25a). Then the bilayer of PTFE and semi-cured PDMS was transformed into an expected 3D structure using peeling-induced shape morphing. After that, the PDMS was further cured and a 3D PDMS film was obtained after removing the PTFE template (Supplementary Fig. 25c). Any functional tattoos on ...
in the environmental media, its molecular structure deteriorates, its plasticizer volatilizes, the chemical-bond ruptures and the mechanical property changes, even worse it becomes hard and brittle and destroyed. 2) Low heat-resistance. Plastic becomes deformed when heated to a certain temperature,...
High Density Polyethylene (HDPE)is a cost-effective thermoplastic with a linear structure. It has no or low degree of branching. It is flexible, translucent/waxy, and weather resistant. The chemical structure of HDPE is: HDPE Molecular Structure ...
3 provides a framework for estimating plastics based on two common experimental measurements, namely molecular weight and Tg. However, this framework works best for comparing polymers with either all positive or all negative LogP(SA)−1 values. In Fig. 3d, the negative LogP(SA)−1 value ...
Kinetics and crystal structure of poly(lactic acid) crystallized nonisothermally: Effect of plasticizer and nucleating agent Polym. Compos., 31 (12) (2010), pp. 2057-2068 CrossrefView in ScopusGoogle Scholar [16] Waheed N., Lavine M.S., Rutledge G.C. Molecular simulation of crystal growth...
The plastic deformation of a semi-crystalline polyethylene is predicted by a molecular dynamics method. A full-atom model is able to predict the correct amorphous and crystalline phases. Two high molecular weight molecules are involved in these two phases with 3D-periodic conditions. This is one ...
Cyrstal and molecular structure of tricarbonyl[1-4a(10a)-η-10,10- dimethyl-10-sila-9-oxa-9,10-dihydrophenanthrene]chromium and tricarbonyl[5-8a(4b)... In both cases the tricyclic system of the ligand is nonplanar with the dihedral angle between benzene rings being 20.4掳 in II and 15.5...
of different building blocks, which allows the customization of the final material. Depending on the application, these materials could be made stronger, more flexible, scratch-resistant, or rubbery. For instance, one of the versions the researchers created was designed to be used in 3D printing....
Right: a 3D heatmap representing the possibility of obtaining an A-grade nanocomposite film at a specific MMT/CNF/gelatin/glycerol ratio. c, Construction of an ANN-based prediction model via active learning loops, data augmentation and robot–human teaming. d, 3D diagram of Voronoi tessellation ...
During the directional deforming assembly, directional orientations of 2D TiO2-mica and uniform distribution of 1D CNF between the TiO2-mica can be achieved, forming a highly ordered brick-and-mortar structure. Through the above facile process from a molecular to a macroscopic level, all-natural ...