which indicates curing. As initiator content increases, the reaction proceeds more quickly.](/sites/default/files/styles/scale_exact_400x400_/public/2023-06/Curing%20polysiloxanes.png?itok=5-KLxrp2)
The approach is to use peroxides to modify the reaction kinetics in the production of polysiloxanes. A radical initiator in the presence of a hydride-terminated polysiloxane will increase the rate of curing and reduce manufacturing costs. At a minimum a formulation would contain a hydride-terminated polysiloxane, a platinum catalyst, and an initiator that generates radicals. The content of…
![gradient_composition_glass.jpg gradient_composition_glass](/sites/default/files/styles/scale_exact_400x400_/public/2019-08/gradient_composition_glass.jpg?itok=3r78HGNv)
LLNL researchers have developed a custom resin formulation which uses a dispersing solvent and only a multifunctional monomer as the binding agent. The dispersing solvent system typically used has multiple components meant to achieve excellent dispersal of silica in order to create a flowable resin (rather than a paste). The dispersing agent has low vapor pressure, which allows the 3D printed…
![ccms-water-splitting](/sites/default/files/styles/scale_exact_400x400_/public/2022-06/ccms-water-splitting.jpg?itok=CWvKEEmZ)
Dubbed the "LLNL Chemical Prism", the LLNL system has use wherever there is a need to separate components of a fluid. A few examples include:
- Chemical detection for known and previously unknown chemicals or substances
- Separation of biomolecules from a cellular extract
- Fractionation of a complex mixture of hydrocarbons
- Forensic analysis of…