Patent
US 9,786,407polybutadiene
methylmethacrylate/styrene/acrylate copolymer
XRD data focused around graphite peaks; Scherrer analysis used to determine average graphene crystallite size as a function of silica concentration (FIG. 4) and CSR concentration (FIG. 6).
Electrical conductivity measured as a function of silica concentration (FIG. 5). No silica: 1e-9 S/m; 2.5 vol% silica: 1e-4 S/m; 12 vol% silica: 1 S/m (peak); conductivity drops by ~2 orders of magnitude beyond 12 vol% silica.
Engineering stress-strain curves for PS, PS/GNP, GNP/silica/PS, and GNP/CSR/PS composites (FIGS. 8-9).
Flexural test results for GNP/CSR/PS and GNP/silica/PS composites (FIG. 10).
GNP/silica/PS composite at 2.5 vol% silica | 0.0001 S/m | graphene nanoplatespolystyreneSiO₂ |
GNP/silica/PS composite at 12 vol% silica (peak conductivity) | 1 S/m | graphene nanoplatespolystyreneSiO₂ |
Thickness | 100–150 nm | — |
Thickness | ≤ 1 nm | — |
polybutadiene
methylmethacrylate/styrene/acrylate copolymer
XRD data focused around graphite peaks; Scherrer analysis used to determine average graphene crystallite size as a function of silica concentration (FIG. 4) and CSR concentration (FIG. 6).
Electrical conductivity measured as a function of silica concentration (FIG. 5). No silica: 1e-9 S/m; 2.5 vol% silica: 1e-4 S/m; 12 vol% silica: 1 S/m (peak); conductivity drops by ~2 orders of magnitude beyond 12 vol% silica.
Engineering stress-strain curves for PS, PS/GNP, GNP/silica/PS, and GNP/CSR/PS composites (FIGS. 8-9).
Flexural test results for GNP/CSR/PS and GNP/silica/PS composites (FIG. 10).
GNP/silica/PS composite at 2.5 vol% silica | 0.0001 S/m | graphene nanoplatespolystyreneSiO₂ |
GNP/silica/PS composite at 12 vol% silica (peak conductivity) | 1 S/m | graphene nanoplatespolystyreneSiO₂ |
Thickness | 100–150 nm | — |
Thickness | ≤ 1 nm | — |
polybutadiene
methylmethacrylate/styrene/acrylate copolymer
XRD data focused around graphite peaks; Scherrer analysis used to determine average graphene crystallite size as a function of silica concentration (FIG. 4) and CSR concentration (FIG. 6).
Electrical conductivity measured as a function of silica concentration (FIG. 5). No silica: 1e-9 S/m; 2.5 vol% silica: 1e-4 S/m; 12 vol% silica: 1 S/m (peak); conductivity drops by ~2 orders of magnitude beyond 12 vol% silica.
Engineering stress-strain curves for PS, PS/GNP, GNP/silica/PS, and GNP/CSR/PS composites (FIGS. 8-9).
Flexural test results for GNP/CSR/PS and GNP/silica/PS composites (FIG. 10).
GNP/silica/PS composite at 2.5 vol% silica | 0.0001 S/m | graphene nanoplatespolystyreneSiO₂ |
GNP/silica/PS composite at 12 vol% silica (peak conductivity) | 1 S/m | graphene nanoplatespolystyreneSiO₂ |
Thickness | 100–150 nm | — |
Thickness | ≤ 1 nm | — |
polybutadiene
methylmethacrylate/styrene/acrylate copolymer
XRD data focused around graphite peaks; Scherrer analysis used to determine average graphene crystallite size as a function of silica concentration (FIG. 4) and CSR concentration (FIG. 6).
Electrical conductivity measured as a function of silica concentration (FIG. 5). No silica: 1e-9 S/m; 2.5 vol% silica: 1e-4 S/m; 12 vol% silica: 1 S/m (peak); conductivity drops by ~2 orders of magnitude beyond 12 vol% silica.
Engineering stress-strain curves for PS, PS/GNP, GNP/silica/PS, and GNP/CSR/PS composites (FIGS. 8-9).
Flexural test results for GNP/CSR/PS and GNP/silica/PS composites (FIG. 10).
GNP/silica/PS composite at 2.5 vol% silica | 0.0001 S/m | graphene nanoplatespolystyreneSiO₂ |
GNP/silica/PS composite at 12 vol% silica (peak conductivity) | 1 S/m | graphene nanoplatespolystyreneSiO₂ |
Thickness | 100–150 nm | — |
Thickness | ≤ 1 nm | — |