Flexible and thermal conducting multi-walled carbon nanotubes/waterborne polyurethane composite film from in situ polymerization for efficient electromagnetic interference shielding was written by Liu, Wei;Yao, Tingting;Jia, Kun;Gu, Jianyu;Wang, Donghong;Wei, Xuehong. And the article was included in Journal of Materials Science: Materials in Electronics in 2021.Application of 106-73-0 The following contents are mentioned in the article:
A flexible multi-walled carbon nanotubes (MWCNTs)/waterborne polyurethane (WPU) composite film was prepared via in situ polymerization followed by a facile blade coating process. An ultrahigh MWCNTs content of 48.1 wt% was obtained in this film, where MWCNTs without modification of acid or surfactant were uniformly dispersed in the WPU matrix. Therefore, the obtained film exhibited a high elec. conductivity of 16.67 S cm-1 and thermal conductivity of 5.31 W m-1 K-1. Moreover, an outstanding EMI SE of 65.3 dB at the frequency of 110 MHz was achieved with a film thickness of 80μm, which can screen 99.9999% of incident wave at such frequency. The EMI shielding performance of this film is comparable to those of other polymer-based shielding composites with larger thickness (0.5-2 mm) ever reported. Furthermore, excellent flexibility and durability of composite films were demonstrated by bending test, indicating that it is a promising candidate for thermal conduction and EMI shielding of portable and wearable devices. This study involved multiple reactions and reactants, such as Methyl heptanoate (cas: 106-73-0Application of 106-73-0).
Methyl heptanoate (cas: 106-73-0) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Application of 106-73-0
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics